/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:32:14,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:32:14,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:32:14,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:32:14,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:32:14,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:32:14,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:32:14,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:32:14,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:32:14,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:32:14,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:32:14,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:32:14,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:32:14,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:32:14,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:32:14,444 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:32:14,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:32:14,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:32:14,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:32:14,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:32:14,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:32:14,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:32:14,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:32:14,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:32:14,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 13:32:14,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:32:14,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:32:14,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:32:14,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:32:14,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:32:14,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:32:14,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:32:14,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:32:14,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:32:14,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:32:14,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:32:14,478 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-VariableLbe.epf [2021-03-24 13:32:14,513 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:32:14,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:32:14,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:32:14,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:32:14,517 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:32:14,517 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:32:14,517 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:32:14,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:32:14,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:32:14,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:32:14,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:32:14,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:32:14,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:32:14,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:32:14,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:32:14,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:32:14,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:32:14,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:32:14,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:32:14,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:32:14,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:32:14,840 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 13:32:14,841 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 13:32:14,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-03-24 13:32:14,842 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-03-24 13:32:14,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:32:14,891 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 13:32:14,892 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:32:14,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:32:14,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:32:14,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,908 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:32:14,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:32:14,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:32:14,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:32:14,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,928 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/1) ... [2021-03-24 13:32:14,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:32:14,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:32:14,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:32:14,930 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:32:14,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (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 [2021-03-24 13:32:14,990 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-24 13:32:14,990 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-24 13:32:14,991 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-24 13:32:14,992 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-24 13:32:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-24 13:32:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-24 13:32:14,992 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-24 13:32:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-24 13:32:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-24 13:32:14,992 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-24 13:32:14,992 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-24 13:32:14,992 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-24 13:32:14,993 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-24 13:32:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-24 13:32:14,993 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-24 13:32:14,993 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-24 13:32:14,993 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-24 13:32:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-24 13:32:14,994 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-24 13:32:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:32:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:32:14,995 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-24 13:32:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-24 13:32:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-24 13:32:14,995 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-24 13:32:14,996 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-24 13:32:14,996 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-24 13:32:14,997 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-24 13:32:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-24 13:32:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-24 13:32:14,997 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-24 13:32:14,997 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-24 13:32:14,997 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-24 13:32:14,998 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-24 13:32:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-24 13:32:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-24 13:32:14,998 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-24 13:32:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-24 13:32:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-24 13:32:14,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-24 13:32:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-24 13:32:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-24 13:32:15,000 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 13:32:15,208 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:32:15,209 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 13:32:15,210 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:32:15 BoogieIcfgContainer [2021-03-24 13:32:15,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:32:15,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:32:15,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:32:15,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:32:15,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:32:14" (1/2) ... [2021-03-24 13:32:15,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb38601 and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:32:15, skipping insertion in model container [2021-03-24 13:32:15,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:32:15" (2/2) ... [2021-03-24 13:32:15,216 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-03-24 13:32:15,221 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:32:15,224 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:32:15,225 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:32:15,500 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-03-24 13:32:15,517 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-03-24 13:32:15,535 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:32:15,535 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:32:15,535 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:32:15,535 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:32:15,535 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:32:15,536 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:32:15,536 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:32:15,536 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:32:15,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-03-24 13:32:19,969 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-03-24 13:32:19,970 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 13:32:20,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106578 conditions, 53290 events. 45057/53290 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 211898 event pairs, 0 based on Foata normal form. 0/53289 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2021-03-24 13:32:20,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-03-24 13:32:20,836 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-03-24 13:32:20,838 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:32:20,847 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-24 13:32:20,851 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-24 13:32:20,856 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 209 transitions, 964 flow [2021-03-24 13:32:24,165 INFO L129 PetriNetUnfolder]: 45057/53288 cut-off events. [2021-03-24 13:32:24,165 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 13:32:24,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106576 conditions, 53288 events. 45057/53288 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 223878 event pairs, 0 based on Foata normal form. 0/53288 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2021-03-24 13:32:25,450 INFO L142 LiptonReduction]: Number of co-enabled transitions 8424 [2021-03-24 13:32:25,873 INFO L154 LiptonReduction]: Checked pairs total: 2262 [2021-03-24 13:32:25,874 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-24 13:32:25,876 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5039 [2021-03-24 13:32:28,344 INFO L129 PetriNetUnfolder]: 45057/53274 cut-off events. [2021-03-24 13:32:28,345 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 13:32:28,345 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:28,346 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:28,346 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:28,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:28,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1397032023, now seen corresponding path program 1 times [2021-03-24 13:32:28,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:28,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90908143] [2021-03-24 13:32:28,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:28,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:28,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:28,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:28,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:28,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:28,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:28,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90908143] [2021-03-24 13:32:28,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:28,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:28,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092157252] [2021-03-24 13:32:28,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:28,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:28,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:28,546 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:28,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 196 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:28,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:28,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:28,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:31,272 INFO L129 PetriNetUnfolder]: 27225/32933 cut-off events. [2021-03-24 13:32:31,272 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-03-24 13:32:31,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67467 conditions, 32933 events. 27225/32933 cut-off events. For 43609/43609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 155055 event pairs, 0 based on Foata normal form. 2510/35443 useless extension candidates. Maximal degree in co-relation 49180. Up to 6435 conditions per place. [2021-03-24 13:32:31,914 INFO L132 encePairwiseOnDemand]: 229/237 looper letters, 6 selfloop transitions, 1 changer transitions 0/189 dead transitions. [2021-03-24 13:32:31,915 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 189 transitions, 917 flow [2021-03-24 13:32:31,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:31,935 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:31,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:31,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:31,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:31,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:31,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:31,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:31,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:31,957 INFO L185 Difference]: Start difference. First operand has 80 places, 196 transitions, 938 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:31,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 189 transitions, 917 flow [2021-03-24 13:32:32,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 189 transitions, 567 flow, removed 0 selfloop flow, removed 26 redundant places. [2021-03-24 13:32:32,399 INFO L241 Difference]: Finished difference. Result has 56 places, 189 transitions, 555 flow [2021-03-24 13:32:32,401 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=555, PETRI_PLACES=56, PETRI_TRANSITIONS=189} [2021-03-24 13:32:32,402 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-03-24 13:32:32,402 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 189 transitions, 555 flow [2021-03-24 13:32:32,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:32,402 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:32,403 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:32,403 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 13:32:32,403 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:32,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:32,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1916037355, now seen corresponding path program 1 times [2021-03-24 13:32:32,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:32,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232493915] [2021-03-24 13:32:32,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:32,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:32,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:32,426 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:32,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:32,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:32,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:32,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232493915] [2021-03-24 13:32:32,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:32,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:32,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289987929] [2021-03-24 13:32:32,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:32,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:32,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:32,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:32,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:32,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 189 transitions, 555 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:32,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:32,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:32,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:33,619 INFO L129 PetriNetUnfolder]: 27214/32921 cut-off events. [2021-03-24 13:32:33,619 INFO L130 PetriNetUnfolder]: For 2610/2610 co-relation queries the response was YES. [2021-03-24 13:32:33,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35548 conditions, 32921 events. 27214/32921 cut-off events. For 2610/2610 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 154692 event pairs, 0 based on Foata normal form. 1/32922 useless extension candidates. Maximal degree in co-relation 35527. Up to 6435 conditions per place. [2021-03-24 13:32:33,809 INFO L132 encePairwiseOnDemand]: 235/237 looper letters, 12 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2021-03-24 13:32:33,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 188 transitions, 578 flow [2021-03-24 13:32:33,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:33,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:33,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:33,811 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:33,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:33,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:33,812 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:33,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:33,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:33,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:33,815 INFO L185 Difference]: Start difference. First operand has 56 places, 189 transitions, 555 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:33,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 188 transitions, 578 flow [2021-03-24 13:32:33,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 188 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:33,827 INFO L241 Difference]: Finished difference. Result has 57 places, 188 transitions, 553 flow [2021-03-24 13:32:33,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=57, PETRI_TRANSITIONS=188} [2021-03-24 13:32:33,828 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -23 predicate places. [2021-03-24 13:32:33,828 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 188 transitions, 553 flow [2021-03-24 13:32:33,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:33,828 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:33,828 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:33,828 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 13:32:33,829 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:33,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:33,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1008616503, now seen corresponding path program 1 times [2021-03-24 13:32:33,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:33,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345600803] [2021-03-24 13:32:33,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:33,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:33,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:33,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:33,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:33,853 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:33,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:33,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345600803] [2021-03-24 13:32:33,854 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:33,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:33,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866683944] [2021-03-24 13:32:33,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:33,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:33,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:33,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:33,856 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:33,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 188 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:33,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:33,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:33,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:34,764 INFO L129 PetriNetUnfolder]: 27094/32789 cut-off events. [2021-03-24 13:32:34,764 INFO L130 PetriNetUnfolder]: For 2609/2609 co-relation queries the response was YES. [2021-03-24 13:32:34,995 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35406 conditions, 32789 events. 27094/32789 cut-off events. For 2609/2609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 157057 event pairs, 0 based on Foata normal form. 11/32800 useless extension candidates. Maximal degree in co-relation 35398. Up to 6435 conditions per place. [2021-03-24 13:32:35,069 INFO L132 encePairwiseOnDemand]: 234/237 looper letters, 11 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-03-24 13:32:35,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 186 transitions, 571 flow [2021-03-24 13:32:35,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:35,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:35,071 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:35,071 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:35,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:35,072 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:35,072 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:35,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:35,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:35,075 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:35,075 INFO L185 Difference]: Start difference. First operand has 57 places, 188 transitions, 553 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:35,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 186 transitions, 571 flow [2021-03-24 13:32:35,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 186 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:35,080 INFO L241 Difference]: Finished difference. Result has 58 places, 186 transitions, 548 flow [2021-03-24 13:32:35,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=58, PETRI_TRANSITIONS=186} [2021-03-24 13:32:35,080 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -22 predicate places. [2021-03-24 13:32:35,080 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 186 transitions, 548 flow [2021-03-24 13:32:35,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:35,081 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:35,081 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:35,081 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 13:32:35,081 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:35,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:35,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1663597145, now seen corresponding path program 1 times [2021-03-24 13:32:35,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:35,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845487070] [2021-03-24 13:32:35,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:35,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:35,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:35,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:35,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:35,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:35,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:35,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:35,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845487070] [2021-03-24 13:32:35,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:35,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:35,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400352058] [2021-03-24 13:32:35,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:35,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:35,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:35,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:35,106 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:35,107 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 186 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:35,107 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:35,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:35,107 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:36,006 INFO L129 PetriNetUnfolder]: 20098/24770 cut-off events. [2021-03-24 13:32:36,006 INFO L130 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2021-03-24 13:32:36,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26376 conditions, 24770 events. 20098/24770 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 119923 event pairs, 0 based on Foata normal form. 1012/25782 useless extension candidates. Maximal degree in co-relation 26368. Up to 6435 conditions per place. [2021-03-24 13:32:36,104 INFO L132 encePairwiseOnDemand]: 230/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/180 dead transitions. [2021-03-24 13:32:36,105 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 180 transitions, 546 flow [2021-03-24 13:32:36,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:36,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:36,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:36,116 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:36,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:36,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,120 INFO L185 Difference]: Start difference. First operand has 58 places, 186 transitions, 548 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:36,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 180 transitions, 546 flow [2021-03-24 13:32:36,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 180 transitions, 545 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:36,124 INFO L241 Difference]: Finished difference. Result has 59 places, 180 transitions, 531 flow [2021-03-24 13:32:36,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=59, PETRI_TRANSITIONS=180} [2021-03-24 13:32:36,125 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-03-24 13:32:36,125 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 180 transitions, 531 flow [2021-03-24 13:32:36,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:36,126 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:36,126 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 13:32:36,126 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:36,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:36,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1135598883, now seen corresponding path program 1 times [2021-03-24 13:32:36,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:36,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117136703] [2021-03-24 13:32:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:36,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:36,158 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:36,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117136703] [2021-03-24 13:32:36,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:36,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:36,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28768213] [2021-03-24 13:32:36,160 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:36,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:36,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:36,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:36,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:36,162 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 180 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,162 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:36,163 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:36,163 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:36,612 INFO L129 PetriNetUnfolder]: 10028/12809 cut-off events. [2021-03-24 13:32:36,612 INFO L130 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2021-03-24 13:32:36,638 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13624 conditions, 12809 events. 10028/12809 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 63527 event pairs, 0 based on Foata normal form. 1167/13976 useless extension candidates. Maximal degree in co-relation 13616. Up to 2860 conditions per place. [2021-03-24 13:32:36,673 INFO L132 encePairwiseOnDemand]: 228/237 looper letters, 5 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2021-03-24 13:32:36,673 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 172 transitions, 519 flow [2021-03-24 13:32:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:36,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:36,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:36,675 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:36,675 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:36,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,679 INFO L185 Difference]: Start difference. First operand has 59 places, 180 transitions, 531 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:36,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 172 transitions, 519 flow [2021-03-24 13:32:36,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 172 transitions, 518 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:36,683 INFO L241 Difference]: Finished difference. Result has 60 places, 172 transitions, 508 flow [2021-03-24 13:32:36,683 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=60, PETRI_TRANSITIONS=172} [2021-03-24 13:32:36,683 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-03-24 13:32:36,684 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 172 transitions, 508 flow [2021-03-24 13:32:36,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,684 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:36,684 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:36,684 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 13:32:36,685 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:36,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:36,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1920693199, now seen corresponding path program 1 times [2021-03-24 13:32:36,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:36,685 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657926023] [2021-03-24 13:32:36,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:36,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:36,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:36,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:36,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657926023] [2021-03-24 13:32:36,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:36,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:36,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182829125] [2021-03-24 13:32:36,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:36,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:36,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:36,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:36,712 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:36,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 172 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,713 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:36,713 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:36,713 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:36,862 INFO L129 PetriNetUnfolder]: 3131/4198 cut-off events. [2021-03-24 13:32:36,862 INFO L130 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2021-03-24 13:32:36,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4221 conditions, 4198 events. 3131/4198 cut-off events. For 1040/1040 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 19986 event pairs, 0 based on Foata normal form. 1039/5237 useless extension candidates. Maximal degree in co-relation 4213. Up to 660 conditions per place. [2021-03-24 13:32:36,879 INFO L132 encePairwiseOnDemand]: 224/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2021-03-24 13:32:36,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 148 transitions, 440 flow [2021-03-24 13:32:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 13:32:36,884 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 13:32:36,884 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:36,884 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 13:32:36,886 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,888 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,888 INFO L185 Difference]: Start difference. First operand has 60 places, 172 transitions, 508 flow. Second operand 3 states and 683 transitions. [2021-03-24 13:32:36,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 148 transitions, 440 flow [2021-03-24 13:32:36,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 148 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:36,915 INFO L241 Difference]: Finished difference. Result has 61 places, 148 transitions, 437 flow [2021-03-24 13:32:36,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=437, PETRI_PLACES=61, PETRI_TRANSITIONS=148} [2021-03-24 13:32:36,916 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-03-24 13:32:36,916 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 148 transitions, 437 flow [2021-03-24 13:32:36,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:36,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:36,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 13:32:36,917 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash -287933799, now seen corresponding path program 1 times [2021-03-24 13:32:36,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:36,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895243153] [2021-03-24 13:32:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:36,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,950 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:36,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:36,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:36,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:36,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895243153] [2021-03-24 13:32:36,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:36,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:36,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986780118] [2021-03-24 13:32:36,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:36,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:36,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:36,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:36,961 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:36,961 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 148 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:36,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:36,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:36,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,034 INFO L129 PetriNetUnfolder]: 1080/1560 cut-off events. [2021-03-24 13:32:37,034 INFO L130 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2021-03-24 13:32:37,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 1560 events. 1080/1560 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6659 event pairs, 0 based on Foata normal form. 319/1879 useless extension candidates. Maximal degree in co-relation 1642. Up to 280 conditions per place. [2021-03-24 13:32:37,040 INFO L132 encePairwiseOnDemand]: 227/237 looper letters, 3 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2021-03-24 13:32:37,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 139 transitions, 418 flow [2021-03-24 13:32:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 13:32:37,042 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 13:32:37,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,045 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,045 INFO L185 Difference]: Start difference. First operand has 61 places, 148 transitions, 437 flow. Second operand 3 states and 682 transitions. [2021-03-24 13:32:37,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 139 transitions, 418 flow [2021-03-24 13:32:37,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 139 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,048 INFO L241 Difference]: Finished difference. Result has 62 places, 139 transitions, 411 flow [2021-03-24 13:32:37,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=62, PETRI_TRANSITIONS=139} [2021-03-24 13:32:37,048 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-03-24 13:32:37,048 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 139 transitions, 411 flow [2021-03-24 13:32:37,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,049 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,049 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,049 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 13:32:37,049 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1930560167, now seen corresponding path program 1 times [2021-03-24 13:32:37,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147239821] [2021-03-24 13:32:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:37,069 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:37,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147239821] [2021-03-24 13:32:37,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:37,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:37,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422721950] [2021-03-24 13:32:37,070 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:37,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:37,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:37,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:37,071 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:37,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 139 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:37,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:37,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,135 INFO L129 PetriNetUnfolder]: 940/1392 cut-off events. [2021-03-24 13:32:37,135 INFO L130 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2021-03-24 13:32:37,138 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 1392 events. 940/1392 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 5996 event pairs, 0 based on Foata normal form. 21/1413 useless extension candidates. Maximal degree in co-relation 1545. Up to 280 conditions per place. [2021-03-24 13:32:37,141 INFO L132 encePairwiseOnDemand]: 233/237 looper letters, 9 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-03-24 13:32:37,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 422 flow [2021-03-24 13:32:37,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 13:32:37,143 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 13:32:37,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,147 INFO L185 Difference]: Start difference. First operand has 62 places, 139 transitions, 411 flow. Second operand 3 states and 682 transitions. [2021-03-24 13:32:37,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 422 flow [2021-03-24 13:32:37,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,149 INFO L241 Difference]: Finished difference. Result has 63 places, 136 transitions, 403 flow [2021-03-24 13:32:37,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=63, PETRI_TRANSITIONS=136} [2021-03-24 13:32:37,150 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -17 predicate places. [2021-03-24 13:32:37,150 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 136 transitions, 403 flow [2021-03-24 13:32:37,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,150 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,150 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 13:32:37,151 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1269193419, now seen corresponding path program 1 times [2021-03-24 13:32:37,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837693679] [2021-03-24 13:32:37,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:37,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:37,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837693679] [2021-03-24 13:32:37,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:37,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:37,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440383006] [2021-03-24 13:32:37,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:37,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:37,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:37,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:37,172 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:37,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 136 transitions, 403 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:37,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:37,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,217 INFO L129 PetriNetUnfolder]: 611/972 cut-off events. [2021-03-24 13:32:37,217 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2021-03-24 13:32:37,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 972 events. 611/972 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4185 event pairs, 0 based on Foata normal form. 70/1042 useless extension candidates. Maximal degree in co-relation 1056. Up to 165 conditions per place. [2021-03-24 13:32:37,222 INFO L132 encePairwiseOnDemand]: 231/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2021-03-24 13:32:37,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 404 flow [2021-03-24 13:32:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 13:32:37,223 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 13:32:37,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,227 INFO L185 Difference]: Start difference. First operand has 63 places, 136 transitions, 403 flow. Second operand 3 states and 682 transitions. [2021-03-24 13:32:37,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 404 flow [2021-03-24 13:32:37,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,229 INFO L241 Difference]: Finished difference. Result has 64 places, 131 transitions, 389 flow [2021-03-24 13:32:37,229 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=64, PETRI_TRANSITIONS=131} [2021-03-24 13:32:37,229 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -16 predicate places. [2021-03-24 13:32:37,229 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 131 transitions, 389 flow [2021-03-24 13:32:37,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,230 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,230 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,230 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 13:32:37,230 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1323234069, now seen corresponding path program 1 times [2021-03-24 13:32:37,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027032361] [2021-03-24 13:32:37,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:37,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:37,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027032361] [2021-03-24 13:32:37,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:37,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:37,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381448246] [2021-03-24 13:32:37,249 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:37,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:37,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:37,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:37,250 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:37,251 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 131 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,251 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:37,251 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:37,251 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,293 INFO L129 PetriNetUnfolder]: 506/832 cut-off events. [2021-03-24 13:32:37,294 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-24 13:32:37,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 832 events. 506/832 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3634 event pairs, 0 based on Foata normal form. 20/852 useless extension candidates. Maximal degree in co-relation 917. Up to 165 conditions per place. [2021-03-24 13:32:37,297 INFO L132 encePairwiseOnDemand]: 232/237 looper letters, 8 selfloop transitions, 1 changer transitions 0/127 dead transitions. [2021-03-24 13:32:37,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 127 transitions, 395 flow [2021-03-24 13:32:37,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 13:32:37,299 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 13:32:37,299 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,299 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,302 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,302 INFO L185 Difference]: Start difference. First operand has 64 places, 131 transitions, 389 flow. Second operand 3 states and 682 transitions. [2021-03-24 13:32:37,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 127 transitions, 395 flow [2021-03-24 13:32:37,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 127 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,305 INFO L241 Difference]: Finished difference. Result has 65 places, 127 transitions, 378 flow [2021-03-24 13:32:37,305 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=65, PETRI_TRANSITIONS=127} [2021-03-24 13:32:37,305 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -15 predicate places. [2021-03-24 13:32:37,305 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 127 transitions, 378 flow [2021-03-24 13:32:37,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,306 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,306 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,306 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 13:32:37,306 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1494861249, now seen corresponding path program 1 times [2021-03-24 13:32:37,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128453760] [2021-03-24 13:32:37,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:37,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:37,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128453760] [2021-03-24 13:32:37,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:37,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:37,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254582381] [2021-03-24 13:32:37,323 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:37,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:37,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:37,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:37,324 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:37,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 127 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:37,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:37,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,343 INFO L129 PetriNetUnfolder]: 55/150 cut-off events. [2021-03-24 13:32:37,343 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-03-24 13:32:37,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 150 events. 55/150 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 418 event pairs, 0 based on Foata normal form. 66/216 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2021-03-24 13:32:37,344 INFO L132 encePairwiseOnDemand]: 225/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/105 dead transitions. [2021-03-24 13:32:37,344 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 105 transitions, 316 flow [2021-03-24 13:32:37,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 13:32:37,345 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 13:32:37,345 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,346 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 13:32:37,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,348 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,348 INFO L185 Difference]: Start difference. First operand has 65 places, 127 transitions, 378 flow. Second operand 3 states and 682 transitions. [2021-03-24 13:32:37,348 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 105 transitions, 316 flow [2021-03-24 13:32:37,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 105 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,350 INFO L241 Difference]: Finished difference. Result has 66 places, 105 transitions, 313 flow [2021-03-24 13:32:37,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=66, PETRI_TRANSITIONS=105} [2021-03-24 13:32:37,350 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -14 predicate places. [2021-03-24 13:32:37,350 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 105 transitions, 313 flow [2021-03-24 13:32:37,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,351 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,351 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 13:32:37,351 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1712896609, now seen corresponding path program 1 times [2021-03-24 13:32:37,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418306816] [2021-03-24 13:32:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:32:37,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:37,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418306816] [2021-03-24 13:32:37,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:37,367 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:32:37,367 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800503334] [2021-03-24 13:32:37,367 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:32:37,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:37,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:32:37,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:32:37,369 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 13:32:37,369 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 105 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,369 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:37,369 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 13:32:37,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:37,380 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-24 13:32:37,381 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-24 13:32:37,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 40 events. 0/40 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 10/50 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-24 13:32:37,381 INFO L132 encePairwiseOnDemand]: 226/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-03-24 13:32:37,381 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 40 transitions, 122 flow [2021-03-24 13:32:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:32:37,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:32:37,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2021-03-24 13:32:37,383 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2021-03-24 13:32:37,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 681 transitions. [2021-03-24 13:32:37,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 681 transitions. [2021-03-24 13:32:37,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:37,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 681 transitions. [2021-03-24 13:32:37,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,386 INFO L185 Difference]: Start difference. First operand has 66 places, 105 transitions, 313 flow. Second operand 3 states and 681 transitions. [2021-03-24 13:32:37,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 40 transitions, 122 flow [2021-03-24 13:32:37,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 40 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:37,387 INFO L241 Difference]: Finished difference. Result has 67 places, 40 transitions, 119 flow [2021-03-24 13:32:37,387 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=67, PETRI_TRANSITIONS=40} [2021-03-24 13:32:37,387 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -13 predicate places. [2021-03-24 13:32:37,387 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 40 transitions, 119 flow [2021-03-24 13:32:37,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:37,388 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:37,388 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:37,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 13:32:37,388 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:37,388 INFO L82 PathProgramCache]: Analyzing trace with hash -416277105, now seen corresponding path program 1 times [2021-03-24 13:32:37,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:37,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91519149] [2021-03-24 13:32:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:37,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:37,475 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:37,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:32:37,488 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:32:37,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:32:37,512 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:32:37,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:32:37,552 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:32:37,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:32:37,589 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:32:37,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:32:37,629 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:32:37,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:32:37,681 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 13:32:37,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 13:32:37,744 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 13:32:37,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:32:37,815 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.4 percent of original size [2021-03-24 13:32:37,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 13:32:37,965 INFO L142 QuantifierPusher]: treesize reduction 63, result has 58.0 percent of original size [2021-03-24 13:32:37,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 13:32:38,080 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-24 13:32:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-24 13:32:38,193 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 13:32:38,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 13:32:38,302 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:32:38,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:32:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:38,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91519149] [2021-03-24 13:32:38,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:38,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:32:38,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299555066] [2021-03-24 13:32:38,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:32:38,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:38,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:32:38,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:32:38,389 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:32:38,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 40 transitions, 119 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:38,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:38,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:32:38,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:42,167 INFO L129 PetriNetUnfolder]: 61443/74062 cut-off events. [2021-03-24 13:32:42,167 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:32:42,569 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147831 conditions, 74062 events. 61443/74062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4198. Compared 361876 event pairs, 20481 based on Foata normal form. 1/73084 useless extension candidates. Maximal degree in co-relation 147823. Up to 26625 conditions per place. [2021-03-24 13:32:43,027 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 90 selfloop transitions, 12 changer transitions 1/129 dead transitions. [2021-03-24 13:32:43,028 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 129 transitions, 503 flow [2021-03-24 13:32:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 13:32:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 13:32:43,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 13:32:43,034 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 13:32:43,034 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 13:32:43,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 13:32:43,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:43,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 13:32:43,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:43,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:43,046 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:43,046 INFO L185 Difference]: Start difference. First operand has 67 places, 40 transitions, 119 flow. Second operand 15 states and 3239 transitions. [2021-03-24 13:32:43,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 129 transitions, 503 flow [2021-03-24 13:32:43,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 129 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:43,048 INFO L241 Difference]: Finished difference. Result has 93 places, 51 transitions, 213 flow [2021-03-24 13:32:43,048 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=213, PETRI_PLACES=93, PETRI_TRANSITIONS=51} [2021-03-24 13:32:43,049 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 13 predicate places. [2021-03-24 13:32:43,049 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 51 transitions, 213 flow [2021-03-24 13:32:43,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:43,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:43,050 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:43,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 13:32:43,050 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:43,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:43,051 INFO L82 PathProgramCache]: Analyzing trace with hash 400787297, now seen corresponding path program 2 times [2021-03-24 13:32:43,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:43,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762966959] [2021-03-24 13:32:43,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:43,105 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:43,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:43,106 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:43,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:32:43,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:43,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:32:43,119 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:32:43,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:32:43,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:32:43,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:32:43,156 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:32:43,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:32:43,181 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:32:43,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:32:43,223 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:32:43,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:32:43,260 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:32:43,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:32:43,311 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:32:43,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:32:43,364 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 13:32:43,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 13:32:43,415 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-24 13:32:43,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-24 13:32:43,495 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 13:32:43,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 13:32:43,570 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:32:43,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:32:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:43,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762966959] [2021-03-24 13:32:43,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:43,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:32:43,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795984290] [2021-03-24 13:32:43,631 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:32:43,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:43,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:32:43,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:32:43,634 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:32:43,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 51 transitions, 213 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:43,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:43,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:32:43,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:51,994 INFO L129 PetriNetUnfolder]: 82982/114212 cut-off events. [2021-03-24 13:32:51,994 INFO L130 PetriNetUnfolder]: For 122886/123119 co-relation queries the response was YES. [2021-03-24 13:32:53,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323330 conditions, 114212 events. 82982/114212 cut-off events. For 122886/123119 co-relation queries the response was YES. Maximal size of possible extension queue 5315. Compared 783535 event pairs, 27651 based on Foata normal form. 1/113231 useless extension candidates. Maximal degree in co-relation 323309. Up to 36883 conditions per place. [2021-03-24 13:32:53,470 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 150 selfloop transitions, 21 changer transitions 3/200 dead transitions. [2021-03-24 13:32:53,470 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 200 transitions, 1289 flow [2021-03-24 13:32:53,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 13:32:53,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 13:32:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 13:32:53,476 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 13:32:53,476 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 13:32:53,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 13:32:53,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:53,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 13:32:53,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:53,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:53,487 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:53,487 INFO L185 Difference]: Start difference. First operand has 93 places, 51 transitions, 213 flow. Second operand 15 states and 3239 transitions. [2021-03-24 13:32:53,487 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 200 transitions, 1289 flow [2021-03-24 13:32:53,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 200 transitions, 1252 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-24 13:32:53,578 INFO L241 Difference]: Finished difference. Result has 117 places, 71 transitions, 439 flow [2021-03-24 13:32:53,579 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=439, PETRI_PLACES=117, PETRI_TRANSITIONS=71} [2021-03-24 13:32:53,579 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 37 predicate places. [2021-03-24 13:32:53,579 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 71 transitions, 439 flow [2021-03-24 13:32:53,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:53,580 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:53,580 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:32:53,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 13:32:53,580 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:32:53,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:53,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1051676889, now seen corresponding path program 3 times [2021-03-24 13:32:53,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:53,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734252064] [2021-03-24 13:32:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:53,661 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:53,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:53,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:53,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:32:53,668 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:53,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:32:53,677 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:32:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:32:53,689 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:32:53,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:32:53,706 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:32:53,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:32:53,728 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:32:53,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:32:53,757 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:32:53,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:32:53,791 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:32:53,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:32:53,833 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:32:53,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:32:53,884 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 13:32:53,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 13:32:53,944 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-24 13:32:53,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 13:32:54,014 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 13:32:54,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 13:32:54,098 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:32:54,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:32:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:54,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734252064] [2021-03-24 13:32:54,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:54,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:32:54,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366868667] [2021-03-24 13:32:54,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:32:54,171 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:54,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:32:54,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:32:54,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:32:54,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 71 transitions, 439 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:54,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:54,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:32:54,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:33:14,047 INFO L129 PetriNetUnfolder]: 124016/180624 cut-off events. [2021-03-24 13:33:14,047 INFO L130 PetriNetUnfolder]: For 512035/516426 co-relation queries the response was YES. [2021-03-24 13:33:16,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 662284 conditions, 180624 events. 124016/180624 cut-off events. For 512035/516426 co-relation queries the response was YES. Maximal size of possible extension queue 10377. Compared 1499116 event pairs, 29693 based on Foata normal form. 1/179633 useless extension candidates. Maximal degree in co-relation 662251. Up to 63529 conditions per place. [2021-03-24 13:33:17,061 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 152 selfloop transitions, 42 changer transitions 1/221 dead transitions. [2021-03-24 13:33:17,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 221 transitions, 1853 flow [2021-03-24 13:33:17,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 13:33:17,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 13:33:17,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 13:33:17,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 13:33:17,067 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 13:33:17,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 13:33:17,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:33:17,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 13:33:17,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:17,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:17,076 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:17,076 INFO L185 Difference]: Start difference. First operand has 117 places, 71 transitions, 439 flow. Second operand 15 states and 3239 transitions. [2021-03-24 13:33:17,077 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 221 transitions, 1853 flow [2021-03-24 13:33:29,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 221 transitions, 1785 flow, removed 27 selfloop flow, removed 3 redundant places. [2021-03-24 13:33:29,647 INFO L241 Difference]: Finished difference. Result has 140 places, 104 transitions, 916 flow [2021-03-24 13:33:29,648 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=916, PETRI_PLACES=140, PETRI_TRANSITIONS=104} [2021-03-24 13:33:29,648 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 60 predicate places. [2021-03-24 13:33:29,648 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 104 transitions, 916 flow [2021-03-24 13:33:29,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:29,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:33:29,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:33:29,649 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 13:33:29,649 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:33:29,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:33:29,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1855409807, now seen corresponding path program 4 times [2021-03-24 13:33:29,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:33:29,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366971191] [2021-03-24 13:33:29,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:33:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:33:29,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:29,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:33:29,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:29,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:33:29,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:29,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:33:29,736 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:33:29,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:33:29,749 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:33:29,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:33:29,765 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:33:29,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:33:29,788 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:33:29,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:33:29,816 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:33:29,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:33:29,861 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:33:29,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:33:29,911 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:33:29,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:33:29,958 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-24 13:33:29,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 13:33:30,008 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-24 13:33:30,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 13:33:30,084 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 13:33:30,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 13:33:30,155 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:33:30,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:33:30,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:33:30,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366971191] [2021-03-24 13:33:30,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:33:30,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:33:30,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149300073] [2021-03-24 13:33:30,216 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:33:30,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:33:30,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:33:30,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:33:30,218 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:33:30,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 104 transitions, 916 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:30,220 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:33:30,220 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:33:30,220 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:34:03,924 INFO L129 PetriNetUnfolder]: 169409/248969 cut-off events. [2021-03-24 13:34:03,924 INFO L130 PetriNetUnfolder]: For 1345372/1354226 co-relation queries the response was YES. [2021-03-24 13:34:07,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126667 conditions, 248969 events. 169409/248969 cut-off events. For 1345372/1354226 co-relation queries the response was YES. Maximal size of possible extension queue 15179. Compared 2208981 event pairs, 48412 based on Foata normal form. 1/247782 useless extension candidates. Maximal degree in co-relation 1126623. Up to 85386 conditions per place. [2021-03-24 13:34:08,491 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 196 selfloop transitions, 63 changer transitions 1/286 dead transitions. [2021-03-24 13:34:08,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 286 transitions, 3088 flow [2021-03-24 13:34:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 13:34:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 13:34:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 13:34:08,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 13:34:08,497 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 13:34:08,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 13:34:08,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:34:08,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 13:34:08,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:08,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:08,509 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:08,509 INFO L185 Difference]: Start difference. First operand has 140 places, 104 transitions, 916 flow. Second operand 15 states and 3239 transitions. [2021-03-24 13:34:08,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 286 transitions, 3088 flow [2021-03-24 13:34:37,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 286 transitions, 3009 flow, removed 28 selfloop flow, removed 2 redundant places. [2021-03-24 13:34:37,555 INFO L241 Difference]: Finished difference. Result has 164 places, 153 transitions, 1747 flow [2021-03-24 13:34:37,555 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1747, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2021-03-24 13:34:37,555 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 84 predicate places. [2021-03-24 13:34:37,556 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 1747 flow [2021-03-24 13:34:37,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:37,556 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:34:37,556 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:34:37,557 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 13:34:37,557 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:34:37,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:34:37,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1005917905, now seen corresponding path program 5 times [2021-03-24 13:34:37,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:34:37,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130865677] [2021-03-24 13:34:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:34:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:34:37,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:37,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:34:37,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:37,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:34:37,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:37,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:34:37,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:34:37,622 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:34:37,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:34:37,639 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:34:37,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:34:37,660 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:34:37,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:34:37,688 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:34:37,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:34:37,722 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 13:34:37,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 13:34:37,766 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-24 13:34:37,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 13:34:37,822 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 13:34:37,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 13:34:37,889 INFO L142 QuantifierPusher]: treesize reduction 72, result has 53.5 percent of original size [2021-03-24 13:34:37,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-24 13:34:37,950 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 13:34:37,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 13:34:38,025 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:34:38,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:34:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:34:38,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130865677] [2021-03-24 13:34:38,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:34:38,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:34:38,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543487397] [2021-03-24 13:34:38,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:34:38,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:34:38,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:34:38,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:34:38,103 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:34:38,104 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 1747 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:38,104 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:34:38,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:34:38,105 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:35:41,118 INFO L129 PetriNetUnfolder]: 234075/346652 cut-off events. [2021-03-24 13:35:41,118 INFO L130 PetriNetUnfolder]: For 3011443/3033348 co-relation queries the response was YES. [2021-03-24 13:35:47,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1849912 conditions, 346652 events. 234075/346652 cut-off events. For 3011443/3033348 co-relation queries the response was YES. Maximal size of possible extension queue 21379. Compared 3223481 event pairs, 73388 based on Foata normal form. 1/344911 useless extension candidates. Maximal degree in co-relation 1849856. Up to 118299 conditions per place. [2021-03-24 13:35:48,952 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 358 selfloop transitions, 62 changer transitions 1/447 dead transitions. [2021-03-24 13:35:48,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 447 transitions, 6008 flow [2021-03-24 13:35:48,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 13:35:48,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 13:35:48,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 13:35:48,959 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 13:35:48,959 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 13:35:48,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 13:35:48,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:35:48,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 13:35:48,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:48,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:48,968 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:48,968 INFO L185 Difference]: Start difference. First operand has 164 places, 153 transitions, 1747 flow. Second operand 15 states and 3239 transitions. [2021-03-24 13:35:48,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 447 transitions, 6008 flow [2021-03-24 13:37:59,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 447 transitions, 5907 flow, removed 35 selfloop flow, removed 2 redundant places. [2021-03-24 13:37:59,755 INFO L241 Difference]: Finished difference. Result has 188 places, 199 transitions, 2609 flow [2021-03-24 13:37:59,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1721, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2609, PETRI_PLACES=188, PETRI_TRANSITIONS=199} [2021-03-24 13:37:59,755 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 108 predicate places. [2021-03-24 13:37:59,755 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 199 transitions, 2609 flow [2021-03-24 13:37:59,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:37:59,756 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:37:59,756 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 13:37:59,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 13:37:59,756 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-24 13:37:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:37:59,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2016959907, now seen corresponding path program 6 times [2021-03-24 13:37:59,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:37:59,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788534466] [2021-03-24 13:37:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:37:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:37:59,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:37:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:37:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:37:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:37:59,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:37:59,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:37:59,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:37:59,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:37:59,816 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:37:59,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:37:59,833 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:37:59,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:37:59,854 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:37:59,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:37:59,884 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:37:59,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:37:59,916 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 13:37:59,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 13:37:59,977 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:37:59,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:38:00,029 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-24 13:38:00,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 13:38:00,092 INFO L142 QuantifierPusher]: treesize reduction 72, result has 55.3 percent of original size [2021-03-24 13:38:00,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-24 13:38:00,191 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 13:38:00,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 13:38:00,268 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 13:38:00,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 13:38:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:38:00,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788534466] [2021-03-24 13:38:00,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:38:00,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 13:38:00,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083286881] [2021-03-24 13:38:00,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 13:38:00,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:38:00,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 13:38:00,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 13:38:00,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 13:38:00,329 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 199 transitions, 2609 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:00,329 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:38:00,329 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 13:38:00,329 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand