/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-SemanticLbe.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 22:25:28,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 22:25:28,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 22:25:28,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 22:25:28,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 22:25:28,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 22:25:28,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 22:25:28,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 22:25:28,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 22:25:28,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 22:25:28,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 22:25:28,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 22:25:28,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 22:25:28,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 22:25:28,572 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 22:25:28,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 22:25:28,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 22:25:28,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 22:25:28,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 22:25:28,577 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 22:25:28,579 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 22:25:28,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 22:25:28,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 22:25:28,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 22:25:28,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 22:25:28,587 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 22:25:28,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 22:25:28,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 22:25:28,588 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 22:25:28,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 22:25:28,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 22:25:28,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 22:25:28,590 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 22:25:28,590 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 22:25:28,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 22:25:28,592 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 22:25:28,592 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-SemanticLbe.epf [2021-03-24 22:25:28,614 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 22:25:28,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 22:25:28,615 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 22:25:28,615 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 22:25:28,615 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 22:25:28,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 22:25:28,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 22:25:28,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 22:25:28,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 22:25:28,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 22:25:28,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 22:25:28,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 22:25:28,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 22:25:28,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 22:25:28,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 22:25:28,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 22:25:28,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 22:25:28,619 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 22:25:28,619 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 22:25:28,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 22:25:28,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 22:25:28,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 22:25:28,932 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 22:25:28,939 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 22:25:28,940 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-03-24 22:25:28,941 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-03-24 22:25:28,971 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 22:25:28,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 22:25:28,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 22:25:28,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 22:25:28,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 22:25:28,985 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 10:25:28" (1/1) ... [2021-03-24 22:25:28,991 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 10:25:28" (1/1) ... [2021-03-24 22:25:28,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 22:25:28,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 22:25:28,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 22:25:28,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 22:25:29,004 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,005 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,007 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,007 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,011 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,013 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,014 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 10:25:28" (1/1) ... [2021-03-24 22:25:29,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 22:25:29,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 22:25:29,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 22:25:29,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 22:25:29,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:25:28" (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 22:25:29,069 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-24 22:25:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-24 22:25:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-24 22:25:29,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-24 22:25:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-24 22:25:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-24 22:25:29,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-24 22:25:29,070 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-24 22:25:29,070 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-24 22:25:29,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-24 22:25:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-24 22:25:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-24 22:25:29,071 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-24 22:25:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-24 22:25:29,071 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-24 22:25:29,072 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-24 22:25:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-24 22:25:29,072 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-24 22:25:29,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-24 22:25:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 22:25:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 22:25:29,073 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-24 22:25:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-24 22:25:29,074 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-24 22:25:29,074 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-24 22:25:29,074 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-24 22:25:29,075 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-24 22:25:29,075 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-24 22:25:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-24 22:25:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-24 22:25:29,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-24 22:25:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-24 22:25:29,076 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-24 22:25:29,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-24 22:25:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-24 22:25:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-24 22:25:29,077 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-24 22:25:29,077 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-24 22:25:29,077 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-24 22:25:29,077 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-24 22:25:29,078 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-24 22:25:29,078 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-24 22:25:29,079 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 22:25:29,242 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 22:25:29,242 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 22:25:29,244 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 10:25:29 BoogieIcfgContainer [2021-03-24 22:25:29,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 22:25:29,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 22:25:29,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 22:25:29,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 22:25:29,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 10:25:28" (1/2) ... [2021-03-24 22:25:29,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4365e18e and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 10:25:29, skipping insertion in model container [2021-03-24 22:25:29,249 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 10:25:29" (2/2) ... [2021-03-24 22:25:29,250 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-03-24 22:25:29,255 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 22:25:29,259 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 22:25:29,259 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 22:25:29,547 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-03-24 22:25:29,565 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-03-24 22:25:29,582 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 22:25:29,582 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 22:25:29,582 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 22:25:29,582 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 22:25:29,582 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 22:25:29,582 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 22:25:29,582 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 22:25:29,582 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 22:25:29,597 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-03-24 22:25:34,265 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-03-24 22:25:34,265 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 22:25:34,592 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 22:25:34,592 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-03-24 22:25:35,023 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-03-24 22:25:35,025 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 22:25:35,043 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-24 22:25:35,047 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-24 22:25:35,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 209 transitions, 964 flow [2021-03-24 22:25:39,330 INFO L129 PetriNetUnfolder]: 45057/53288 cut-off events. [2021-03-24 22:25:39,330 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 22:25:39,595 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 22:25:40,261 INFO L142 LiptonReduction]: Number of co-enabled transitions 8424 [2021-03-24 22:25:40,610 INFO L154 LiptonReduction]: Checked pairs total: 2262 [2021-03-24 22:25:40,611 INFO L156 LiptonReduction]: Total number of compositions: 13 [2021-03-24 22:25:40,613 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5589 [2021-03-24 22:25:43,134 INFO L129 PetriNetUnfolder]: 45057/53274 cut-off events. [2021-03-24 22:25:43,134 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-24 22:25:43,135 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:43,135 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 22:25:43,136 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 22:25:43,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:43,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1397032023, now seen corresponding path program 1 times [2021-03-24 22:25:43,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:43,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176292068] [2021-03-24 22:25:43,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:43,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:43,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:43,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:43,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:43,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:43,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:43,276 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 22:25:43,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176292068] [2021-03-24 22:25:43,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:43,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:43,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058302163] [2021-03-24 22:25:43,284 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:43,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:43,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:43,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:43,299 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:43,303 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 22:25:43,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:43,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:43,304 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:46,522 INFO L129 PetriNetUnfolder]: 27225/32933 cut-off events. [2021-03-24 22:25:46,523 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-03-24 22:25:46,607 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 22:25:46,762 INFO L132 encePairwiseOnDemand]: 229/237 looper letters, 6 selfloop transitions, 1 changer transitions 0/189 dead transitions. [2021-03-24 22:25:46,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 189 transitions, 917 flow [2021-03-24 22:25:46,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:46,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:46,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:46,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:46,780 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:46,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:46,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:46,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:46,792 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 22:25:46,799 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 22:25:46,799 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 22:25:46,801 INFO L185 Difference]: Start difference. First operand has 80 places, 196 transitions, 938 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:46,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 189 transitions, 917 flow [2021-03-24 22:25:47,234 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 22:25:47,238 INFO L241 Difference]: Finished difference. Result has 56 places, 189 transitions, 555 flow [2021-03-24 22:25:47,240 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 22:25:47,241 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-03-24 22:25:47,241 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 189 transitions, 555 flow [2021-03-24 22:25:47,241 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 22:25:47,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:47,241 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 22:25:47,242 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 22:25:47,242 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 22:25:47,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:47,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1916037355, now seen corresponding path program 1 times [2021-03-24 22:25:47,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:47,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537331652] [2021-03-24 22:25:47,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:47,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:47,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:47,269 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:47,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:47,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:47,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:47,273 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 22:25:47,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537331652] [2021-03-24 22:25:47,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:47,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:47,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305411277] [2021-03-24 22:25:47,274 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:47,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:47,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:47,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:47,276 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:47,277 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 22:25:47,277 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:47,278 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:47,278 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:48,495 INFO L129 PetriNetUnfolder]: 27214/32921 cut-off events. [2021-03-24 22:25:48,496 INFO L130 PetriNetUnfolder]: For 2610/2610 co-relation queries the response was YES. [2021-03-24 22:25:48,572 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 22:25:48,690 INFO L132 encePairwiseOnDemand]: 235/237 looper letters, 12 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2021-03-24 22:25:48,691 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 188 transitions, 578 flow [2021-03-24 22:25:48,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:48,693 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:48,693 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:48,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:48,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:48,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:48,697 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 22:25:48,698 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 22:25:48,699 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 22:25:48,699 INFO L185 Difference]: Start difference. First operand has 56 places, 189 transitions, 555 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:48,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 188 transitions, 578 flow [2021-03-24 22:25:48,708 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 22:25:48,713 INFO L241 Difference]: Finished difference. Result has 57 places, 188 transitions, 553 flow [2021-03-24 22:25:48,716 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 22:25:48,717 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -23 predicate places. [2021-03-24 22:25:48,717 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 188 transitions, 553 flow [2021-03-24 22:25:48,717 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 22:25:48,717 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:48,717 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 22:25:48,718 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 22:25:48,718 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 22:25:48,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:48,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1008616503, now seen corresponding path program 1 times [2021-03-24 22:25:48,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:48,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169086010] [2021-03-24 22:25:48,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:48,764 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:48,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:48,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:48,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:48,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:48,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:48,769 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 22:25:48,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169086010] [2021-03-24 22:25:48,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:48,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:48,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518033441] [2021-03-24 22:25:48,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:48,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:48,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:48,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:48,773 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 22:25:48,773 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:48,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:48,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:49,850 INFO L129 PetriNetUnfolder]: 27094/32789 cut-off events. [2021-03-24 22:25:49,850 INFO L130 PetriNetUnfolder]: For 2609/2609 co-relation queries the response was YES. [2021-03-24 22:25:49,916 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 22:25:49,993 INFO L132 encePairwiseOnDemand]: 234/237 looper letters, 11 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-03-24 22:25:49,993 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 186 transitions, 571 flow [2021-03-24 22:25:49,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:49,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:49,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:49,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:49,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:49,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:49,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:49,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:49,997 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 22:25:49,998 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 22:25:49,999 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 22:25:49,999 INFO L185 Difference]: Start difference. First operand has 57 places, 188 transitions, 553 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:49,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 186 transitions, 571 flow [2021-03-24 22:25:50,003 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 22:25:50,005 INFO L241 Difference]: Finished difference. Result has 58 places, 186 transitions, 548 flow [2021-03-24 22:25:50,005 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 22:25:50,005 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -22 predicate places. [2021-03-24 22:25:50,005 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 186 transitions, 548 flow [2021-03-24 22:25:50,006 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 22:25:50,006 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:50,007 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 22:25:50,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 22:25:50,008 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 22:25:50,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:50,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1663597145, now seen corresponding path program 1 times [2021-03-24 22:25:50,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:50,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423174215] [2021-03-24 22:25:50,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:50,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:50,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:50,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:50,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:50,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:50,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:50,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423174215] [2021-03-24 22:25:50,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:50,051 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:50,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144071612] [2021-03-24 22:25:50,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:50,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:50,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:50,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:50,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:50,055 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 22:25:50,055 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:50,055 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:50,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:50,929 INFO L129 PetriNetUnfolder]: 20098/24770 cut-off events. [2021-03-24 22:25:50,929 INFO L130 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2021-03-24 22:25:50,978 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 22:25:51,047 INFO L132 encePairwiseOnDemand]: 230/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/180 dead transitions. [2021-03-24 22:25:51,048 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 180 transitions, 546 flow [2021-03-24 22:25:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:51,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:51,050 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:51,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:51,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,053 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 22:25:51,054 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 22:25:51,055 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 22:25:51,055 INFO L185 Difference]: Start difference. First operand has 58 places, 186 transitions, 548 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:51,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 180 transitions, 546 flow [2021-03-24 22:25:51,057 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 22:25:51,059 INFO L241 Difference]: Finished difference. Result has 59 places, 180 transitions, 531 flow [2021-03-24 22:25:51,060 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 22:25:51,060 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-03-24 22:25:51,060 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 180 transitions, 531 flow [2021-03-24 22:25:51,060 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 22:25:51,061 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:51,061 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 22:25:51,061 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 22:25:51,061 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 22:25:51,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:51,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1135598883, now seen corresponding path program 1 times [2021-03-24 22:25:51,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:51,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72234566] [2021-03-24 22:25:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:51,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:51,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:51,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72234566] [2021-03-24 22:25:51,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:51,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049720722] [2021-03-24 22:25:51,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:51,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:51,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:51,086 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 22:25:51,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:51,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:51,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:51,539 INFO L129 PetriNetUnfolder]: 10028/12809 cut-off events. [2021-03-24 22:25:51,539 INFO L130 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2021-03-24 22:25:51,563 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 22:25:51,598 INFO L132 encePairwiseOnDemand]: 228/237 looper letters, 5 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2021-03-24 22:25:51,599 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 172 transitions, 519 flow [2021-03-24 22:25:51,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:51,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:51,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:51,601 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:51,601 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:51,601 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,603 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 22:25:51,604 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 22:25:51,604 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 22:25:51,605 INFO L185 Difference]: Start difference. First operand has 59 places, 180 transitions, 531 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:51,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 172 transitions, 519 flow [2021-03-24 22:25:51,607 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 22:25:51,608 INFO L241 Difference]: Finished difference. Result has 60 places, 172 transitions, 508 flow [2021-03-24 22:25:51,608 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 22:25:51,609 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-03-24 22:25:51,609 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 172 transitions, 508 flow [2021-03-24 22:25:51,609 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 22:25:51,609 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:51,609 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 22:25:51,610 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 22:25:51,610 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 22:25:51,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:51,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1920693199, now seen corresponding path program 1 times [2021-03-24 22:25:51,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:51,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297003093] [2021-03-24 22:25:51,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:51,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:51,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,633 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 22:25:51,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297003093] [2021-03-24 22:25:51,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:51,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:51,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374014899] [2021-03-24 22:25:51,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:51,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:51,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:51,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:51,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:51,637 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 22:25:51,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:51,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:51,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:51,814 INFO L129 PetriNetUnfolder]: 3131/4198 cut-off events. [2021-03-24 22:25:51,815 INFO L130 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2021-03-24 22:25:51,820 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 22:25:51,828 INFO L132 encePairwiseOnDemand]: 224/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2021-03-24 22:25:51,828 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 148 transitions, 440 flow [2021-03-24 22:25:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:51,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-24 22:25:51,830 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-24 22:25:51,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:51,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-24 22:25:51,832 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 22:25:51,834 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 22:25:51,834 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 22:25:51,834 INFO L185 Difference]: Start difference. First operand has 60 places, 172 transitions, 508 flow. Second operand 3 states and 683 transitions. [2021-03-24 22:25:51,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 148 transitions, 440 flow [2021-03-24 22:25:51,836 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 22:25:51,837 INFO L241 Difference]: Finished difference. Result has 61 places, 148 transitions, 437 flow [2021-03-24 22:25:51,837 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 22:25:51,838 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-03-24 22:25:51,838 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 148 transitions, 437 flow [2021-03-24 22:25:51,838 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 22:25:51,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:51,838 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 22:25:51,839 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 22:25:51,839 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 22:25:51,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:51,839 INFO L82 PathProgramCache]: Analyzing trace with hash -287933799, now seen corresponding path program 1 times [2021-03-24 22:25:51,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:51,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909796326] [2021-03-24 22:25:51,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:51,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:51,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:51,864 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,866 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 22:25:51,866 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909796326] [2021-03-24 22:25:51,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:51,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:51,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342628719] [2021-03-24 22:25:51,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:51,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:51,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:51,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:51,868 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:51,869 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 22:25:51,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:51,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:51,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:51,926 INFO L129 PetriNetUnfolder]: 1080/1560 cut-off events. [2021-03-24 22:25:51,926 INFO L130 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2021-03-24 22:25:51,929 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 22:25:51,932 INFO L132 encePairwiseOnDemand]: 227/237 looper letters, 3 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2021-03-24 22:25:51,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 139 transitions, 418 flow [2021-03-24 22:25:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:51,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 22:25:51,934 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 22:25:51,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 22:25:51,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 22:25:51,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:51,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 22:25:51,935 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 22:25:51,937 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 22:25:51,937 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 22:25:51,937 INFO L185 Difference]: Start difference. First operand has 61 places, 148 transitions, 437 flow. Second operand 3 states and 682 transitions. [2021-03-24 22:25:51,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 139 transitions, 418 flow [2021-03-24 22:25:51,939 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 22:25:51,940 INFO L241 Difference]: Finished difference. Result has 62 places, 139 transitions, 411 flow [2021-03-24 22:25:51,940 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 22:25:51,940 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-03-24 22:25:51,940 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 139 transitions, 411 flow [2021-03-24 22:25:51,941 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 22:25:51,941 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:51,941 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 22:25:51,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 22:25:51,941 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 22:25:51,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:51,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1930560167, now seen corresponding path program 1 times [2021-03-24 22:25:51,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:51,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656457816] [2021-03-24 22:25:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:51,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:51,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:51,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:51,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656457816] [2021-03-24 22:25:51,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:51,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:51,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049943294] [2021-03-24 22:25:51,974 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:51,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:51,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:51,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:51,975 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:51,976 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 22:25:51,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:51,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:51,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:52,028 INFO L129 PetriNetUnfolder]: 940/1392 cut-off events. [2021-03-24 22:25:52,029 INFO L130 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2021-03-24 22:25:52,031 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 22:25:52,033 INFO L132 encePairwiseOnDemand]: 233/237 looper letters, 9 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-03-24 22:25:52,034 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 422 flow [2021-03-24 22:25:52,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:52,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:52,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 22:25:52,035 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 22:25:52,035 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:52,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,036 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 22:25:52,038 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 22:25:52,038 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 22:25:52,038 INFO L185 Difference]: Start difference. First operand has 62 places, 139 transitions, 411 flow. Second operand 3 states and 682 transitions. [2021-03-24 22:25:52,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 422 flow [2021-03-24 22:25:52,040 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 22:25:52,041 INFO L241 Difference]: Finished difference. Result has 63 places, 136 transitions, 403 flow [2021-03-24 22:25:52,041 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 22:25:52,041 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -17 predicate places. [2021-03-24 22:25:52,042 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 136 transitions, 403 flow [2021-03-24 22:25:52,042 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 22:25:52,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:52,042 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 22:25:52,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 22:25:52,042 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 22:25:52,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:52,043 INFO L82 PathProgramCache]: Analyzing trace with hash 1269193419, now seen corresponding path program 1 times [2021-03-24 22:25:52,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:52,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895296943] [2021-03-24 22:25:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:52,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:52,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,060 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 22:25:52,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895296943] [2021-03-24 22:25:52,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:52,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:52,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119758596] [2021-03-24 22:25:52,061 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:52,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:52,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:52,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:52,062 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:52,063 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 22:25:52,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:52,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:52,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:52,099 INFO L129 PetriNetUnfolder]: 611/972 cut-off events. [2021-03-24 22:25:52,100 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2021-03-24 22:25:52,101 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 22:25:52,103 INFO L132 encePairwiseOnDemand]: 231/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2021-03-24 22:25:52,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 404 flow [2021-03-24 22:25:52,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:52,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:52,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 22:25:52,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 22:25:52,104 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:52,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,106 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 22:25:52,107 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 22:25:52,107 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 22:25:52,107 INFO L185 Difference]: Start difference. First operand has 63 places, 136 transitions, 403 flow. Second operand 3 states and 682 transitions. [2021-03-24 22:25:52,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 404 flow [2021-03-24 22:25:52,108 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 22:25:52,110 INFO L241 Difference]: Finished difference. Result has 64 places, 131 transitions, 389 flow [2021-03-24 22:25:52,110 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 22:25:52,110 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -16 predicate places. [2021-03-24 22:25:52,110 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 131 transitions, 389 flow [2021-03-24 22:25:52,111 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 22:25:52,111 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:52,111 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 22:25:52,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 22:25:52,111 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 22:25:52,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:52,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1323234069, now seen corresponding path program 1 times [2021-03-24 22:25:52,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:52,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649796782] [2021-03-24 22:25:52,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:52,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:52,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,129 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 22:25:52,129 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649796782] [2021-03-24 22:25:52,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:52,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:52,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772602412] [2021-03-24 22:25:52,130 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:52,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:52,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:52,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:52,131 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:52,131 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 22:25:52,132 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:52,132 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:52,132 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:52,175 INFO L129 PetriNetUnfolder]: 506/832 cut-off events. [2021-03-24 22:25:52,175 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-24 22:25:52,177 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 22:25:52,178 INFO L132 encePairwiseOnDemand]: 232/237 looper letters, 8 selfloop transitions, 1 changer transitions 0/127 dead transitions. [2021-03-24 22:25:52,179 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 127 transitions, 395 flow [2021-03-24 22:25:52,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:52,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 22:25:52,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 22:25:52,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:52,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,182 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 22:25:52,183 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 22:25:52,183 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 22:25:52,184 INFO L185 Difference]: Start difference. First operand has 64 places, 131 transitions, 389 flow. Second operand 3 states and 682 transitions. [2021-03-24 22:25:52,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 127 transitions, 395 flow [2021-03-24 22:25:52,185 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 22:25:52,186 INFO L241 Difference]: Finished difference. Result has 65 places, 127 transitions, 378 flow [2021-03-24 22:25:52,187 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 22:25:52,187 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -15 predicate places. [2021-03-24 22:25:52,187 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 127 transitions, 378 flow [2021-03-24 22:25:52,187 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 22:25:52,187 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:52,187 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 22:25:52,187 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 22:25:52,188 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 22:25:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:52,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1494861249, now seen corresponding path program 1 times [2021-03-24 22:25:52,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:52,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231128650] [2021-03-24 22:25:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:52,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:52,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,213 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 22:25:52,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231128650] [2021-03-24 22:25:52,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:52,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:52,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395928158] [2021-03-24 22:25:52,213 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:52,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:52,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:52,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:52,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:52,216 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 22:25:52,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:52,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:52,216 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:52,233 INFO L129 PetriNetUnfolder]: 55/150 cut-off events. [2021-03-24 22:25:52,233 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-03-24 22:25:52,234 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 22:25:52,234 INFO L132 encePairwiseOnDemand]: 225/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/105 dead transitions. [2021-03-24 22:25:52,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 105 transitions, 316 flow [2021-03-24 22:25:52,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:52,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-24 22:25:52,237 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-24 22:25:52,237 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:52,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-24 22:25:52,238 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 22:25:52,240 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 22:25:52,240 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 22:25:52,240 INFO L185 Difference]: Start difference. First operand has 65 places, 127 transitions, 378 flow. Second operand 3 states and 682 transitions. [2021-03-24 22:25:52,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 105 transitions, 316 flow [2021-03-24 22:25:52,241 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 22:25:52,242 INFO L241 Difference]: Finished difference. Result has 66 places, 105 transitions, 313 flow [2021-03-24 22:25:52,243 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 22:25:52,243 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -14 predicate places. [2021-03-24 22:25:52,243 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 105 transitions, 313 flow [2021-03-24 22:25:52,243 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 22:25:52,243 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:52,243 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 22:25:52,243 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 22:25:52,244 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 22:25:52,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:52,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1712896609, now seen corresponding path program 1 times [2021-03-24 22:25:52,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:52,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901729409] [2021-03-24 22:25:52,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:52,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:52,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 22:25:52,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,276 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 22:25:52,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901729409] [2021-03-24 22:25:52,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:52,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 22:25:52,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832878896] [2021-03-24 22:25:52,277 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 22:25:52,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:52,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 22:25:52,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 22:25:52,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-24 22:25:52,279 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 22:25:52,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:52,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-24 22:25:52,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:52,291 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-24 22:25:52,291 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-24 22:25:52,292 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 22:25:52,292 INFO L132 encePairwiseOnDemand]: 226/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-03-24 22:25:52,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 40 transitions, 122 flow [2021-03-24 22:25:52,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 22:25:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 22:25:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2021-03-24 22:25:52,294 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2021-03-24 22:25:52,294 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 681 transitions. [2021-03-24 22:25:52,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 681 transitions. [2021-03-24 22:25:52,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:52,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 681 transitions. [2021-03-24 22:25:52,295 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 22:25:52,296 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 22:25:52,297 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 22:25:52,297 INFO L185 Difference]: Start difference. First operand has 66 places, 105 transitions, 313 flow. Second operand 3 states and 681 transitions. [2021-03-24 22:25:52,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 40 transitions, 122 flow [2021-03-24 22:25:52,297 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 22:25:52,298 INFO L241 Difference]: Finished difference. Result has 67 places, 40 transitions, 119 flow [2021-03-24 22:25:52,298 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 22:25:52,299 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, -13 predicate places. [2021-03-24 22:25:52,299 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 40 transitions, 119 flow [2021-03-24 22:25:52,299 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 22:25:52,299 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:52,299 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 22:25:52,300 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 22:25:52,300 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 22:25:52,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:52,300 INFO L82 PathProgramCache]: Analyzing trace with hash -416277105, now seen corresponding path program 1 times [2021-03-24 22:25:52,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:52,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116480009] [2021-03-24 22:25:52,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:52,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:52,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:52,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:25:52,510 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:25:52,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:25:52,547 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:25:52,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:25:52,575 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:25:52,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:25:52,603 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:25:52,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:25:52,635 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 22:25:52,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 22:25:52,693 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 22:25:52,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 22:25:52,763 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-24 22:25:52,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 22:25:52,839 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.4 percent of original size [2021-03-24 22:25:52,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 22:25:52,932 INFO L142 QuantifierPusher]: treesize reduction 63, result has 58.0 percent of original size [2021-03-24 22:25:52,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 22:25:53,046 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-24 22:25:53,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-24 22:25:53,165 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 22:25:53,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 22:25:53,266 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:25:53,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:25:53,344 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 22:25:53,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116480009] [2021-03-24 22:25:53,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:53,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:25:53,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84671481] [2021-03-24 22:25:53,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:25:53,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:53,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:25:53,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:25:53,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:25:53,352 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 22:25:53,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:53,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:25:53,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:25:57,260 INFO L129 PetriNetUnfolder]: 61443/74062 cut-off events. [2021-03-24 22:25:57,261 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 22:25:57,954 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 22:25:58,144 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 90 selfloop transitions, 12 changer transitions 1/129 dead transitions. [2021-03-24 22:25:58,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 129 transitions, 503 flow [2021-03-24 22:25:58,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 22:25:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 22:25:58,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 22:25:58,150 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 22:25:58,150 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 22:25:58,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 22:25:58,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:25:58,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 22:25:58,156 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 22:25:58,161 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 22:25:58,162 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 22:25:58,162 INFO L185 Difference]: Start difference. First operand has 67 places, 40 transitions, 119 flow. Second operand 15 states and 3239 transitions. [2021-03-24 22:25:58,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 129 transitions, 503 flow [2021-03-24 22:25:58,163 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 22:25:58,165 INFO L241 Difference]: Finished difference. Result has 93 places, 51 transitions, 213 flow [2021-03-24 22:25:58,165 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 22:25:58,165 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 13 predicate places. [2021-03-24 22:25:58,165 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 51 transitions, 213 flow [2021-03-24 22:25:58,167 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 22:25:58,167 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:25:58,167 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 22:25:58,167 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 22:25:58,167 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 22:25:58,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:25:58,168 INFO L82 PathProgramCache]: Analyzing trace with hash 400787297, now seen corresponding path program 2 times [2021-03-24 22:25:58,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:25:58,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524935355] [2021-03-24 22:25:58,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:25:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:25:58,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:58,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:25:58,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:58,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:25:58,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:25:58,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:25:58,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:25:58,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:25:58,292 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:25:58,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:25:58,310 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:25:58,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:25:58,336 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:25:58,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:25:58,370 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:25:58,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:25:58,418 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:25:58,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:25:58,482 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 22:25:58,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 22:25:58,540 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:25:58,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:25:58,598 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-24 22:25:58,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-24 22:25:58,661 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 22:25:58,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 22:25:58,737 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:25:58,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:25:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:25:58,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524935355] [2021-03-24 22:25:58,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:25:58,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:25:58,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087739835] [2021-03-24 22:25:58,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:25:58,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:25:58,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:25:58,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:25:58,819 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:25:58,822 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 22:25:58,822 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:25:58,822 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:25:58,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:26:07,589 INFO L129 PetriNetUnfolder]: 82982/114212 cut-off events. [2021-03-24 22:26:07,589 INFO L130 PetriNetUnfolder]: For 122886/123119 co-relation queries the response was YES. [2021-03-24 22:26:08,465 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 22:26:08,837 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 150 selfloop transitions, 21 changer transitions 3/200 dead transitions. [2021-03-24 22:26:08,837 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 200 transitions, 1289 flow [2021-03-24 22:26:08,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 22:26:08,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 22:26:08,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 22:26:08,843 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 22:26:08,843 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 22:26:08,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 22:26:08,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:26:08,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 22:26:08,849 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 22:26:08,854 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 22:26:08,855 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 22:26:08,855 INFO L185 Difference]: Start difference. First operand has 93 places, 51 transitions, 213 flow. Second operand 15 states and 3239 transitions. [2021-03-24 22:26:08,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 200 transitions, 1289 flow [2021-03-24 22:26:08,949 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 22:26:08,953 INFO L241 Difference]: Finished difference. Result has 117 places, 71 transitions, 439 flow [2021-03-24 22:26:08,953 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 22:26:08,953 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 37 predicate places. [2021-03-24 22:26:08,953 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 71 transitions, 439 flow [2021-03-24 22:26:08,954 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 22:26:08,954 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:26:08,954 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 22:26:08,954 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 22:26:08,954 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 22:26:08,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:26:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1051676889, now seen corresponding path program 3 times [2021-03-24 22:26:08,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:26:08,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216431820] [2021-03-24 22:26:08,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:26:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:26:09,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:09,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:26:09,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:09,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:26:09,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:09,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:26:09,021 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:26:09,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:26:09,034 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:26:09,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:26:09,053 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:26:09,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:26:09,077 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:26:09,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:26:09,107 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:26:09,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:26:09,144 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:26:09,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:26:09,196 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 22:26:09,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 22:26:09,256 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:26:09,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:26:09,325 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-24 22:26:09,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 22:26:09,404 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 22:26:09,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 22:26:09,480 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:26:09,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:26:09,545 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 22:26:09,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216431820] [2021-03-24 22:26:09,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:26:09,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:26:09,545 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503406534] [2021-03-24 22:26:09,545 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:26:09,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:26:09,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:26:09,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:26:09,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:26:09,554 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 22:26:09,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:26:09,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:26:09,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:26:28,131 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-03-24 22:26:30,082 INFO L129 PetriNetUnfolder]: 124016/180624 cut-off events. [2021-03-24 22:26:30,083 INFO L130 PetriNetUnfolder]: For 512035/516426 co-relation queries the response was YES. [2021-03-24 22:26:31,912 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 22:26:32,632 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 152 selfloop transitions, 42 changer transitions 1/221 dead transitions. [2021-03-24 22:26:32,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 221 transitions, 1853 flow [2021-03-24 22:26:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 22:26:32,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 22:26:32,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 22:26:32,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 22:26:32,638 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 22:26:32,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 22:26:32,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:26:32,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 22:26:32,643 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 22:26:32,647 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 22:26:32,648 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 22:26:32,648 INFO L185 Difference]: Start difference. First operand has 117 places, 71 transitions, 439 flow. Second operand 15 states and 3239 transitions. [2021-03-24 22:26:32,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 221 transitions, 1853 flow [2021-03-24 22:26:41,324 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 22:26:41,327 INFO L241 Difference]: Finished difference. Result has 140 places, 104 transitions, 916 flow [2021-03-24 22:26:41,327 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 22:26:41,327 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 60 predicate places. [2021-03-24 22:26:41,327 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 104 transitions, 916 flow [2021-03-24 22:26:41,328 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 22:26:41,328 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:26:41,328 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 22:26:41,328 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 22:26:41,328 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 22:26:41,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:26:41,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1855409807, now seen corresponding path program 4 times [2021-03-24 22:26:41,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:26:41,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434115389] [2021-03-24 22:26:41,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:26:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:26:41,393 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:41,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:26:41,394 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:41,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:26:41,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:26:41,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:26:41,407 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 22:26:41,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 22:26:41,420 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 22:26:41,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 22:26:41,438 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 22:26:41,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 22:26:41,460 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 22:26:41,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 22:26:41,489 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 22:26:41,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 22:26:41,521 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 22:26:41,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 22:26:41,569 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 22:26:41,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 22:26:41,620 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-24 22:26:41,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-24 22:26:41,681 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-24 22:26:41,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-24 22:26:41,744 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-24 22:26:41,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-24 22:26:41,809 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:26:41,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:26:41,901 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 22:26:41,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434115389] [2021-03-24 22:26:41,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:26:41,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:26:41,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210029987] [2021-03-24 22:26:41,903 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:26:41,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:26:41,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:26:41,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:26:41,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:26:41,908 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 22:26:41,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:26:41,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:26:41,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:27:16,030 INFO L129 PetriNetUnfolder]: 169409/248969 cut-off events. [2021-03-24 22:27:16,030 INFO L130 PetriNetUnfolder]: For 1345372/1354226 co-relation queries the response was YES. [2021-03-24 22:27:18,825 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 22:27:20,171 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 196 selfloop transitions, 63 changer transitions 1/286 dead transitions. [2021-03-24 22:27:20,172 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 286 transitions, 3088 flow [2021-03-24 22:27:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 22:27:20,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 22:27:20,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 22:27:20,175 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 22:27:20,176 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 22:27:20,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 22:27:20,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:27:20,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 22:27:20,181 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 22:27:20,185 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 22:27:20,185 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 22:27:20,185 INFO L185 Difference]: Start difference. First operand has 140 places, 104 transitions, 916 flow. Second operand 15 states and 3239 transitions. [2021-03-24 22:27:20,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 286 transitions, 3088 flow [2021-03-24 22:27:47,908 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 22:27:47,912 INFO L241 Difference]: Finished difference. Result has 164 places, 153 transitions, 1747 flow [2021-03-24 22:27:47,912 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 22:27:47,912 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 84 predicate places. [2021-03-24 22:27:47,913 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 1747 flow [2021-03-24 22:27:47,913 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 22:27:47,913 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:27:47,913 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 22:27:47,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 22:27:47,913 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 22:27:47,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:27:47,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1005917905, now seen corresponding path program 5 times [2021-03-24 22:27:47,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:27:47,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560128749] [2021-03-24 22:27:47,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:27:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:27:47,953 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:27:47,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:27:47,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:27:47,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:27:47,959 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:27:47,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:27:47,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:27:47,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:27:47,979 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:27:47,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:27:47,995 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:27:47,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:27:48,016 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 22:27:48,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 22:27:48,044 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 22:27:48,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 22:27:48,077 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 22:27:48,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 22:27:48,120 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-24 22:27:48,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 22:27:48,175 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 22:27:48,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 22:27:48,241 INFO L142 QuantifierPusher]: treesize reduction 72, result has 53.5 percent of original size [2021-03-24 22:27:48,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-24 22:27:48,335 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 22:27:48,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 22:27:48,415 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:27:48,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:27:48,487 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 22:27:48,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560128749] [2021-03-24 22:27:48,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:27:48,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:27:48,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422111260] [2021-03-24 22:27:48,489 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:27:48,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:27:48,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:27:48,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:27:48,492 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:27:48,493 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 22:27:48,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:27:48,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:27:48,493 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:28:50,600 INFO L129 PetriNetUnfolder]: 234075/346652 cut-off events. [2021-03-24 22:28:50,600 INFO L130 PetriNetUnfolder]: For 3011443/3033348 co-relation queries the response was YES. [2021-03-24 22:28:56,136 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 22:28:58,046 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 358 selfloop transitions, 62 changer transitions 1/447 dead transitions. [2021-03-24 22:28:58,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 447 transitions, 6008 flow [2021-03-24 22:28:58,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 22:28:58,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 22:28:58,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-24 22:28:58,051 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-24 22:28:58,051 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-24 22:28:58,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-24 22:28:58,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 22:28:58,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-24 22:28:58,055 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 22:28:58,059 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 22:28:58,060 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 22:28:58,060 INFO L185 Difference]: Start difference. First operand has 164 places, 153 transitions, 1747 flow. Second operand 15 states and 3239 transitions. [2021-03-24 22:28:58,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 447 transitions, 6008 flow [2021-03-24 22:31:19,994 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 22:31:19,998 INFO L241 Difference]: Finished difference. Result has 188 places, 199 transitions, 2609 flow [2021-03-24 22:31:19,998 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 22:31:19,999 INFO L343 CegarLoopForPetriNet]: 80 programPoint places, 108 predicate places. [2021-03-24 22:31:19,999 INFO L480 AbstractCegarLoop]: Abstraction has has 188 places, 199 transitions, 2609 flow [2021-03-24 22:31:19,999 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 22:31:20,000 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 22:31:20,000 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 22:31:20,000 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 22:31:20,000 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 22:31:20,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 22:31:20,000 INFO L82 PathProgramCache]: Analyzing trace with hash 2016959907, now seen corresponding path program 6 times [2021-03-24 22:31:20,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 22:31:20,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678207503] [2021-03-24 22:31:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 22:31:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 22:31:20,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:31:20,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 22:31:20,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:31:20,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 22:31:20,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:31:20,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 22:31:20,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 22:31:20,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 22:31:20,062 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 22:31:20,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 22:31:20,079 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 22:31:20,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 22:31:20,101 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 22:31:20,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 22:31:20,128 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 22:31:20,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 22:31:20,164 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 22:31:20,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 22:31:20,209 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 22:31:20,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 22:31:20,265 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-24 22:31:20,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 22:31:20,334 INFO L142 QuantifierPusher]: treesize reduction 72, result has 55.3 percent of original size [2021-03-24 22:31:20,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-03-24 22:31:20,436 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-24 22:31:20,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-24 22:31:20,504 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-24 22:31:20,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-24 22:31:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 22:31:20,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678207503] [2021-03-24 22:31:20,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 22:31:20,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-24 22:31:20,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127434346] [2021-03-24 22:31:20,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-24 22:31:20,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 22:31:20,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-24 22:31:20,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-24 22:31:20,583 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-24 22:31:20,585 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 22:31:20,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 22:31:20,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-24 22:31:20,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 22:33:15,409 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52