/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 03:35:40,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 03:35:40,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 03:35:40,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 03:35:40,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 03:35:40,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 03:35:40,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 03:35:40,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 03:35:40,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 03:35:40,353 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 03:35:40,354 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 03:35:40,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 03:35:40,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 03:35:40,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 03:35:40,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 03:35:40,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 03:35:40,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 03:35:40,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 03:35:40,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 03:35:40,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 03:35:40,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 03:35:40,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 03:35:40,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 03:35:40,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 03:35:40,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 03:35:40,392 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 03:35:40,393 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 03:35:40,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 03:35:40,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-03-26 03:35:40,433 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 03:35:40,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 03:35:40,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 03:35:40,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 03:35:40,437 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 03:35:40,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 03:35:40,437 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 03:35:40,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 03:35:40,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 03:35:40,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 03:35:40,439 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 03:35:40,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 03:35:40,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 03:35:40,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 03:35:40,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 03:35:40,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 03:35:40,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 03:35:40,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 03:35:40,441 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 03:35:40,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 03:35:40,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 03:35:40,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 03:35:40,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 03:35:40,759 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 03:35:40,760 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 03:35:40,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl [2021-03-26 03:35:40,762 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/showcase/NonAtomicIncrement_2Threads.bpl' [2021-03-26 03:35:40,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 03:35:40,803 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 03:35:40,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 03:35:40,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 03:35:40,805 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 03:35:40,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 03:35:40,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 03:35:40,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 03:35:40,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 03:35:40,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/1) ... [2021-03-26 03:35:40,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 03:35:40,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 03:35:40,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 03:35:40,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 03:35:40,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (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 03:35:40,900 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 03:35:40,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 03:35:40,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 03:35:40,902 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess1 given in one single declaration [2021-03-26 03:35:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess1 [2021-03-26 03:35:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess1 [2021-03-26 03:35:40,903 INFO L124 BoogieDeclarations]: Specification and implementation of procedure IncrementProcess2 given in one single declaration [2021-03-26 03:35:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure IncrementProcess2 [2021-03-26 03:35:40,903 INFO L138 BoogieDeclarations]: Found implementation of procedure IncrementProcess2 [2021-03-26 03:35:40,904 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 03:35:41,048 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 03:35:41,049 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 03:35:41,050 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:35:41 BoogieIcfgContainer [2021-03-26 03:35:41,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 03:35:41,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 03:35:41,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 03:35:41,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 03:35:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 03:35:40" (1/2) ... [2021-03-26 03:35:41,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46057a27 and model type NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 03:35:41, skipping insertion in model container [2021-03-26 03:35:41,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 03:35:41" (2/2) ... [2021-03-26 03:35:41,058 INFO L111 eAbstractionObserver]: Analyzing ICFG NonAtomicIncrement_2Threads.bpl [2021-03-26 03:35:41,062 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 03:35:41,065 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 03:35:41,067 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 03:35:41,102 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,102 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,103 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,104 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,104 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,104 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,104 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,105 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,106 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,108 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess1Thread1of1ForFork0_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,116 WARN L313 ript$VariableManager]: TermVariabe IncrementProcess2Thread1of1ForFork1_localx not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 03:35:41,126 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-26 03:35:41,169 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-03-26 03:35:41,200 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 03:35:41,200 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 03:35:41,200 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 03:35:41,200 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 03:35:41,201 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 03:35:41,201 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 03:35:41,201 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 03:35:41,201 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 03:35:41,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 26 transitions, 74 flow [2021-03-26 03:35:41,248 INFO L129 PetriNetUnfolder]: 1/24 cut-off events. [2021-03-26 03:35:41,249 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 03:35:41,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35 conditions, 24 events. 1/24 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2021-03-26 03:35:41,252 INFO L82 GeneralOperation]: Start removeDead. Operand has 31 places, 26 transitions, 74 flow [2021-03-26 03:35:41,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 27 places, 22 transitions, 62 flow [2021-03-26 03:35:41,260 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:41,274 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 22 transitions, 62 flow [2021-03-26 03:35:41,282 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 22 transitions, 62 flow [2021-03-26 03:35:41,286 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 22 transitions, 62 flow [2021-03-26 03:35:41,302 INFO L129 PetriNetUnfolder]: 1/22 cut-off events. [2021-03-26 03:35:41,303 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 03:35:41,303 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 22 events. 1/22 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 18 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 9. Up to 3 conditions per place. [2021-03-26 03:35:41,304 INFO L142 LiptonReduction]: Number of co-enabled transitions 140 [2021-03-26 03:35:41,437 INFO L154 LiptonReduction]: Checked pairs total: 354 [2021-03-26 03:35:41,437 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 03:35:41,439 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 180 [2021-03-26 03:35:41,465 INFO L129 PetriNetUnfolder]: 1/19 cut-off events. [2021-03-26 03:35:41,465 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 03:35:41,466 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:41,466 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:41,467 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:41,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1717627251, now seen corresponding path program 1 times [2021-03-26 03:35:41,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:41,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737474801] [2021-03-26 03:35:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:41,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:41,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,652 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:41,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:41,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737474801] [2021-03-26 03:35:41,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:41,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-26 03:35:41,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520013731] [2021-03-26 03:35:41,790 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-26 03:35:41,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:41,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-26 03:35:41,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2021-03-26 03:35:41,815 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 28 [2021-03-26 03:35:41,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 20 transitions, 58 flow. Second operand has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:41,818 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:41,818 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 28 [2021-03-26 03:35:41,819 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:42,242 INFO L129 PetriNetUnfolder]: 79/236 cut-off events. [2021-03-26 03:35:42,243 INFO L130 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2021-03-26 03:35:42,246 INFO L84 FinitePrefix]: Finished finitePrefix Result has 492 conditions, 236 events. 79/236 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1080 event pairs, 25 based on Foata normal form. 4/240 useless extension candidates. Maximal degree in co-relation 428. Up to 81 conditions per place. [2021-03-26 03:35:42,250 INFO L132 encePairwiseOnDemand]: 14/28 looper letters, 41 selfloop transitions, 27 changer transitions 14/86 dead transitions. [2021-03-26 03:35:42,250 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 86 transitions, 357 flow [2021-03-26 03:35:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-26 03:35:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-26 03:35:42,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 248 transitions. [2021-03-26 03:35:42,261 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49206349206349204 [2021-03-26 03:35:42,261 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 248 transitions. [2021-03-26 03:35:42,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 248 transitions. [2021-03-26 03:35:42,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:42,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 248 transitions. [2021-03-26 03:35:42,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 13.777777777777779) internal successors, (248), 18 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:42,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:42,273 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 28.0) internal successors, (532), 19 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:42,275 INFO L185 Difference]: Start difference. First operand has 25 places, 20 transitions, 58 flow. Second operand 18 states and 248 transitions. [2021-03-26 03:35:42,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 86 transitions, 357 flow [2021-03-26 03:35:42,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 86 transitions, 343 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-26 03:35:42,283 INFO L241 Difference]: Finished difference. Result has 50 places, 48 transitions, 240 flow [2021-03-26 03:35:42,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=46, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=240, PETRI_PLACES=50, PETRI_TRANSITIONS=48} [2021-03-26 03:35:42,285 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2021-03-26 03:35:42,286 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:42,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 48 transitions, 240 flow [2021-03-26 03:35:42,286 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 48 transitions, 240 flow [2021-03-26 03:35:42,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 48 transitions, 240 flow [2021-03-26 03:35:42,300 INFO L129 PetriNetUnfolder]: 28/123 cut-off events. [2021-03-26 03:35:42,300 INFO L130 PetriNetUnfolder]: For 195/195 co-relation queries the response was YES. [2021-03-26 03:35:42,301 INFO L84 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 123 events. 28/123 cut-off events. For 195/195 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 554 event pairs, 5 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 324. Up to 28 conditions per place. [2021-03-26 03:35:42,311 INFO L142 LiptonReduction]: Number of co-enabled transitions 138 [2021-03-26 03:35:42,484 INFO L154 LiptonReduction]: Checked pairs total: 843 [2021-03-26 03:35:42,484 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-26 03:35:42,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 200 [2021-03-26 03:35:42,487 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 48 transitions, 255 flow [2021-03-26 03:35:42,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 10.066666666666666) internal successors, (151), 15 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:42,488 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:42,488 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:42,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 03:35:42,488 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:42,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:42,489 INFO L82 PathProgramCache]: Analyzing trace with hash 515928769, now seen corresponding path program 2 times [2021-03-26 03:35:42,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:42,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524128001] [2021-03-26 03:35:42,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:42,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:42,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:42,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524128001] [2021-03-26 03:35:42,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:42,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 03:35:42,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351897298] [2021-03-26 03:35:42,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 03:35:42,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:42,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 03:35:42,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-03-26 03:35:42,583 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 36 [2021-03-26 03:35:42,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 48 transitions, 255 flow. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:42,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:42,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 36 [2021-03-26 03:35:42,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:43,036 INFO L129 PetriNetUnfolder]: 122/417 cut-off events. [2021-03-26 03:35:43,037 INFO L130 PetriNetUnfolder]: For 1494/1494 co-relation queries the response was YES. [2021-03-26 03:35:43,040 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 417 events. 122/417 cut-off events. For 1494/1494 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2699 event pairs, 7 based on Foata normal form. 2/419 useless extension candidates. Maximal degree in co-relation 1541. Up to 134 conditions per place. [2021-03-26 03:35:43,044 INFO L132 encePairwiseOnDemand]: 14/36 looper letters, 68 selfloop transitions, 68 changer transitions 8/148 dead transitions. [2021-03-26 03:35:43,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 148 transitions, 1209 flow [2021-03-26 03:35:43,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-26 03:35:43,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-26 03:35:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 302 transitions. [2021-03-26 03:35:43,049 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3994708994708995 [2021-03-26 03:35:43,049 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 302 transitions. [2021-03-26 03:35:43,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 302 transitions. [2021-03-26 03:35:43,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:43,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 302 transitions. [2021-03-26 03:35:43,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 14.380952380952381) internal successors, (302), 21 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 36.0) internal successors, (792), 22 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,057 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 36.0) internal successors, (792), 22 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,058 INFO L185 Difference]: Start difference. First operand has 44 places, 48 transitions, 255 flow. Second operand 21 states and 302 transitions. [2021-03-26 03:35:43,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 148 transitions, 1209 flow [2021-03-26 03:35:43,068 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 148 transitions, 1039 flow, removed 85 selfloop flow, removed 6 redundant places. [2021-03-26 03:35:43,071 INFO L241 Difference]: Finished difference. Result has 72 places, 104 transitions, 851 flow [2021-03-26 03:35:43,072 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=36, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=851, PETRI_PLACES=72, PETRI_TRANSITIONS=104} [2021-03-26 03:35:43,072 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 47 predicate places. [2021-03-26 03:35:43,072 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:43,073 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 104 transitions, 851 flow [2021-03-26 03:35:43,073 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 104 transitions, 851 flow [2021-03-26 03:35:43,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 104 transitions, 851 flow [2021-03-26 03:35:43,100 INFO L129 PetriNetUnfolder]: 59/302 cut-off events. [2021-03-26 03:35:43,101 INFO L130 PetriNetUnfolder]: For 1242/1256 co-relation queries the response was YES. [2021-03-26 03:35:43,103 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1193 conditions, 302 events. 59/302 cut-off events. For 1242/1256 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2096 event pairs, 0 based on Foata normal form. 7/304 useless extension candidates. Maximal degree in co-relation 1057. Up to 83 conditions per place. [2021-03-26 03:35:43,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 214 [2021-03-26 03:35:43,219 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 03:35:43,220 INFO L156 LiptonReduction]: Total number of compositions: 5 [2021-03-26 03:35:43,220 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 148 [2021-03-26 03:35:43,221 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 102 transitions, 848 flow [2021-03-26 03:35:43,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:43,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:43,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 03:35:43,221 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:43,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:43,222 INFO L82 PathProgramCache]: Analyzing trace with hash 1292040641, now seen corresponding path program 1 times [2021-03-26 03:35:43,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:43,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921100078] [2021-03-26 03:35:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:43,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:35:43,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 03:35:43,242 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 03:35:43,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921100078] [2021-03-26 03:35:43,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:43,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 03:35:43,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438940900] [2021-03-26 03:35:43,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 03:35:43,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:43,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 03:35:43,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 03:35:43,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 39 [2021-03-26 03:35:43,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 102 transitions, 848 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:43,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 39 [2021-03-26 03:35:43,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:43,275 INFO L129 PetriNetUnfolder]: 45/266 cut-off events. [2021-03-26 03:35:43,276 INFO L130 PetriNetUnfolder]: For 1344/1355 co-relation queries the response was YES. [2021-03-26 03:35:43,277 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1177 conditions, 266 events. 45/266 cut-off events. For 1344/1355 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1790 event pairs, 0 based on Foata normal form. 27/288 useless extension candidates. Maximal degree in co-relation 1087. Up to 81 conditions per place. [2021-03-26 03:35:43,278 INFO L132 encePairwiseOnDemand]: 37/39 looper letters, 1 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2021-03-26 03:35:43,278 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 100 transitions, 846 flow [2021-03-26 03:35:43,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 03:35:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 03:35:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2021-03-26 03:35:43,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2021-03-26 03:35:43,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 111 transitions. [2021-03-26 03:35:43,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 111 transitions. [2021-03-26 03:35:43,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:43,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 111 transitions. [2021-03-26 03:35:43,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,281 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,281 INFO L185 Difference]: Start difference. First operand has 71 places, 102 transitions, 848 flow. Second operand 3 states and 111 transitions. [2021-03-26 03:35:43,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 100 transitions, 846 flow [2021-03-26 03:35:43,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 100 transitions, 770 flow, removed 34 selfloop flow, removed 1 redundant places. [2021-03-26 03:35:43,292 INFO L241 Difference]: Finished difference. Result has 72 places, 100 transitions, 768 flow [2021-03-26 03:35:43,293 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=768, PETRI_PLACES=72, PETRI_TRANSITIONS=100} [2021-03-26 03:35:43,293 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 47 predicate places. [2021-03-26 03:35:43,293 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:43,293 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 100 transitions, 768 flow [2021-03-26 03:35:43,293 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 100 transitions, 768 flow [2021-03-26 03:35:43,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 100 transitions, 768 flow [2021-03-26 03:35:43,317 INFO L129 PetriNetUnfolder]: 45/264 cut-off events. [2021-03-26 03:35:43,318 INFO L130 PetriNetUnfolder]: For 1155/1169 co-relation queries the response was YES. [2021-03-26 03:35:43,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 264 events. 45/264 cut-off events. For 1155/1169 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1783 event pairs, 0 based on Foata normal form. 7/266 useless extension candidates. Maximal degree in co-relation 1072. Up to 73 conditions per place. [2021-03-26 03:35:43,321 INFO L142 LiptonReduction]: Number of co-enabled transitions 184 [2021-03-26 03:35:43,333 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:43,334 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:43,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-03-26 03:35:43,335 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 100 transitions, 768 flow [2021-03-26 03:35:43,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:43,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:43,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 03:35:43,336 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash -2129733205, now seen corresponding path program 1 times [2021-03-26 03:35:43,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:43,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331362110] [2021-03-26 03:35:43,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:43,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,402 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,409 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 03:35:43,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331362110] [2021-03-26 03:35:43,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:43,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:43,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597401434] [2021-03-26 03:35:43,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:43,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:43,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:43,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:43,415 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 39 [2021-03-26 03:35:43,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 100 transitions, 768 flow. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:43,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 39 [2021-03-26 03:35:43,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:43,584 INFO L129 PetriNetUnfolder]: 101/406 cut-off events. [2021-03-26 03:35:43,585 INFO L130 PetriNetUnfolder]: For 2137/2150 co-relation queries the response was YES. [2021-03-26 03:35:43,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2019 conditions, 406 events. 101/406 cut-off events. For 2137/2150 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2798 event pairs, 26 based on Foata normal form. 3/408 useless extension candidates. Maximal degree in co-relation 1985. Up to 285 conditions per place. [2021-03-26 03:35:43,589 INFO L132 encePairwiseOnDemand]: 26/39 looper letters, 93 selfloop transitions, 26 changer transitions 16/138 dead transitions. [2021-03-26 03:35:43,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 138 transitions, 1343 flow [2021-03-26 03:35:43,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 166 transitions. [2021-03-26 03:35:43,590 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.38694638694638694 [2021-03-26 03:35:43,590 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 166 transitions. [2021-03-26 03:35:43,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 166 transitions. [2021-03-26 03:35:43,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:43,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 166 transitions. [2021-03-26 03:35:43,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,592 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 39.0) internal successors, (468), 12 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,592 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 39.0) internal successors, (468), 12 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,593 INFO L185 Difference]: Start difference. First operand has 72 places, 100 transitions, 768 flow. Second operand 11 states and 166 transitions. [2021-03-26 03:35:43,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 138 transitions, 1343 flow [2021-03-26 03:35:43,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 138 transitions, 1342 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 03:35:43,605 INFO L241 Difference]: Finished difference. Result has 89 places, 114 transitions, 1023 flow [2021-03-26 03:35:43,605 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1023, PETRI_PLACES=89, PETRI_TRANSITIONS=114} [2021-03-26 03:35:43,606 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 64 predicate places. [2021-03-26 03:35:43,606 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:43,606 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 114 transitions, 1023 flow [2021-03-26 03:35:43,606 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 114 transitions, 1023 flow [2021-03-26 03:35:43,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 114 transitions, 1023 flow [2021-03-26 03:35:43,635 INFO L129 PetriNetUnfolder]: 47/286 cut-off events. [2021-03-26 03:35:43,635 INFO L130 PetriNetUnfolder]: For 1735/1750 co-relation queries the response was YES. [2021-03-26 03:35:43,636 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1364 conditions, 286 events. 47/286 cut-off events. For 1735/1750 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2027 event pairs, 0 based on Foata normal form. 8/288 useless extension candidates. Maximal degree in co-relation 1324. Up to 82 conditions per place. [2021-03-26 03:35:43,638 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-26 03:35:43,725 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 03:35:43,725 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 03:35:43,726 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120 [2021-03-26 03:35:43,727 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 113 transitions, 1037 flow [2021-03-26 03:35:43,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:43,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:43,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-26 03:35:43,727 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:43,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:43,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1387254801, now seen corresponding path program 1 times [2021-03-26 03:35:43,729 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:43,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109474191] [2021-03-26 03:35:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:43,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:43,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,759 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:43,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:43,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109474191] [2021-03-26 03:35:43,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:43,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 03:35:43,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940471331] [2021-03-26 03:35:43,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 03:35:43,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:43,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 03:35:43,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-03-26 03:35:43,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 42 [2021-03-26 03:35:43,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 113 transitions, 1037 flow. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:43,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:43,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 42 [2021-03-26 03:35:43,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:44,076 INFO L129 PetriNetUnfolder]: 99/392 cut-off events. [2021-03-26 03:35:44,076 INFO L130 PetriNetUnfolder]: For 2855/2855 co-relation queries the response was YES. [2021-03-26 03:35:44,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2203 conditions, 392 events. 99/392 cut-off events. For 2855/2855 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2571 event pairs, 31 based on Foata normal form. 4/396 useless extension candidates. Maximal degree in co-relation 2099. Up to 287 conditions per place. [2021-03-26 03:35:44,080 INFO L132 encePairwiseOnDemand]: 26/42 looper letters, 89 selfloop transitions, 14 changer transitions 22/127 dead transitions. [2021-03-26 03:35:44,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 127 transitions, 1459 flow [2021-03-26 03:35:44,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 03:35:44,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 03:35:44,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 186 transitions. [2021-03-26 03:35:44,082 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3163265306122449 [2021-03-26 03:35:44,083 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 186 transitions. [2021-03-26 03:35:44,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 186 transitions. [2021-03-26 03:35:44,084 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:44,084 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 186 transitions. [2021-03-26 03:35:44,084 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 42.0) internal successors, (630), 15 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,086 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 42.0) internal successors, (630), 15 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,086 INFO L185 Difference]: Start difference. First operand has 88 places, 113 transitions, 1037 flow. Second operand 14 states and 186 transitions. [2021-03-26 03:35:44,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 127 transitions, 1459 flow [2021-03-26 03:35:44,099 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 127 transitions, 1341 flow, removed 57 selfloop flow, removed 2 redundant places. [2021-03-26 03:35:44,102 INFO L241 Difference]: Finished difference. Result has 106 places, 101 transitions, 910 flow [2021-03-26 03:35:44,102 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=42, PETRI_DIFFERENCE_MINUEND_FLOW=973, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=910, PETRI_PLACES=106, PETRI_TRANSITIONS=101} [2021-03-26 03:35:44,103 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 81 predicate places. [2021-03-26 03:35:44,103 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:44,103 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 101 transitions, 910 flow [2021-03-26 03:35:44,103 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 101 transitions, 910 flow [2021-03-26 03:35:44,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 101 transitions, 910 flow [2021-03-26 03:35:44,149 INFO L129 PetriNetUnfolder]: 43/262 cut-off events. [2021-03-26 03:35:44,149 INFO L130 PetriNetUnfolder]: For 2036/2050 co-relation queries the response was YES. [2021-03-26 03:35:44,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1336 conditions, 262 events. 43/262 cut-off events. For 2036/2050 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1803 event pairs, 2 based on Foata normal form. 6/262 useless extension candidates. Maximal degree in co-relation 1289. Up to 75 conditions per place. [2021-03-26 03:35:44,153 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-26 03:35:44,176 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 03:35:44,176 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 03:35:44,177 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74 [2021-03-26 03:35:44,181 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 101 transitions, 914 flow [2021-03-26 03:35:44,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,181 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:44,182 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:44,182 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 03:35:44,182 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:44,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:44,182 INFO L82 PathProgramCache]: Analyzing trace with hash -311435340, now seen corresponding path program 1 times [2021-03-26 03:35:44,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:44,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392018974] [2021-03-26 03:35:44,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:44,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:35:44,284 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 03:35:44,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 03:35:44,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,349 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 03:35:44,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392018974] [2021-03-26 03:35:44,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:44,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 03:35:44,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998109741] [2021-03-26 03:35:44,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 03:35:44,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:44,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 03:35:44,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-03-26 03:35:44,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 43 [2021-03-26 03:35:44,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 101 transitions, 914 flow. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:44,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 43 [2021-03-26 03:35:44,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:44,573 INFO L129 PetriNetUnfolder]: 97/365 cut-off events. [2021-03-26 03:35:44,574 INFO L130 PetriNetUnfolder]: For 3201/3201 co-relation queries the response was YES. [2021-03-26 03:35:44,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 365 events. 97/365 cut-off events. For 3201/3201 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2294 event pairs, 31 based on Foata normal form. 1/366 useless extension candidates. Maximal degree in co-relation 2129. Up to 286 conditions per place. [2021-03-26 03:35:44,578 INFO L132 encePairwiseOnDemand]: 32/43 looper letters, 88 selfloop transitions, 12 changer transitions 8/110 dead transitions. [2021-03-26 03:35:44,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 110 transitions, 1221 flow [2021-03-26 03:35:44,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 03:35:44,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 03:35:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 133 transitions. [2021-03-26 03:35:44,579 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30930232558139537 [2021-03-26 03:35:44,579 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 133 transitions. [2021-03-26 03:35:44,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 133 transitions. [2021-03-26 03:35:44,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:44,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 133 transitions. [2021-03-26 03:35:44,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 13.3) internal successors, (133), 10 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,581 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,581 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 43.0) internal successors, (473), 11 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,581 INFO L185 Difference]: Start difference. First operand has 88 places, 101 transitions, 914 flow. Second operand 10 states and 133 transitions. [2021-03-26 03:35:44,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 110 transitions, 1221 flow [2021-03-26 03:35:44,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 110 transitions, 1147 flow, removed 23 selfloop flow, removed 15 redundant places. [2021-03-26 03:35:44,597 INFO L241 Difference]: Finished difference. Result has 87 places, 98 transitions, 853 flow [2021-03-26 03:35:44,597 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=848, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=853, PETRI_PLACES=87, PETRI_TRANSITIONS=98} [2021-03-26 03:35:44,598 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 62 predicate places. [2021-03-26 03:35:44,598 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:44,598 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 98 transitions, 853 flow [2021-03-26 03:35:44,598 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 98 transitions, 853 flow [2021-03-26 03:35:44,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 78 places, 98 transitions, 853 flow [2021-03-26 03:35:44,624 INFO L129 PetriNetUnfolder]: 42/256 cut-off events. [2021-03-26 03:35:44,625 INFO L130 PetriNetUnfolder]: For 1799/1815 co-relation queries the response was YES. [2021-03-26 03:35:44,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1252 conditions, 256 events. 42/256 cut-off events. For 1799/1815 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1761 event pairs, 2 based on Foata normal form. 7/257 useless extension candidates. Maximal degree in co-relation 1218. Up to 73 conditions per place. [2021-03-26 03:35:44,627 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-26 03:35:44,631 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:44,631 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:44,631 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 03:35:44,632 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 98 transitions, 853 flow [2021-03-26 03:35:44,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,632 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:44,632 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:44,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 03:35:44,632 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:44,633 INFO L82 PathProgramCache]: Analyzing trace with hash 507451181, now seen corresponding path program 1 times [2021-03-26 03:35:44,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:44,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722956230] [2021-03-26 03:35:44,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:44,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,649 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,653 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:44,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:44,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722956230] [2021-03-26 03:35:44,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:44,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:44,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11293402] [2021-03-26 03:35:44,683 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:44,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:44,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:44,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:44,684 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 43 [2021-03-26 03:35:44,684 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 98 transitions, 853 flow. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,684 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:44,684 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 43 [2021-03-26 03:35:44,684 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:44,868 INFO L129 PetriNetUnfolder]: 109/448 cut-off events. [2021-03-26 03:35:44,869 INFO L130 PetriNetUnfolder]: For 3703/3712 co-relation queries the response was YES. [2021-03-26 03:35:44,870 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2552 conditions, 448 events. 109/448 cut-off events. For 3703/3712 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3242 event pairs, 22 based on Foata normal form. 9/456 useless extension candidates. Maximal degree in co-relation 2516. Up to 273 conditions per place. [2021-03-26 03:35:44,873 INFO L132 encePairwiseOnDemand]: 27/43 looper letters, 93 selfloop transitions, 41 changer transitions 22/159 dead transitions. [2021-03-26 03:35:44,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 159 transitions, 1714 flow [2021-03-26 03:35:44,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:44,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:44,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 172 transitions. [2021-03-26 03:35:44,874 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.36363636363636365 [2021-03-26 03:35:44,874 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 172 transitions. [2021-03-26 03:35:44,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 172 transitions. [2021-03-26 03:35:44,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:44,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 172 transitions. [2021-03-26 03:35:44,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.636363636363637) internal successors, (172), 11 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,876 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 43.0) internal successors, (516), 12 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:44,876 INFO L185 Difference]: Start difference. First operand has 78 places, 98 transitions, 853 flow. Second operand 11 states and 172 transitions. [2021-03-26 03:35:44,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 159 transitions, 1714 flow [2021-03-26 03:35:44,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 159 transitions, 1662 flow, removed 12 selfloop flow, removed 8 redundant places. [2021-03-26 03:35:44,893 INFO L241 Difference]: Finished difference. Result has 86 places, 118 transitions, 1182 flow [2021-03-26 03:35:44,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=43, PETRI_DIFFERENCE_MINUEND_FLOW=817, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1182, PETRI_PLACES=86, PETRI_TRANSITIONS=118} [2021-03-26 03:35:44,893 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 61 predicate places. [2021-03-26 03:35:44,893 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:44,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 118 transitions, 1182 flow [2021-03-26 03:35:44,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 118 transitions, 1182 flow [2021-03-26 03:35:44,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 118 transitions, 1182 flow [2021-03-26 03:35:44,926 INFO L129 PetriNetUnfolder]: 50/328 cut-off events. [2021-03-26 03:35:44,926 INFO L130 PetriNetUnfolder]: For 2474/2487 co-relation queries the response was YES. [2021-03-26 03:35:44,928 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1681 conditions, 328 events. 50/328 cut-off events. For 2474/2487 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2502 event pairs, 2 based on Foata normal form. 5/326 useless extension candidates. Maximal degree in co-relation 1641. Up to 98 conditions per place. [2021-03-26 03:35:44,930 INFO L142 LiptonReduction]: Number of co-enabled transitions 186 [2021-03-26 03:35:45,011 INFO L154 LiptonReduction]: Checked pairs total: 3 [2021-03-26 03:35:45,012 INFO L156 LiptonReduction]: Total number of compositions: 4 [2021-03-26 03:35:45,012 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 119 [2021-03-26 03:35:45,012 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 118 transitions, 1209 flow [2021-03-26 03:35:45,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 9 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,013 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:45,013 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:45,013 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-26 03:35:45,013 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:45,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:45,013 INFO L82 PathProgramCache]: Analyzing trace with hash 510076957, now seen corresponding path program 2 times [2021-03-26 03:35:45,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:45,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836342905] [2021-03-26 03:35:45,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:45,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,064 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 03:35:45,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836342905] [2021-03-26 03:35:45,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:45,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:45,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886882586] [2021-03-26 03:35:45,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:45,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:45,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:45,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:45,066 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2021-03-26 03:35:45,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 118 transitions, 1209 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:45,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2021-03-26 03:35:45,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:45,358 INFO L129 PetriNetUnfolder]: 103/459 cut-off events. [2021-03-26 03:35:45,359 INFO L130 PetriNetUnfolder]: For 3982/3982 co-relation queries the response was YES. [2021-03-26 03:35:45,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2717 conditions, 459 events. 103/459 cut-off events. For 3982/3982 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 3346 event pairs, 28 based on Foata normal form. 5/464 useless extension candidates. Maximal degree in co-relation 2533. Up to 279 conditions per place. [2021-03-26 03:35:45,363 INFO L132 encePairwiseOnDemand]: 34/47 looper letters, 103 selfloop transitions, 35 changer transitions 25/165 dead transitions. [2021-03-26 03:35:45,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 165 transitions, 2112 flow [2021-03-26 03:35:45,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 03:35:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 03:35:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 203 transitions. [2021-03-26 03:35:45,365 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.30851063829787234 [2021-03-26 03:35:45,365 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 203 transitions. [2021-03-26 03:35:45,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 203 transitions. [2021-03-26 03:35:45,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:45,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 203 transitions. [2021-03-26 03:35:45,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 14.5) internal successors, (203), 14 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 47.0) internal successors, (705), 15 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,367 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 47.0) internal successors, (705), 15 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,367 INFO L185 Difference]: Start difference. First operand has 86 places, 118 transitions, 1209 flow. Second operand 14 states and 203 transitions. [2021-03-26 03:35:45,367 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 165 transitions, 2112 flow [2021-03-26 03:35:45,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 165 transitions, 1860 flow, removed 115 selfloop flow, removed 3 redundant places. [2021-03-26 03:35:45,388 INFO L241 Difference]: Finished difference. Result has 107 places, 126 transitions, 1356 flow [2021-03-26 03:35:45,389 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1111, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1356, PETRI_PLACES=107, PETRI_TRANSITIONS=126} [2021-03-26 03:35:45,389 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 82 predicate places. [2021-03-26 03:35:45,389 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:45,389 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 126 transitions, 1356 flow [2021-03-26 03:35:45,389 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 126 transitions, 1356 flow [2021-03-26 03:35:45,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 106 places, 126 transitions, 1356 flow [2021-03-26 03:35:45,422 INFO L129 PetriNetUnfolder]: 44/316 cut-off events. [2021-03-26 03:35:45,422 INFO L130 PetriNetUnfolder]: For 2629/2649 co-relation queries the response was YES. [2021-03-26 03:35:45,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1698 conditions, 316 events. 44/316 cut-off events. For 2629/2649 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2407 event pairs, 2 based on Foata normal form. 11/323 useless extension candidates. Maximal degree in co-relation 1648. Up to 84 conditions per place. [2021-03-26 03:35:45,426 INFO L142 LiptonReduction]: Number of co-enabled transitions 192 [2021-03-26 03:35:45,470 INFO L154 LiptonReduction]: Checked pairs total: 1 [2021-03-26 03:35:45,470 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 03:35:45,470 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 81 [2021-03-26 03:35:45,471 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 125 transitions, 1362 flow [2021-03-26 03:35:45,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:45,472 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:45,472 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-26 03:35:45,472 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:45,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:45,472 INFO L82 PathProgramCache]: Analyzing trace with hash 914596832, now seen corresponding path program 1 times [2021-03-26 03:35:45,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:45,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105290850] [2021-03-26 03:35:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:45,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,519 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 03:35:45,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105290850] [2021-03-26 03:35:45,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:45,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:45,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335992839] [2021-03-26 03:35:45,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:45,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:45,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:45,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:45,521 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2021-03-26 03:35:45,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 125 transitions, 1362 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:45,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2021-03-26 03:35:45,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:45,694 INFO L129 PetriNetUnfolder]: 100/414 cut-off events. [2021-03-26 03:35:45,695 INFO L130 PetriNetUnfolder]: For 4033/4033 co-relation queries the response was YES. [2021-03-26 03:35:45,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2610 conditions, 414 events. 100/414 cut-off events. For 4033/4033 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2855 event pairs, 32 based on Foata normal form. 1/415 useless extension candidates. Maximal degree in co-relation 2508. Up to 320 conditions per place. [2021-03-26 03:35:45,699 INFO L132 encePairwiseOnDemand]: 34/49 looper letters, 100 selfloop transitions, 22 changer transitions 10/134 dead transitions. [2021-03-26 03:35:45,699 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 134 transitions, 1694 flow [2021-03-26 03:35:45,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-26 03:35:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-26 03:35:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 143 transitions. [2021-03-26 03:35:45,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29183673469387755 [2021-03-26 03:35:45,700 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 143 transitions. [2021-03-26 03:35:45,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 143 transitions. [2021-03-26 03:35:45,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:45,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 143 transitions. [2021-03-26 03:35:45,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 14.3) internal successors, (143), 10 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,702 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 49.0) internal successors, (539), 11 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,702 INFO L185 Difference]: Start difference. First operand has 105 places, 125 transitions, 1362 flow. Second operand 10 states and 143 transitions. [2021-03-26 03:35:45,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 134 transitions, 1694 flow [2021-03-26 03:35:45,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 134 transitions, 1587 flow, removed 39 selfloop flow, removed 6 redundant places. [2021-03-26 03:35:45,726 INFO L241 Difference]: Finished difference. Result has 110 places, 119 transitions, 1218 flow [2021-03-26 03:35:45,726 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=1255, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1218, PETRI_PLACES=110, PETRI_TRANSITIONS=119} [2021-03-26 03:35:45,726 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 85 predicate places. [2021-03-26 03:35:45,726 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:45,726 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 119 transitions, 1218 flow [2021-03-26 03:35:45,727 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 119 transitions, 1218 flow [2021-03-26 03:35:45,728 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 119 transitions, 1218 flow [2021-03-26 03:35:45,756 INFO L129 PetriNetUnfolder]: 44/308 cut-off events. [2021-03-26 03:35:45,756 INFO L130 PetriNetUnfolder]: For 1927/1939 co-relation queries the response was YES. [2021-03-26 03:35:45,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 308 events. 44/308 cut-off events. For 1927/1939 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2288 event pairs, 3 based on Foata normal form. 6/310 useless extension candidates. Maximal degree in co-relation 1495. Up to 82 conditions per place. [2021-03-26 03:35:45,760 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-26 03:35:45,784 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 03:35:45,785 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 03:35:45,785 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59 [2021-03-26 03:35:45,785 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 119 transitions, 1224 flow [2021-03-26 03:35:45,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,786 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:45,786 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:45,786 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-26 03:35:45,786 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:45,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:45,786 INFO L82 PathProgramCache]: Analyzing trace with hash 508384943, now seen corresponding path program 1 times [2021-03-26 03:35:45,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:45,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788321376] [2021-03-26 03:35:45,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:45,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:45,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:45,832 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 03:35:45,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788321376] [2021-03-26 03:35:45,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:45,832 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:45,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948260970] [2021-03-26 03:35:45,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:45,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:45,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:45,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2021-03-26 03:35:45,834 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 119 transitions, 1224 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:45,834 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:45,834 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2021-03-26 03:35:45,834 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:46,084 INFO L129 PetriNetUnfolder]: 99/401 cut-off events. [2021-03-26 03:35:46,084 INFO L130 PetriNetUnfolder]: For 2946/2946 co-relation queries the response was YES. [2021-03-26 03:35:46,085 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 401 events. 99/401 cut-off events. For 2946/2946 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2704 event pairs, 28 based on Foata normal form. 2/403 useless extension candidates. Maximal degree in co-relation 2302. Up to 278 conditions per place. [2021-03-26 03:35:46,087 INFO L132 encePairwiseOnDemand]: 36/50 looper letters, 93 selfloop transitions, 17 changer transitions 27/139 dead transitions. [2021-03-26 03:35:46,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 139 transitions, 1684 flow [2021-03-26 03:35:46,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 174 transitions. [2021-03-26 03:35:46,089 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29 [2021-03-26 03:35:46,089 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 174 transitions. [2021-03-26 03:35:46,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 174 transitions. [2021-03-26 03:35:46,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:46,089 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 174 transitions. [2021-03-26 03:35:46,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.5) internal successors, (174), 12 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 50.0) internal successors, (650), 13 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,091 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 50.0) internal successors, (650), 13 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,091 INFO L185 Difference]: Start difference. First operand has 104 places, 119 transitions, 1224 flow. Second operand 12 states and 174 transitions. [2021-03-26 03:35:46,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 139 transitions, 1684 flow [2021-03-26 03:35:46,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 139 transitions, 1628 flow, removed 17 selfloop flow, removed 5 redundant places. [2021-03-26 03:35:46,109 INFO L241 Difference]: Finished difference. Result has 113 places, 106 transitions, 1064 flow [2021-03-26 03:35:46,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1064, PETRI_PLACES=113, PETRI_TRANSITIONS=106} [2021-03-26 03:35:46,109 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 88 predicate places. [2021-03-26 03:35:46,109 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:46,109 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 106 transitions, 1064 flow [2021-03-26 03:35:46,110 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 106 transitions, 1064 flow [2021-03-26 03:35:46,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 106 transitions, 1064 flow [2021-03-26 03:35:46,134 INFO L129 PetriNetUnfolder]: 42/277 cut-off events. [2021-03-26 03:35:46,134 INFO L130 PetriNetUnfolder]: For 1827/1837 co-relation queries the response was YES. [2021-03-26 03:35:46,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1398 conditions, 277 events. 42/277 cut-off events. For 1827/1837 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1966 event pairs, 2 based on Foata normal form. 6/280 useless extension candidates. Maximal degree in co-relation 1350. Up to 72 conditions per place. [2021-03-26 03:35:46,138 INFO L142 LiptonReduction]: Number of co-enabled transitions 174 [2021-03-26 03:35:46,141 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:46,141 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:46,142 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 33 [2021-03-26 03:35:46,142 INFO L480 AbstractCegarLoop]: Abstraction has has 101 places, 106 transitions, 1064 flow [2021-03-26 03:35:46,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,142 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:46,142 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:46,143 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-26 03:35:46,143 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:46,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:46,143 INFO L82 PathProgramCache]: Analyzing trace with hash -76758146, now seen corresponding path program 1 times [2021-03-26 03:35:46,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:46,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813880378] [2021-03-26 03:35:46,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:46,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:46,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,175 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,200 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 03:35:46,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813880378] [2021-03-26 03:35:46,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:46,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 03:35:46,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807678063] [2021-03-26 03:35:46,201 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 03:35:46,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:46,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 03:35:46,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-03-26 03:35:46,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2021-03-26 03:35:46,202 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 106 transitions, 1064 flow. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,202 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:46,202 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2021-03-26 03:35:46,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:46,402 INFO L129 PetriNetUnfolder]: 99/400 cut-off events. [2021-03-26 03:35:46,402 INFO L130 PetriNetUnfolder]: For 3087/3087 co-relation queries the response was YES. [2021-03-26 03:35:46,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2361 conditions, 400 events. 99/400 cut-off events. For 3087/3087 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2700 event pairs, 28 based on Foata normal form. 1/401 useless extension candidates. Maximal degree in co-relation 2252. Up to 261 conditions per place. [2021-03-26 03:35:46,407 INFO L132 encePairwiseOnDemand]: 28/50 looper letters, 91 selfloop transitions, 37 changer transitions 9/139 dead transitions. [2021-03-26 03:35:46,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 139 transitions, 1667 flow [2021-03-26 03:35:46,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:46,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:46,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 176 transitions. [2021-03-26 03:35:46,408 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.29333333333333333 [2021-03-26 03:35:46,408 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 176 transitions. [2021-03-26 03:35:46,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 176 transitions. [2021-03-26 03:35:46,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:46,409 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 176 transitions. [2021-03-26 03:35:46,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,410 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 50.0) internal successors, (650), 13 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,410 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 50.0) internal successors, (650), 13 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,410 INFO L185 Difference]: Start difference. First operand has 101 places, 106 transitions, 1064 flow. Second operand 12 states and 176 transitions. [2021-03-26 03:35:46,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 139 transitions, 1667 flow [2021-03-26 03:35:46,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 139 transitions, 1561 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-26 03:35:46,428 INFO L241 Difference]: Finished difference. Result has 105 places, 115 transitions, 1205 flow [2021-03-26 03:35:46,429 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1205, PETRI_PLACES=105, PETRI_TRANSITIONS=115} [2021-03-26 03:35:46,429 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 80 predicate places. [2021-03-26 03:35:46,429 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:46,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 115 transitions, 1205 flow [2021-03-26 03:35:46,429 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 115 transitions, 1205 flow [2021-03-26 03:35:46,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 115 transitions, 1205 flow [2021-03-26 03:35:46,456 INFO L129 PetriNetUnfolder]: 45/300 cut-off events. [2021-03-26 03:35:46,456 INFO L130 PetriNetUnfolder]: For 1963/1975 co-relation queries the response was YES. [2021-03-26 03:35:46,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 300 events. 45/300 cut-off events. For 1963/1975 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2210 event pairs, 2 based on Foata normal form. 5/299 useless extension candidates. Maximal degree in co-relation 1473. Up to 82 conditions per place. [2021-03-26 03:35:46,460 INFO L142 LiptonReduction]: Number of co-enabled transitions 182 [2021-03-26 03:35:46,464 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:46,464 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:46,464 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 35 [2021-03-26 03:35:46,465 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 115 transitions, 1205 flow [2021-03-26 03:35:46,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,465 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:46,465 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:46,465 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-26 03:35:46,465 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:46,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:46,465 INFO L82 PathProgramCache]: Analyzing trace with hash -211237484, now seen corresponding path program 1 times [2021-03-26 03:35:46,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:46,466 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455821580] [2021-03-26 03:35:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:46,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:46,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455821580] [2021-03-26 03:35:46,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:46,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 03:35:46,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975809080] [2021-03-26 03:35:46,521 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 03:35:46,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:46,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 03:35:46,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-03-26 03:35:46,522 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2021-03-26 03:35:46,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 115 transitions, 1205 flow. Second operand has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:46,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2021-03-26 03:35:46,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:46,705 INFO L129 PetriNetUnfolder]: 97/398 cut-off events. [2021-03-26 03:35:46,705 INFO L130 PetriNetUnfolder]: For 2934/2934 co-relation queries the response was YES. [2021-03-26 03:35:46,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2322 conditions, 398 events. 97/398 cut-off events. For 2934/2934 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2687 event pairs, 26 based on Foata normal form. 1/399 useless extension candidates. Maximal degree in co-relation 2252. Up to 278 conditions per place. [2021-03-26 03:35:46,710 INFO L132 encePairwiseOnDemand]: 30/50 looper letters, 87 selfloop transitions, 35 changer transitions 4/128 dead transitions. [2021-03-26 03:35:46,710 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 128 transitions, 1575 flow [2021-03-26 03:35:46,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:46,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:46,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 155 transitions. [2021-03-26 03:35:46,712 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2818181818181818 [2021-03-26 03:35:46,712 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 155 transitions. [2021-03-26 03:35:46,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 155 transitions. [2021-03-26 03:35:46,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:46,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 155 transitions. [2021-03-26 03:35:46,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 50.0) internal successors, (600), 12 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,714 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 50.0) internal successors, (600), 12 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,714 INFO L185 Difference]: Start difference. First operand has 103 places, 115 transitions, 1205 flow. Second operand 11 states and 155 transitions. [2021-03-26 03:35:46,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 128 transitions, 1575 flow [2021-03-26 03:35:46,729 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 128 transitions, 1548 flow, removed 4 selfloop flow, removed 4 redundant places. [2021-03-26 03:35:46,732 INFO L241 Difference]: Finished difference. Result has 111 places, 116 transitions, 1270 flow [2021-03-26 03:35:46,732 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1270, PETRI_PLACES=111, PETRI_TRANSITIONS=116} [2021-03-26 03:35:46,733 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 86 predicate places. [2021-03-26 03:35:46,733 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:46,733 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 116 transitions, 1270 flow [2021-03-26 03:35:46,733 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 116 transitions, 1270 flow [2021-03-26 03:35:46,734 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 109 places, 116 transitions, 1270 flow [2021-03-26 03:35:46,762 INFO L129 PetriNetUnfolder]: 45/304 cut-off events. [2021-03-26 03:35:46,762 INFO L130 PetriNetUnfolder]: For 2028/2042 co-relation queries the response was YES. [2021-03-26 03:35:46,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1567 conditions, 304 events. 45/304 cut-off events. For 2028/2042 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2281 event pairs, 2 based on Foata normal form. 6/303 useless extension candidates. Maximal degree in co-relation 1520. Up to 79 conditions per place. [2021-03-26 03:35:46,765 INFO L142 LiptonReduction]: Number of co-enabled transitions 180 [2021-03-26 03:35:46,770 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:46,770 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:46,770 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 37 [2021-03-26 03:35:46,772 INFO L480 AbstractCegarLoop]: Abstraction has has 109 places, 116 transitions, 1270 flow [2021-03-26 03:35:46,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 10.2) internal successors, (102), 10 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,772 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:46,772 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:46,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-26 03:35:46,772 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:46,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:46,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1018749566, now seen corresponding path program 2 times [2021-03-26 03:35:46,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:46,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139473360] [2021-03-26 03:35:46,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:46,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:46,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:46,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:46,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139473360] [2021-03-26 03:35:46,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:46,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:46,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935963650] [2021-03-26 03:35:46,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:46,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:46,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:46,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:46,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2021-03-26 03:35:46,825 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 116 transitions, 1270 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:46,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:46,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2021-03-26 03:35:46,825 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:47,051 INFO L129 PetriNetUnfolder]: 95/404 cut-off events. [2021-03-26 03:35:47,051 INFO L130 PetriNetUnfolder]: For 3078/3078 co-relation queries the response was YES. [2021-03-26 03:35:47,053 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2401 conditions, 404 events. 95/404 cut-off events. For 3078/3078 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2792 event pairs, 27 based on Foata normal form. 4/408 useless extension candidates. Maximal degree in co-relation 2309. Up to 252 conditions per place. [2021-03-26 03:35:47,055 INFO L132 encePairwiseOnDemand]: 28/50 looper letters, 81 selfloop transitions, 22 changer transitions 36/141 dead transitions. [2021-03-26 03:35:47,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 141 transitions, 1802 flow [2021-03-26 03:35:47,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 03:35:47,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 03:35:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 208 transitions. [2021-03-26 03:35:47,056 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2773333333333333 [2021-03-26 03:35:47,056 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 208 transitions. [2021-03-26 03:35:47,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 208 transitions. [2021-03-26 03:35:47,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:47,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 208 transitions. [2021-03-26 03:35:47,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.866666666666667) internal successors, (208), 15 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 50.0) internal successors, (800), 16 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,058 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 50.0) internal successors, (800), 16 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,058 INFO L185 Difference]: Start difference. First operand has 109 places, 116 transitions, 1270 flow. Second operand 15 states and 208 transitions. [2021-03-26 03:35:47,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 141 transitions, 1802 flow [2021-03-26 03:35:47,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 141 transitions, 1740 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-26 03:35:47,074 INFO L241 Difference]: Finished difference. Result has 120 places, 96 transitions, 992 flow [2021-03-26 03:35:47,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=1214, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=992, PETRI_PLACES=120, PETRI_TRANSITIONS=96} [2021-03-26 03:35:47,074 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 95 predicate places. [2021-03-26 03:35:47,074 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:47,075 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 96 transitions, 992 flow [2021-03-26 03:35:47,075 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 96 transitions, 992 flow [2021-03-26 03:35:47,076 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 96 transitions, 992 flow [2021-03-26 03:35:47,095 INFO L129 PetriNetUnfolder]: 38/255 cut-off events. [2021-03-26 03:35:47,096 INFO L130 PetriNetUnfolder]: For 1690/1698 co-relation queries the response was YES. [2021-03-26 03:35:47,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1296 conditions, 255 events. 38/255 cut-off events. For 1690/1698 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1758 event pairs, 2 based on Foata normal form. 4/253 useless extension candidates. Maximal degree in co-relation 1246. Up to 69 conditions per place. [2021-03-26 03:35:47,098 INFO L142 LiptonReduction]: Number of co-enabled transitions 160 [2021-03-26 03:35:47,102 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:47,103 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:47,103 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 29 [2021-03-26 03:35:47,103 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 96 transitions, 992 flow [2021-03-26 03:35:47,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,103 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:47,104 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:47,104 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-26 03:35:47,104 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:47,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:47,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1153228904, now seen corresponding path program 2 times [2021-03-26 03:35:47,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:47,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404512862] [2021-03-26 03:35:47,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:47,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:47,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,161 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 03:35:47,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404512862] [2021-03-26 03:35:47,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:47,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:47,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274875348] [2021-03-26 03:35:47,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:47,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:47,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:47,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:47,163 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2021-03-26 03:35:47,163 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 96 transitions, 992 flow. Second operand has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,163 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:47,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2021-03-26 03:35:47,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:47,317 INFO L129 PetriNetUnfolder]: 81/330 cut-off events. [2021-03-26 03:35:47,318 INFO L130 PetriNetUnfolder]: For 2610/2610 co-relation queries the response was YES. [2021-03-26 03:35:47,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1956 conditions, 330 events. 81/330 cut-off events. For 2610/2610 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2047 event pairs, 26 based on Foata normal form. 2/332 useless extension candidates. Maximal degree in co-relation 1868. Up to 245 conditions per place. [2021-03-26 03:35:47,321 INFO L132 encePairwiseOnDemand]: 33/50 looper letters, 71 selfloop transitions, 11 changer transitions 20/104 dead transitions. [2021-03-26 03:35:47,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 104 transitions, 1270 flow [2021-03-26 03:35:47,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:47,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 148 transitions. [2021-03-26 03:35:47,322 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2690909090909091 [2021-03-26 03:35:47,322 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 148 transitions. [2021-03-26 03:35:47,322 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 148 transitions. [2021-03-26 03:35:47,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:47,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 148 transitions. [2021-03-26 03:35:47,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.454545454545455) internal successors, (148), 11 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 03:35:47,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 50.0) internal successors, (600), 12 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,324 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 50.0) internal successors, (600), 12 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,324 INFO L185 Difference]: Start difference. First operand has 110 places, 96 transitions, 992 flow. Second operand 11 states and 148 transitions. [2021-03-26 03:35:47,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 104 transitions, 1270 flow [2021-03-26 03:35:47,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 104 transitions, 1115 flow, removed 28 selfloop flow, removed 22 redundant places. [2021-03-26 03:35:47,339 INFO L241 Difference]: Finished difference. Result has 100 places, 80 transitions, 716 flow [2021-03-26 03:35:47,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=855, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=716, PETRI_PLACES=100, PETRI_TRANSITIONS=80} [2021-03-26 03:35:47,339 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 75 predicate places. [2021-03-26 03:35:47,339 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:47,339 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 80 transitions, 716 flow [2021-03-26 03:35:47,339 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 80 transitions, 716 flow [2021-03-26 03:35:47,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 80 transitions, 716 flow [2021-03-26 03:35:47,359 INFO L129 PetriNetUnfolder]: 36/230 cut-off events. [2021-03-26 03:35:47,359 INFO L130 PetriNetUnfolder]: For 1247/1254 co-relation queries the response was YES. [2021-03-26 03:35:47,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1075 conditions, 230 events. 36/230 cut-off events. For 1247/1254 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1503 event pairs, 3 based on Foata normal form. 3/228 useless extension candidates. Maximal degree in co-relation 1036. Up to 68 conditions per place. [2021-03-26 03:35:47,362 INFO L142 LiptonReduction]: Number of co-enabled transitions 156 [2021-03-26 03:35:47,404 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:47,404 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 03:35:47,404 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 65 [2021-03-26 03:35:47,405 INFO L480 AbstractCegarLoop]: Abstraction has has 78 places, 78 transitions, 696 flow [2021-03-26 03:35:47,405 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.333333333333334) internal successors, (93), 9 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,405 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:47,405 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:47,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-26 03:35:47,405 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:47,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:47,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1230463126, now seen corresponding path program 1 times [2021-03-26 03:35:47,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:47,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766187893] [2021-03-26 03:35:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:47,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,434 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,447 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 03:35:47,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766187893] [2021-03-26 03:35:47,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:47,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:47,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437778755] [2021-03-26 03:35:47,447 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:47,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:47,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:47,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:47,448 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 52 [2021-03-26 03:35:47,449 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 78 transitions, 696 flow. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,449 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:47,449 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 52 [2021-03-26 03:35:47,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:47,642 INFO L129 PetriNetUnfolder]: 90/370 cut-off events. [2021-03-26 03:35:47,643 INFO L130 PetriNetUnfolder]: For 2450/2451 co-relation queries the response was YES. [2021-03-26 03:35:47,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2021 conditions, 370 events. 90/370 cut-off events. For 2450/2451 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2514 event pairs, 6 based on Foata normal form. 6/376 useless extension candidates. Maximal degree in co-relation 1979. Up to 159 conditions per place. [2021-03-26 03:35:47,646 INFO L132 encePairwiseOnDemand]: 37/52 looper letters, 80 selfloop transitions, 40 changer transitions 34/157 dead transitions. [2021-03-26 03:35:47,647 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 157 transitions, 1720 flow [2021-03-26 03:35:47,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 03:35:47,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 03:35:47,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 200 transitions. [2021-03-26 03:35:47,648 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.2958579881656805 [2021-03-26 03:35:47,648 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 200 transitions. [2021-03-26 03:35:47,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 200 transitions. [2021-03-26 03:35:47,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:47,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 200 transitions. [2021-03-26 03:35:47,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 15.384615384615385) internal successors, (200), 13 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,650 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,650 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 52.0) internal successors, (728), 14 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,650 INFO L185 Difference]: Start difference. First operand has 78 places, 78 transitions, 696 flow. Second operand 13 states and 200 transitions. [2021-03-26 03:35:47,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 157 transitions, 1720 flow [2021-03-26 03:35:47,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 157 transitions, 1504 flow, removed 72 selfloop flow, removed 14 redundant places. [2021-03-26 03:35:47,664 INFO L241 Difference]: Finished difference. Result has 81 places, 91 transitions, 882 flow [2021-03-26 03:35:47,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=52, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=882, PETRI_PLACES=81, PETRI_TRANSITIONS=91} [2021-03-26 03:35:47,664 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 56 predicate places. [2021-03-26 03:35:47,664 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:47,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 91 transitions, 882 flow [2021-03-26 03:35:47,665 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 91 transitions, 882 flow [2021-03-26 03:35:47,665 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 91 transitions, 882 flow [2021-03-26 03:35:47,684 INFO L129 PetriNetUnfolder]: 38/251 cut-off events. [2021-03-26 03:35:47,684 INFO L130 PetriNetUnfolder]: For 1594/1607 co-relation queries the response was YES. [2021-03-26 03:35:47,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1211 conditions, 251 events. 38/251 cut-off events. For 1594/1607 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 1720 event pairs, 2 based on Foata normal form. 4/249 useless extension candidates. Maximal degree in co-relation 1177. Up to 75 conditions per place. [2021-03-26 03:35:47,686 INFO L142 LiptonReduction]: Number of co-enabled transitions 148 [2021-03-26 03:35:47,735 INFO L154 LiptonReduction]: Checked pairs total: 10 [2021-03-26 03:35:47,735 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 03:35:47,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 71 [2021-03-26 03:35:47,736 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 91 transitions, 900 flow [2021-03-26 03:35:47,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 9 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:47,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:47,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-26 03:35:47,736 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:47,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:47,737 INFO L82 PathProgramCache]: Analyzing trace with hash 2112518914, now seen corresponding path program 1 times [2021-03-26 03:35:47,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:47,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706142793] [2021-03-26 03:35:47,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:47,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:47,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:47,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:47,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706142793] [2021-03-26 03:35:47,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:47,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-26 03:35:47,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922219213] [2021-03-26 03:35:47,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 03:35:47,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:47,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 03:35:47,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-03-26 03:35:47,801 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 55 [2021-03-26 03:35:47,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 91 transitions, 900 flow. Second operand has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:47,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:47,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 55 [2021-03-26 03:35:47,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:48,017 INFO L129 PetriNetUnfolder]: 88/352 cut-off events. [2021-03-26 03:35:48,017 INFO L130 PetriNetUnfolder]: For 3030/3030 co-relation queries the response was YES. [2021-03-26 03:35:48,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2081 conditions, 352 events. 88/352 cut-off events. For 3030/3030 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2296 event pairs, 17 based on Foata normal form. 1/353 useless extension candidates. Maximal degree in co-relation 1976. Up to 171 conditions per place. [2021-03-26 03:35:48,021 INFO L132 encePairwiseOnDemand]: 37/55 looper letters, 73 selfloop transitions, 41 changer transitions 19/135 dead transitions. [2021-03-26 03:35:48,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 135 transitions, 1713 flow [2021-03-26 03:35:48,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-26 03:35:48,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-26 03:35:48,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 209 transitions. [2021-03-26 03:35:48,022 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25333333333333335 [2021-03-26 03:35:48,022 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 209 transitions. [2021-03-26 03:35:48,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 209 transitions. [2021-03-26 03:35:48,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:48,023 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 209 transitions. [2021-03-26 03:35:48,024 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 13.933333333333334) internal successors, (209), 15 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 55.0) internal successors, (880), 16 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,026 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 55.0) internal successors, (880), 16 states have internal predecessors, (880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,026 INFO L185 Difference]: Start difference. First operand has 76 places, 91 transitions, 900 flow. Second operand 15 states and 209 transitions. [2021-03-26 03:35:48,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 135 transitions, 1713 flow [2021-03-26 03:35:48,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 135 transitions, 1400 flow, removed 133 selfloop flow, removed 7 redundant places. [2021-03-26 03:35:48,056 INFO L241 Difference]: Finished difference. Result has 89 places, 98 transitions, 946 flow [2021-03-26 03:35:48,056 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=55, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=946, PETRI_PLACES=89, PETRI_TRANSITIONS=98} [2021-03-26 03:35:48,056 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 64 predicate places. [2021-03-26 03:35:48,056 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:48,056 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 98 transitions, 946 flow [2021-03-26 03:35:48,057 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 98 transitions, 946 flow [2021-03-26 03:35:48,057 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 98 transitions, 946 flow [2021-03-26 03:35:48,077 INFO L129 PetriNetUnfolder]: 35/253 cut-off events. [2021-03-26 03:35:48,077 INFO L130 PetriNetUnfolder]: For 1234/1244 co-relation queries the response was YES. [2021-03-26 03:35:48,078 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 253 events. 35/253 cut-off events. For 1234/1244 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1801 event pairs, 3 based on Foata normal form. 4/251 useless extension candidates. Maximal degree in co-relation 1103. Up to 52 conditions per place. [2021-03-26 03:35:48,080 INFO L142 LiptonReduction]: Number of co-enabled transitions 142 [2021-03-26 03:35:48,133 INFO L154 LiptonReduction]: Checked pairs total: 4 [2021-03-26 03:35:48,133 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 03:35:48,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 77 [2021-03-26 03:35:48,134 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 98 transitions, 947 flow [2021-03-26 03:35:48,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 10.272727272727273) internal successors, (113), 11 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:48,134 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:48,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-26 03:35:48,135 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:48,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:48,135 INFO L82 PathProgramCache]: Analyzing trace with hash -482641558, now seen corresponding path program 1 times [2021-03-26 03:35:48,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:48,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615865638] [2021-03-26 03:35:48,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:48,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,181 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,201 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 03:35:48,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615865638] [2021-03-26 03:35:48,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:48,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:48,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741287010] [2021-03-26 03:35:48,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:48,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:48,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:48,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:48,203 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 58 [2021-03-26 03:35:48,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 98 transitions, 947 flow. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:48,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 58 [2021-03-26 03:35:48,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:48,427 INFO L129 PetriNetUnfolder]: 86/382 cut-off events. [2021-03-26 03:35:48,427 INFO L130 PetriNetUnfolder]: For 2336/2336 co-relation queries the response was YES. [2021-03-26 03:35:48,429 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2084 conditions, 382 events. 86/382 cut-off events. For 2336/2336 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2701 event pairs, 21 based on Foata normal form. 3/385 useless extension candidates. Maximal degree in co-relation 2009. Up to 198 conditions per place. [2021-03-26 03:35:48,430 INFO L132 encePairwiseOnDemand]: 37/58 looper letters, 74 selfloop transitions, 35 changer transitions 26/137 dead transitions. [2021-03-26 03:35:48,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 137 transitions, 1624 flow [2021-03-26 03:35:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:48,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2021-03-26 03:35:48,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.257183908045977 [2021-03-26 03:35:48,432 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 179 transitions. [2021-03-26 03:35:48,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 179 transitions. [2021-03-26 03:35:48,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:48,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 179 transitions. [2021-03-26 03:35:48,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 12 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 58.0) internal successors, (754), 13 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,434 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 58.0) internal successors, (754), 13 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,434 INFO L185 Difference]: Start difference. First operand has 86 places, 98 transitions, 947 flow. Second operand 12 states and 179 transitions. [2021-03-26 03:35:48,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 137 transitions, 1624 flow [2021-03-26 03:35:48,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 137 transitions, 1566 flow, removed 21 selfloop flow, removed 5 redundant places. [2021-03-26 03:35:48,450 INFO L241 Difference]: Finished difference. Result has 99 places, 101 transitions, 1083 flow [2021-03-26 03:35:48,450 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1083, PETRI_PLACES=99, PETRI_TRANSITIONS=101} [2021-03-26 03:35:48,450 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 74 predicate places. [2021-03-26 03:35:48,451 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:48,451 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 101 transitions, 1083 flow [2021-03-26 03:35:48,451 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 101 transitions, 1083 flow [2021-03-26 03:35:48,452 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 96 places, 101 transitions, 1083 flow [2021-03-26 03:35:48,470 INFO L129 PetriNetUnfolder]: 30/252 cut-off events. [2021-03-26 03:35:48,470 INFO L130 PetriNetUnfolder]: For 1423/1430 co-relation queries the response was YES. [2021-03-26 03:35:48,471 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224 conditions, 252 events. 30/252 cut-off events. For 1423/1430 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1866 event pairs, 2 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 1183. Up to 49 conditions per place. [2021-03-26 03:35:48,472 INFO L142 LiptonReduction]: Number of co-enabled transitions 132 [2021-03-26 03:35:48,477 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:48,477 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:48,477 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 26 [2021-03-26 03:35:48,477 INFO L480 AbstractCegarLoop]: Abstraction has has 96 places, 101 transitions, 1083 flow [2021-03-26 03:35:48,478 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,478 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:48,478 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:48,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-26 03:35:48,478 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:48,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1400627448, now seen corresponding path program 1 times [2021-03-26 03:35:48,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:48,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897146973] [2021-03-26 03:35:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:48,495 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:48,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897146973] [2021-03-26 03:35:48,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:48,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 03:35:48,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476165403] [2021-03-26 03:35:48,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 03:35:48,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:48,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 03:35:48,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-26 03:35:48,525 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 58 [2021-03-26 03:35:48,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 101 transitions, 1083 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:48,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 58 [2021-03-26 03:35:48,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:48,717 INFO L129 PetriNetUnfolder]: 69/324 cut-off events. [2021-03-26 03:35:48,717 INFO L130 PetriNetUnfolder]: For 2262/2262 co-relation queries the response was YES. [2021-03-26 03:35:48,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1855 conditions, 324 events. 69/324 cut-off events. For 2262/2262 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2200 event pairs, 11 based on Foata normal form. 2/326 useless extension candidates. Maximal degree in co-relation 1779. Up to 91 conditions per place. [2021-03-26 03:35:48,720 INFO L132 encePairwiseOnDemand]: 38/58 looper letters, 55 selfloop transitions, 40 changer transitions 38/135 dead transitions. [2021-03-26 03:35:48,720 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 135 transitions, 1683 flow [2021-03-26 03:35:48,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-26 03:35:48,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-26 03:35:48,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 191 transitions. [2021-03-26 03:35:48,724 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.253315649867374 [2021-03-26 03:35:48,725 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 191 transitions. [2021-03-26 03:35:48,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 191 transitions. [2021-03-26 03:35:48,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:48,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 191 transitions. [2021-03-26 03:35:48,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 14.692307692307692) internal successors, (191), 13 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,727 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 58.0) internal successors, (812), 14 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,727 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 58.0) internal successors, (812), 14 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,727 INFO L185 Difference]: Start difference. First operand has 96 places, 101 transitions, 1083 flow. Second operand 13 states and 191 transitions. [2021-03-26 03:35:48,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 135 transitions, 1683 flow [2021-03-26 03:35:48,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 135 transitions, 1579 flow, removed 25 selfloop flow, removed 7 redundant places. [2021-03-26 03:35:48,741 INFO L241 Difference]: Finished difference. Result has 105 places, 85 transitions, 955 flow [2021-03-26 03:35:48,741 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=955, PETRI_PLACES=105, PETRI_TRANSITIONS=85} [2021-03-26 03:35:48,741 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 80 predicate places. [2021-03-26 03:35:48,741 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:48,741 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 85 transitions, 955 flow [2021-03-26 03:35:48,742 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 85 transitions, 955 flow [2021-03-26 03:35:48,742 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 85 transitions, 955 flow [2021-03-26 03:35:48,756 INFO L129 PetriNetUnfolder]: 21/191 cut-off events. [2021-03-26 03:35:48,757 INFO L130 PetriNetUnfolder]: For 1346/1354 co-relation queries the response was YES. [2021-03-26 03:35:48,757 INFO L84 FinitePrefix]: Finished finitePrefix Result has 996 conditions, 191 events. 21/191 cut-off events. For 1346/1354 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1265 event pairs, 2 based on Foata normal form. 2/188 useless extension candidates. Maximal degree in co-relation 955. Up to 44 conditions per place. [2021-03-26 03:35:48,758 INFO L142 LiptonReduction]: Number of co-enabled transitions 104 [2021-03-26 03:35:48,781 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:48,781 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 03:35:48,781 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-03-26 03:35:48,782 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 85 transitions, 962 flow [2021-03-26 03:35:48,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,782 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:48,783 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:48,783 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-26 03:35:48,783 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:48,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:48,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1911502562, now seen corresponding path program 1 times [2021-03-26 03:35:48,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:48,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667337538] [2021-03-26 03:35:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:48,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,815 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,827 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,832 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:48,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:48,842 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 03:35:48,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667337538] [2021-03-26 03:35:48,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:48,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 03:35:48,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819640829] [2021-03-26 03:35:48,842 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 03:35:48,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:48,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 03:35:48,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-26 03:35:48,843 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 59 [2021-03-26 03:35:48,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 85 transitions, 962 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:48,844 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:48,844 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 59 [2021-03-26 03:35:48,844 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:49,023 INFO L129 PetriNetUnfolder]: 49/251 cut-off events. [2021-03-26 03:35:49,024 INFO L130 PetriNetUnfolder]: For 2094/2094 co-relation queries the response was YES. [2021-03-26 03:35:49,025 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1537 conditions, 251 events. 49/251 cut-off events. For 2094/2094 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1570 event pairs, 12 based on Foata normal form. 2/253 useless extension candidates. Maximal degree in co-relation 1476. Up to 137 conditions per place. [2021-03-26 03:35:49,026 INFO L132 encePairwiseOnDemand]: 40/59 looper letters, 55 selfloop transitions, 34 changer transitions 9/100 dead transitions. [2021-03-26 03:35:49,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 100 transitions, 1342 flow [2021-03-26 03:35:49,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-26 03:35:49,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-03-26 03:35:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 186 transitions. [2021-03-26 03:35:49,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22518159806295399 [2021-03-26 03:35:49,029 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 186 transitions. [2021-03-26 03:35:49,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 186 transitions. [2021-03-26 03:35:49,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:49,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 186 transitions. [2021-03-26 03:35:49,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 13.285714285714286) internal successors, (186), 14 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 59.0) internal successors, (885), 15 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,031 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 59.0) internal successors, (885), 15 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,031 INFO L185 Difference]: Start difference. First operand has 100 places, 85 transitions, 962 flow. Second operand 14 states and 186 transitions. [2021-03-26 03:35:49,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 100 transitions, 1342 flow [2021-03-26 03:35:49,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 100 transitions, 1235 flow, removed 29 selfloop flow, removed 10 redundant places. [2021-03-26 03:35:49,044 INFO L241 Difference]: Finished difference. Result has 106 places, 85 transitions, 956 flow [2021-03-26 03:35:49,044 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=956, PETRI_PLACES=106, PETRI_TRANSITIONS=85} [2021-03-26 03:35:49,044 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 81 predicate places. [2021-03-26 03:35:49,045 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:49,045 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 106 places, 85 transitions, 956 flow [2021-03-26 03:35:49,047 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 85 transitions, 956 flow [2021-03-26 03:35:49,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 85 transitions, 956 flow [2021-03-26 03:35:49,062 INFO L129 PetriNetUnfolder]: 21/193 cut-off events. [2021-03-26 03:35:49,062 INFO L130 PetriNetUnfolder]: For 1367/1372 co-relation queries the response was YES. [2021-03-26 03:35:49,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 193 events. 21/193 cut-off events. For 1367/1372 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1291 event pairs, 3 based on Foata normal form. 3/191 useless extension candidates. Maximal degree in co-relation 976. Up to 42 conditions per place. [2021-03-26 03:35:49,064 INFO L142 LiptonReduction]: Number of co-enabled transitions 100 [2021-03-26 03:35:49,067 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:49,067 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:49,067 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22 [2021-03-26 03:35:49,069 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 85 transitions, 956 flow [2021-03-26 03:35:49,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:49,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:49,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-26 03:35:49,069 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:49,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1149897700, now seen corresponding path program 1 times [2021-03-26 03:35:49,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:49,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730352500] [2021-03-26 03:35:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:49,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:49,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,102 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 03:35:49,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730352500] [2021-03-26 03:35:49,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:49,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-03-26 03:35:49,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718612330] [2021-03-26 03:35:49,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 03:35:49,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:49,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 03:35:49,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-03-26 03:35:49,111 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 59 [2021-03-26 03:35:49,111 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 85 transitions, 956 flow. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,111 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:49,111 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 59 [2021-03-26 03:35:49,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:49,238 INFO L129 PetriNetUnfolder]: 44/246 cut-off events. [2021-03-26 03:35:49,238 INFO L130 PetriNetUnfolder]: For 2068/2072 co-relation queries the response was YES. [2021-03-26 03:35:49,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 246 events. 44/246 cut-off events. For 2068/2072 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1587 event pairs, 14 based on Foata normal form. 7/253 useless extension candidates. Maximal degree in co-relation 1446. Up to 136 conditions per place. [2021-03-26 03:35:49,240 INFO L132 encePairwiseOnDemand]: 43/59 looper letters, 58 selfloop transitions, 22 changer transitions 31/114 dead transitions. [2021-03-26 03:35:49,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 114 transitions, 1536 flow [2021-03-26 03:35:49,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:49,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 166 transitions. [2021-03-26 03:35:49,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.25577812018489987 [2021-03-26 03:35:49,241 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 166 transitions. [2021-03-26 03:35:49,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 166 transitions. [2021-03-26 03:35:49,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:49,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 166 transitions. [2021-03-26 03:35:49,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 15.090909090909092) internal successors, (166), 11 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 59.0) internal successors, (708), 12 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,242 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 59.0) internal successors, (708), 12 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,243 INFO L185 Difference]: Start difference. First operand has 104 places, 85 transitions, 956 flow. Second operand 11 states and 166 transitions. [2021-03-26 03:35:49,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 114 transitions, 1536 flow [2021-03-26 03:35:49,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 114 transitions, 1438 flow, removed 4 selfloop flow, removed 12 redundant places. [2021-03-26 03:35:49,257 INFO L241 Difference]: Finished difference. Result has 107 places, 78 transitions, 838 flow [2021-03-26 03:35:49,257 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=838, PETRI_PLACES=107, PETRI_TRANSITIONS=78} [2021-03-26 03:35:49,258 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 82 predicate places. [2021-03-26 03:35:49,258 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:49,258 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 78 transitions, 838 flow [2021-03-26 03:35:49,258 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 78 transitions, 838 flow [2021-03-26 03:35:49,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 78 transitions, 838 flow [2021-03-26 03:35:49,268 INFO L129 PetriNetUnfolder]: 16/141 cut-off events. [2021-03-26 03:35:49,268 INFO L130 PetriNetUnfolder]: For 814/816 co-relation queries the response was YES. [2021-03-26 03:35:49,269 INFO L84 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 141 events. 16/141 cut-off events. For 814/816 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 770 event pairs, 0 based on Foata normal form. 1/138 useless extension candidates. Maximal degree in co-relation 672. Up to 29 conditions per place. [2021-03-26 03:35:49,270 INFO L142 LiptonReduction]: Number of co-enabled transitions 74 [2021-03-26 03:35:49,272 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:49,272 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:49,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-03-26 03:35:49,272 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 78 transitions, 838 flow [2021-03-26 03:35:49,272 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,272 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:49,272 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:49,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-26 03:35:49,273 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:49,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:49,273 INFO L82 PathProgramCache]: Analyzing trace with hash 2017780612, now seen corresponding path program 2 times [2021-03-26 03:35:49,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:49,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626639390] [2021-03-26 03:35:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:49,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:49,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,317 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 03:35:49,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626639390] [2021-03-26 03:35:49,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:49,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 03:35:49,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787093731] [2021-03-26 03:35:49,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 03:35:49,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:49,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 03:35:49,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-26 03:35:49,319 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 59 [2021-03-26 03:35:49,319 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 78 transitions, 838 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,319 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:49,319 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 59 [2021-03-26 03:35:49,319 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:49,463 INFO L129 PetriNetUnfolder]: 38/190 cut-off events. [2021-03-26 03:35:49,463 INFO L130 PetriNetUnfolder]: For 1507/1507 co-relation queries the response was YES. [2021-03-26 03:35:49,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1139 conditions, 190 events. 38/190 cut-off events. For 1507/1507 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1024 event pairs, 14 based on Foata normal form. 3/193 useless extension candidates. Maximal degree in co-relation 1095. Up to 110 conditions per place. [2021-03-26 03:35:49,464 INFO L132 encePairwiseOnDemand]: 39/59 looper letters, 50 selfloop transitions, 17 changer transitions 22/91 dead transitions. [2021-03-26 03:35:49,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 91 transitions, 1140 flow [2021-03-26 03:35:49,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-26 03:35:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-26 03:35:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 150 transitions. [2021-03-26 03:35:49,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.23112480739599384 [2021-03-26 03:35:49,466 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 150 transitions. [2021-03-26 03:35:49,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 150 transitions. [2021-03-26 03:35:49,468 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:49,468 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 150 transitions. [2021-03-26 03:35:49,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 13.636363636363637) internal successors, (150), 11 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 59.0) internal successors, (708), 12 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,472 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 59.0) internal successors, (708), 12 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,473 INFO L185 Difference]: Start difference. First operand has 102 places, 78 transitions, 838 flow. Second operand 11 states and 150 transitions. [2021-03-26 03:35:49,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 91 transitions, 1140 flow [2021-03-26 03:35:49,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 91 transitions, 1040 flow, removed 25 selfloop flow, removed 11 redundant places. [2021-03-26 03:35:49,481 INFO L241 Difference]: Finished difference. Result has 103 places, 66 transitions, 651 flow [2021-03-26 03:35:49,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=755, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=651, PETRI_PLACES=103, PETRI_TRANSITIONS=66} [2021-03-26 03:35:49,481 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 78 predicate places. [2021-03-26 03:35:49,482 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:49,482 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 66 transitions, 651 flow [2021-03-26 03:35:49,482 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 66 transitions, 651 flow [2021-03-26 03:35:49,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 66 transitions, 651 flow [2021-03-26 03:35:49,490 INFO L129 PetriNetUnfolder]: 13/119 cut-off events. [2021-03-26 03:35:49,490 INFO L130 PetriNetUnfolder]: For 498/500 co-relation queries the response was YES. [2021-03-26 03:35:49,490 INFO L84 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 119 events. 13/119 cut-off events. For 498/500 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 601 event pairs, 0 based on Foata normal form. 1/116 useless extension candidates. Maximal degree in co-relation 510. Up to 26 conditions per place. [2021-03-26 03:35:49,491 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 03:35:49,548 INFO L154 LiptonReduction]: Checked pairs total: 2 [2021-03-26 03:35:49,548 INFO L156 LiptonReduction]: Total number of compositions: 3 [2021-03-26 03:35:49,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 67 [2021-03-26 03:35:49,549 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 63 transitions, 631 flow [2021-03-26 03:35:49,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:49,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:49,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-26 03:35:49,549 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:49,550 INFO L82 PathProgramCache]: Analyzing trace with hash 605829822, now seen corresponding path program 1 times [2021-03-26 03:35:49,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:49,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896054218] [2021-03-26 03:35:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:49,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,585 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 03:35:49,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896054218] [2021-03-26 03:35:49,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:49,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-26 03:35:49,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18227556] [2021-03-26 03:35:49,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 03:35:49,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:49,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 03:35:49,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-26 03:35:49,586 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 62 [2021-03-26 03:35:49,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 63 transitions, 631 flow. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:49,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 62 [2021-03-26 03:35:49,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:49,743 INFO L129 PetriNetUnfolder]: 39/198 cut-off events. [2021-03-26 03:35:49,743 INFO L130 PetriNetUnfolder]: For 1340/1340 co-relation queries the response was YES. [2021-03-26 03:35:49,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1091 conditions, 198 events. 39/198 cut-off events. For 1340/1340 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1112 event pairs, 5 based on Foata normal form. 2/200 useless extension candidates. Maximal degree in co-relation 1036. Up to 60 conditions per place. [2021-03-26 03:35:49,745 INFO L132 encePairwiseOnDemand]: 42/62 looper letters, 35 selfloop transitions, 46 changer transitions 7/90 dead transitions. [2021-03-26 03:35:49,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 90 transitions, 1071 flow [2021-03-26 03:35:49,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:49,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 166 transitions. [2021-03-26 03:35:49,746 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.22311827956989247 [2021-03-26 03:35:49,746 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 166 transitions. [2021-03-26 03:35:49,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 166 transitions. [2021-03-26 03:35:49,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:49,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 166 transitions. [2021-03-26 03:35:49,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.833333333333334) internal successors, (166), 12 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 62.0) internal successors, (806), 13 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,748 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 62.0) internal successors, (806), 13 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,748 INFO L185 Difference]: Start difference. First operand has 92 places, 63 transitions, 631 flow. Second operand 12 states and 166 transitions. [2021-03-26 03:35:49,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 90 transitions, 1071 flow [2021-03-26 03:35:49,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 90 transitions, 920 flow, removed 50 selfloop flow, removed 18 redundant places. [2021-03-26 03:35:49,754 INFO L241 Difference]: Finished difference. Result has 91 places, 73 transitions, 800 flow [2021-03-26 03:35:49,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=62, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=800, PETRI_PLACES=91, PETRI_TRANSITIONS=73} [2021-03-26 03:35:49,755 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 66 predicate places. [2021-03-26 03:35:49,755 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:49,755 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 73 transitions, 800 flow [2021-03-26 03:35:49,755 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 73 transitions, 800 flow [2021-03-26 03:35:49,756 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 73 transitions, 800 flow [2021-03-26 03:35:49,765 INFO L129 PetriNetUnfolder]: 16/144 cut-off events. [2021-03-26 03:35:49,765 INFO L130 PetriNetUnfolder]: For 591/594 co-relation queries the response was YES. [2021-03-26 03:35:49,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 144 events. 16/144 cut-off events. For 591/594 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 820 event pairs, 0 based on Foata normal form. 3/146 useless extension candidates. Maximal degree in co-relation 680. Up to 34 conditions per place. [2021-03-26 03:35:49,766 INFO L142 LiptonReduction]: Number of co-enabled transitions 72 [2021-03-26 03:35:49,788 INFO L154 LiptonReduction]: Checked pairs total: 5 [2021-03-26 03:35:49,789 INFO L156 LiptonReduction]: Total number of compositions: 1 [2021-03-26 03:35:49,789 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 34 [2021-03-26 03:35:49,789 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 73 transitions, 802 flow [2021-03-26 03:35:49,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,790 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:49,790 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:49,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-26 03:35:49,790 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:49,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:49,790 INFO L82 PathProgramCache]: Analyzing trace with hash -641536772, now seen corresponding path program 1 times [2021-03-26 03:35:49,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:49,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582191773] [2021-03-26 03:35:49,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:49,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:49,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,816 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,828 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:49,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:49,842 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 03:35:49,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582191773] [2021-03-26 03:35:49,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:49,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 03:35:49,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53921736] [2021-03-26 03:35:49,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 03:35:49,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:49,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 03:35:49,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-26 03:35:49,844 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 63 [2021-03-26 03:35:49,844 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 73 transitions, 802 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:49,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:49,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 63 [2021-03-26 03:35:49,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:50,000 INFO L129 PetriNetUnfolder]: 37/177 cut-off events. [2021-03-26 03:35:50,000 INFO L130 PetriNetUnfolder]: For 984/984 co-relation queries the response was YES. [2021-03-26 03:35:50,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 177 events. 37/177 cut-off events. For 984/984 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 929 event pairs, 7 based on Foata normal form. 2/179 useless extension candidates. Maximal degree in co-relation 997. Up to 106 conditions per place. [2021-03-26 03:35:50,002 INFO L132 encePairwiseOnDemand]: 45/63 looper letters, 43 selfloop transitions, 15 changer transitions 24/84 dead transitions. [2021-03-26 03:35:50,002 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 84 transitions, 1058 flow [2021-03-26 03:35:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 161 transitions. [2021-03-26 03:35:50,005 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.21296296296296297 [2021-03-26 03:35:50,006 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 161 transitions. [2021-03-26 03:35:50,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 161 transitions. [2021-03-26 03:35:50,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:50,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 161 transitions. [2021-03-26 03:35:50,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 13.416666666666666) internal successors, (161), 12 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 63.0) internal successors, (819), 13 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,011 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 63.0) internal successors, (819), 13 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,011 INFO L185 Difference]: Start difference. First operand has 91 places, 73 transitions, 802 flow. Second operand 12 states and 161 transitions. [2021-03-26 03:35:50,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 84 transitions, 1058 flow [2021-03-26 03:35:50,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 84 transitions, 1004 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-26 03:35:50,018 INFO L241 Difference]: Finished difference. Result has 98 places, 57 transitions, 591 flow [2021-03-26 03:35:50,018 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=591, PETRI_PLACES=98, PETRI_TRANSITIONS=57} [2021-03-26 03:35:50,018 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 73 predicate places. [2021-03-26 03:35:50,018 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:50,019 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 57 transitions, 591 flow [2021-03-26 03:35:50,019 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 57 transitions, 591 flow [2021-03-26 03:35:50,019 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 57 transitions, 591 flow [2021-03-26 03:35:50,027 INFO L129 PetriNetUnfolder]: 14/119 cut-off events. [2021-03-26 03:35:50,027 INFO L130 PetriNetUnfolder]: For 407/409 co-relation queries the response was YES. [2021-03-26 03:35:50,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 119 events. 14/119 cut-off events. For 407/409 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 607 event pairs, 0 based on Foata normal form. 2/120 useless extension candidates. Maximal degree in co-relation 537. Up to 27 conditions per place. [2021-03-26 03:35:50,028 INFO L142 LiptonReduction]: Number of co-enabled transitions 70 [2021-03-26 03:35:50,029 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:50,029 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 03:35:50,029 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-03-26 03:35:50,030 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 57 transitions, 591 flow [2021-03-26 03:35:50,030 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,031 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:50,031 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:50,031 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-26 03:35:50,031 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:50,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash 625263459, now seen corresponding path program 1 times [2021-03-26 03:35:50,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:50,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481853682] [2021-03-26 03:35:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 03:35:50,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 03:35:50,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 03:35:50,083 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 03:35:50,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481853682] [2021-03-26 03:35:50,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 03:35:50,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-03-26 03:35:50,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878898081] [2021-03-26 03:35:50,083 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 03:35:50,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 03:35:50,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 03:35:50,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-03-26 03:35:50,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 63 [2021-03-26 03:35:50,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 57 transitions, 591 flow. Second operand has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 03:35:50,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 63 [2021-03-26 03:35:50,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 03:35:50,213 INFO L129 PetriNetUnfolder]: 34/151 cut-off events. [2021-03-26 03:35:50,214 INFO L130 PetriNetUnfolder]: For 709/709 co-relation queries the response was YES. [2021-03-26 03:35:50,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 867 conditions, 151 events. 34/151 cut-off events. For 709/709 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 722 event pairs, 10 based on Foata normal form. 1/152 useless extension candidates. Maximal degree in co-relation 831. Up to 114 conditions per place. [2021-03-26 03:35:50,215 INFO L132 encePairwiseOnDemand]: 51/63 looper letters, 40 selfloop transitions, 6 changer transitions 12/60 dead transitions. [2021-03-26 03:35:50,215 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 60 transitions, 729 flow [2021-03-26 03:35:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 03:35:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 03:35:50,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 141 transitions. [2021-03-26 03:35:50,216 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.1865079365079365 [2021-03-26 03:35:50,216 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 141 transitions. [2021-03-26 03:35:50,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 141 transitions. [2021-03-26 03:35:50,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 03:35:50,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 141 transitions. [2021-03-26 03:35:50,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 11.75) internal successors, (141), 12 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 03:35:50,217 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 63.0) internal successors, (819), 13 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,217 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 63.0) internal successors, (819), 13 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,217 INFO L185 Difference]: Start difference. First operand has 88 places, 57 transitions, 591 flow. Second operand 12 states and 141 transitions. [2021-03-26 03:35:50,218 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 60 transitions, 729 flow [2021-03-26 03:35:50,222 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 60 transitions, 653 flow, removed 4 selfloop flow, removed 15 redundant places. [2021-03-26 03:35:50,223 INFO L241 Difference]: Finished difference. Result has 85 places, 48 transitions, 451 flow [2021-03-26 03:35:50,223 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=63, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=451, PETRI_PLACES=85, PETRI_TRANSITIONS=48} [2021-03-26 03:35:50,223 INFO L343 CegarLoopForPetriNet]: 25 programPoint places, 60 predicate places. [2021-03-26 03:35:50,223 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 03:35:50,223 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 48 transitions, 451 flow [2021-03-26 03:35:50,224 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 48 transitions, 451 flow [2021-03-26 03:35:50,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 67 places, 48 transitions, 451 flow [2021-03-26 03:35:50,230 INFO L129 PetriNetUnfolder]: 14/105 cut-off events. [2021-03-26 03:35:50,230 INFO L130 PetriNetUnfolder]: For 322/324 co-relation queries the response was YES. [2021-03-26 03:35:50,230 INFO L84 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 105 events. 14/105 cut-off events. For 322/324 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 507 event pairs, 0 based on Foata normal form. 2/105 useless extension candidates. Maximal degree in co-relation 448. Up to 27 conditions per place. [2021-03-26 03:35:50,231 INFO L142 LiptonReduction]: Number of co-enabled transitions 60 [2021-03-26 03:35:50,275 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 03:35:50,275 INFO L156 LiptonReduction]: Total number of compositions: 2 [2021-03-26 03:35:50,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 52 [2021-03-26 03:35:50,276 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 461 flow [2021-03-26 03:35:50,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 10.3) internal successors, (103), 10 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 03:35:50,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 03:35:50,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 03:35:50,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-26 03:35:50,276 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 03:35:50,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 03:35:50,277 INFO L82 PathProgramCache]: Analyzing trace with hash -175740728, now seen corresponding path program 2 times [2021-03-26 03:35:50,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 03:35:50,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204683206] [2021-03-26 03:35:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 03:35:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 03:35:50,280 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 03:35:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-26 03:35:50,281 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-26 03:35:50,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-26 03:35:50,292 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-26 03:35:50,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-26 03:35:50,307 INFO L202 PluginConnector]: Adding new model NonAtomicIncrement_2Threads.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 03:35:50 BasicIcfg [2021-03-26 03:35:50,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 03:35:50,307 INFO L168 Benchmark]: Toolchain (without parser) took 9504.22 ms. Allocated memory was 255.9 MB in the beginning and 528.5 MB in the end (delta: 272.6 MB). Free memory was 236.6 MB in the beginning and 274.7 MB in the end (delta: -38.1 MB). Peak memory consumption was 235.9 MB. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.54 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.3 MB in the end (delta: 684.0 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 INFO L168 Benchmark]: RCFGBuilder took 211.94 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 239.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 INFO L168 Benchmark]: TraceAbstraction took 9255.93 ms. Allocated memory was 255.9 MB in the beginning and 528.5 MB in the end (delta: 272.6 MB). Free memory was 239.8 MB in the beginning and 274.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 238.3 MB. Max. memory is 16.0 GB. [2021-03-26 03:35:50,308 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 0.54 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.4 MB in the end (delta: 182.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 235.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.3 MB in the end (delta: 684.0 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 211.94 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 239.8 MB in the end (delta: -5.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 9255.93 ms. Allocated memory was 255.9 MB in the beginning and 528.5 MB in the end (delta: 272.6 MB). Free memory was 239.8 MB in the beginning and 274.7 MB in the end (delta: -34.9 MB). Peak memory consumption was 238.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 155.1ms, 27 PlacesBefore, 25 PlacesAfterwards, 22 TransitionsBefore, 20 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 354 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 70, positive: 28, positive conditional: 28, positive unconditional: 0, negative: 42, negative conditional: 42, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 44, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 97, negative conditional: 0, negative unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 20, negative conditional: 20, negative unconditional: 0, unknown: 44, unknown conditional: 44, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 18, Negative conditional cache size: 18, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 198.3ms, 50 PlacesBefore, 44 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 138 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 843 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 89, positive: 29, positive conditional: 29, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18, positive: 9, positive conditional: 8, positive unconditional: 1, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 9, negative conditional: 9, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 35, negative conditional: 35, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 89, positive: 20, positive conditional: 20, positive unconditional: 0, negative: 51, negative conditional: 51, negative unconditional: 0, unknown: 18, unknown conditional: 18, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 9, Positive conditional cache size: 9, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 146.5ms, 72 PlacesBefore, 71 PlacesAfterwards, 104 TransitionsBefore, 102 TransitionsAfterwards, 214 CoEnabledTransitionPairs, 3 FixpointIterations, 3 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2, positive: 1, positive conditional: 1, 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): 5, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.2ms, 72 PlacesBefore, 72 PlacesAfterwards, 100 TransitionsBefore, 100 TransitionsAfterwards, 184 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 5, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 4, Negative conditional cache size: 4, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 119.4ms, 89 PlacesBefore, 88 PlacesAfterwards, 114 TransitionsBefore, 113 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1, Positive cache size: 1, Positive conditional cache size: 1, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 73.2ms, 106 PlacesBefore, 88 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 4, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 32.5ms, 87 PlacesBefore, 78 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 4, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 118.2ms, 86 PlacesBefore, 86 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 186 CoEnabledTransitionPairs, 3 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 3 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3, positive: 2, positive conditional: 2, 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): 5, Positive cache size: 5, Positive conditional cache size: 5, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 81.0ms, 107 PlacesBefore, 105 PlacesAfterwards, 126 TransitionsBefore, 125 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 1 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1, unknown conditional: 1, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4, Positive cache size: 4, Positive conditional cache size: 4, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 58.1ms, 110 PlacesBefore, 104 PlacesAfterwards, 119 TransitionsBefore, 119 TransitionsAfterwards, 188 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 31.9ms, 113 PlacesBefore, 101 PlacesAfterwards, 106 TransitionsBefore, 106 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 34.5ms, 105 PlacesBefore, 103 PlacesAfterwards, 115 TransitionsBefore, 115 TransitionsAfterwards, 182 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 37.1ms, 111 PlacesBefore, 109 PlacesAfterwards, 116 TransitionsBefore, 116 TransitionsAfterwards, 180 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 27.7ms, 120 PlacesBefore, 110 PlacesAfterwards, 96 TransitionsBefore, 96 TransitionsAfterwards, 160 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 6, Positive cache size: 6, Positive conditional cache size: 6, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 64.7ms, 100 PlacesBefore, 78 PlacesAfterwards, 80 TransitionsBefore, 78 TransitionsAfterwards, 156 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2, Positive cache size: 2, Positive conditional cache size: 2, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 70.5ms, 81 PlacesBefore, 76 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 148 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 10 MoverChecksTotal, Independence Relation Statistics: 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: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8, positive: 8, positive conditional: 8, 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: 8, positive: 8, positive conditional: 0, positive unconditional: 8, 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: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 76.3ms, 89 PlacesBefore, 86 PlacesAfterwards, 98 TransitionsBefore, 98 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 4 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, 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: 1, positive conditional: 1, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 3, unknown conditional: 3, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 13, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.9ms, 99 PlacesBefore, 96 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 132 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 13, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.2ms, 105 PlacesBefore, 100 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.9ms, 106 PlacesBefore, 104 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.6ms, 107 PlacesBefore, 102 PlacesAfterwards, 78 TransitionsBefore, 78 TransitionsAfterwards, 74 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 10, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 66.4ms, 103 PlacesBefore, 92 PlacesAfterwards, 66 TransitionsBefore, 63 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 3 TotalNumberOfCompositions, 2 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: 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: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 8, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 33.3ms, 91 PlacesBefore, 91 PlacesAfterwards, 73 TransitionsBefore, 73 TransitionsAfterwards, 72 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 5 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.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] , CachedIndependenceRelation.Statistics on underlying relation: 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: UnionIndependenceRelation.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] , 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: 5, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 13, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.5ms, 98 PlacesBefore, 88 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 70 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 13, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 51.6ms, 85 PlacesBefore, 67 PlacesAfterwards, 48 TransitionsBefore, 48 TransitionsAfterwards, 60 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 7, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - CounterExampleResult [Line: 28]: assertion can be violated assertion can be violated We found a FailurePath: [L22] 0 x := 0; VAL [x=0] [L24] FORK 0 fork 1 IncrementProcess1(); VAL [x=0] [L25] FORK 0 fork 2 IncrementProcess2(); VAL [x=0] [L54] 2 localx := x; VAL [localx=0, x=0] [L38] 1 localx := x; [L39] 1 x := localx + 1; VAL [localx=0, localx=0, x=1] [L41] 1 localx := x; [L42] 1 x := localx + 1; VAL [localx=0, localx=1, x=2] [L55] 2 x := localx + 1; VAL [localx=0, localx=1, x=1] [L44] 1 localx := x; VAL [localx=0, localx=1, x=1] [L57] 2 localx := x; [L58] 2 x := localx + 1; VAL [localx=1, localx=1, x=2] [L60] 2 localx := x; VAL [localx=2, localx=1, x=2] [L61] 2 x := localx + 1; [L45] 1 x := localx + 1; [L26] JOIN 1 join 1; VAL [localx=2, localx=1, x=2] [L27] JOIN 2 join 2; VAL [localx=2, localx=1, x=2] [L28] 0 assert x >= 3; VAL [localx=2, localx=1, x=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 14.6ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 9101.3ms, OverallIterations: 25, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 5555.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 249.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 374 SDtfs, 594 SDslu, 459 SDs, 0 SdLazy, 3252 SolverSat, 1177 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1857.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 332 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 2014.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1362occurred in iteration=8, InterpolantAutomatonStates: 298, 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: 23.9ms SsaConstructionTime, 113.6ms SatisfiabilityAnalysisTime, 1409.0ms InterpolantComputationTime, 372 NumberOfCodeBlocks, 372 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 333 ConstructedInterpolants, 0 QuantifiedInterpolants, 999 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...