/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 15:04:00,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 15:04:00,699 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 15:04:00,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 15:04:00,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 15:04:00,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 15:04:00,739 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 15:04:00,744 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 15:04:00,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 15:04:00,751 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 15:04:00,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 15:04:00,753 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 15:04:00,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 15:04:00,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 15:04:00,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 15:04:00,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 15:04:00,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 15:04:00,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 15:04:00,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 15:04:00,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 15:04:00,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 15:04:00,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 15:04:00,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 15:04:00,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 15:04:00,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 15:04:00,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 15:04:00,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 15:04:00,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 15:04:00,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 15:04:00,828 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 15:04:00,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 15:04:00,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 15:04:00,831 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 15:04:00,831 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 15:04:00,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 15:04:00,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 15:04:00,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 15:04:00,832 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 15:04:00,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 15:04:00,833 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 15:04:00,833 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 15:04:00,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 15:04:00,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 15:04:00,834 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 15:04:00,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 15:04:00,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 15:04:00,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 15:04:00,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 15:04:00,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 15:04:00,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 15:04:00,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 15:04:00,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 15:04:00,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 15:04:00,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 15:04:00,837 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 15:04:01,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 15:04:01,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 15:04:01,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 15:04:01,143 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 15:04:01,143 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 15:04:01,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl [2021-03-26 15:04:01,154 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/lamport.wvr.bpl' [2021-03-26 15:04:01,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 15:04:01,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 15:04:01,187 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 15:04:01,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 15:04:01,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 15:04:01,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 15:04:01,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 15:04:01,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 15:04:01,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 15:04:01,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/1) ... [2021-03-26 15:04:01,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 15:04:01,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 15:04:01,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 15:04:01,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 15:04:01,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (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 15:04:01,297 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 15:04:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 15:04:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 15:04:01,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 15:04:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 15:04:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 15:04:01,298 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 15:04:01,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 15:04:01,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 15:04:01,299 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 15:04:01,299 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 15:04:01,299 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 15:04:01,299 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 15:04:01,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 15:04:01,484 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 15:04:01,485 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:04:01 BoogieIcfgContainer [2021-03-26 15:04:01,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 15:04:01,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 15:04:01,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 15:04:01,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 15:04:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:04:01" (1/2) ... [2021-03-26 15:04:01,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32397fe7 and model type lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:04:01, skipping insertion in model container [2021-03-26 15:04:01,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:04:01" (2/2) ... [2021-03-26 15:04:01,491 INFO L111 eAbstractionObserver]: Analyzing ICFG lamport.wvr.bpl [2021-03-26 15:04:01,512 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 15:04:01,536 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 15:04:01,537 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 15:04:01,603 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-03-26 15:04:01,619 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-26 15:04:01,637 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 15:04:01,637 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 15:04:01,637 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 15:04:01,637 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 15:04:01,637 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 15:04:01,637 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 15:04:01,637 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 15:04:01,637 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 15:04:01,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 41 transitions, 106 flow [2021-03-26 15:04:01,671 INFO L129 PetriNetUnfolder]: 0/38 cut-off events. [2021-03-26 15:04:01,672 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 15:04:01,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 0/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 15:04:01,676 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 41 transitions, 106 flow [2021-03-26 15:04:01,680 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 46 places, 36 transitions, 90 flow [2021-03-26 15:04:01,681 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:01,698 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-26 15:04:01,703 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 36 transitions, 90 flow [2021-03-26 15:04:01,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 36 transitions, 90 flow [2021-03-26 15:04:01,732 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-03-26 15:04:01,732 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 15:04:01,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 36 events. 0/36 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-26 15:04:01,733 INFO L142 LiptonReduction]: Number of co-enabled transitions 412 [2021-03-26 15:04:02,120 INFO L154 LiptonReduction]: Checked pairs total: 992 [2021-03-26 15:04:02,120 INFO L156 LiptonReduction]: Total number of compositions: 12 [2021-03-26 15:04:02,122 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 442 [2021-03-26 15:04:02,132 INFO L129 PetriNetUnfolder]: 0/23 cut-off events. [2021-03-26 15:04:02,132 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 15:04:02,132 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:02,133 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:02,133 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:02,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:02,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1305402496, now seen corresponding path program 1 times [2021-03-26 15:04:02,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:02,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415016692] [2021-03-26 15:04:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:02,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:02,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:02,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:02,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:02,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:02,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:02,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:02,345 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 15:04:02,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415016692] [2021-03-26 15:04:02,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:02,347 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:02,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295171129] [2021-03-26 15:04:02,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:02,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:02,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:02,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:02,378 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 53 [2021-03-26 15:04:02,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 66 flow. Second operand has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:02,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 53 [2021-03-26 15:04:02,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:02,545 INFO L129 PetriNetUnfolder]: 15/89 cut-off events. [2021-03-26 15:04:02,546 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2021-03-26 15:04:02,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 89 events. 15/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 344 event pairs, 1 based on Foata normal form. 1/90 useless extension candidates. Maximal degree in co-relation 130. Up to 23 conditions per place. [2021-03-26 15:04:02,550 INFO L132 encePairwiseOnDemand]: 46/53 looper letters, 12 selfloop transitions, 11 changer transitions 2/42 dead transitions. [2021-03-26 15:04:02,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 42 transitions, 152 flow [2021-03-26 15:04:02,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:02,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:02,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 386 transitions. [2021-03-26 15:04:02,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8092243186582809 [2021-03-26 15:04:02,561 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 386 transitions. [2021-03-26 15:04:02,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 386 transitions. [2021-03-26 15:04:02,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:02,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 386 transitions. [2021-03-26 15:04:02,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.888888888888886) internal successors, (386), 9 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,575 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 53.0) internal successors, (530), 10 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,576 INFO L185 Difference]: Start difference. First operand has 34 places, 24 transitions, 66 flow. Second operand 9 states and 386 transitions. [2021-03-26 15:04:02,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 42 transitions, 152 flow [2021-03-26 15:04:02,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 42 transitions, 140 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-26 15:04:02,582 INFO L241 Difference]: Finished difference. Result has 40 places, 34 transitions, 119 flow [2021-03-26 15:04:02,583 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=119, PETRI_PLACES=40, PETRI_TRANSITIONS=34} [2021-03-26 15:04:02,584 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 6 predicate places. [2021-03-26 15:04:02,584 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:02,584 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-26 15:04:02,585 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 34 transitions, 119 flow [2021-03-26 15:04:02,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 119 flow [2021-03-26 15:04:02,592 INFO L129 PetriNetUnfolder]: 4/58 cut-off events. [2021-03-26 15:04:02,592 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-03-26 15:04:02,593 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 58 events. 4/58 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 164 event pairs, 0 based on Foata normal form. 0/57 useless extension candidates. Maximal degree in co-relation 88. Up to 9 conditions per place. [2021-03-26 15:04:02,594 INFO L142 LiptonReduction]: Number of co-enabled transitions 248 [2021-03-26 15:04:02,664 INFO L154 LiptonReduction]: Checked pairs total: 702 [2021-03-26 15:04:02,664 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 15:04:02,664 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 80 [2021-03-26 15:04:02,665 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 118 flow [2021-03-26 15:04:02,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 41.0) internal successors, (287), 7 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:02,666 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:02,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 15:04:02,666 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:02,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:02,667 INFO L82 PathProgramCache]: Analyzing trace with hash 620299272, now seen corresponding path program 2 times [2021-03-26 15:04:02,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:02,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664235971] [2021-03-26 15:04:02,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:02,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:02,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:02,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:02,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:02,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:02,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 15:04:02,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:02,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:02,766 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 15:04:02,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664235971] [2021-03-26 15:04:02,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:02,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:02,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79109667] [2021-03-26 15:04:02,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:02,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:02,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:02,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:02,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 55 [2021-03-26 15:04:02,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 118 flow. Second operand has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:02,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 55 [2021-03-26 15:04:02,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:02,921 INFO L129 PetriNetUnfolder]: 79/300 cut-off events. [2021-03-26 15:04:02,922 INFO L130 PetriNetUnfolder]: For 15/17 co-relation queries the response was YES. [2021-03-26 15:04:02,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 300 events. 79/300 cut-off events. For 15/17 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 1894 event pairs, 8 based on Foata normal form. 2/285 useless extension candidates. Maximal degree in co-relation 578. Up to 48 conditions per place. [2021-03-26 15:04:02,929 INFO L132 encePairwiseOnDemand]: 46/55 looper letters, 19 selfloop transitions, 17 changer transitions 0/60 dead transitions. [2021-03-26 15:04:02,929 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 60 transitions, 244 flow [2021-03-26 15:04:02,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:02,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 352 transitions. [2021-03-26 15:04:02,933 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7111111111111111 [2021-03-26 15:04:02,933 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 352 transitions. [2021-03-26 15:04:02,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 352 transitions. [2021-03-26 15:04:02,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:02,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 352 transitions. [2021-03-26 15:04:02,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.111111111111114) internal successors, (352), 9 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:02,936 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 15:04:02,936 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 15:04:02,936 INFO L185 Difference]: Start difference. First operand has 37 places, 33 transitions, 118 flow. Second operand 9 states and 352 transitions. [2021-03-26 15:04:02,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 60 transitions, 244 flow [2021-03-26 15:04:02,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 60 transitions, 242 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 15:04:02,940 INFO L241 Difference]: Finished difference. Result has 50 places, 50 transitions, 232 flow [2021-03-26 15:04:02,940 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=232, PETRI_PLACES=50, PETRI_TRANSITIONS=50} [2021-03-26 15:04:02,940 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 16 predicate places. [2021-03-26 15:04:02,941 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:02,941 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-26 15:04:02,941 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 50 transitions, 232 flow [2021-03-26 15:04:02,942 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 50 transitions, 232 flow [2021-03-26 15:04:02,963 INFO L129 PetriNetUnfolder]: 43/215 cut-off events. [2021-03-26 15:04:02,963 INFO L130 PetriNetUnfolder]: For 69/70 co-relation queries the response was YES. [2021-03-26 15:04:02,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 481 conditions, 215 events. 43/215 cut-off events. For 69/70 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1253 event pairs, 1 based on Foata normal form. 1/211 useless extension candidates. Maximal degree in co-relation 426. Up to 36 conditions per place. [2021-03-26 15:04:02,968 INFO L142 LiptonReduction]: Number of co-enabled transitions 392 [2021-03-26 15:04:03,032 INFO L154 LiptonReduction]: Checked pairs total: 406 [2021-03-26 15:04:03,033 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:03,033 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 92 [2021-03-26 15:04:03,034 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 50 transitions, 233 flow [2021-03-26 15:04:03,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,034 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:03,034 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:03,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 15:04:03,035 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:03,035 INFO L82 PathProgramCache]: Analyzing trace with hash -273826784, now seen corresponding path program 1 times [2021-03-26 15:04:03,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:03,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032293556] [2021-03-26 15:04:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:03,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:03,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:03,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:03,053 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032293556] [2021-03-26 15:04:03,053 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:03,053 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 15:04:03,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944817276] [2021-03-26 15:04:03,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 15:04:03,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:03,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 15:04:03,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 15:04:03,055 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 56 [2021-03-26 15:04:03,055 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 50 transitions, 233 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 15:04:03,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:03,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 56 [2021-03-26 15:04:03,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:03,080 INFO L129 PetriNetUnfolder]: 40/211 cut-off events. [2021-03-26 15:04:03,081 INFO L130 PetriNetUnfolder]: For 73/74 co-relation queries the response was YES. [2021-03-26 15:04:03,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 479 conditions, 211 events. 40/211 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1236 event pairs, 3 based on Foata normal form. 2/206 useless extension candidates. Maximal degree in co-relation 423. Up to 33 conditions per place. [2021-03-26 15:04:03,082 INFO L132 encePairwiseOnDemand]: 53/56 looper letters, 3 selfloop transitions, 5 changer transitions 0/49 dead transitions. [2021-03-26 15:04:03,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 49 transitions, 243 flow [2021-03-26 15:04:03,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 15:04:03,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 15:04:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2021-03-26 15:04:03,085 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8392857142857143 [2021-03-26 15:04:03,086 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 141 transitions. [2021-03-26 15:04:03,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 141 transitions. [2021-03-26 15:04:03,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:03,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 141 transitions. [2021-03-26 15:04:03,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,087 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,087 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,087 INFO L185 Difference]: Start difference. First operand has 50 places, 50 transitions, 233 flow. Second operand 3 states and 141 transitions. [2021-03-26 15:04:03,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 49 transitions, 243 flow [2021-03-26 15:04:03,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 49 transitions, 243 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 15:04:03,091 INFO L241 Difference]: Finished difference. Result has 53 places, 49 transitions, 244 flow [2021-03-26 15:04:03,091 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2021-03-26 15:04:03,091 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 19 predicate places. [2021-03-26 15:04:03,091 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:03,091 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-26 15:04:03,092 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 49 transitions, 244 flow [2021-03-26 15:04:03,092 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 244 flow [2021-03-26 15:04:03,109 INFO L129 PetriNetUnfolder]: 28/172 cut-off events. [2021-03-26 15:04:03,109 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-03-26 15:04:03,110 INFO L84 FinitePrefix]: Finished finitePrefix Result has 395 conditions, 172 events. 28/172 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 951 event pairs, 0 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 341. Up to 27 conditions per place. [2021-03-26 15:04:03,111 INFO L142 LiptonReduction]: Number of co-enabled transitions 360 [2021-03-26 15:04:03,165 INFO L154 LiptonReduction]: Checked pairs total: 365 [2021-03-26 15:04:03,165 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:03,165 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-26 15:04:03,168 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 246 flow [2021-03-26 15:04:03,168 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 15:04:03,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:03,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:03,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 15:04:03,169 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:03,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:03,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1677545982, now seen corresponding path program 2 times [2021-03-26 15:04:03,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:03,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789155936] [2021-03-26 15:04:03,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:03,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,294 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 15:04:03,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,310 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:03,311 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 15:04:03,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789155936] [2021-03-26 15:04:03,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:03,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:03,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526092075] [2021-03-26 15:04:03,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:03,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:03,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:03,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:03,313 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-26 15:04:03,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 246 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:03,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-26 15:04:03,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:03,528 INFO L129 PetriNetUnfolder]: 116/462 cut-off events. [2021-03-26 15:04:03,528 INFO L130 PetriNetUnfolder]: For 448/518 co-relation queries the response was YES. [2021-03-26 15:04:03,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1293 conditions, 462 events. 116/462 cut-off events. For 448/518 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3411 event pairs, 7 based on Foata normal form. 21/472 useless extension candidates. Maximal degree in co-relation 1211. Up to 78 conditions per place. [2021-03-26 15:04:03,531 INFO L132 encePairwiseOnDemand]: 48/57 looper letters, 40 selfloop transitions, 21 changer transitions 0/85 dead transitions. [2021-03-26 15:04:03,532 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 85 transitions, 572 flow [2021-03-26 15:04:03,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:03,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-26 15:04:03,533 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6939571150097466 [2021-03-26 15:04:03,533 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-26 15:04:03,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-26 15:04:03,534 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:03,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-26 15:04:03,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,539 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,539 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 246 flow. Second operand 9 states and 356 transitions. [2021-03-26 15:04:03,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 85 transitions, 572 flow [2021-03-26 15:04:03,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 85 transitions, 554 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 15:04:03,546 INFO L241 Difference]: Finished difference. Result has 65 places, 64 transitions, 412 flow [2021-03-26 15:04:03,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=412, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2021-03-26 15:04:03,547 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 31 predicate places. [2021-03-26 15:04:03,547 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:03,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 64 transitions, 412 flow [2021-03-26 15:04:03,548 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 64 transitions, 412 flow [2021-03-26 15:04:03,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 64 transitions, 412 flow [2021-03-26 15:04:03,575 INFO L129 PetriNetUnfolder]: 69/333 cut-off events. [2021-03-26 15:04:03,575 INFO L130 PetriNetUnfolder]: For 358/372 co-relation queries the response was YES. [2021-03-26 15:04:03,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 935 conditions, 333 events. 69/333 cut-off events. For 358/372 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2279 event pairs, 0 based on Foata normal form. 1/324 useless extension candidates. Maximal degree in co-relation 853. Up to 59 conditions per place. [2021-03-26 15:04:03,579 INFO L142 LiptonReduction]: Number of co-enabled transitions 484 [2021-03-26 15:04:03,607 INFO L154 LiptonReduction]: Checked pairs total: 182 [2021-03-26 15:04:03,607 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:03,607 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 60 [2021-03-26 15:04:03,611 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 412 flow [2021-03-26 15:04:03,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,611 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:03,612 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 15:04:03,612 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 15:04:03,612 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:03,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:03,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1997697432, now seen corresponding path program 1 times [2021-03-26 15:04:03,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:03,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046586163] [2021-03-26 15:04:03,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:03,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,658 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:03,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:03,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:03,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046586163] [2021-03-26 15:04:03,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:03,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:03,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016918707] [2021-03-26 15:04:03,718 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:03,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:03,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:03,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:03,723 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-26 15:04:03,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 412 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:03,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-26 15:04:03,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:03,929 INFO L129 PetriNetUnfolder]: 133/523 cut-off events. [2021-03-26 15:04:03,929 INFO L130 PetriNetUnfolder]: For 1127/1280 co-relation queries the response was YES. [2021-03-26 15:04:03,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1724 conditions, 523 events. 133/523 cut-off events. For 1127/1280 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 3942 event pairs, 19 based on Foata normal form. 36/541 useless extension candidates. Maximal degree in co-relation 1626. Up to 88 conditions per place. [2021-03-26 15:04:03,935 INFO L132 encePairwiseOnDemand]: 47/57 looper letters, 39 selfloop transitions, 24 changer transitions 0/87 dead transitions. [2021-03-26 15:04:03,935 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 87 transitions, 709 flow [2021-03-26 15:04:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 355 transitions. [2021-03-26 15:04:03,937 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6920077972709552 [2021-03-26 15:04:03,937 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 355 transitions. [2021-03-26 15:04:03,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 355 transitions. [2021-03-26 15:04:03,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:03,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 355 transitions. [2021-03-26 15:04:03,939 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.44444444444444) internal successors, (355), 9 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,940 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:03,940 INFO L185 Difference]: Start difference. First operand has 65 places, 64 transitions, 412 flow. Second operand 9 states and 355 transitions. [2021-03-26 15:04:03,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 87 transitions, 709 flow [2021-03-26 15:04:03,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 87 transitions, 697 flow, removed 6 selfloop flow, removed 0 redundant places. [2021-03-26 15:04:03,949 INFO L241 Difference]: Finished difference. Result has 77 places, 75 transitions, 585 flow [2021-03-26 15:04:03,950 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=585, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2021-03-26 15:04:03,950 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 43 predicate places. [2021-03-26 15:04:03,950 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:03,950 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 75 transitions, 585 flow [2021-03-26 15:04:03,950 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 75 transitions, 585 flow [2021-03-26 15:04:03,951 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 75 transitions, 585 flow [2021-03-26 15:04:03,980 INFO L129 PetriNetUnfolder]: 83/386 cut-off events. [2021-03-26 15:04:03,980 INFO L130 PetriNetUnfolder]: For 663/694 co-relation queries the response was YES. [2021-03-26 15:04:03,981 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1204 conditions, 386 events. 83/386 cut-off events. For 663/694 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 2734 event pairs, 0 based on Foata normal form. 5/380 useless extension candidates. Maximal degree in co-relation 1112. Up to 67 conditions per place. [2021-03-26 15:04:03,985 INFO L142 LiptonReduction]: Number of co-enabled transitions 572 [2021-03-26 15:04:04,004 INFO L154 LiptonReduction]: Checked pairs total: 248 [2021-03-26 15:04:04,005 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:04,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 55 [2021-03-26 15:04:04,012 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 585 flow [2021-03-26 15:04:04,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:04,014 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 15:04:04,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 15:04:04,014 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:04,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1757481222, now seen corresponding path program 2 times [2021-03-26 15:04:04,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:04,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529044165] [2021-03-26 15:04:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:04,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:04,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,085 INFO L142 QuantifierPusher]: treesize reduction 1, result has 87.5 percent of original size [2021-03-26 15:04:04,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:04,096 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 15:04:04,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529044165] [2021-03-26 15:04:04,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:04,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:04,097 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818904142] [2021-03-26 15:04:04,097 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:04,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:04,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:04,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:04,099 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 57 [2021-03-26 15:04:04,099 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 75 transitions, 585 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,099 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:04,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 57 [2021-03-26 15:04:04,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:04,276 INFO L129 PetriNetUnfolder]: 116/497 cut-off events. [2021-03-26 15:04:04,276 INFO L130 PetriNetUnfolder]: For 1469/1623 co-relation queries the response was YES. [2021-03-26 15:04:04,278 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 497 events. 116/497 cut-off events. For 1469/1623 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3782 event pairs, 20 based on Foata normal form. 40/518 useless extension candidates. Maximal degree in co-relation 1649. Up to 81 conditions per place. [2021-03-26 15:04:04,280 INFO L132 encePairwiseOnDemand]: 47/57 looper letters, 39 selfloop transitions, 22 changer transitions 0/85 dead transitions. [2021-03-26 15:04:04,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 85 transitions, 767 flow [2021-03-26 15:04:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:04,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 354 transitions. [2021-03-26 15:04:04,282 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6900584795321637 [2021-03-26 15:04:04,282 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 354 transitions. [2021-03-26 15:04:04,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 354 transitions. [2021-03-26 15:04:04,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:04,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 354 transitions. [2021-03-26 15:04:04,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,285 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 57.0) internal successors, (570), 10 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,285 INFO L185 Difference]: Start difference. First operand has 77 places, 75 transitions, 585 flow. Second operand 9 states and 354 transitions. [2021-03-26 15:04:04,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 85 transitions, 767 flow [2021-03-26 15:04:04,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 85 transitions, 744 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-26 15:04:04,294 INFO L241 Difference]: Finished difference. Result has 85 places, 74 transitions, 607 flow [2021-03-26 15:04:04,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=607, PETRI_PLACES=85, PETRI_TRANSITIONS=74} [2021-03-26 15:04:04,294 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2021-03-26 15:04:04,295 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:04,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 74 transitions, 607 flow [2021-03-26 15:04:04,295 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 74 transitions, 607 flow [2021-03-26 15:04:04,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 85 places, 74 transitions, 607 flow [2021-03-26 15:04:04,321 INFO L129 PetriNetUnfolder]: 71/364 cut-off events. [2021-03-26 15:04:04,321 INFO L130 PetriNetUnfolder]: For 706/722 co-relation queries the response was YES. [2021-03-26 15:04:04,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 364 events. 71/364 cut-off events. For 706/722 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2613 event pairs, 0 based on Foata normal form. 2/357 useless extension candidates. Maximal degree in co-relation 1039. Up to 60 conditions per place. [2021-03-26 15:04:04,325 INFO L142 LiptonReduction]: Number of co-enabled transitions 546 [2021-03-26 15:04:04,344 INFO L154 LiptonReduction]: Checked pairs total: 283 [2021-03-26 15:04:04,344 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:04,344 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-26 15:04:04,345 INFO L480 AbstractCegarLoop]: Abstraction has has 85 places, 74 transitions, 607 flow [2021-03-26 15:04:04,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:04,345 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 15:04:04,345 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 15:04:04,345 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:04,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:04,346 INFO L82 PathProgramCache]: Analyzing trace with hash -622253900, now seen corresponding path program 3 times [2021-03-26 15:04:04,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:04,346 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156333658] [2021-03-26 15:04:04,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:04,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:04,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:04,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:04,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:04,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156333658] [2021-03-26 15:04:04,377 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:04,377 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 15:04:04,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153562159] [2021-03-26 15:04:04,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 15:04:04,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:04,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 15:04:04,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 15:04:04,379 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 57 [2021-03-26 15:04:04,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 74 transitions, 607 flow. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:04,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 57 [2021-03-26 15:04:04,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:04,422 INFO L129 PetriNetUnfolder]: 74/386 cut-off events. [2021-03-26 15:04:04,422 INFO L130 PetriNetUnfolder]: For 684/704 co-relation queries the response was YES. [2021-03-26 15:04:04,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1183 conditions, 386 events. 74/386 cut-off events. For 684/704 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2770 event pairs, 5 based on Foata normal form. 4/383 useless extension candidates. Maximal degree in co-relation 1082. Up to 62 conditions per place. [2021-03-26 15:04:04,426 INFO L132 encePairwiseOnDemand]: 54/57 looper letters, 2 selfloop transitions, 10 changer transitions 0/73 dead transitions. [2021-03-26 15:04:04,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 73 transitions, 619 flow [2021-03-26 15:04:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 15:04:04,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 15:04:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2021-03-26 15:04:04,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8713450292397661 [2021-03-26 15:04:04,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 149 transitions. [2021-03-26 15:04:04,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 149 transitions. [2021-03-26 15:04:04,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:04,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 149 transitions. [2021-03-26 15:04:04,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 57.0) internal successors, (228), 4 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,429 INFO L185 Difference]: Start difference. First operand has 85 places, 74 transitions, 607 flow. Second operand 3 states and 149 transitions. [2021-03-26 15:04:04,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 73 transitions, 619 flow [2021-03-26 15:04:04,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 73 transitions, 580 flow, removed 1 selfloop flow, removed 6 redundant places. [2021-03-26 15:04:04,436 INFO L241 Difference]: Finished difference. Result has 82 places, 73 transitions, 588 flow [2021-03-26 15:04:04,437 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=588, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2021-03-26 15:04:04,437 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 48 predicate places. [2021-03-26 15:04:04,437 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:04,437 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 73 transitions, 588 flow [2021-03-26 15:04:04,438 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 73 transitions, 588 flow [2021-03-26 15:04:04,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 73 transitions, 588 flow [2021-03-26 15:04:04,465 INFO L129 PetriNetUnfolder]: 56/333 cut-off events. [2021-03-26 15:04:04,465 INFO L130 PetriNetUnfolder]: For 462/474 co-relation queries the response was YES. [2021-03-26 15:04:04,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 333 events. 56/333 cut-off events. For 462/474 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2312 event pairs, 1 based on Foata normal form. 1/326 useless extension candidates. Maximal degree in co-relation 870. Up to 51 conditions per place. [2021-03-26 15:04:04,469 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 15:04:04,617 INFO L154 LiptonReduction]: Checked pairs total: 312 [2021-03-26 15:04:04,617 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 15:04:04,617 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-26 15:04:04,618 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 603 flow [2021-03-26 15:04:04,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,619 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:04,619 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 15:04:04,620 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 15:04:04,620 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:04,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:04,620 INFO L82 PathProgramCache]: Analyzing trace with hash -128345966, now seen corresponding path program 4 times [2021-03-26 15:04:04,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:04,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273836598] [2021-03-26 15:04:04,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:04,659 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,698 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 15:04:04,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 15:04:04,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:04,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273836598] [2021-03-26 15:04:04,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:04,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:04,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276333065] [2021-03-26 15:04:04,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:04,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:04,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:04,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:04,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 61 [2021-03-26 15:04:04,713 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 73 transitions, 603 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:04,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 61 [2021-03-26 15:04:04,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:04,897 INFO L129 PetriNetUnfolder]: 98/459 cut-off events. [2021-03-26 15:04:04,897 INFO L130 PetriNetUnfolder]: For 1131/1208 co-relation queries the response was YES. [2021-03-26 15:04:04,899 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1569 conditions, 459 events. 98/459 cut-off events. For 1131/1208 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3374 event pairs, 16 based on Foata normal form. 28/477 useless extension candidates. Maximal degree in co-relation 1456. Up to 69 conditions per place. [2021-03-26 15:04:04,901 INFO L132 encePairwiseOnDemand]: 48/61 looper letters, 36 selfloop transitions, 25 changer transitions 0/85 dead transitions. [2021-03-26 15:04:04,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 85 transitions, 806 flow [2021-03-26 15:04:04,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:04,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 356 transitions. [2021-03-26 15:04:04,903 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6484517304189436 [2021-03-26 15:04:04,903 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 356 transitions. [2021-03-26 15:04:04,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 356 transitions. [2021-03-26 15:04:04,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:04,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 356 transitions. [2021-03-26 15:04:04,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.55555555555556) internal successors, (356), 9 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,906 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,906 INFO L185 Difference]: Start difference. First operand has 82 places, 73 transitions, 603 flow. Second operand 9 states and 356 transitions. [2021-03-26 15:04:04,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 85 transitions, 806 flow [2021-03-26 15:04:04,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 85 transitions, 776 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-03-26 15:04:04,916 INFO L241 Difference]: Finished difference. Result has 88 places, 76 transitions, 667 flow [2021-03-26 15:04:04,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=667, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2021-03-26 15:04:04,917 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 54 predicate places. [2021-03-26 15:04:04,917 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:04,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 76 transitions, 667 flow [2021-03-26 15:04:04,917 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 76 transitions, 667 flow [2021-03-26 15:04:04,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 76 transitions, 667 flow [2021-03-26 15:04:04,943 INFO L129 PetriNetUnfolder]: 58/336 cut-off events. [2021-03-26 15:04:04,943 INFO L130 PetriNetUnfolder]: For 626/645 co-relation queries the response was YES. [2021-03-26 15:04:04,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 336 events. 58/336 cut-off events. For 626/645 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2382 event pairs, 1 based on Foata normal form. 6/337 useless extension candidates. Maximal degree in co-relation 966. Up to 51 conditions per place. [2021-03-26 15:04:04,947 INFO L142 LiptonReduction]: Number of co-enabled transitions 500 [2021-03-26 15:04:04,957 INFO L154 LiptonReduction]: Checked pairs total: 68 [2021-03-26 15:04:04,958 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:04,958 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 15:04:04,958 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 667 flow [2021-03-26 15:04:04,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:04,959 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:04,959 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:04,959 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 15:04:04,959 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:04,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:04,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1645157016, now seen corresponding path program 1 times [2021-03-26 15:04:04,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:04,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612750588] [2021-03-26 15:04:04,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:04,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:05,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:05,025 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 15:04:05,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612750588] [2021-03-26 15:04:05,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:05,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:05,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776523106] [2021-03-26 15:04:05,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:05,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:05,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:05,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:05,027 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 61 [2021-03-26 15:04:05,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 76 transitions, 667 flow. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,027 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:05,027 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 61 [2021-03-26 15:04:05,027 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:05,223 INFO L129 PetriNetUnfolder]: 84/430 cut-off events. [2021-03-26 15:04:05,223 INFO L130 PetriNetUnfolder]: For 1349/1439 co-relation queries the response was YES. [2021-03-26 15:04:05,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 430 events. 84/430 cut-off events. For 1349/1439 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 3146 event pairs, 7 based on Foata normal form. 8/433 useless extension candidates. Maximal degree in co-relation 1417. Up to 64 conditions per place. [2021-03-26 15:04:05,227 INFO L132 encePairwiseOnDemand]: 51/61 looper letters, 38 selfloop transitions, 23 changer transitions 0/85 dead transitions. [2021-03-26 15:04:05,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 85 transitions, 865 flow [2021-03-26 15:04:05,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:05,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 354 transitions. [2021-03-26 15:04:05,229 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.644808743169399 [2021-03-26 15:04:05,229 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 354 transitions. [2021-03-26 15:04:05,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 354 transitions. [2021-03-26 15:04:05,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:05,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 354 transitions. [2021-03-26 15:04:05,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 39.333333333333336) internal successors, (354), 9 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,232 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 61.0) internal successors, (610), 10 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,232 INFO L185 Difference]: Start difference. First operand has 88 places, 76 transitions, 667 flow. Second operand 9 states and 354 transitions. [2021-03-26 15:04:05,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 85 transitions, 865 flow [2021-03-26 15:04:05,241 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 85 transitions, 811 flow, removed 12 selfloop flow, removed 5 redundant places. [2021-03-26 15:04:05,243 INFO L241 Difference]: Finished difference. Result has 93 places, 75 transitions, 674 flow [2021-03-26 15:04:05,243 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=61, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=674, PETRI_PLACES=93, PETRI_TRANSITIONS=75} [2021-03-26 15:04:05,243 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 59 predicate places. [2021-03-26 15:04:05,243 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:05,243 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 75 transitions, 674 flow [2021-03-26 15:04:05,243 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 75 transitions, 674 flow [2021-03-26 15:04:05,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 75 transitions, 674 flow [2021-03-26 15:04:05,272 INFO L129 PetriNetUnfolder]: 46/313 cut-off events. [2021-03-26 15:04:05,273 INFO L130 PetriNetUnfolder]: For 602/611 co-relation queries the response was YES. [2021-03-26 15:04:05,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 313 events. 46/313 cut-off events. For 602/611 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2259 event pairs, 1 based on Foata normal form. 6/315 useless extension candidates. Maximal degree in co-relation 883. Up to 45 conditions per place. [2021-03-26 15:04:05,277 INFO L142 LiptonReduction]: Number of co-enabled transitions 476 [2021-03-26 15:04:05,334 INFO L154 LiptonReduction]: Checked pairs total: 153 [2021-03-26 15:04:05,334 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:05,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-26 15:04:05,335 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 75 transitions, 688 flow [2021-03-26 15:04:05,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 8 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:05,335 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 15:04:05,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 15:04:05,335 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:05,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:05,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1538447959, now seen corresponding path program 1 times [2021-03-26 15:04:05,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:05,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029290860] [2021-03-26 15:04:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:05,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:05,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:05,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:05,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:05,390 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:05,397 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:05,398 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 15:04:05,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029290860] [2021-03-26 15:04:05,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:05,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:05,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725833944] [2021-03-26 15:04:05,399 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:05,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:05,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:05,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:05,400 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 62 [2021-03-26 15:04:05,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 75 transitions, 688 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:05,402 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 62 [2021-03-26 15:04:05,402 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:05,554 INFO L129 PetriNetUnfolder]: 109/566 cut-off events. [2021-03-26 15:04:05,554 INFO L130 PetriNetUnfolder]: For 1102/1131 co-relation queries the response was YES. [2021-03-26 15:04:05,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1877 conditions, 566 events. 109/566 cut-off events. For 1102/1131 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 4540 event pairs, 4 based on Foata normal form. 26/583 useless extension candidates. Maximal degree in co-relation 1700. Up to 122 conditions per place. [2021-03-26 15:04:05,558 INFO L132 encePairwiseOnDemand]: 55/62 looper letters, 21 selfloop transitions, 11 changer transitions 2/92 dead transitions. [2021-03-26 15:04:05,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 92 transitions, 824 flow [2021-03-26 15:04:05,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:05,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:05,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 452 transitions. [2021-03-26 15:04:05,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8100358422939068 [2021-03-26 15:04:05,560 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 452 transitions. [2021-03-26 15:04:05,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 452 transitions. [2021-03-26 15:04:05,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:05,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 452 transitions. [2021-03-26 15:04:05,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.22222222222222) internal successors, (452), 9 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,563 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 62.0) internal successors, (620), 10 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,563 INFO L185 Difference]: Start difference. First operand has 93 places, 75 transitions, 688 flow. Second operand 9 states and 452 transitions. [2021-03-26 15:04:05,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 92 transitions, 824 flow [2021-03-26 15:04:05,570 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 92 transitions, 774 flow, removed 2 selfloop flow, removed 8 redundant places. [2021-03-26 15:04:05,571 INFO L241 Difference]: Finished difference. Result has 99 places, 81 transitions, 716 flow [2021-03-26 15:04:05,572 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=716, PETRI_PLACES=99, PETRI_TRANSITIONS=81} [2021-03-26 15:04:05,572 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 65 predicate places. [2021-03-26 15:04:05,572 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:05,573 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 81 transitions, 716 flow [2021-03-26 15:04:05,573 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 81 transitions, 716 flow [2021-03-26 15:04:05,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 81 transitions, 716 flow [2021-03-26 15:04:05,607 INFO L129 PetriNetUnfolder]: 51/377 cut-off events. [2021-03-26 15:04:05,607 INFO L130 PetriNetUnfolder]: For 716/736 co-relation queries the response was YES. [2021-03-26 15:04:05,608 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1272 conditions, 377 events. 51/377 cut-off events. For 716/736 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2901 event pairs, 1 based on Foata normal form. 13/381 useless extension candidates. Maximal degree in co-relation 1204. Up to 63 conditions per place. [2021-03-26 15:04:05,612 INFO L142 LiptonReduction]: Number of co-enabled transitions 526 [2021-03-26 15:04:05,704 INFO L154 LiptonReduction]: Checked pairs total: 126 [2021-03-26 15:04:05,704 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 15:04:05,704 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 132 [2021-03-26 15:04:05,705 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 81 transitions, 727 flow [2021-03-26 15:04:05,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:05,705 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 15:04:05,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 15:04:05,705 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:05,706 INFO L82 PathProgramCache]: Analyzing trace with hash 883272795, now seen corresponding path program 1 times [2021-03-26 15:04:05,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:05,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790698543] [2021-03-26 15:04:05,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:05,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:05,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:05,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:05,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:05,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:05,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:05,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:05,762 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 15:04:05,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790698543] [2021-03-26 15:04:05,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:05,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:05,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261910215] [2021-03-26 15:04:05,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:05,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:05,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:05,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:05,764 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 65 [2021-03-26 15:04:05,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 81 transitions, 727 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:05,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 65 [2021-03-26 15:04:05,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:05,945 INFO L129 PetriNetUnfolder]: 118/733 cut-off events. [2021-03-26 15:04:05,945 INFO L130 PetriNetUnfolder]: For 1678/1727 co-relation queries the response was YES. [2021-03-26 15:04:05,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2625 conditions, 733 events. 118/733 cut-off events. For 1678/1727 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6585 event pairs, 13 based on Foata normal form. 47/759 useless extension candidates. Maximal degree in co-relation 2503. Up to 168 conditions per place. [2021-03-26 15:04:05,951 INFO L132 encePairwiseOnDemand]: 54/65 looper letters, 19 selfloop transitions, 19 changer transitions 4/98 dead transitions. [2021-03-26 15:04:05,951 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 98 transitions, 934 flow [2021-03-26 15:04:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 15:04:05,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 15:04:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 504 transitions. [2021-03-26 15:04:05,953 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7753846153846153 [2021-03-26 15:04:05,953 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 504 transitions. [2021-03-26 15:04:05,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 504 transitions. [2021-03-26 15:04:05,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:05,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 504 transitions. [2021-03-26 15:04:05,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 50.4) internal successors, (504), 10 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,956 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 65.0) internal successors, (715), 11 states have internal predecessors, (715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:05,956 INFO L185 Difference]: Start difference. First operand has 97 places, 81 transitions, 727 flow. Second operand 10 states and 504 transitions. [2021-03-26 15:04:05,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 98 transitions, 934 flow [2021-03-26 15:04:05,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 907 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 15:04:05,967 INFO L241 Difference]: Finished difference. Result has 108 places, 90 transitions, 837 flow [2021-03-26 15:04:05,968 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=65, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=837, PETRI_PLACES=108, PETRI_TRANSITIONS=90} [2021-03-26 15:04:05,968 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 74 predicate places. [2021-03-26 15:04:05,968 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:05,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-26 15:04:05,968 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 90 transitions, 837 flow [2021-03-26 15:04:05,969 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 90 transitions, 837 flow [2021-03-26 15:04:06,032 INFO L129 PetriNetUnfolder]: 66/564 cut-off events. [2021-03-26 15:04:06,032 INFO L130 PetriNetUnfolder]: For 1301/1324 co-relation queries the response was YES. [2021-03-26 15:04:06,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1948 conditions, 564 events. 66/564 cut-off events. For 1301/1324 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4926 event pairs, 1 based on Foata normal form. 18/573 useless extension candidates. Maximal degree in co-relation 1852. Up to 87 conditions per place. [2021-03-26 15:04:06,038 INFO L142 LiptonReduction]: Number of co-enabled transitions 562 [2021-03-26 15:04:06,073 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 15:04:06,074 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 15:04:06,074 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 106 [2021-03-26 15:04:06,076 INFO L480 AbstractCegarLoop]: Abstraction has has 106 places, 90 transitions, 847 flow [2021-03-26 15:04:06,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,076 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:06,076 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:06,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 15:04:06,077 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:06,077 INFO L82 PathProgramCache]: Analyzing trace with hash -224035157, now seen corresponding path program 1 times [2021-03-26 15:04:06,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:06,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012766527] [2021-03-26 15:04:06,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:06,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,119 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 15:04:06,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012766527] [2021-03-26 15:04:06,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:06,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:04:06,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872579291] [2021-03-26 15:04:06,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:04:06,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:06,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:04:06,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:04:06,121 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 67 [2021-03-26 15:04:06,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 90 transitions, 847 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:06,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 67 [2021-03-26 15:04:06,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:06,266 INFO L129 PetriNetUnfolder]: 109/761 cut-off events. [2021-03-26 15:04:06,266 INFO L130 PetriNetUnfolder]: For 2189/2305 co-relation queries the response was YES. [2021-03-26 15:04:06,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2867 conditions, 761 events. 109/761 cut-off events. For 2189/2305 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 7193 event pairs, 7 based on Foata normal form. 71/813 useless extension candidates. Maximal degree in co-relation 2729. Up to 235 conditions per place. [2021-03-26 15:04:06,272 INFO L132 encePairwiseOnDemand]: 61/67 looper letters, 30 selfloop transitions, 13 changer transitions 0/99 dead transitions. [2021-03-26 15:04:06,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 99 transitions, 989 flow [2021-03-26 15:04:06,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 15:04:06,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 15:04:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 402 transitions. [2021-03-26 15:04:06,274 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.75 [2021-03-26 15:04:06,274 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 402 transitions. [2021-03-26 15:04:06,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 402 transitions. [2021-03-26 15:04:06,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:06,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 402 transitions. [2021-03-26 15:04:06,276 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.25) internal successors, (402), 8 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,277 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 67.0) internal successors, (603), 9 states have internal predecessors, (603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,277 INFO L185 Difference]: Start difference. First operand has 106 places, 90 transitions, 847 flow. Second operand 8 states and 402 transitions. [2021-03-26 15:04:06,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 99 transitions, 989 flow [2021-03-26 15:04:06,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 99 transitions, 957 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-03-26 15:04:06,293 INFO L241 Difference]: Finished difference. Result has 111 places, 97 transitions, 900 flow [2021-03-26 15:04:06,294 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=900, PETRI_PLACES=111, PETRI_TRANSITIONS=97} [2021-03-26 15:04:06,294 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 77 predicate places. [2021-03-26 15:04:06,294 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:06,295 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 97 transitions, 900 flow [2021-03-26 15:04:06,295 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 97 transitions, 900 flow [2021-03-26 15:04:06,296 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 97 transitions, 900 flow [2021-03-26 15:04:06,346 INFO L129 PetriNetUnfolder]: 77/650 cut-off events. [2021-03-26 15:04:06,347 INFO L130 PetriNetUnfolder]: For 1577/1598 co-relation queries the response was YES. [2021-03-26 15:04:06,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 650 events. 77/650 cut-off events. For 1577/1598 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6080 event pairs, 4 based on Foata normal form. 17/658 useless extension candidates. Maximal degree in co-relation 2081. Up to 93 conditions per place. [2021-03-26 15:04:06,354 INFO L142 LiptonReduction]: Number of co-enabled transitions 620 [2021-03-26 15:04:06,378 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 15:04:06,378 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:06,378 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84 [2021-03-26 15:04:06,379 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 97 transitions, 905 flow [2021-03-26 15:04:06,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:06,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:06,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 15:04:06,380 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:06,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:06,380 INFO L82 PathProgramCache]: Analyzing trace with hash -334866641, now seen corresponding path program 2 times [2021-03-26 15:04:06,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:06,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770526274] [2021-03-26 15:04:06,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:06,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:06,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,424 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 15:04:06,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770526274] [2021-03-26 15:04:06,424 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:06,424 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 15:04:06,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168786687] [2021-03-26 15:04:06,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:04:06,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:06,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:04:06,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:04:06,426 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 68 [2021-03-26 15:04:06,426 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 97 transitions, 905 flow. Second operand has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,426 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:06,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 68 [2021-03-26 15:04:06,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:06,567 INFO L129 PetriNetUnfolder]: 107/781 cut-off events. [2021-03-26 15:04:06,567 INFO L130 PetriNetUnfolder]: For 2275/2431 co-relation queries the response was YES. [2021-03-26 15:04:06,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2946 conditions, 781 events. 107/781 cut-off events. For 2275/2431 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7504 event pairs, 7 based on Foata normal form. 96/858 useless extension candidates. Maximal degree in co-relation 2727. Up to 239 conditions per place. [2021-03-26 15:04:06,573 INFO L132 encePairwiseOnDemand]: 61/68 looper letters, 29 selfloop transitions, 14 changer transitions 0/99 dead transitions. [2021-03-26 15:04:06,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 99 transitions, 1009 flow [2021-03-26 15:04:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:04:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:04:06,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 354 transitions. [2021-03-26 15:04:06,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7436974789915967 [2021-03-26 15:04:06,576 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 354 transitions. [2021-03-26 15:04:06,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 354 transitions. [2021-03-26 15:04:06,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:06,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 354 transitions. [2021-03-26 15:04:06,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 50.57142857142857) internal successors, (354), 7 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,579 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,579 INFO L185 Difference]: Start difference. First operand has 111 places, 97 transitions, 905 flow. Second operand 7 states and 354 transitions. [2021-03-26 15:04:06,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 99 transitions, 1009 flow [2021-03-26 15:04:06,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 99 transitions, 981 flow, removed 11 selfloop flow, removed 1 redundant places. [2021-03-26 15:04:06,594 INFO L241 Difference]: Finished difference. Result has 118 places, 99 transitions, 933 flow [2021-03-26 15:04:06,595 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=68, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=933, PETRI_PLACES=118, PETRI_TRANSITIONS=99} [2021-03-26 15:04:06,595 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 84 predicate places. [2021-03-26 15:04:06,595 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:06,595 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 99 transitions, 933 flow [2021-03-26 15:04:06,596 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 99 transitions, 933 flow [2021-03-26 15:04:06,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 99 transitions, 933 flow [2021-03-26 15:04:06,651 INFO L129 PetriNetUnfolder]: 75/658 cut-off events. [2021-03-26 15:04:06,651 INFO L130 PetriNetUnfolder]: For 1679/1704 co-relation queries the response was YES. [2021-03-26 15:04:06,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2381 conditions, 658 events. 75/658 cut-off events. For 1679/1704 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 6226 event pairs, 1 based on Foata normal form. 21/670 useless extension candidates. Maximal degree in co-relation 2166. Up to 96 conditions per place. [2021-03-26 15:04:06,660 INFO L142 LiptonReduction]: Number of co-enabled transitions 626 [2021-03-26 15:04:06,685 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 15:04:06,685 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:06,686 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 91 [2021-03-26 15:04:06,686 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 98 transitions, 927 flow [2021-03-26 15:04:06,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 48.0) internal successors, (288), 6 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:06,686 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 15:04:06,687 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 15:04:06,687 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:06,687 INFO L82 PathProgramCache]: Analyzing trace with hash 162033296, now seen corresponding path program 1 times [2021-03-26 15:04:06,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:06,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858803738] [2021-03-26 15:04:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:06,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:06,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:06,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:06,717 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858803738] [2021-03-26 15:04:06,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:06,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 15:04:06,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608784655] [2021-03-26 15:04:06,717 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 15:04:06,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:06,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 15:04:06,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-26 15:04:06,718 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-26 15:04:06,719 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 98 transitions, 927 flow. Second operand has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,719 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:06,719 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-26 15:04:06,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:06,867 INFO L129 PetriNetUnfolder]: 107/771 cut-off events. [2021-03-26 15:04:06,867 INFO L130 PetriNetUnfolder]: For 2428/2600 co-relation queries the response was YES. [2021-03-26 15:04:06,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2985 conditions, 771 events. 107/771 cut-off events. For 2428/2600 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 7380 event pairs, 7 based on Foata normal form. 99/851 useless extension candidates. Maximal degree in co-relation 2747. Up to 243 conditions per place. [2021-03-26 15:04:06,873 INFO L132 encePairwiseOnDemand]: 63/69 looper letters, 28 selfloop transitions, 8 changer transitions 13/98 dead transitions. [2021-03-26 15:04:06,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 98 transitions, 1011 flow [2021-03-26 15:04:06,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 15:04:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 15:04:06,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 259 transitions. [2021-03-26 15:04:06,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7507246376811594 [2021-03-26 15:04:06,874 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 259 transitions. [2021-03-26 15:04:06,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 259 transitions. [2021-03-26 15:04:06,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:06,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 259 transitions. [2021-03-26 15:04:06,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 51.8) internal successors, (259), 5 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,877 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 69.0) internal successors, (414), 6 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,878 INFO L185 Difference]: Start difference. First operand has 117 places, 98 transitions, 927 flow. Second operand 5 states and 259 transitions. [2021-03-26 15:04:06,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 98 transitions, 1011 flow [2021-03-26 15:04:06,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 98 transitions, 977 flow, removed 7 selfloop flow, removed 3 redundant places. [2021-03-26 15:04:06,893 INFO L241 Difference]: Finished difference. Result has 119 places, 85 transitions, 779 flow [2021-03-26 15:04:06,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=893, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=779, PETRI_PLACES=119, PETRI_TRANSITIONS=85} [2021-03-26 15:04:06,894 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 85 predicate places. [2021-03-26 15:04:06,894 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:06,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 85 transitions, 779 flow [2021-03-26 15:04:06,894 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 85 transitions, 779 flow [2021-03-26 15:04:06,895 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 85 transitions, 779 flow [2021-03-26 15:04:06,933 INFO L129 PetriNetUnfolder]: 57/522 cut-off events. [2021-03-26 15:04:06,933 INFO L130 PetriNetUnfolder]: For 1267/1284 co-relation queries the response was YES. [2021-03-26 15:04:06,935 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1919 conditions, 522 events. 57/522 cut-off events. For 1267/1284 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4576 event pairs, 1 based on Foata normal form. 16/528 useless extension candidates. Maximal degree in co-relation 1817. Up to 79 conditions per place. [2021-03-26 15:04:06,939 INFO L142 LiptonReduction]: Number of co-enabled transitions 524 [2021-03-26 15:04:06,943 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:04:06,943 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:06,943 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49 [2021-03-26 15:04:06,944 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 85 transitions, 779 flow [2021-03-26 15:04:06,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 48.0) internal successors, (240), 5 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:06,945 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:06,945 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 15:04:06,945 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:06,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:06,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1546225863, now seen corresponding path program 1 times [2021-03-26 15:04:06,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:06,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049747557] [2021-03-26 15:04:06,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:06,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:06,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:06,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:06,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:06,984 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 15:04:06,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049747557] [2021-03-26 15:04:06,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:06,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:06,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979305505] [2021-03-26 15:04:06,985 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:06,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:06,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:06,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:06,986 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-26 15:04:06,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 85 transitions, 779 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:06,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:06,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-26 15:04:06,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:07,142 INFO L129 PetriNetUnfolder]: 75/642 cut-off events. [2021-03-26 15:04:07,142 INFO L130 PetriNetUnfolder]: For 1927/2032 co-relation queries the response was YES. [2021-03-26 15:04:07,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2537 conditions, 642 events. 75/642 cut-off events. For 1927/2032 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 5916 event pairs, 4 based on Foata normal form. 54/678 useless extension candidates. Maximal degree in co-relation 2382. Up to 94 conditions per place. [2021-03-26 15:04:07,147 INFO L132 encePairwiseOnDemand]: 59/69 looper letters, 24 selfloop transitions, 21 changer transitions 6/100 dead transitions. [2021-03-26 15:04:07,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 100 transitions, 1019 flow [2021-03-26 15:04:07,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 457 transitions. [2021-03-26 15:04:07,150 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7359098228663447 [2021-03-26 15:04:07,150 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 457 transitions. [2021-03-26 15:04:07,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 457 transitions. [2021-03-26 15:04:07,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:07,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 457 transitions. [2021-03-26 15:04:07,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.77777777777778) internal successors, (457), 9 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,152 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,152 INFO L185 Difference]: Start difference. First operand has 111 places, 85 transitions, 779 flow. Second operand 9 states and 457 transitions. [2021-03-26 15:04:07,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 100 transitions, 1019 flow [2021-03-26 15:04:07,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 100 transitions, 948 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-03-26 15:04:07,164 INFO L241 Difference]: Finished difference. Result has 113 places, 88 transitions, 819 flow [2021-03-26 15:04:07,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=819, PETRI_PLACES=113, PETRI_TRANSITIONS=88} [2021-03-26 15:04:07,164 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 79 predicate places. [2021-03-26 15:04:07,164 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:07,165 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 88 transitions, 819 flow [2021-03-26 15:04:07,165 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 88 transitions, 819 flow [2021-03-26 15:04:07,165 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 88 transitions, 819 flow [2021-03-26 15:04:07,207 INFO L129 PetriNetUnfolder]: 50/543 cut-off events. [2021-03-26 15:04:07,207 INFO L130 PetriNetUnfolder]: For 1338/1355 co-relation queries the response was YES. [2021-03-26 15:04:07,209 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1926 conditions, 543 events. 50/543 cut-off events. For 1338/1355 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 4940 event pairs, 1 based on Foata normal form. 14/549 useless extension candidates. Maximal degree in co-relation 1825. Up to 87 conditions per place. [2021-03-26 15:04:07,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 516 [2021-03-26 15:04:07,216 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:04:07,216 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:07,216 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 15:04:07,219 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 88 transitions, 819 flow [2021-03-26 15:04:07,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,219 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:07,219 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:07,219 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 15:04:07,220 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:07,220 INFO L82 PathProgramCache]: Analyzing trace with hash 952170435, now seen corresponding path program 2 times [2021-03-26 15:04:07,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:07,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80998270] [2021-03-26 15:04:07,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:07,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:07,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,266 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 15:04:07,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80998270] [2021-03-26 15:04:07,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:07,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:07,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333768733] [2021-03-26 15:04:07,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:07,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:07,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:07,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:07,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 69 [2021-03-26 15:04:07,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 88 transitions, 819 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:07,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 69 [2021-03-26 15:04:07,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:07,420 INFO L129 PetriNetUnfolder]: 71/635 cut-off events. [2021-03-26 15:04:07,420 INFO L130 PetriNetUnfolder]: For 1804/1884 co-relation queries the response was YES. [2021-03-26 15:04:07,423 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2464 conditions, 635 events. 71/635 cut-off events. For 1804/1884 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5904 event pairs, 4 based on Foata normal form. 52/670 useless extension candidates. Maximal degree in co-relation 2331. Up to 183 conditions per place. [2021-03-26 15:04:07,426 INFO L132 encePairwiseOnDemand]: 59/69 looper letters, 26 selfloop transitions, 20 changer transitions 0/95 dead transitions. [2021-03-26 15:04:07,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 95 transitions, 968 flow [2021-03-26 15:04:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 15:04:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 15:04:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 403 transitions. [2021-03-26 15:04:07,427 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.730072463768116 [2021-03-26 15:04:07,427 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 403 transitions. [2021-03-26 15:04:07,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 403 transitions. [2021-03-26 15:04:07,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:07,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 403 transitions. [2021-03-26 15:04:07,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 50.375) internal successors, (403), 8 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,430 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,430 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 69.0) internal successors, (621), 9 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,430 INFO L185 Difference]: Start difference. First operand has 111 places, 88 transitions, 819 flow. Second operand 8 states and 403 transitions. [2021-03-26 15:04:07,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 95 transitions, 968 flow [2021-03-26 15:04:07,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 95 transitions, 890 flow, removed 17 selfloop flow, removed 10 redundant places. [2021-03-26 15:04:07,444 INFO L241 Difference]: Finished difference. Result has 110 places, 94 transitions, 854 flow [2021-03-26 15:04:07,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=749, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=854, PETRI_PLACES=110, PETRI_TRANSITIONS=94} [2021-03-26 15:04:07,445 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 76 predicate places. [2021-03-26 15:04:07,445 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:07,445 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 94 transitions, 854 flow [2021-03-26 15:04:07,445 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 94 transitions, 854 flow [2021-03-26 15:04:07,446 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 94 transitions, 854 flow [2021-03-26 15:04:07,491 INFO L129 PetriNetUnfolder]: 65/607 cut-off events. [2021-03-26 15:04:07,491 INFO L130 PetriNetUnfolder]: For 1397/1414 co-relation queries the response was YES. [2021-03-26 15:04:07,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 607 events. 65/607 cut-off events. For 1397/1414 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5692 event pairs, 1 based on Foata normal form. 16/610 useless extension candidates. Maximal degree in co-relation 1893. Up to 98 conditions per place. [2021-03-26 15:04:07,527 INFO L142 LiptonReduction]: Number of co-enabled transitions 578 [2021-03-26 15:04:07,549 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-26 15:04:07,550 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:07,550 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 105 [2021-03-26 15:04:07,550 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 94 transitions, 863 flow [2021-03-26 15:04:07,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,550 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:07,551 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:07,551 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 15:04:07,551 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:07,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:07,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1267882133, now seen corresponding path program 3 times [2021-03-26 15:04:07,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:07,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105588821] [2021-03-26 15:04:07,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:07,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,591 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 15:04:07,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105588821] [2021-03-26 15:04:07,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:07,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:07,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480826350] [2021-03-26 15:04:07,592 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:07,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:07,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:07,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:07,593 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 70 [2021-03-26 15:04:07,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 94 transitions, 863 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:07,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 70 [2021-03-26 15:04:07,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:07,766 INFO L129 PetriNetUnfolder]: 66/668 cut-off events. [2021-03-26 15:04:07,766 INFO L130 PetriNetUnfolder]: For 1820/1910 co-relation queries the response was YES. [2021-03-26 15:04:07,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2535 conditions, 668 events. 66/668 cut-off events. For 1820/1910 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6433 event pairs, 4 based on Foata normal form. 64/714 useless extension candidates. Maximal degree in co-relation 2315. Up to 159 conditions per place. [2021-03-26 15:04:07,771 INFO L132 encePairwiseOnDemand]: 59/70 looper letters, 24 selfloop transitions, 24 changer transitions 0/97 dead transitions. [2021-03-26 15:04:07,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 97 transitions, 976 flow [2021-03-26 15:04:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 15:04:07,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 15:04:07,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 453 transitions. [2021-03-26 15:04:07,773 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.719047619047619 [2021-03-26 15:04:07,773 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 453 transitions. [2021-03-26 15:04:07,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 453 transitions. [2021-03-26 15:04:07,775 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:07,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 453 transitions. [2021-03-26 15:04:07,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 50.333333333333336) internal successors, (453), 9 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,778 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 70.0) internal successors, (700), 10 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,778 INFO L185 Difference]: Start difference. First operand has 110 places, 94 transitions, 863 flow. Second operand 9 states and 453 transitions. [2021-03-26 15:04:07,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 97 transitions, 976 flow [2021-03-26 15:04:07,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 97 transitions, 922 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-03-26 15:04:07,790 INFO L241 Difference]: Finished difference. Result has 116 places, 95 transitions, 868 flow [2021-03-26 15:04:07,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=809, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=868, PETRI_PLACES=116, PETRI_TRANSITIONS=95} [2021-03-26 15:04:07,791 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 82 predicate places. [2021-03-26 15:04:07,791 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:07,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 116 places, 95 transitions, 868 flow [2021-03-26 15:04:07,791 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 116 places, 95 transitions, 868 flow [2021-03-26 15:04:07,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 116 places, 95 transitions, 868 flow [2021-03-26 15:04:07,840 INFO L129 PetriNetUnfolder]: 60/640 cut-off events. [2021-03-26 15:04:07,840 INFO L130 PetriNetUnfolder]: For 1357/1370 co-relation queries the response was YES. [2021-03-26 15:04:07,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2241 conditions, 640 events. 60/640 cut-off events. For 1357/1370 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 6219 event pairs, 1 based on Foata normal form. 12/638 useless extension candidates. Maximal degree in co-relation 2028. Up to 105 conditions per place. [2021-03-26 15:04:07,848 INFO L142 LiptonReduction]: Number of co-enabled transitions 586 [2021-03-26 15:04:07,869 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 15:04:07,870 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:07,870 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 79 [2021-03-26 15:04:07,870 INFO L480 AbstractCegarLoop]: Abstraction has has 115 places, 94 transitions, 864 flow [2021-03-26 15:04:07,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,871 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:07,871 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:07,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 15:04:07,871 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:07,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1515852507, now seen corresponding path program 4 times [2021-03-26 15:04:07,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:07,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362966821] [2021-03-26 15:04:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:07,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,895 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,903 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 15:04:07,920 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:07,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:07,921 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 15:04:07,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362966821] [2021-03-26 15:04:07,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:07,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:07,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082997825] [2021-03-26 15:04:07,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:07,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:07,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:07,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:07,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 71 [2021-03-26 15:04:07,922 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 94 transitions, 864 flow. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:07,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:07,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 71 [2021-03-26 15:04:07,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:08,080 INFO L129 PetriNetUnfolder]: 66/657 cut-off events. [2021-03-26 15:04:08,080 INFO L130 PetriNetUnfolder]: For 1699/1783 co-relation queries the response was YES. [2021-03-26 15:04:08,082 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2520 conditions, 657 events. 66/657 cut-off events. For 1699/1783 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 6286 event pairs, 4 based on Foata normal form. 58/697 useless extension candidates. Maximal degree in co-relation 2292. Up to 168 conditions per place. [2021-03-26 15:04:08,084 INFO L132 encePairwiseOnDemand]: 60/71 looper letters, 24 selfloop transitions, 14 changer transitions 23/95 dead transitions. [2021-03-26 15:04:08,084 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 95 transitions, 961 flow [2021-03-26 15:04:08,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 15:04:08,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 15:04:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 499 transitions. [2021-03-26 15:04:08,086 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7028169014084507 [2021-03-26 15:04:08,086 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 499 transitions. [2021-03-26 15:04:08,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 499 transitions. [2021-03-26 15:04:08,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:08,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 499 transitions. [2021-03-26 15:04:08,087 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 49.9) internal successors, (499), 10 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,088 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 71.0) internal successors, (781), 11 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,088 INFO L185 Difference]: Start difference. First operand has 115 places, 94 transitions, 864 flow. Second operand 10 states and 499 transitions. [2021-03-26 15:04:08,088 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 95 transitions, 961 flow [2021-03-26 15:04:08,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 95 transitions, 848 flow, removed 13 selfloop flow, removed 11 redundant places. [2021-03-26 15:04:08,098 INFO L241 Difference]: Finished difference. Result has 114 places, 71 transitions, 561 flow [2021-03-26 15:04:08,098 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=561, PETRI_PLACES=114, PETRI_TRANSITIONS=71} [2021-03-26 15:04:08,099 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 80 predicate places. [2021-03-26 15:04:08,099 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:08,099 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 71 transitions, 561 flow [2021-03-26 15:04:08,099 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 71 transitions, 561 flow [2021-03-26 15:04:08,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 71 transitions, 561 flow [2021-03-26 15:04:08,129 INFO L129 PetriNetUnfolder]: 37/446 cut-off events. [2021-03-26 15:04:08,129 INFO L130 PetriNetUnfolder]: For 800/811 co-relation queries the response was YES. [2021-03-26 15:04:08,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 446 events. 37/446 cut-off events. For 800/811 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3905 event pairs, 1 based on Foata normal form. 10/447 useless extension candidates. Maximal degree in co-relation 1283. Up to 70 conditions per place. [2021-03-26 15:04:08,133 INFO L142 LiptonReduction]: Number of co-enabled transitions 390 [2021-03-26 15:04:08,289 INFO L154 LiptonReduction]: Checked pairs total: 41 [2021-03-26 15:04:08,289 INFO L156 LiptonReduction]: Total number of compositions: 7 [2021-03-26 15:04:08,289 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 190 [2021-03-26 15:04:08,290 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 70 transitions, 583 flow [2021-03-26 15:04:08,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:08,290 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:08,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 15:04:08,290 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:08,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:08,291 INFO L82 PathProgramCache]: Analyzing trace with hash 2113174838, now seen corresponding path program 5 times [2021-03-26 15:04:08,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:08,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227867470] [2021-03-26 15:04:08,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:08,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 15:04:08,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:08,353 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 15:04:08,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227867470] [2021-03-26 15:04:08,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:08,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 15:04:08,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623516812] [2021-03-26 15:04:08,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 15:04:08,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:08,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 15:04:08,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-03-26 15:04:08,355 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 78 [2021-03-26 15:04:08,356 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 70 transitions, 583 flow. Second operand has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,356 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:08,356 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 78 [2021-03-26 15:04:08,356 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:08,477 INFO L129 PetriNetUnfolder]: 39/366 cut-off events. [2021-03-26 15:04:08,478 INFO L130 PetriNetUnfolder]: For 833/889 co-relation queries the response was YES. [2021-03-26 15:04:08,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1300 conditions, 366 events. 39/366 cut-off events. For 833/889 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2922 event pairs, 8 based on Foata normal form. 4/354 useless extension candidates. Maximal degree in co-relation 1245. Up to 130 conditions per place. [2021-03-26 15:04:08,480 INFO L132 encePairwiseOnDemand]: 71/78 looper letters, 14 selfloop transitions, 5 changer transitions 6/68 dead transitions. [2021-03-26 15:04:08,480 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 68 transitions, 599 flow [2021-03-26 15:04:08,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-26 15:04:08,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-03-26 15:04:08,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 372 transitions. [2021-03-26 15:04:08,481 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5961538461538461 [2021-03-26 15:04:08,481 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 372 transitions. [2021-03-26 15:04:08,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 372 transitions. [2021-03-26 15:04:08,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:08,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 372 transitions. [2021-03-26 15:04:08,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,483 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 78.0) internal successors, (702), 9 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,483 INFO L185 Difference]: Start difference. First operand has 100 places, 70 transitions, 583 flow. Second operand 8 states and 372 transitions. [2021-03-26 15:04:08,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 68 transitions, 599 flow [2021-03-26 15:04:08,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 68 transitions, 494 flow, removed 18 selfloop flow, removed 21 redundant places. [2021-03-26 15:04:08,488 INFO L241 Difference]: Finished difference. Result has 85 places, 60 transitions, 388 flow [2021-03-26 15:04:08,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=388, PETRI_PLACES=85, PETRI_TRANSITIONS=60} [2021-03-26 15:04:08,488 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 51 predicate places. [2021-03-26 15:04:08,488 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:08,488 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 60 transitions, 388 flow [2021-03-26 15:04:08,491 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 60 transitions, 388 flow [2021-03-26 15:04:08,491 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 60 transitions, 388 flow [2021-03-26 15:04:08,506 INFO L129 PetriNetUnfolder]: 25/289 cut-off events. [2021-03-26 15:04:08,506 INFO L130 PetriNetUnfolder]: For 229/229 co-relation queries the response was YES. [2021-03-26 15:04:08,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 711 conditions, 289 events. 25/289 cut-off events. For 229/229 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2252 event pairs, 1 based on Foata normal form. 0/282 useless extension candidates. Maximal degree in co-relation 607. Up to 49 conditions per place. [2021-03-26 15:04:08,508 INFO L142 LiptonReduction]: Number of co-enabled transitions 276 [2021-03-26 15:04:08,556 INFO L154 LiptonReduction]: Checked pairs total: 174 [2021-03-26 15:04:08,556 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 15:04:08,556 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 68 [2021-03-26 15:04:08,557 INFO L480 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 384 flow [2021-03-26 15:04:08,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 45.125) internal successors, (361), 8 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:08,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:08,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 15:04:08,558 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:08,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:08,558 INFO L82 PathProgramCache]: Analyzing trace with hash 55311510, now seen corresponding path program 1 times [2021-03-26 15:04:08,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:08,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196392442] [2021-03-26 15:04:08,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:08,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:08,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 15:04:08,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 15:04:08,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:08,611 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 15:04:08,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196392442] [2021-03-26 15:04:08,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:08,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-26 15:04:08,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285010560] [2021-03-26 15:04:08,611 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 15:04:08,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:08,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 15:04:08,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-03-26 15:04:08,612 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 79 [2021-03-26 15:04:08,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 384 flow. Second operand has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 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 15:04:08,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:08,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 79 [2021-03-26 15:04:08,613 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:08,665 INFO L129 PetriNetUnfolder]: 18/188 cut-off events. [2021-03-26 15:04:08,665 INFO L130 PetriNetUnfolder]: For 293/319 co-relation queries the response was YES. [2021-03-26 15:04:08,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 188 events. 18/188 cut-off events. For 293/319 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1161 event pairs, 1 based on Foata normal form. 13/194 useless extension candidates. Maximal degree in co-relation 467. Up to 51 conditions per place. [2021-03-26 15:04:08,666 INFO L132 encePairwiseOnDemand]: 71/79 looper letters, 6 selfloop transitions, 3 changer transitions 15/65 dead transitions. [2021-03-26 15:04:08,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 65 transitions, 455 flow [2021-03-26 15:04:08,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-26 15:04:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-03-26 15:04:08,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 287 transitions. [2021-03-26 15:04:08,667 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6054852320675106 [2021-03-26 15:04:08,667 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 287 transitions. [2021-03-26 15:04:08,667 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 287 transitions. [2021-03-26 15:04:08,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:08,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 287 transitions. [2021-03-26 15:04:08,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,669 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 79.0) internal successors, (553), 7 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:08,669 INFO L185 Difference]: Start difference. First operand has 75 places, 59 transitions, 384 flow. Second operand 6 states and 287 transitions. [2021-03-26 15:04:08,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 65 transitions, 455 flow [2021-03-26 15:04:08,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 65 transitions, 397 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-03-26 15:04:08,671 INFO L241 Difference]: Finished difference. Result has 67 places, 50 transitions, 296 flow [2021-03-26 15:04:08,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=79, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=296, PETRI_PLACES=67, PETRI_TRANSITIONS=50} [2021-03-26 15:04:08,672 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, 33 predicate places. [2021-03-26 15:04:08,672 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:08,672 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 67 places, 50 transitions, 296 flow [2021-03-26 15:04:08,672 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 67 places, 50 transitions, 296 flow [2021-03-26 15:04:08,673 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 50 transitions, 296 flow [2021-03-26 15:04:08,679 INFO L129 PetriNetUnfolder]: 12/136 cut-off events. [2021-03-26 15:04:08,679 INFO L130 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2021-03-26 15:04:08,679 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 136 events. 12/136 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 796 event pairs, 0 based on Foata normal form. 0/135 useless extension candidates. Maximal degree in co-relation 302. Up to 33 conditions per place. [2021-03-26 15:04:08,680 INFO L142 LiptonReduction]: Number of co-enabled transitions 134 [2021-03-26 15:04:08,976 INFO L154 LiptonReduction]: Checked pairs total: 90 [2021-03-26 15:04:08,976 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-26 15:04:08,977 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-26 15:04:08,977 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 48 transitions, 300 flow [2021-03-26 15:04:08,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 45.333333333333336) internal successors, (272), 6 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 15:04:08,977 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 15:04:08,978 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 15:04:08,978 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 15:04:08,978 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 15:04:08,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 15:04:08,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1166818098, now seen corresponding path program 1 times [2021-03-26 15:04:08,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 15:04:08,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936960651] [2021-03-26 15:04:08,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 15:04:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 15:04:08,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:08,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:08,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:09,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:09,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:09,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:09,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 15:04:09,018 INFO L142 QuantifierPusher]: treesize reduction 1, result has 90.0 percent of original size [2021-03-26 15:04:09,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 15:04:09,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 15:04:09,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 15:04:09,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 15:04:09,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936960651] [2021-03-26 15:04:09,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 15:04:09,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 15:04:09,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397521735] [2021-03-26 15:04:09,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 15:04:09,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 15:04:09,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 15:04:09,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-03-26 15:04:09,030 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2021-03-26 15:04:09,031 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 48 transitions, 300 flow. Second operand has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:09,031 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 15:04:09,031 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2021-03-26 15:04:09,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 15:04:09,093 INFO L129 PetriNetUnfolder]: 0/18 cut-off events. [2021-03-26 15:04:09,094 INFO L130 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2021-03-26 15:04:09,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 18 events. 0/18 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 13 event pairs, 0 based on Foata normal form. 7/25 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2021-03-26 15:04:09,094 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 0 selfloop transitions, 0 changer transitions 16/16 dead transitions. [2021-03-26 15:04:09,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 16 transitions, 101 flow [2021-03-26 15:04:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-03-26 15:04:09,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-03-26 15:04:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 319 transitions. [2021-03-26 15:04:09,095 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5120385232744783 [2021-03-26 15:04:09,095 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 319 transitions. [2021-03-26 15:04:09,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 319 transitions. [2021-03-26 15:04:09,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 15:04:09,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 319 transitions. [2021-03-26 15:04:09,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 45.57142857142857) internal successors, (319), 7 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:09,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:09,104 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 89.0) internal successors, (712), 8 states have internal predecessors, (712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:09,104 INFO L185 Difference]: Start difference. First operand has 61 places, 48 transitions, 300 flow. Second operand 7 states and 319 transitions. [2021-03-26 15:04:09,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 16 transitions, 101 flow [2021-03-26 15:04:09,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 16 transitions, 61 flow, removed 0 selfloop flow, removed 16 redundant places. [2021-03-26 15:04:09,105 INFO L241 Difference]: Finished difference. Result has 31 places, 0 transitions, 0 flow [2021-03-26 15:04:09,105 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=31, PETRI_TRANSITIONS=0} [2021-03-26 15:04:09,105 INFO L343 CegarLoopForPetriNet]: 34 programPoint places, -3 predicate places. [2021-03-26 15:04:09,105 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 15:04:09,106 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 0 transitions, 0 flow [2021-03-26 15:04:09,106 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 0 transitions, 0 flow [2021-03-26 15:04:09,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 15:04:09,106 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 15:04:09,106 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 15:04:09,106 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 15:04:09,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 15:04:09,106 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 15:04:09,106 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 15:04:09,106 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-03-26 15:04:09,108 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-03-26 15:04:09,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 45.142857142857146) internal successors, (316), 7 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 15:04:09,108 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 15:04:09,113 INFO L202 PluginConnector]: Adding new model lamport.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:04:09 BasicIcfg [2021-03-26 15:04:09,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 15:04:09,116 INFO L168 Benchmark]: Toolchain (without parser) took 7926.99 ms. Allocated memory was 255.9 MB in the beginning and 499.1 MB in the end (delta: 243.3 MB). Free memory was 236.6 MB in the beginning and 371.8 MB in the end (delta: -135.2 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.0 GB. [2021-03-26 15:04:09,121 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 15:04:09,121 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 15:04:09,121 INFO L168 Benchmark]: Boogie Preprocessor took 16.84 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.2 MB in the end (delta: 855.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 15:04:09,121 INFO L168 Benchmark]: RCFGBuilder took 249.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 237.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. [2021-03-26 15:04:09,121 INFO L168 Benchmark]: TraceAbstraction took 7626.80 ms. Allocated memory was 255.9 MB in the beginning and 499.1 MB in the end (delta: 243.3 MB). Free memory was 237.6 MB in the beginning and 371.8 MB in the end (delta: -134.2 MB). Peak memory consumption was 109.1 MB. Max. memory is 16.0 GB. [2021-03-26 15:04:09,122 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 29.56 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.84 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.2 MB in the end (delta: 855.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 249.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 237.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 20.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 7626.80 ms. Allocated memory was 255.9 MB in the beginning and 499.1 MB in the end (delta: 243.3 MB). Free memory was 237.6 MB in the beginning and 371.8 MB in the end (delta: -134.2 MB). Peak memory consumption was 109.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 417.2ms, 46 PlacesBefore, 34 PlacesAfterwards, 36 TransitionsBefore, 24 TransitionsAfterwards, 412 CoEnabledTransitionPairs, 3 FixpointIterations, 4 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 992 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 434, positive: 362, positive conditional: 362, positive unconditional: 0, negative: 72, negative conditional: 72, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 434, positive: 362, positive conditional: 0, positive unconditional: 362, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 434, positive: 362, positive conditional: 0, positive unconditional: 362, negative: 72, negative conditional: 0, negative unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 302, positive: 269, positive conditional: 0, positive unconditional: 269, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 302, positive: 263, positive conditional: 0, positive unconditional: 263, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 39, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 139, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 434, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 302, unknown conditional: 0, unknown unconditional: 302] , Statistics on independence cache: Total cache size (in pairs): 302, Positive cache size: 269, Positive conditional cache size: 0, Positive unconditional cache size: 269, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 79.1ms, 40 PlacesBefore, 37 PlacesAfterwards, 34 TransitionsBefore, 33 TransitionsAfterwards, 248 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 702 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 269, positive: 212, positive conditional: 212, positive unconditional: 0, negative: 57, negative conditional: 57, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 269, positive: 212, positive conditional: 26, positive unconditional: 186, negative: 57, negative conditional: 9, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 269, positive: 212, positive conditional: 26, positive unconditional: 186, negative: 57, negative conditional: 9, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14, positive: 11, positive conditional: 1, positive unconditional: 10, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 3, negative conditional: 2, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 13, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 10, negative conditional: 8, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 269, positive: 201, positive conditional: 25, positive unconditional: 176, negative: 54, negative conditional: 7, negative unconditional: 47, unknown: 14, unknown conditional: 3, unknown unconditional: 11] , Statistics on independence cache: Total cache size (in pairs): 316, Positive cache size: 280, Positive conditional cache size: 1, Positive unconditional cache size: 279, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 19 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 91.5ms, 50 PlacesBefore, 50 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 406 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 153, positive: 128, positive conditional: 128, positive unconditional: 0, negative: 25, negative conditional: 25, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 128, positive conditional: 37, positive unconditional: 91, negative: 25, negative conditional: 12, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 128, positive conditional: 37, positive unconditional: 91, negative: 25, negative conditional: 12, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 5, positive unconditional: 4, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 1, positive unconditional: 1, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 7, positive conditional: 5, positive unconditional: 2, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 153, positive: 119, positive conditional: 32, positive unconditional: 87, negative: 23, negative conditional: 10, negative unconditional: 13, unknown: 11, unknown conditional: 7, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 327, Positive cache size: 289, Positive conditional cache size: 6, Positive unconditional cache size: 283, Negative cache size: 38, Negative conditional cache size: 4, Negative unconditional cache size: 34, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.1ms, 53 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 365 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 123, positive: 99, positive conditional: 99, positive unconditional: 0, negative: 24, negative conditional: 24, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 123, positive: 99, positive conditional: 15, positive unconditional: 84, negative: 24, negative conditional: 10, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 123, positive: 99, positive conditional: 15, positive unconditional: 84, negative: 24, negative conditional: 10, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 3, positive conditional: 1, positive unconditional: 2, 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: 4, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 17, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 123, positive: 96, positive conditional: 14, positive unconditional: 82, negative: 23, negative conditional: 9, negative unconditional: 14, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 331, Positive cache size: 292, Positive conditional cache size: 7, Positive unconditional cache size: 285, Negative cache size: 39, Negative conditional cache size: 5, Negative unconditional cache size: 34, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59.7ms, 65 PlacesBefore, 65 PlacesAfterwards, 64 TransitionsBefore, 64 TransitionsAfterwards, 484 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 182 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 50, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 54, positive: 40, positive conditional: 8, positive unconditional: 32, negative: 14, negative conditional: 10, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 40, positive conditional: 8, positive unconditional: 32, negative: 14, negative conditional: 10, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 54, positive: 40, positive conditional: 8, positive unconditional: 32, negative: 12, negative conditional: 8, negative unconditional: 4, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 333, Positive cache size: 292, Positive conditional cache size: 7, Positive unconditional cache size: 285, Negative cache size: 41, Negative conditional cache size: 7, Negative unconditional cache size: 34, Eliminated conditions: 14 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 54.7ms, 77 PlacesBefore, 77 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 248 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 54, positive: 42, positive conditional: 42, positive unconditional: 0, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 66, positive: 42, positive conditional: 8, positive unconditional: 34, negative: 24, negative conditional: 18, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 66, positive: 42, positive conditional: 8, positive unconditional: 34, negative: 24, negative conditional: 18, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 2, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 66, positive: 40, positive conditional: 6, positive unconditional: 34, negative: 23, negative conditional: 17, negative unconditional: 6, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 336, Positive cache size: 294, Positive conditional cache size: 9, Positive unconditional cache size: 285, Negative cache size: 42, Negative conditional cache size: 8, Negative unconditional cache size: 34, Eliminated conditions: 16 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49.2ms, 85 PlacesBefore, 85 PlacesAfterwards, 74 TransitionsBefore, 74 TransitionsAfterwards, 546 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 283 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 75, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 14, negative conditional: 14, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 81, positive: 61, positive conditional: 20, positive unconditional: 41, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 81, positive: 61, positive conditional: 20, positive unconditional: 41, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, 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: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 1, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 81, positive: 59, positive conditional: 20, positive unconditional: 39, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 3, unknown conditional: 1, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 339, Positive cache size: 296, Positive conditional cache size: 9, Positive unconditional cache size: 287, Negative cache size: 43, Negative conditional cache size: 9, Negative unconditional cache size: 34, Eliminated conditions: 6 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.5ms, 82 PlacesBefore, 82 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 312 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 152, positive: 137, positive conditional: 137, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 152, positive: 137, positive conditional: 38, positive unconditional: 99, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 152, positive: 137, positive conditional: 38, positive unconditional: 99, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, 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: 4, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, positive: 133, positive conditional: 36, positive unconditional: 97, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 4, unknown conditional: 2, unknown unconditional: 2] , Statistics on independence cache: Total cache size (in pairs): 343, Positive cache size: 300, Positive conditional cache size: 11, Positive unconditional cache size: 289, Negative cache size: 43, Negative conditional cache size: 9, Negative unconditional cache size: 34, Eliminated conditions: 36 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.5ms, 88 PlacesBefore, 88 PlacesAfterwards, 76 TransitionsBefore, 76 TransitionsAfterwards, 500 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 68 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 24, positive: 20, positive conditional: 8, positive unconditional: 12, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 24, positive: 20, positive conditional: 8, positive unconditional: 12, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 24, positive: 18, positive conditional: 6, positive unconditional: 12, negative: 4, negative conditional: 4, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 345, Positive cache size: 302, Positive conditional cache size: 13, Positive unconditional cache size: 289, Negative cache size: 43, Negative conditional cache size: 9, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 90.8ms, 93 PlacesBefore, 93 PlacesAfterwards, 75 TransitionsBefore, 75 TransitionsAfterwards, 476 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 153 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 73, positive: 63, positive conditional: 63, positive unconditional: 0, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 73, positive: 63, positive conditional: 23, positive unconditional: 40, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 73, positive: 63, positive conditional: 23, positive unconditional: 40, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.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: 73, positive: 62, positive conditional: 22, positive unconditional: 40, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 346, Positive cache size: 303, Positive conditional cache size: 14, Positive unconditional cache size: 289, Negative cache size: 43, Negative conditional cache size: 9, Negative unconditional cache size: 34, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 131.2ms, 99 PlacesBefore, 97 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 526 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 126 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 108, positive: 102, positive conditional: 102, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 114, positive: 102, positive conditional: 58, positive unconditional: 44, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 114, positive: 102, positive conditional: 58, positive unconditional: 44, negative: 12, negative conditional: 12, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 4, positive unconditional: 4, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 114, positive: 94, positive conditional: 54, positive unconditional: 40, negative: 10, negative conditional: 10, negative unconditional: 0, unknown: 10, unknown conditional: 6, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 356, Positive cache size: 311, Positive conditional cache size: 18, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 105.2ms, 108 PlacesBefore, 106 PlacesAfterwards, 90 TransitionsBefore, 90 TransitionsAfterwards, 562 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 10, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 10, positive: 9, positive conditional: 9, 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): 357, Positive cache size: 312, Positive conditional cache size: 19, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 82.9ms, 111 PlacesBefore, 111 PlacesAfterwards, 97 TransitionsBefore, 97 TransitionsAfterwards, 620 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4, positive: 4, positive conditional: 2, positive unconditional: 2, 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): 357, Positive cache size: 312, Positive conditional cache size: 19, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 89.8ms, 118 PlacesBefore, 117 PlacesAfterwards, 99 TransitionsBefore, 98 TransitionsAfterwards, 626 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, 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: 3, positive: 3, positive conditional: 1, positive unconditional: 2, 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): 357, Positive cache size: 312, Positive conditional cache size: 19, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 48.6ms, 119 PlacesBefore, 111 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 524 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 357, Positive cache size: 312, Positive conditional cache size: 19, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.2ms, 113 PlacesBefore, 111 PlacesAfterwards, 88 TransitionsBefore, 88 TransitionsAfterwards, 516 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 357, Positive cache size: 312, Positive conditional cache size: 19, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 104.5ms, 110 PlacesBefore, 110 PlacesAfterwards, 94 TransitionsBefore, 94 TransitionsAfterwards, 578 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 2, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, 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: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 359, Positive cache size: 314, Positive conditional cache size: 21, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 3 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 78.4ms, 116 PlacesBefore, 115 PlacesAfterwards, 95 TransitionsBefore, 94 TransitionsAfterwards, 586 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 4, positive conditional: 3, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 4, positive: 3, positive conditional: 2, positive unconditional: 1, 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): 360, Positive cache size: 315, Positive conditional cache size: 22, Positive unconditional cache size: 293, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 189.8ms, 114 PlacesBefore, 100 PlacesAfterwards, 71 TransitionsBefore, 70 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 7 TotalNumberOfCompositions, 41 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 41, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 41, positive: 41, positive conditional: 31, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 41, positive: 41, positive conditional: 31, positive unconditional: 10, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 4, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 41, positive: 36, positive conditional: 27, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 4, unknown unconditional: 1] , Statistics on independence cache: Total cache size (in pairs): 365, Positive cache size: 320, Positive conditional cache size: 26, Positive unconditional cache size: 294, Negative cache size: 45, Negative conditional cache size: 11, Negative unconditional cache size: 34, Eliminated conditions: 2 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 65.5ms, 85 PlacesBefore, 75 PlacesAfterwards, 60 TransitionsBefore, 59 TransitionsAfterwards, 276 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 174 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 137, positive: 126, positive conditional: 126, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 147, positive: 126, positive conditional: 96, positive unconditional: 30, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 147, positive: 126, positive conditional: 96, positive unconditional: 30, negative: 21, negative conditional: 10, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 17, positive: 15, positive conditional: 12, positive unconditional: 3, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 17, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 11, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 4, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 147, positive: 111, positive conditional: 84, positive unconditional: 27, negative: 19, negative conditional: 9, negative unconditional: 10, unknown: 17, unknown conditional: 13, unknown unconditional: 4] , Statistics on independence cache: Total cache size (in pairs): 382, Positive cache size: 335, Positive conditional cache size: 38, Positive unconditional cache size: 297, Negative cache size: 47, Negative conditional cache size: 12, Negative unconditional cache size: 35, Eliminated conditions: 10 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.4ms, 67 PlacesBefore, 61 PlacesAfterwards, 50 TransitionsBefore, 48 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 90, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 90, positive: 90, positive conditional: 65, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 90, positive: 90, positive conditional: 65, positive unconditional: 25, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 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: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, positive: 89, positive conditional: 64, positive unconditional: 25, 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): 383, Positive cache size: 336, Positive conditional cache size: 39, Positive unconditional cache size: 297, Negative cache size: 47, Negative conditional cache size: 12, Negative unconditional cache size: 35, Eliminated conditions: 5 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.6ms, 31 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: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 383, Positive cache size: 336, Positive conditional cache size: 39, Positive unconditional cache size: 297, Negative cache size: 47, Negative conditional cache size: 12, Negative unconditional cache size: 35, Eliminated conditions: 0 - PositiveResult [Line: 71]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.8ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 7475.2ms, OverallIterations: 21, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 3455.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 489.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 317 SDslu, 95 SDs, 0 SdLazy, 1560 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 772.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1297.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=933occurred in iteration=13, InterpolantAutomatonStates: 165, 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: 32.2ms SsaConstructionTime, 151.5ms SatisfiabilityAnalysisTime, 1118.6ms InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 417 ConstructedInterpolants, 0 QuantifiedInterpolants, 1539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 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...