/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 07:55:09,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 07:55:09,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 07:55:09,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 07:55:09,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 07:55:09,962 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 07:55:09,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 07:55:09,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 07:55:09,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 07:55:09,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 07:55:09,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 07:55:09,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 07:55:09,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 07:55:09,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 07:55:09,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 07:55:09,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 07:55:09,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 07:55:09,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 07:55:09,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 07:55:10,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 07:55:10,001 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 07:55:10,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 07:55:10,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 07:55:10,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 07:55:10,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 07:55:10,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 07:55:10,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 07:55:10,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 07:55:10,017 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 07:55:10,057 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 07:55:10,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 07:55:10,060 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 07:55:10,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 07:55:10,060 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 07:55:10,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 07:55:10,061 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 07:55:10,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 07:55:10,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 07:55:10,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 07:55:10,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 07:55:10,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 07:55:10,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 07:55:10,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 07:55:10,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 07:55:10,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 07:55:10,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 07:55:10,065 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 07:55:10,065 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 07:55:10,065 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 07:55:10,065 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 07:55:10,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 07:55:10,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 07:55:10,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 07:55:10,403 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 07:55:10,404 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 07:55:10,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-03-26 07:55:10,406 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-03-26 07:55:10,445 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 07:55:10,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 07:55:10,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 07:55:10,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 07:55:10,448 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 07:55:10,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 07:55:10,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 07:55:10,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 07:55:10,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 07:55:10,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... [2021-03-26 07:55:10,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 07:55:10,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 07:55:10,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 07:55:10,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 07:55:10,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 07:55:10,544 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 07:55:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 07:55:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 07:55:10,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 07:55:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 07:55:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 07:55:10,545 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 07:55:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 07:55:10,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 07:55:10,546 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 07:55:10,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 07:55:10,686 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 07:55:10,687 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 07:55:10 BoogieIcfgContainer [2021-03-26 07:55:10,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 07:55:10,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 07:55:10,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 07:55:10,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 07:55:10,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 07:55:10" (1/2) ... [2021-03-26 07:55:10,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77a50e96 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 07:55:10, skipping insertion in model container [2021-03-26 07:55:10,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 07:55:10" (2/2) ... [2021-03-26 07:55:10,693 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-03-26 07:55:10,697 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 07:55:10,700 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 07:55:10,701 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 07:55:10,727 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 07:55:10,744 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 07:55:10,772 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 07:55:10,772 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 07:55:10,773 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 07:55:10,773 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 07:55:10,773 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 07:55:10,773 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 07:55:10,773 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 07:55:10,773 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 07:55:10,787 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 42 places, 35 transitions, 86 flow [2021-03-26 07:55:10,828 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2021-03-26 07:55:10,828 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 07:55:10,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 0/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 07:55:10,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 35 transitions, 86 flow [2021-03-26 07:55:10,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 31 transitions, 74 flow [2021-03-26 07:55:10,836 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:10,848 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 31 transitions, 74 flow [2021-03-26 07:55:10,852 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 31 transitions, 74 flow [2021-03-26 07:55:10,854 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 74 flow [2021-03-26 07:55:10,873 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-03-26 07:55:10,873 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 07:55:10,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 31 events. 0/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 07:55:10,876 INFO L142 LiptonReduction]: Number of co-enabled transitions 240 [2021-03-26 07:55:11,268 INFO L154 LiptonReduction]: Checked pairs total: 758 [2021-03-26 07:55:11,268 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 07:55:11,273 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 438 [2021-03-26 07:55:11,293 INFO L129 PetriNetUnfolder]: 0/20 cut-off events. [2021-03-26 07:55:11,293 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 07:55:11,293 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:11,294 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:11,294 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:11,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:11,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1595522395, now seen corresponding path program 1 times [2021-03-26 07:55:11,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:11,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350162253] [2021-03-26 07:55:11,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:11,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,518 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 07:55:11,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:11,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350162253] [2021-03-26 07:55:11,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:11,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 07:55:11,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100727963] [2021-03-26 07:55:11,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:11,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:11,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:11,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:11,563 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 45 [2021-03-26 07:55:11,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 21 transitions, 54 flow. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:11,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 45 [2021-03-26 07:55:11,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:11,690 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 07:55:11,690 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-26 07:55:11,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 45 events. 1/45 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 114 event pairs, 0 based on Foata normal form. 1/45 useless extension candidates. Maximal degree in co-relation 52. Up to 5 conditions per place. [2021-03-26 07:55:11,693 INFO L132 encePairwiseOnDemand]: 39/45 looper letters, 7 selfloop transitions, 7 changer transitions 2/31 dead transitions. [2021-03-26 07:55:11,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 31 transitions, 106 flow [2021-03-26 07:55:11,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 07:55:11,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 07:55:11,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 297 transitions. [2021-03-26 07:55:11,709 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.825 [2021-03-26 07:55:11,710 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 297 transitions. [2021-03-26 07:55:11,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 297 transitions. [2021-03-26 07:55:11,713 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:11,715 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 297 transitions. [2021-03-26 07:55:11,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 37.125) internal successors, (297), 8 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,730 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 45.0) internal successors, (405), 9 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,732 INFO L185 Difference]: Start difference. First operand has 28 places, 21 transitions, 54 flow. Second operand 8 states and 297 transitions. [2021-03-26 07:55:11,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 31 transitions, 106 flow [2021-03-26 07:55:11,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 98 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 07:55:11,738 INFO L241 Difference]: Finished difference. Result has 34 places, 26 transitions, 84 flow [2021-03-26 07:55:11,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2021-03-26 07:55:11,743 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 6 predicate places. [2021-03-26 07:55:11,743 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:11,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 26 transitions, 84 flow [2021-03-26 07:55:11,744 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 26 transitions, 84 flow [2021-03-26 07:55:11,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 26 transitions, 84 flow [2021-03-26 07:55:11,756 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 07:55:11,757 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 07:55:11,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 38 events. 0/38 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 07:55:11,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 122 [2021-03-26 07:55:11,845 INFO L154 LiptonReduction]: Checked pairs total: 334 [2021-03-26 07:55:11,846 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 07:55:11,846 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 103 [2021-03-26 07:55:11,849 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 87 flow [2021-03-26 07:55:11,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,849 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:11,850 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:11,850 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 07:55:11,850 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:11,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:11,851 INFO L82 PathProgramCache]: Analyzing trace with hash -317260477, now seen corresponding path program 2 times [2021-03-26 07:55:11,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:11,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958388006] [2021-03-26 07:55:11,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:11,924 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:11,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 43.8 percent of original size [2021-03-26 07:55:11,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:11,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958388006] [2021-03-26 07:55:11,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:11,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 07:55:11,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835164620] [2021-03-26 07:55:11,972 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:11,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:11,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:11,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:11,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 49 [2021-03-26 07:55:11,989 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 87 flow. Second operand has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:11,989 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:11,990 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 49 [2021-03-26 07:55:11,994 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:12,126 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2021-03-26 07:55:12,127 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-26 07:55:12,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 38 events. 1/38 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 86 event pairs, 0 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 72. Up to 7 conditions per place. [2021-03-26 07:55:12,127 INFO L132 encePairwiseOnDemand]: 41/49 looper letters, 4 selfloop transitions, 5 changer transitions 5/28 dead transitions. [2021-03-26 07:55:12,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 28 transitions, 130 flow [2021-03-26 07:55:12,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 07:55:12,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 07:55:12,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 330 transitions. [2021-03-26 07:55:12,129 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7482993197278912 [2021-03-26 07:55:12,129 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 330 transitions. [2021-03-26 07:55:12,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 330 transitions. [2021-03-26 07:55:12,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:12,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 330 transitions. [2021-03-26 07:55:12,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 36.666666666666664) internal successors, (330), 9 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,132 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 49.0) internal successors, (490), 10 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,132 INFO L185 Difference]: Start difference. First operand has 31 places, 25 transitions, 87 flow. Second operand 9 states and 330 transitions. [2021-03-26 07:55:12,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 28 transitions, 130 flow [2021-03-26 07:55:12,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 28 transitions, 126 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 07:55:12,134 INFO L241 Difference]: Finished difference. Result has 39 places, 22 transitions, 82 flow [2021-03-26 07:55:12,134 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=82, PETRI_PLACES=39, PETRI_TRANSITIONS=22} [2021-03-26 07:55:12,135 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 11 predicate places. [2021-03-26 07:55:12,135 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:12,135 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 22 transitions, 82 flow [2021-03-26 07:55:12,135 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 22 transitions, 82 flow [2021-03-26 07:55:12,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 22 transitions, 82 flow [2021-03-26 07:55:12,139 INFO L129 PetriNetUnfolder]: 0/27 cut-off events. [2021-03-26 07:55:12,139 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-03-26 07:55:12,140 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 27 events. 0/27 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-03-26 07:55:12,140 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 07:55:12,271 INFO L154 LiptonReduction]: Checked pairs total: 145 [2021-03-26 07:55:12,271 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 07:55:12,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 136 [2021-03-26 07:55:12,272 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 20 transitions, 78 flow [2021-03-26 07:55:12,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 35.857142857142854) internal successors, (251), 7 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,272 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:12,272 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:12,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 07:55:12,273 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:12,273 INFO L82 PathProgramCache]: Analyzing trace with hash 972492051, now seen corresponding path program 1 times [2021-03-26 07:55:12,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:12,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923777537] [2021-03-26 07:55:12,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:12,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 07:55:12,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 07:55:12,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 07:55:12,298 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:12,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 07:55:12,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:12,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923777537] [2021-03-26 07:55:12,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:12,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 07:55:12,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646409512] [2021-03-26 07:55:12,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:12,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:12,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:12,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:12,317 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 55 [2021-03-26 07:55:12,317 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 20 transitions, 78 flow. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,317 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:12,318 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 55 [2021-03-26 07:55:12,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:12,408 INFO L129 PetriNetUnfolder]: 22/107 cut-off events. [2021-03-26 07:55:12,409 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2021-03-26 07:55:12,409 INFO L84 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 107 events. 22/107 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 469 event pairs, 8 based on Foata normal form. 6/113 useless extension candidates. Maximal degree in co-relation 257. Up to 25 conditions per place. [2021-03-26 07:55:12,410 INFO L132 encePairwiseOnDemand]: 42/55 looper letters, 20 selfloop transitions, 16 changer transitions 6/49 dead transitions. [2021-03-26 07:55:12,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 49 transitions, 279 flow [2021-03-26 07:55:12,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 07:55:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 07:55:12,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 314 transitions. [2021-03-26 07:55:12,412 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6343434343434343 [2021-03-26 07:55:12,412 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 314 transitions. [2021-03-26 07:55:12,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 314 transitions. [2021-03-26 07:55:12,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:12,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 314 transitions. [2021-03-26 07:55:12,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 34.888888888888886) internal successors, (314), 9 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,414 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 55.0) internal successors, (550), 10 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,414 INFO L185 Difference]: Start difference. First operand has 34 places, 20 transitions, 78 flow. Second operand 9 states and 314 transitions. [2021-03-26 07:55:12,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 49 transitions, 279 flow [2021-03-26 07:55:12,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 49 transitions, 217 flow, removed 8 selfloop flow, removed 9 redundant places. [2021-03-26 07:55:12,417 INFO L241 Difference]: Finished difference. Result has 37 places, 34 transitions, 169 flow [2021-03-26 07:55:12,417 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=169, PETRI_PLACES=37, PETRI_TRANSITIONS=34} [2021-03-26 07:55:12,418 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 9 predicate places. [2021-03-26 07:55:12,418 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:12,418 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 34 transitions, 169 flow [2021-03-26 07:55:12,418 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 34 transitions, 169 flow [2021-03-26 07:55:12,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 34 transitions, 169 flow [2021-03-26 07:55:12,424 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-03-26 07:55:12,425 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-26 07:55:12,425 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 62 events. 3/62 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 218 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 89. Up to 11 conditions per place. [2021-03-26 07:55:12,426 INFO L142 LiptonReduction]: Number of co-enabled transitions 66 [2021-03-26 07:55:12,630 INFO L154 LiptonReduction]: Checked pairs total: 147 [2021-03-26 07:55:12,630 INFO L156 LiptonReduction]: Total number of compositions: 6 [2021-03-26 07:55:12,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 212 [2021-03-26 07:55:12,631 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 33 transitions, 171 flow [2021-03-26 07:55:12,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:12,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:12,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 07:55:12,632 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:12,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:12,632 INFO L82 PathProgramCache]: Analyzing trace with hash -519746767, now seen corresponding path program 1 times [2021-03-26 07:55:12,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:12,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708821363] [2021-03-26 07:55:12,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:12,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:12,643 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:12,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:12,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:12,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708821363] [2021-03-26 07:55:12,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:12,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 07:55:12,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307799699] [2021-03-26 07:55:12,647 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 07:55:12,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:12,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 07:55:12,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 07:55:12,648 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 61 [2021-03-26 07:55:12,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 33 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:12,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 61 [2021-03-26 07:55:12,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:12,664 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 07:55:12,664 INFO L130 PetriNetUnfolder]: For 22/25 co-relation queries the response was YES. [2021-03-26 07:55:12,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 45 events. 1/45 cut-off events. For 22/25 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 147 event pairs, 0 based on Foata normal form. 2/41 useless extension candidates. Maximal degree in co-relation 60. Up to 11 conditions per place. [2021-03-26 07:55:12,664 INFO L132 encePairwiseOnDemand]: 57/61 looper letters, 7 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2021-03-26 07:55:12,664 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 168 flow [2021-03-26 07:55:12,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 07:55:12,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 07:55:12,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 146 transitions. [2021-03-26 07:55:12,666 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7978142076502732 [2021-03-26 07:55:12,666 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 146 transitions. [2021-03-26 07:55:12,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 146 transitions. [2021-03-26 07:55:12,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:12,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 146 transitions. [2021-03-26 07:55:12,667 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,667 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,667 INFO L185 Difference]: Start difference. First operand has 34 places, 33 transitions, 171 flow. Second operand 3 states and 146 transitions. [2021-03-26 07:55:12,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 168 flow [2021-03-26 07:55:12,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 164 flow, removed 2 selfloop flow, removed 1 redundant places. [2021-03-26 07:55:12,669 INFO L241 Difference]: Finished difference. Result has 36 places, 30 transitions, 156 flow [2021-03-26 07:55:12,669 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=36, PETRI_TRANSITIONS=30} [2021-03-26 07:55:12,670 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2021-03-26 07:55:12,670 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:12,670 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 30 transitions, 156 flow [2021-03-26 07:55:12,670 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 30 transitions, 156 flow [2021-03-26 07:55:12,670 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 30 transitions, 156 flow [2021-03-26 07:55:12,675 INFO L129 PetriNetUnfolder]: 1/45 cut-off events. [2021-03-26 07:55:12,675 INFO L130 PetriNetUnfolder]: For 17/18 co-relation queries the response was YES. [2021-03-26 07:55:12,675 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 45 events. 1/45 cut-off events. For 17/18 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 142 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 56. Up to 8 conditions per place. [2021-03-26 07:55:12,676 INFO L142 LiptonReduction]: Number of co-enabled transitions 58 [2021-03-26 07:55:12,685 INFO L154 LiptonReduction]: Checked pairs total: 72 [2021-03-26 07:55:12,686 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 07:55:12,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 07:55:12,687 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 30 transitions, 156 flow [2021-03-26 07:55:12,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,687 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:12,687 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:12,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 07:55:12,687 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:12,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:12,688 INFO L82 PathProgramCache]: Analyzing trace with hash -618998314, now seen corresponding path program 1 times [2021-03-26 07:55:12,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:12,688 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717285085] [2021-03-26 07:55:12,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:12,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 07:55:12,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 07:55:12,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:12,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 07:55:12,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:12,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:12,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717285085] [2021-03-26 07:55:12,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:12,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 07:55:12,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378667268] [2021-03-26 07:55:12,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 07:55:12,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:12,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 07:55:12,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 07:55:12,725 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 61 [2021-03-26 07:55:12,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,725 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:12,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 61 [2021-03-26 07:55:12,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:12,813 INFO L129 PetriNetUnfolder]: 17/79 cut-off events. [2021-03-26 07:55:12,813 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-03-26 07:55:12,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266 conditions, 79 events. 17/79 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 315 event pairs, 5 based on Foata normal form. 3/63 useless extension candidates. Maximal degree in co-relation 201. Up to 21 conditions per place. [2021-03-26 07:55:12,814 INFO L132 encePairwiseOnDemand]: 48/61 looper letters, 17 selfloop transitions, 12 changer transitions 9/44 dead transitions. [2021-03-26 07:55:12,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 291 flow [2021-03-26 07:55:12,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 07:55:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 07:55:12,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 250 transitions. [2021-03-26 07:55:12,815 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.585480093676815 [2021-03-26 07:55:12,816 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 250 transitions. [2021-03-26 07:55:12,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 250 transitions. [2021-03-26 07:55:12,816 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:12,816 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 250 transitions. [2021-03-26 07:55:12,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 35.714285714285715) internal successors, (250), 7 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 61.0) internal successors, (488), 8 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,818 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 61.0) internal successors, (488), 8 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:12,818 INFO L185 Difference]: Start difference. First operand has 36 places, 30 transitions, 156 flow. Second operand 7 states and 250 transitions. [2021-03-26 07:55:12,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 291 flow [2021-03-26 07:55:12,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 44 transitions, 277 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 07:55:12,820 INFO L241 Difference]: Finished difference. Result has 43 places, 29 transitions, 185 flow [2021-03-26 07:55:12,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=185, PETRI_PLACES=43, PETRI_TRANSITIONS=29} [2021-03-26 07:55:12,821 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 15 predicate places. [2021-03-26 07:55:12,821 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:12,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 43 places, 29 transitions, 185 flow [2021-03-26 07:55:12,821 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 43 places, 29 transitions, 185 flow [2021-03-26 07:55:12,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 185 flow [2021-03-26 07:55:12,825 INFO L129 PetriNetUnfolder]: 4/45 cut-off events. [2021-03-26 07:55:12,825 INFO L130 PetriNetUnfolder]: For 45/48 co-relation queries the response was YES. [2021-03-26 07:55:12,826 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 45 events. 4/45 cut-off events. For 45/48 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 138 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 130. Up to 10 conditions per place. [2021-03-26 07:55:12,826 INFO L142 LiptonReduction]: Number of co-enabled transitions 30 [2021-03-26 07:55:13,039 INFO L154 LiptonReduction]: Checked pairs total: 29 [2021-03-26 07:55:13,040 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 07:55:13,040 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 219 [2021-03-26 07:55:13,043 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 28 transitions, 188 flow [2021-03-26 07:55:13,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:13,044 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:13,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 07:55:13,045 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:13,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:13,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1992062919, now seen corresponding path program 1 times [2021-03-26 07:55:13,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:13,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180210360] [2021-03-26 07:55:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:13,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:13,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180210360] [2021-03-26 07:55:13,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:13,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 07:55:13,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429832303] [2021-03-26 07:55:13,059 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 07:55:13,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:13,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 07:55:13,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 07:55:13,060 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 68 [2021-03-26 07:55:13,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 28 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:13,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 68 [2021-03-26 07:55:13,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:13,072 INFO L129 PetriNetUnfolder]: 2/33 cut-off events. [2021-03-26 07:55:13,073 INFO L130 PetriNetUnfolder]: For 52/53 co-relation queries the response was YES. [2021-03-26 07:55:13,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124 conditions, 33 events. 2/33 cut-off events. For 52/53 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 76 event pairs, 0 based on Foata normal form. 1/30 useless extension candidates. Maximal degree in co-relation 63. Up to 9 conditions per place. [2021-03-26 07:55:13,073 INFO L132 encePairwiseOnDemand]: 64/68 looper letters, 6 selfloop transitions, 2 changer transitions 1/26 dead transitions. [2021-03-26 07:55:13,073 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 26 transitions, 185 flow [2021-03-26 07:55:13,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 07:55:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 07:55:13,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 172 transitions. [2021-03-26 07:55:13,074 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2021-03-26 07:55:13,074 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 172 transitions. [2021-03-26 07:55:13,075 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 172 transitions. [2021-03-26 07:55:13,075 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:13,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 172 transitions. [2021-03-26 07:55:13,075 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 68.0) internal successors, (272), 4 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,076 INFO L185 Difference]: Start difference. First operand has 40 places, 28 transitions, 188 flow. Second operand 3 states and 172 transitions. [2021-03-26 07:55:13,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 26 transitions, 185 flow [2021-03-26 07:55:13,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 26 transitions, 158 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-26 07:55:13,078 INFO L241 Difference]: Finished difference. Result has 36 places, 25 transitions, 148 flow [2021-03-26 07:55:13,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=36, PETRI_TRANSITIONS=25} [2021-03-26 07:55:13,079 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 8 predicate places. [2021-03-26 07:55:13,079 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:13,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 25 transitions, 148 flow [2021-03-26 07:55:13,079 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 25 transitions, 148 flow [2021-03-26 07:55:13,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 25 transitions, 148 flow [2021-03-26 07:55:13,082 INFO L129 PetriNetUnfolder]: 2/31 cut-off events. [2021-03-26 07:55:13,083 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-03-26 07:55:13,083 INFO L84 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 31 events. 2/31 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 64 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2021-03-26 07:55:13,083 INFO L142 LiptonReduction]: Number of co-enabled transitions 16 [2021-03-26 07:55:13,085 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 07:55:13,085 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 07:55:13,085 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-03-26 07:55:13,086 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 25 transitions, 148 flow [2021-03-26 07:55:13,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,086 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:13,086 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:13,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 07:55:13,086 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:13,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1999098223, now seen corresponding path program 1 times [2021-03-26 07:55:13,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:13,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903508475] [2021-03-26 07:55:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:13,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,130 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,137 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 07:55:13,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 07:55:13,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:13,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903508475] [2021-03-26 07:55:13,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:13,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 07:55:13,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238652896] [2021-03-26 07:55:13,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:13,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:13,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:13,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:13,152 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 68 [2021-03-26 07:55:13,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 25 transitions, 148 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:13,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 68 [2021-03-26 07:55:13,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:13,238 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2021-03-26 07:55:13,238 INFO L130 PetriNetUnfolder]: For 44/46 co-relation queries the response was YES. [2021-03-26 07:55:13,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 37 events. 4/37 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 81 event pairs, 0 based on Foata normal form. 3/36 useless extension candidates. Maximal degree in co-relation 75. Up to 15 conditions per place. [2021-03-26 07:55:13,238 INFO L132 encePairwiseOnDemand]: 54/68 looper letters, 8 selfloop transitions, 11 changer transitions 3/27 dead transitions. [2021-03-26 07:55:13,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 199 flow [2021-03-26 07:55:13,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 07:55:13,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 07:55:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 264 transitions. [2021-03-26 07:55:13,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2021-03-26 07:55:13,240 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 264 transitions. [2021-03-26 07:55:13,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 264 transitions. [2021-03-26 07:55:13,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:13,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 264 transitions. [2021-03-26 07:55:13,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 33.0) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,242 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 68.0) internal successors, (612), 9 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,242 INFO L185 Difference]: Start difference. First operand has 35 places, 25 transitions, 148 flow. Second operand 8 states and 264 transitions. [2021-03-26 07:55:13,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 199 flow [2021-03-26 07:55:13,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 27 transitions, 187 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 07:55:13,244 INFO L241 Difference]: Finished difference. Result has 40 places, 22 transitions, 143 flow [2021-03-26 07:55:13,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=143, PETRI_PLACES=40, PETRI_TRANSITIONS=22} [2021-03-26 07:55:13,245 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2021-03-26 07:55:13,245 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:13,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 22 transitions, 143 flow [2021-03-26 07:55:13,245 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 22 transitions, 143 flow [2021-03-26 07:55:13,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 22 transitions, 143 flow [2021-03-26 07:55:13,248 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-03-26 07:55:13,248 INFO L130 PetriNetUnfolder]: For 25/26 co-relation queries the response was YES. [2021-03-26 07:55:13,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 28 events. 1/28 cut-off events. For 25/26 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 33. Up to 6 conditions per place. [2021-03-26 07:55:13,248 INFO L142 LiptonReduction]: Number of co-enabled transitions 12 [2021-03-26 07:55:13,322 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 07:55:13,322 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 07:55:13,323 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-03-26 07:55:13,327 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 20 transitions, 135 flow [2021-03-26 07:55:13,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,327 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:13,328 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:13,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 07:55:13,331 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:13,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:13,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1461161260, now seen corresponding path program 1 times [2021-03-26 07:55:13,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:13,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856776343] [2021-03-26 07:55:13,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:13,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:13,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856776343] [2021-03-26 07:55:13,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:13,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 07:55:13,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651849036] [2021-03-26 07:55:13,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:13,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:13,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:13,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:13,406 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 70 [2021-03-26 07:55:13,406 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 20 transitions, 135 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,406 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:13,406 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 70 [2021-03-26 07:55:13,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:13,474 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-03-26 07:55:13,474 INFO L130 PetriNetUnfolder]: For 49/52 co-relation queries the response was YES. [2021-03-26 07:55:13,474 INFO L84 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 23 events. 2/23 cut-off events. For 49/52 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 2/24 useless extension candidates. Maximal degree in co-relation 50. Up to 9 conditions per place. [2021-03-26 07:55:13,475 INFO L132 encePairwiseOnDemand]: 60/70 looper letters, 5 selfloop transitions, 8 changer transitions 2/20 dead transitions. [2021-03-26 07:55:13,475 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 20 transitions, 165 flow [2021-03-26 07:55:13,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 07:55:13,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 07:55:13,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 256 transitions. [2021-03-26 07:55:13,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45714285714285713 [2021-03-26 07:55:13,481 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 256 transitions. [2021-03-26 07:55:13,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 256 transitions. [2021-03-26 07:55:13,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:13,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 256 transitions. [2021-03-26 07:55:13,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 32.0) internal successors, (256), 8 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,483 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,484 INFO L185 Difference]: Start difference. First operand has 38 places, 20 transitions, 135 flow. Second operand 8 states and 256 transitions. [2021-03-26 07:55:13,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 20 transitions, 165 flow [2021-03-26 07:55:13,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 20 transitions, 108 flow, removed 9 selfloop flow, removed 12 redundant places. [2021-03-26 07:55:13,487 INFO L241 Difference]: Finished difference. Result has 35 places, 18 transitions, 93 flow [2021-03-26 07:55:13,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=93, PETRI_PLACES=35, PETRI_TRANSITIONS=18} [2021-03-26 07:55:13,487 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 7 predicate places. [2021-03-26 07:55:13,488 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:13,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 18 transitions, 93 flow [2021-03-26 07:55:13,488 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 18 transitions, 93 flow [2021-03-26 07:55:13,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 18 transitions, 93 flow [2021-03-26 07:55:13,493 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-26 07:55:13,493 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-26 07:55:13,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 19 events. 1/19 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. [2021-03-26 07:55:13,494 INFO L142 LiptonReduction]: Number of co-enabled transitions 8 [2021-03-26 07:55:13,495 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 07:55:13,495 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 07:55:13,495 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-03-26 07:55:13,496 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 18 transitions, 93 flow [2021-03-26 07:55:13,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,496 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:13,496 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:13,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 07:55:13,497 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:13,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:13,497 INFO L82 PathProgramCache]: Analyzing trace with hash -523195700, now seen corresponding path program 1 times [2021-03-26 07:55:13,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:13,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040752354] [2021-03-26 07:55:13,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:13,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 07:55:13,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:13,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040752354] [2021-03-26 07:55:13,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:13,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 07:55:13,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515194245] [2021-03-26 07:55:13,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:13,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:13,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:13,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:13,566 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 70 [2021-03-26 07:55:13,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 18 transitions, 93 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:13,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 70 [2021-03-26 07:55:13,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:13,622 INFO L129 PetriNetUnfolder]: 1/18 cut-off events. [2021-03-26 07:55:13,622 INFO L130 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2021-03-26 07:55:13,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 18 events. 1/18 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 14 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2021-03-26 07:55:13,623 INFO L132 encePairwiseOnDemand]: 61/70 looper letters, 3 selfloop transitions, 4 changer transitions 5/17 dead transitions. [2021-03-26 07:55:13,623 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 17 transitions, 107 flow [2021-03-26 07:55:13,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 07:55:13,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 07:55:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2021-03-26 07:55:13,624 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4517857142857143 [2021-03-26 07:55:13,624 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 253 transitions. [2021-03-26 07:55:13,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 253 transitions. [2021-03-26 07:55:13,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:13,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 253 transitions. [2021-03-26 07:55:13,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,626 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 70.0) internal successors, (630), 9 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,626 INFO L185 Difference]: Start difference. First operand has 32 places, 18 transitions, 93 flow. Second operand 8 states and 253 transitions. [2021-03-26 07:55:13,627 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 17 transitions, 107 flow [2021-03-26 07:55:13,627 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 17 transitions, 78 flow, removed 2 selfloop flow, removed 9 redundant places. [2021-03-26 07:55:13,627 INFO L241 Difference]: Finished difference. Result has 30 places, 12 transitions, 46 flow [2021-03-26 07:55:13,627 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=46, PETRI_PLACES=30, PETRI_TRANSITIONS=12} [2021-03-26 07:55:13,628 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2021-03-26 07:55:13,628 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:13,628 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 12 transitions, 46 flow [2021-03-26 07:55:13,628 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 12 transitions, 46 flow [2021-03-26 07:55:13,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 24 places, 12 transitions, 46 flow [2021-03-26 07:55:13,630 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2021-03-26 07:55:13,630 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-03-26 07:55:13,630 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 12 events. 0/12 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 07:55:13,630 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-26 07:55:13,662 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 07:55:13,662 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 07:55:13,662 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 07:55:13,662 INFO L480 AbstractCegarLoop]: Abstraction has has 23 places, 11 transitions, 44 flow [2021-03-26 07:55:13,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,663 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 07:55:13,663 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 07:55:13,663 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 07:55:13,663 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 07:55:13,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 07:55:13,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1625607580, now seen corresponding path program 1 times [2021-03-26 07:55:13,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 07:55:13,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528995091] [2021-03-26 07:55:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 07:55:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 07:55:13,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,698 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 07:55:13,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 07:55:13,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 07:55:13,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 07:55:13,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 07:55:13,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528995091] [2021-03-26 07:55:13,708 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 07:55:13,708 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 07:55:13,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616788708] [2021-03-26 07:55:13,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 07:55:13,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 07:55:13,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 07:55:13,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 07:55:13,709 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 71 [2021-03-26 07:55:13,709 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 11 transitions, 44 flow. Second operand has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,710 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 07:55:13,710 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 71 [2021-03-26 07:55:13,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 07:55:13,766 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-26 07:55:13,766 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 07:55:13,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 6 events. 0/6 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/7 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 07:55:13,766 INFO L132 encePairwiseOnDemand]: 66/71 looper letters, 0 selfloop transitions, 0 changer transitions 6/6 dead transitions. [2021-03-26 07:55:13,766 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 20 places, 6 transitions, 33 flow [2021-03-26 07:55:13,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 07:55:13,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 07:55:13,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 185 transitions. [2021-03-26 07:55:13,767 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43427230046948356 [2021-03-26 07:55:13,767 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 185 transitions. [2021-03-26 07:55:13,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 185 transitions. [2021-03-26 07:55:13,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 07:55:13,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 185 transitions. [2021-03-26 07:55:13,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,769 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 71.0) internal successors, (497), 7 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,769 INFO L185 Difference]: Start difference. First operand has 23 places, 11 transitions, 44 flow. Second operand 6 states and 185 transitions. [2021-03-26 07:55:13,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 20 places, 6 transitions, 33 flow [2021-03-26 07:55:13,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 14 places, 6 transitions, 22 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 07:55:13,770 INFO L241 Difference]: Finished difference. Result has 14 places, 0 transitions, 0 flow [2021-03-26 07:55:13,770 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=14, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=14, PETRI_TRANSITIONS=0} [2021-03-26 07:55:13,770 INFO L343 CegarLoopForPetriNet]: 28 programPoint places, -14 predicate places. [2021-03-26 07:55:13,770 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 07:55:13,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-26 07:55:13,771 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 14 places, 0 transitions, 0 flow [2021-03-26 07:55:13,771 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 07:55:13,771 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 07:55:13,771 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 07:55:13,771 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-26 07:55:13,771 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 07:55:13,771 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 07:55:13,772 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 07:55:13,772 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2 [2021-03-26 07:55:13,772 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 07:55:13,773 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 07:55:13,773 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 07:55:13,776 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 07:55:13 BasicIcfg [2021-03-26 07:55:13,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 07:55:13,777 INFO L168 Benchmark]: Toolchain (without parser) took 3330.25 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 236.9 MB in the beginning and 399.0 MB in the end (delta: -162.1 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.0 GB. [2021-03-26 07:55:13,777 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.52 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 07:55:13,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 07:55:13,778 INFO L168 Benchmark]: Boogie Preprocessor took 12.03 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.4 MB in the end (delta: 851.5 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 07:55:13,778 INFO L168 Benchmark]: RCFGBuilder took 202.88 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 238.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.0 GB. [2021-03-26 07:55:13,778 INFO L168 Benchmark]: TraceAbstraction took 3087.74 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 238.5 MB in the beginning and 399.0 MB in the end (delta: -160.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. [2021-03-26 07:55:13,779 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 0.52 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 22.79 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.03 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.4 MB in the end (delta: 851.5 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 202.88 ms. Allocated memory is still 255.9 MB. Free memory was 234.3 MB in the beginning and 238.9 MB in the end (delta: -4.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3087.74 ms. Allocated memory was 255.9 MB in the beginning and 423.6 MB in the end (delta: 167.8 MB). Free memory was 238.5 MB in the beginning and 399.0 MB in the end (delta: -160.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 416.1ms, 38 PlacesBefore, 28 PlacesAfterwards, 31 TransitionsBefore, 21 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 758 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 409, positive: 333, positive conditional: 333, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 230, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 230, positive: 195, positive conditional: 0, positive unconditional: 195, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 230, positive: 187, positive conditional: 0, positive unconditional: 187, negative: 43, negative conditional: 0, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 179, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 128, negative conditional: 0, negative unconditional: 128, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 409, positive: 138, positive conditional: 138, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 230, unknown conditional: 230, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 79, Positive cache size: 59, Positive conditional cache size: 59, Positive unconditional cache size: 0, Negative cache size: 20, Negative conditional cache size: 20, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.8ms, 34 PlacesBefore, 31 PlacesAfterwards, 26 TransitionsBefore, 25 TransitionsAfterwards, 122 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 334 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, positive: 64, positive conditional: 64, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20, positive: 20, positive conditional: 6, positive unconditional: 14, 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: 20, positive: 20, positive conditional: 6, positive unconditional: 14, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.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.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 106, positive: 44, positive conditional: 44, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 20, unknown conditional: 20, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 78, Positive cache size: 64, Positive conditional cache size: 64, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 135.8ms, 39 PlacesBefore, 34 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 145 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 58, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 15, positive conditional: 13, 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: 15, positive: 15, positive conditional: 13, 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: 15, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 58, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 30, Positive conditional cache size: 30, Positive unconditional cache size: 0, Negative cache size: 12, Negative conditional cache size: 12, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 212.1ms, 37 PlacesBefore, 34 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 66 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 147 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 67, positive: 51, positive conditional: 51, positive unconditional: 0, negative: 16, negative conditional: 16, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 24, positive conditional: 12, positive unconditional: 12, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 30, positive: 24, positive conditional: 12, positive unconditional: 12, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 30, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 6, negative conditional: 1, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 30, negative conditional: 3, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 67, positive: 27, positive conditional: 27, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 30, unknown conditional: 30, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 24, Positive conditional cache size: 24, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.4ms, 36 PlacesBefore, 36 PlacesAfterwards, 30 TransitionsBefore, 30 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 72 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 29, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 29, positive: 14, positive conditional: 14, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 9, unknown conditional: 9, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 44, Positive cache size: 30, Positive conditional cache size: 30, Positive unconditional cache size: 0, Negative cache size: 14, Negative conditional cache size: 14, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 218.6ms, 43 PlacesBefore, 40 PlacesAfterwards, 29 TransitionsBefore, 28 TransitionsAfterwards, 30 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 7 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 29 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25, positive: 23, positive conditional: 23, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 7, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 5, negative conditional: 5, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25, positive: 17, positive conditional: 17, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, 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, 36 PlacesBefore, 35 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 16 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): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 77.5ms, 40 PlacesBefore, 38 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 12 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 6.8ms, 35 PlacesBefore, 32 PlacesAfterwards, 18 TransitionsBefore, 18 TransitionsAfterwards, 8 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): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 33.6ms, 30 PlacesBefore, 23 PlacesAfterwards, 12 TransitionsBefore, 11 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 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): 6, Positive cache size: 6, Positive conditional cache size: 6, 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: 0.9ms, 14 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3011.1ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 883.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 513.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 66 SDtfs, 126 SDslu, 38 SDs, 0 SdLazy, 349 SolverSat, 88 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 209.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 512.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=5, InterpolantAutomatonStates: 69, 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: 18.0ms SsaConstructionTime, 87.8ms SatisfiabilityAnalysisTime, 514.1ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 617 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...