/usr/bin/java -Xmx8000000000 -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-NoLbe-OGIterative-CovSimpl.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2cf4d3f9dd5fed411db405f577e28237a543b59a-2cf4d3f [2021-08-13 07:43:28,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-13 07:43:28,854 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-13 07:43:28,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-13 07:43:28,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-13 07:43:28,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-13 07:43:28,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-13 07:43:28,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-13 07:43:28,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-13 07:43:28,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-13 07:43:28,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-13 07:43:28,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-13 07:43:28,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-13 07:43:28,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-13 07:43:28,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-13 07:43:28,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-13 07:43:28,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-13 07:43:28,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-13 07:43:28,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-13 07:43:28,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-13 07:43:28,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-13 07:43:28,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-13 07:43:28,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-13 07:43:28,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-13 07:43:28,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-13 07:43:28,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-13 07:43:28,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-13 07:43:28,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-13 07:43:28,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-13 07:43:28,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-13 07:43:28,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-13 07:43:28,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-13 07:43:28,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-13 07:43:28,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-13 07:43:28,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-13 07:43:28,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-13 07:43:28,926 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-NoLbe-OGIterative-CovSimpl.epf [2021-08-13 07:43:28,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-13 07:43:28,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-13 07:43:28,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * Use SBE=true [2021-08-13 07:43:28,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-13 07:43:28,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-13 07:43:28,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-13 07:43:28,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-13 07:43:28,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-13 07:43:28,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Compute cosets for OwickiGries annotation iteratively=true [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-13 07:43:28,958 INFO L138 SettingsManager]: * Simplify away covered predicates in OwickiGries annotation=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-13 07:43:29,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-13 07:43:29,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-13 07:43:29,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-13 07:43:29,207 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-13 07:43:29,213 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-13 07:43:29,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-08-13 07:43:29,214 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-08-13 07:43:29,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-13 07:43:29,231 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-13 07:43:29,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-13 07:43:29,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-13 07:43:29,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-13 07:43:29,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-13 07:43:29,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-13 07:43:29,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-13 07:43:29,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-13 07:43:29,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/1) ... [2021-08-13 07:43:29,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-13 07:43:29,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-13 07:43:29,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-13 07:43:29,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-13 07:43:29,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (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 [2021-08-13 07:43:29,317 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-08-13 07:43:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-08-13 07:43:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-08-13 07:43:29,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-08-13 07:43:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-08-13 07:43:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-08-13 07:43:29,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-08-13 07:43:29,318 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-08-13 07:43:29,318 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-08-13 07:43:29,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-08-13 07:43:29,319 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-08-13 07:43:29,319 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-08-13 07:43:29,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-08-13 07:43:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-08-13 07:43:29,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-08-13 07:43:29,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-08-13 07:43:29,320 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-08-13 07:43:29,320 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-08-13 07:43:29,320 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-13 07:43:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-13 07:43:29,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-13 07:43:29,321 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-08-13 07:43:29,321 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-08-13 07:43:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-08-13 07:43:29,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-08-13 07:43:29,322 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-08-13 07:43:29,322 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-08-13 07:43:29,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-08-13 07:43:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-08-13 07:43:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-08-13 07:43:29,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-08-13 07:43:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-08-13 07:43:29,323 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-08-13 07:43:29,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-08-13 07:43:29,323 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-08-13 07:43:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-08-13 07:43:29,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-08-13 07:43:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-08-13 07:43:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-08-13 07:43:29,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-08-13 07:43:29,324 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-08-13 07:43:29,324 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-08-13 07:43:29,325 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-13 07:43:29,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-13 07:43:29,498 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-13 07:43:29,499 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:43:29 BoogieIcfgContainer [2021-08-13 07:43:29,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-13 07:43:29,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-13 07:43:29,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-13 07:43:29,502 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-13 07:43:29,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.08 07:43:29" (1/2) ... [2021-08-13 07:43:29,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e239af3 and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.08 07:43:29, skipping insertion in model container [2021-08-13 07:43:29,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.08 07:43:29" (2/2) ... [2021-08-13 07:43:29,503 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-08-13 07:43:29,507 INFO L206 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-13 07:43:29,507 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-13 07:43:29,507 INFO L445 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-13 07:43:29,676 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-08-13 07:43:29,691 INFO L255 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-08-13 07:43:29,717 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-08-13 07:43:29,717 INFO L379 AbstractCegarLoop]: Hoare is false [2021-08-13 07:43:29,717 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-08-13 07:43:29,717 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-13 07:43:29,717 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-13 07:43:29,717 INFO L383 AbstractCegarLoop]: Difference is false [2021-08-13 07:43:29,717 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-13 07:43:29,717 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-08-13 07:43:29,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-08-13 07:43:33,217 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-08-13 07:43:33,217 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-08-13 07:43:33,487 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. [2021-08-13 07:43:33,488 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-08-13 07:43:33,759 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-08-13 07:43:36,734 INFO L129 PetriNetUnfolder]: 45057/53287 cut-off events. [2021-08-13 07:43:36,734 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-08-13 07:43:36,734 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:36,735 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:36,735 INFO L430 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]=== [2021-08-13 07:43:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:36,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1684891859, now seen corresponding path program 1 times [2021-08-13 07:43:36,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:36,744 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330240198] [2021-08-13 07:43:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:36,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:36,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:36,841 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:36,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:36,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:36,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:36,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:36,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330240198] [2021-08-13 07:43:36,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330240198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:36,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:36,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:36,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783946349] [2021-08-13 07:43:36,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:36,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:36,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:36,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:36,866 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:36,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 209 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:36,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:36,869 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:36,869 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:38,890 INFO L129 PetriNetUnfolder]: 27225/32946 cut-off events. [2021-08-13 07:43:38,890 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-08-13 07:43:38,991 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67480 conditions, 32946 events. 27225/32946 cut-off events. For 43609/43609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 155229 event pairs, 0 based on Foata normal form. 2510/35456 useless extension candidates. Maximal degree in co-relation 49193. Up to 6435 conditions per place. [2021-08-13 07:43:39,164 INFO L132 encePairwiseOnDemand]: 216/224 looper letters, 6 selfloop transitions, 1 changer transitions 0/202 dead transitions. [2021-08-13 07:43:39,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 202 transitions, 943 flow [2021-08-13 07:43:39,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:39,179 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:39,179 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:39,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:39,185 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:39,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:39,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:39,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:39,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:39,197 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 2 predicate places. [2021-08-13 07:43:39,197 INFO L482 AbstractCegarLoop]: Abstraction has has 95 places, 202 transitions, 943 flow [2021-08-13 07:43:39,198 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:39,198 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:39,198 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:39,199 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-13 07:43:39,199 INFO L430 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]=== [2021-08-13 07:43:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:39,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1829449133, now seen corresponding path program 1 times [2021-08-13 07:43:39,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:39,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846708594] [2021-08-13 07:43:39,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:39,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:39,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:39,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:39,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:39,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:39,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:39,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:39,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:39,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846708594] [2021-08-13 07:43:39,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846708594] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:39,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:39,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:39,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65852616] [2021-08-13 07:43:39,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:39,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:39,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:39,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:39,261 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:39,262 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 202 transitions, 943 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:39,262 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:39,262 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:39,262 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:40,977 INFO L129 PetriNetUnfolder]: 27214/32934 cut-off events. [2021-08-13 07:43:40,977 INFO L130 PetriNetUnfolder]: For 41289/41289 co-relation queries the response was YES. [2021-08-13 07:43:41,061 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70067 conditions, 32934 events. 27214/32934 cut-off events. For 41289/41289 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 159277 event pairs, 0 based on Foata normal form. 1/32935 useless extension candidates. Maximal degree in co-relation 51216. Up to 6435 conditions per place. [2021-08-13 07:43:41,206 INFO L132 encePairwiseOnDemand]: 222/224 looper letters, 12 selfloop transitions, 1 changer transitions 0/201 dead transitions. [2021-08-13 07:43:41,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 201 transitions, 964 flow [2021-08-13 07:43:41,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:41,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:41,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:41,208 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:41,208 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:41,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:41,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:41,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:41,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:41,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:41,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:41,211 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 4 predicate places. [2021-08-13 07:43:41,211 INFO L482 AbstractCegarLoop]: Abstraction has has 97 places, 201 transitions, 964 flow [2021-08-13 07:43:41,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:41,212 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:41,212 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:41,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-13 07:43:41,212 INFO L430 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]=== [2021-08-13 07:43:41,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:41,212 INFO L82 PathProgramCache]: Analyzing trace with hash -456989215, now seen corresponding path program 1 times [2021-08-13 07:43:41,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:41,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831592069] [2021-08-13 07:43:41,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:41,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:41,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:41,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:41,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:41,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:41,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:41,238 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:41,238 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831592069] [2021-08-13 07:43:41,238 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831592069] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:41,238 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:41,238 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:41,239 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188594009] [2021-08-13 07:43:41,239 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:41,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:41,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:41,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:41,240 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:41,240 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 201 transitions, 964 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:41,240 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:41,240 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:41,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:42,002 INFO L129 PetriNetUnfolder]: 11947/14894 cut-off events. [2021-08-13 07:43:42,002 INFO L130 PetriNetUnfolder]: For 26175/26175 co-relation queries the response was YES. [2021-08-13 07:43:42,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31988 conditions, 14894 events. 11947/14894 cut-off events. For 26175/26175 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 70095 event pairs, 0 based on Foata normal form. 2310/17204 useless extension candidates. Maximal degree in co-relation 29298. Up to 2772 conditions per place. [2021-08-13 07:43:42,133 INFO L132 encePairwiseOnDemand]: 214/224 looper letters, 4 selfloop transitions, 1 changer transitions 0/192 dead transitions. [2021-08-13 07:43:42,134 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 192 transitions, 929 flow [2021-08-13 07:43:42,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:42,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:42,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:42,139 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:42,139 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:42,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,141 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,142 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,142 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 6 predicate places. [2021-08-13 07:43:42,142 INFO L482 AbstractCegarLoop]: Abstraction has has 99 places, 192 transitions, 929 flow [2021-08-13 07:43:42,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,142 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:42,143 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:42,143 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-13 07:43:42,143 INFO L430 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]=== [2021-08-13 07:43:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:42,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1995870537, now seen corresponding path program 1 times [2021-08-13 07:43:42,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:42,143 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972520336] [2021-08-13 07:43:42,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:42,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:42,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:42,160 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:42,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:42,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:42,163 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:42,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972520336] [2021-08-13 07:43:42,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972520336] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:42,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:42,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:42,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526806707] [2021-08-13 07:43:42,164 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:42,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:42,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:42,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:42,165 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:42,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 192 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:42,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:42,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:42,799 INFO L129 PetriNetUnfolder]: 9388/11949 cut-off events. [2021-08-13 07:43:42,799 INFO L130 PetriNetUnfolder]: For 18706/18706 co-relation queries the response was YES. [2021-08-13 07:43:42,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26725 conditions, 11949 events. 9388/11949 cut-off events. For 18706/18706 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 57628 event pairs, 0 based on Foata normal form. 385/12334 useless extension candidates. Maximal degree in co-relation 23966. Up to 2310 conditions per place. [2021-08-13 07:43:42,881 INFO L132 encePairwiseOnDemand]: 218/224 looper letters, 8 selfloop transitions, 1 changer transitions 0/187 dead transitions. [2021-08-13 07:43:42,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 187 transitions, 922 flow [2021-08-13 07:43:42,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:42,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:42,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:42,883 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:42,883 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:42,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:42,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,886 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,886 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 8 predicate places. [2021-08-13 07:43:42,886 INFO L482 AbstractCegarLoop]: Abstraction has has 101 places, 187 transitions, 922 flow [2021-08-13 07:43:42,886 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,886 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:42,887 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:42,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-13 07:43:42,887 INFO L430 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]=== [2021-08-13 07:43:42,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:42,887 INFO L82 PathProgramCache]: Analyzing trace with hash -31186223, now seen corresponding path program 1 times [2021-08-13 07:43:42,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:42,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939374969] [2021-08-13 07:43:42,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:42,901 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:42,902 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:42,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:42,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:42,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:42,905 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:42,905 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939374969] [2021-08-13 07:43:42,905 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939374969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:42,905 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:42,906 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:42,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917163734] [2021-08-13 07:43:42,906 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:42,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:42,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:42,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:42,907 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:42,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 187 transitions, 922 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:42,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:42,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:42,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:43,494 INFO L129 PetriNetUnfolder]: 8552/10983 cut-off events. [2021-08-13 07:43:43,494 INFO L130 PetriNetUnfolder]: For 18549/18549 co-relation queries the response was YES. [2021-08-13 07:43:43,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25583 conditions, 10983 events. 8552/10983 cut-off events. For 18549/18549 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 52718 event pairs, 0 based on Foata normal form. 129/11112 useless extension candidates. Maximal degree in co-relation 22755. Up to 2310 conditions per place. [2021-08-13 07:43:43,569 INFO L132 encePairwiseOnDemand]: 219/224 looper letters, 9 selfloop transitions, 1 changer transitions 0/183 dead transitions. [2021-08-13 07:43:43,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 183 transitions, 922 flow [2021-08-13 07:43:43,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:43,571 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:43,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:43,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,574 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,574 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,574 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2021-08-13 07:43:43,574 INFO L482 AbstractCegarLoop]: Abstraction has has 103 places, 183 transitions, 922 flow [2021-08-13 07:43:43,575 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,575 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:43,575 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:43,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-13 07:43:43,575 INFO L430 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]=== [2021-08-13 07:43:43,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:43,575 INFO L82 PathProgramCache]: Analyzing trace with hash 515197517, now seen corresponding path program 1 times [2021-08-13 07:43:43,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:43,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944469575] [2021-08-13 07:43:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:43,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:43,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:43,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:43,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:43,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944469575] [2021-08-13 07:43:43,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944469575] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:43,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:43,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:43,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357731309] [2021-08-13 07:43:43,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:43,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:43,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:43,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:43,594 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:43,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 183 transitions, 922 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:43,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:43,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:43,903 INFO L129 PetriNetUnfolder]: 2836/3871 cut-off events. [2021-08-13 07:43:43,903 INFO L130 PetriNetUnfolder]: For 9071/9071 co-relation queries the response was YES. [2021-08-13 07:43:43,913 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9114 conditions, 3871 events. 2836/3871 cut-off events. For 9071/9071 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 18282 event pairs, 0 based on Foata normal form. 838/4709 useless extension candidates. Maximal degree in co-relation 8469. Up to 840 conditions per place. [2021-08-13 07:43:43,926 INFO L132 encePairwiseOnDemand]: 213/224 looper letters, 3 selfloop transitions, 1 changer transitions 0/173 dead transitions. [2021-08-13 07:43:43,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 173 transitions, 880 flow [2021-08-13 07:43:43,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:43,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:43,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:43,930 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:43,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:43,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:43,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,933 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,933 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 12 predicate places. [2021-08-13 07:43:43,933 INFO L482 AbstractCegarLoop]: Abstraction has has 105 places, 173 transitions, 880 flow [2021-08-13 07:43:43,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,933 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:43,933 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:43,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-13 07:43:43,934 INFO L430 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]=== [2021-08-13 07:43:43,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:43,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1713982477, now seen corresponding path program 1 times [2021-08-13 07:43:43,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:43,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396576068] [2021-08-13 07:43:43,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:43,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:43,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:43,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:43,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:43,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:43,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396576068] [2021-08-13 07:43:43,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396576068] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:43,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:43,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:43,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826186300] [2021-08-13 07:43:43,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:43,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:43,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:43,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:43,954 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:43,954 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 173 transitions, 880 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:43,955 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:43,955 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:43,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,016 INFO L129 PetriNetUnfolder]: 803/1196 cut-off events. [2021-08-13 07:43:44,016 INFO L130 PetriNetUnfolder]: For 3031/3031 co-relation queries the response was YES. [2021-08-13 07:43:44,019 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2812 conditions, 1196 events. 803/1196 cut-off events. For 3031/3031 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5278 event pairs, 0 based on Foata normal form. 352/1548 useless extension candidates. Maximal degree in co-relation 2741. Up to 252 conditions per place. [2021-08-13 07:43:44,023 INFO L132 encePairwiseOnDemand]: 211/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/149 dead transitions. [2021-08-13 07:43:44,023 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 149 transitions, 752 flow [2021-08-13 07:43:44,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 644 transitions. [2021-08-13 07:43:44,026 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9583333333333334 [2021-08-13 07:43:44,026 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 644 transitions. [2021-08-13 07:43:44,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 644 transitions. [2021-08-13 07:43:44,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 644 transitions. [2021-08-13 07:43:44,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,029 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,029 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 14 predicate places. [2021-08-13 07:43:44,029 INFO L482 AbstractCegarLoop]: Abstraction has has 107 places, 149 transitions, 752 flow [2021-08-13 07:43:44,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,029 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,030 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,030 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-13 07:43:44,030 INFO L430 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]=== [2021-08-13 07:43:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1498680427, now seen corresponding path program 1 times [2021-08-13 07:43:44,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,030 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426483450] [2021-08-13 07:43:44,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:44,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:44,061 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:44,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426483450] [2021-08-13 07:43:44,062 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426483450] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:44,062 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:44,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:44,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004047170] [2021-08-13 07:43:44,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:44,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:44,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:44,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:44,063 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:44,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 149 transitions, 752 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:44,064 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:44,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,123 INFO L129 PetriNetUnfolder]: 768/1154 cut-off events. [2021-08-13 07:43:44,124 INFO L130 PetriNetUnfolder]: For 2178/2178 co-relation queries the response was YES. [2021-08-13 07:43:44,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 1154 events. 768/1154 cut-off events. For 2178/2178 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4851 event pairs, 0 based on Foata normal form. 6/1160 useless extension candidates. Maximal degree in co-relation 2770. Up to 252 conditions per place. [2021-08-13 07:43:44,131 INFO L132 encePairwiseOnDemand]: 221/224 looper letters, 10 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2021-08-13 07:43:44,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 147 transitions, 764 flow [2021-08-13 07:43:44,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-08-13 07:43:44,133 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-08-13 07:43:44,133 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,136 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 16 predicate places. [2021-08-13 07:43:44,136 INFO L482 AbstractCegarLoop]: Abstraction has has 109 places, 147 transitions, 764 flow [2021-08-13 07:43:44,136 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,136 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,136 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-13 07:43:44,136 INFO L430 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]=== [2021-08-13 07:43:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,137 INFO L82 PathProgramCache]: Analyzing trace with hash 709864179, now seen corresponding path program 1 times [2021-08-13 07:43:44,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483917401] [2021-08-13 07:43:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:44,150 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:44,150 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:44,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483917401] [2021-08-13 07:43:44,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483917401] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:44,151 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:44,151 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:44,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480636586] [2021-08-13 07:43:44,151 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:44,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:44,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:44,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:44,152 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:44,152 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 147 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,152 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:44,152 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:44,152 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,179 INFO L129 PetriNetUnfolder]: 193/353 cut-off events. [2021-08-13 07:43:44,179 INFO L130 PetriNetUnfolder]: For 982/982 co-relation queries the response was YES. [2021-08-13 07:43:44,180 INFO L84 FinitePrefix]: Finished finitePrefix Result has 877 conditions, 353 events. 193/353 cut-off events. For 982/982 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1235 event pairs, 0 based on Foata normal form. 118/471 useless extension candidates. Maximal degree in co-relation 805. Up to 63 conditions per place. [2021-08-13 07:43:44,181 INFO L132 encePairwiseOnDemand]: 212/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2021-08-13 07:43:44,181 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 527 flow [2021-08-13 07:43:44,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 643 transitions. [2021-08-13 07:43:44,182 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9568452380952381 [2021-08-13 07:43:44,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 643 transitions. [2021-08-13 07:43:44,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 214.33333333333334) internal successors, (643), 3 states have internal predecessors, (643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,184 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,185 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,185 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 18 predicate places. [2021-08-13 07:43:44,185 INFO L482 AbstractCegarLoop]: Abstraction has has 111 places, 106 transitions, 527 flow [2021-08-13 07:43:44,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,185 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,185 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-13 07:43:44,185 INFO L430 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]=== [2021-08-13 07:43:44,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1992659461, now seen corresponding path program 1 times [2021-08-13 07:43:44,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936347094] [2021-08-13 07:43:44,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,198 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:44,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:44,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:44,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936347094] [2021-08-13 07:43:44,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936347094] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:44,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:44,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:44,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846670043] [2021-08-13 07:43:44,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:44,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:44,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:44,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:44,203 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:44,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 106 transitions, 527 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:44,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:44,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,225 INFO L129 PetriNetUnfolder]: 148/293 cut-off events. [2021-08-13 07:43:44,225 INFO L130 PetriNetUnfolder]: For 619/619 co-relation queries the response was YES. [2021-08-13 07:43:44,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 769 conditions, 293 events. 148/293 cut-off events. For 619/619 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1008 event pairs, 0 based on Foata normal form. 10/303 useless extension candidates. Maximal degree in co-relation 695. Up to 63 conditions per place. [2021-08-13 07:43:44,227 INFO L132 encePairwiseOnDemand]: 220/224 looper letters, 6 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2021-08-13 07:43:44,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 103 transitions, 526 flow [2021-08-13 07:43:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-13 07:43:44,228 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:44,228 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,229 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,231 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 20 predicate places. [2021-08-13 07:43:44,231 INFO L482 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 526 flow [2021-08-13 07:43:44,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,231 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,231 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,231 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-13 07:43:44,231 INFO L430 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]=== [2021-08-13 07:43:44,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1315175693, now seen corresponding path program 1 times [2021-08-13 07:43:44,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,232 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704767733] [2021-08-13 07:43:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:44,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:44,248 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:44,248 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704767733] [2021-08-13 07:43:44,248 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704767733] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:44,248 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:44,248 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:44,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031301158] [2021-08-13 07:43:44,249 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:44,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:44,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:44,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:44,249 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:44,250 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 526 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,250 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:44,250 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:44,250 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,264 INFO L129 PetriNetUnfolder]: 36/125 cut-off events. [2021-08-13 07:43:44,264 INFO L130 PetriNetUnfolder]: For 293/293 co-relation queries the response was YES. [2021-08-13 07:43:44,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 125 events. 36/125 cut-off events. For 293/293 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 313 event pairs, 0 based on Foata normal form. 21/146 useless extension candidates. Maximal degree in co-relation 263. Up to 16 conditions per place. [2021-08-13 07:43:44,265 INFO L132 encePairwiseOnDemand]: 217/224 looper letters, 3 selfloop transitions, 1 changer transitions 0/97 dead transitions. [2021-08-13 07:43:44,265 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 97 transitions, 504 flow [2021-08-13 07:43:44,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-13 07:43:44,266 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:44,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,268 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,272 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 22 predicate places. [2021-08-13 07:43:44,272 INFO L482 AbstractCegarLoop]: Abstraction has has 115 places, 97 transitions, 504 flow [2021-08-13 07:43:44,272 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,272 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,273 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,273 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-13 07:43:44,273 INFO L430 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]=== [2021-08-13 07:43:44,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1468651589, now seen corresponding path program 1 times [2021-08-13 07:43:44,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20677217] [2021-08-13 07:43:44,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-08-13 07:43:44,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:44,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:44,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20677217] [2021-08-13 07:43:44,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20677217] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:44,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:44,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-13 07:43:44,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268514986] [2021-08-13 07:43:44,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-08-13 07:43:44,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:44,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-13 07:43:44,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-13 07:43:44,288 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 210 out of 224 [2021-08-13 07:43:44,288 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 97 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,289 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:44,289 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 210 of 224 [2021-08-13 07:43:44,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:44,299 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-08-13 07:43:44,299 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2021-08-13 07:43:44,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 53 events. 0/53 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 8/61 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-08-13 07:43:44,299 INFO L132 encePairwiseOnDemand]: 215/224 looper letters, 1 selfloop transitions, 1 changer transitions 0/53 dead transitions. [2021-08-13 07:43:44,299 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 53 transitions, 232 flow [2021-08-13 07:43:44,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-13 07:43:44,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-08-13 07:43:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 640 transitions. [2021-08-13 07:43:44,300 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9523809523809523 [2021-08-13 07:43:44,301 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:44,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 640 transitions. [2021-08-13 07:43:44,302 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 213.33333333333334) internal successors, (640), 3 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 224.0) internal successors, (896), 4 states have internal predecessors, (896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,303 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 24 predicate places. [2021-08-13 07:43:44,303 INFO L482 AbstractCegarLoop]: Abstraction has has 117 places, 53 transitions, 232 flow [2021-08-13 07:43:44,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:44,303 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:44,303 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:44,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-13 07:43:44,303 INFO L430 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]=== [2021-08-13 07:43:44,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:44,304 INFO L82 PathProgramCache]: Analyzing trace with hash 576343127, now seen corresponding path program 1 times [2021-08-13 07:43:44,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:44,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064284410] [2021-08-13 07:43:44,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:44,396 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:44,401 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:44,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:44,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:44,421 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-08-13 07:43:44,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-08-13 07:43:44,452 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-08-13 07:43:44,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-08-13 07:43:44,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-08-13 07:43:44,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-08-13 07:43:44,523 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-08-13 07:43:44,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-08-13 07:43:44,563 INFO L142 QuantifierPusher]: treesize reduction 27, result has 69.3 percent of original size [2021-08-13 07:43:44,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:43:44,611 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-08-13 07:43:44,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-08-13 07:43:44,690 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-08-13 07:43:44,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-08-13 07:43:44,781 INFO L142 QuantifierPusher]: treesize reduction 63, result has 56.3 percent of original size [2021-08-13 07:43:44,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-08-13 07:43:44,882 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 07:43:44,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 07:43:44,949 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-13 07:43:44,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-13 07:43:45,016 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-13 07:43:45,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-13 07:43:45,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:45,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:45,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064284410] [2021-08-13 07:43:45,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064284410] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:45,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:45,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-13 07:43:45,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224629614] [2021-08-13 07:43:45,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-13 07:43:45,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:45,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-13 07:43:45,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-13 07:43:45,073 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-13 07:43:45,075 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 53 transitions, 232 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) [2021-08-13 07:43:45,075 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:45,075 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-13 07:43:45,075 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:43:51,550 INFO L129 PetriNetUnfolder]: 61443/86948 cut-off events. [2021-08-13 07:43:51,551 INFO L130 PetriNetUnfolder]: For 2548/2548 co-relation queries the response was YES. [2021-08-13 07:43:52,387 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162494 conditions, 86948 events. 61443/86948 cut-off events. For 2548/2548 co-relation queries the response was YES. Maximal size of possible extension queue 6017. Compared 659813 event pairs, 20481 based on Foata normal form. 1/85939 useless extension candidates. Maximal degree in co-relation 162353. Up to 26625 conditions per place. [2021-08-13 07:43:52,722 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 90 selfloop transitions, 12 changer transitions 1/142 dead transitions. [2021-08-13 07:43:52,722 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 142 transitions, 616 flow [2021-08-13 07:43:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 07:43:52,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 07:43:52,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-13 07:43:52,726 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-13 07:43:52,726 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-13 07:43:52,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-13 07:43:52,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:43:52,727 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-13 07:43:52,731 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) [2021-08-13 07:43:52,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:52,736 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:43:52,736 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 38 predicate places. [2021-08-13 07:43:52,736 INFO L482 AbstractCegarLoop]: Abstraction has has 131 places, 142 transitions, 616 flow [2021-08-13 07:43:52,737 INFO L483 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) [2021-08-13 07:43:52,737 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:43:52,737 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:43:52,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-13 07:43:52,737 INFO L430 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]=== [2021-08-13 07:43:52,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:43:52,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1441724467, now seen corresponding path program 2 times [2021-08-13 07:43:52,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:43:52,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744031585] [2021-08-13 07:43:52,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:43:52,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:43:52,881 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:52,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:43:52,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:52,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:43:52,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:43:52,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:43:52,898 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:43:52,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:43:52,944 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:43:52,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:43:52,961 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:43:52,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:43:52,985 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:43:52,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:43:53,013 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:43:53,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:43:53,063 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:43:53,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:43:53,127 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:43:53,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:43:53,183 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 07:43:53,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 07:43:53,269 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-08-13 07:43:53,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-08-13 07:43:53,334 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-08-13 07:43:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-08-13 07:43:53,452 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-13 07:43:53,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-13 07:43:53,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:43:53,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:43:53,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744031585] [2021-08-13 07:43:53,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744031585] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:43:53,515 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:43:53,515 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-13 07:43:53,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489984205] [2021-08-13 07:43:53,516 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-13 07:43:53,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:43:53,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-13 07:43:53,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-13 07:43:53,519 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-13 07:43:53,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 142 transitions, 616 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) [2021-08-13 07:43:53,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:43:53,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-13 07:43:53,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:44:06,008 INFO L129 PetriNetUnfolder]: 83038/133105 cut-off events. [2021-08-13 07:44:06,008 INFO L130 PetriNetUnfolder]: For 34383/262987 co-relation queries the response was YES. [2021-08-13 07:44:07,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359454 conditions, 133105 events. 83038/133105 cut-off events. For 34383/262987 co-relation queries the response was YES. Maximal size of possible extension queue 7793. Compared 1252517 event pairs, 9217 based on Foata normal form. 1/132100 useless extension candidates. Maximal degree in co-relation 359003. Up to 36908 conditions per place. [2021-08-13 07:44:08,251 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 436 selfloop transitions, 64 changer transitions 4/543 dead transitions. [2021-08-13 07:44:08,252 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 543 transitions, 3228 flow [2021-08-13 07:44:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 07:44:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 07:44:08,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-13 07:44:08,256 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-13 07:44:08,256 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-13 07:44:08,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-13 07:44:08,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:44:08,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-13 07:44:08,261 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) [2021-08-13 07:44:08,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:44:08,264 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:44:08,264 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 52 predicate places. [2021-08-13 07:44:08,264 INFO L482 AbstractCegarLoop]: Abstraction has has 145 places, 543 transitions, 3228 flow [2021-08-13 07:44:08,265 INFO L483 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) [2021-08-13 07:44:08,265 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:44:08,265 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:44:08,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-13 07:44:08,265 INFO L430 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]=== [2021-08-13 07:44:08,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:44:08,266 INFO L82 PathProgramCache]: Analyzing trace with hash -432007825, now seen corresponding path program 3 times [2021-08-13 07:44:08,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:44:08,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020013670] [2021-08-13 07:44:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:44:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:44:08,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:44:08,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:08,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:44:08,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:08,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:44:08,343 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:44:08,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:44:08,353 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:44:08,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:44:08,369 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:44:08,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:44:08,387 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:44:08,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:44:08,415 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:44:08,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:44:08,515 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:44:08,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:44:08,554 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:44:08,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:44:08,606 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-08-13 07:44:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-08-13 07:44:08,667 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-13 07:44:08,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 07:44:08,738 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-13 07:44:08,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-13 07:44:08,816 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-13 07:44:08,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-13 07:44:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:44:08,875 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:44:08,875 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020013670] [2021-08-13 07:44:08,875 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020013670] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:44:08,875 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:44:08,875 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-13 07:44:08,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832717348] [2021-08-13 07:44:08,876 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-13 07:44:08,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:44:08,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-13 07:44:08,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-13 07:44:08,878 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-13 07:44:08,879 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 543 transitions, 3228 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) [2021-08-13 07:44:08,879 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:44:08,879 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-13 07:44:08,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-08-13 07:44:34,180 INFO L129 PetriNetUnfolder]: 113906/183880 cut-off events. [2021-08-13 07:44:34,180 INFO L130 PetriNetUnfolder]: For 41592/642486 co-relation queries the response was YES. [2021-08-13 07:44:36,438 INFO L84 FinitePrefix]: Finished finitePrefix Result has 635263 conditions, 183880 events. 113906/183880 cut-off events. For 41592/642486 co-relation queries the response was YES. Maximal size of possible extension queue 12160. Compared 1826822 event pairs, 4097 based on Foata normal form. 3/182566 useless extension candidates. Maximal degree in co-relation 634103. Up to 52346 conditions per place. [2021-08-13 07:44:37,534 INFO L132 encePairwiseOnDemand]: 210/224 looper letters, 1435 selfloop transitions, 223 changer transitions 6/1703 dead transitions. [2021-08-13 07:44:37,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 1703 transitions, 13516 flow [2021-08-13 07:44:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-13 07:44:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-08-13 07:44:37,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-08-13 07:44:37,539 INFO L558 CegarLoopForPetriNet]: DFA transition density 0.9639880952380953 [2021-08-13 07:44:37,539 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-08-13 07:44:37,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-08-13 07:44:37,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-13 07:44:37,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-08-13 07:44:37,544 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) [2021-08-13 07:44:37,547 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:44:37,547 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 224.0) internal successors, (3584), 16 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-13 07:44:37,547 INFO L348 CegarLoopForPetriNet]: 93 programPoint places, 66 predicate places. [2021-08-13 07:44:37,547 INFO L482 AbstractCegarLoop]: Abstraction has has 159 places, 1703 transitions, 13516 flow [2021-08-13 07:44:37,548 INFO L483 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) [2021-08-13 07:44:37,548 INFO L258 CegarLoopForPetriNet]: Found error trace [2021-08-13 07:44:37,548 INFO L266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-13 07:44:37,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-13 07:44:37,548 INFO L430 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]=== [2021-08-13 07:44:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-13 07:44:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash -426944949, now seen corresponding path program 4 times [2021-08-13 07:44:37,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-13 07:44:37,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620058434] [2021-08-13 07:44:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-13 07:44:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-13 07:44:37,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:37,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-08-13 07:44:37,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:37,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-08-13 07:44:37,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-08-13 07:44:37,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-08-13 07:44:37,621 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-08-13 07:44:37,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-08-13 07:44:37,631 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-08-13 07:44:37,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-08-13 07:44:37,646 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-08-13 07:44:37,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-08-13 07:44:37,665 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-08-13 07:44:37,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-08-13 07:44:37,697 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-08-13 07:44:37,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-08-13 07:44:37,726 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-08-13 07:44:37,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-08-13 07:44:37,764 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-08-13 07:44:37,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-08-13 07:44:37,809 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-08-13 07:44:37,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-08-13 07:44:37,864 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-08-13 07:44:37,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-08-13 07:44:37,921 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-08-13 07:44:37,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-08-13 07:44:37,987 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-08-13 07:44:37,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-08-13 07:44:38,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-13 07:44:38,044 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-13 07:44:38,044 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620058434] [2021-08-13 07:44:38,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620058434] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-13 07:44:38,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-13 07:44:38,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-08-13 07:44:38,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353729149] [2021-08-13 07:44:38,047 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-08-13 07:44:38,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-13 07:44:38,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-13 07:44:38,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-08-13 07:44:38,049 INFO L513 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 224 [2021-08-13 07:44:38,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 1703 transitions, 13516 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) [2021-08-13 07:44:38,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-08-13 07:44:38,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 224 [2021-08-13 07:44:38,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand