/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 22:42:34,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 22:42:34,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 22:42:34,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 22:42:34,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 22:42:34,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 22:42:34,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 22:42:34,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 22:42:34,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 22:42:34,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 22:42:34,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 22:42:34,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 22:42:34,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 22:42:34,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 22:42:34,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 22:42:34,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 22:42:34,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 22:42:34,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 22:42:34,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 22:42:34,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 22:42:34,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 22:42:34,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 22:42:34,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 22:42:34,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 22:42:34,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 22:42:34,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 22:42:34,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 22:42:34,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 22:42:34,877 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 22:42:34,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 22:42:34,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 22:42:34,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 22:42:34,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 22:42:34,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 22:42:34,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 22:42:34,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 22:42:34,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2021-03-11 22:42:34,916 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 22:42:34,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 22:42:34,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 22:42:34,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 22:42:34,920 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 22:42:34,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 22:42:34,920 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 22:42:34,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 22:42:34,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 22:42:34,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 22:42:34,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 22:42:34,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 22:42:34,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 22:42:34,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:42:34,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 22:42:34,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 22:42:34,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 22:42:34,924 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 22:42:35,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 22:42:35,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 22:42:35,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 22:42:35,250 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 22:42:35,251 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 22:42:35,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl [2021-03-11 22:42:35,252 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_15.bpl' [2021-03-11 22:42:35,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 22:42:35,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 22:42:35,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 22:42:35,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 22:42:35,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 22:42:35,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 22:42:35,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 22:42:35,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 22:42:35,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 22:42:35,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... [2021-03-11 22:42:35,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 22:42:35,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 22:42:35,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 22:42:35,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 22:42:35,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:42:35,393 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_14 given in one single declaration [2021-03-11 22:42:35,394 INFO L130 BoogieDeclarations]: Found specification of procedure set_14 [2021-03-11 22:42:35,394 INFO L138 BoogieDeclarations]: Found implementation of procedure set_14 [2021-03-11 22:42:35,396 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 22:42:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 22:42:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 22:42:35,396 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 22:42:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 22:42:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 22:42:35,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 22:42:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 22:42:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 22:42:35,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 22:42:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 22:42:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 22:42:35,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 22:42:35,398 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 22:42:35,399 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 22:42:35,399 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 22:42:35,400 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 22:42:35,400 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 22:42:35,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 22:42:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 22:42:35,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 22:42:35,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-11 22:42:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-11 22:42:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-11 22:42:35,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 22:42:35,403 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 22:42:35,403 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 22:42:35,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_13 given in one single declaration [2021-03-11 22:42:35,405 INFO L130 BoogieDeclarations]: Found specification of procedure set_13 [2021-03-11 22:42:35,405 INFO L138 BoogieDeclarations]: Found implementation of procedure set_13 [2021-03-11 22:42:35,405 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 22:42:35,406 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 22:42:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 22:42:35,409 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-11 22:42:35,409 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-11 22:42:35,409 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-11 22:42:35,409 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 22:42:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 22:42:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 22:42:35,410 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-11 22:42:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-11 22:42:35,410 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-11 22:42:35,410 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 22:42:35,410 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 22:42:35,411 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 22:42:35,412 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 22:42:35,649 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 22:42:35,649 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 22:42:35,650 INFO L202 PluginConnector]: Adding new model example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:42:35 BoogieIcfgContainer [2021-03-11 22:42:35,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 22:42:35,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 22:42:35,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 22:42:35,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 22:42:35,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:42:35" (1/2) ... [2021-03-11 22:42:35,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641351c9 and model type example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:42:35, skipping insertion in model container [2021-03-11 22:42:35,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_15.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:42:35" (2/2) ... [2021-03-11 22:42:35,656 INFO L111 eAbstractionObserver]: Analyzing ICFG example_15.bpl [2021-03-11 22:42:35,660 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 22:42:35,662 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 22:42:35,663 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 22:42:35,963 INFO L149 ThreadInstanceAdder]: Constructed 225 joinOtherThreadTransitions. [2021-03-11 22:42:35,979 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-03-11 22:42:36,007 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 22:42:36,007 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 22:42:36,007 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 22:42:36,007 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 22:42:36,008 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 22:42:36,008 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 22:42:36,008 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 22:42:36,008 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 22:42:36,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 124 places, 288 transitions, 1326 flow [2021-03-11 22:42:53,089 INFO L129 PetriNetUnfolder]: 212993/245808 cut-off events. [2021-03-11 22:42:53,090 INFO L130 PetriNetUnfolder]: For 245760/245760 co-relation queries the response was YES. [2021-03-11 22:42:55,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491614 conditions, 245808 events. 212993/245808 cut-off events. For 245760/245760 co-relation queries the response was YES. Maximal size of possible extension queue 7060. Compared 1008684 event pairs, 0 based on Foata normal form. 0/245807 useless extension candidates. Maximal degree in co-relation 229448. Up to 51480 conditions per place. [2021-03-11 22:42:55,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 124 places, 288 transitions, 1326 flow [2021-03-11 22:42:56,541 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 271 transitions, 1262 flow [2021-03-11 22:42:56,544 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 22:42:56,557 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 271 transitions, 1262 flow [2021-03-11 22:42:56,559 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 271 transitions, 1262 flow [2021-03-11 22:42:56,560 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 271 transitions, 1262 flow [2021-03-11 22:43:12,411 INFO L129 PetriNetUnfolder]: 212993/245806 cut-off events. [2021-03-11 22:43:12,411 INFO L130 PetriNetUnfolder]: For 245760/245760 co-relation queries the response was YES. [2021-03-11 22:43:14,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 491612 conditions, 245806 events. 212993/245806 cut-off events. For 245760/245760 co-relation queries the response was YES. Maximal size of possible extension queue 7060. Compared 1023057 event pairs, 0 based on Foata normal form. 0/245806 useless extension candidates. Maximal degree in co-relation 229448. Up to 51480 conditions per place. [2021-03-11 22:43:19,204 INFO L116 LiptonReduction]: Number of co-enabled transitions 13020 [2021-03-11 22:43:19,430 INFO L131 LiptonReduction]: Checked pairs total: 83475 [2021-03-11 22:43:19,430 INFO L133 LiptonReduction]: Total number of compositions: 15 [2021-03-11 22:43:19,431 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 22889 [2021-03-11 22:43:33,000 INFO L129 PetriNetUnfolder]: 212993/245790 cut-off events. [2021-03-11 22:43:33,000 INFO L130 PetriNetUnfolder]: For 245760/245760 co-relation queries the response was YES. [2021-03-11 22:43:33,000 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:33,001 INFO L255 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] [2021-03-11 22:43:33,001 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1795794819, now seen corresponding path program 1 times [2021-03-11 22:43:33,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:33,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142959525] [2021-03-11 22:43:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:33,110 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:33,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:33,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:33,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:33,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:33,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:33,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142959525] [2021-03-11 22:43:33,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:33,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:33,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247910322] [2021-03-11 22:43:33,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:33,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:33,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:33,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:33,145 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:33,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 256 transitions, 1232 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:33,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:33,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:33,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:40,841 INFO L129 PetriNetUnfolder]: 98501/115021 cut-off events. [2021-03-11 22:43:40,842 INFO L130 PetriNetUnfolder]: For 164037/164037 co-relation queries the response was YES. [2021-03-11 22:43:41,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230165 conditions, 115021 events. 98501/115021 cut-off events. For 164037/164037 co-relation queries the response was YES. Maximal size of possible extension queue 3628. Compared 580108 event pairs, 0 based on Foata normal form. 16278/131299 useless extension candidates. Maximal degree in co-relation 229397. Up to 24024 conditions per place. [2021-03-11 22:43:42,457 INFO L132 encePairwiseOnDemand]: 290/303 looper letters, 3 selfloop transitions, 1 changer transitions 0/244 dead transitions. [2021-03-11 22:43:42,457 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 244 transitions, 1180 flow [2021-03-11 22:43:42,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:42,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:42,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:42,475 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:42,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:42,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:42,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:42,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:42,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:42,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:42,491 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:42,492 INFO L185 Difference]: Start difference. First operand has 92 places, 256 transitions, 1232 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:42,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 244 transitions, 1180 flow [2021-03-11 22:43:43,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 244 transitions, 724 flow, removed 0 selfloop flow, removed 30 redundant places. [2021-03-11 22:43:43,426 INFO L241 Difference]: Finished difference. Result has 64 places, 244 transitions, 718 flow [2021-03-11 22:43:43,427 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=64, PETRI_TRANSITIONS=244} [2021-03-11 22:43:43,427 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -28 predicate places. [2021-03-11 22:43:43,427 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 244 transitions, 718 flow [2021-03-11 22:43:43,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:43,428 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:43,428 INFO L255 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] [2021-03-11 22:43:43,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 22:43:43,428 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:43,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1067311095, now seen corresponding path program 1 times [2021-03-11 22:43:43,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:43,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113131552] [2021-03-11 22:43:43,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:43,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:43,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:43,454 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:43,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:43,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:43,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:43,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:43,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113131552] [2021-03-11 22:43:43,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:43,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:43,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51446691] [2021-03-11 22:43:43,460 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:43,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:43,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:43,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:43,462 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:43,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 244 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:43,463 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:43,463 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:43,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:46,220 INFO L129 PetriNetUnfolder]: 65871/78295 cut-off events. [2021-03-11 22:43:46,221 INFO L130 PetriNetUnfolder]: For 8206/8206 co-relation queries the response was YES. [2021-03-11 22:43:46,364 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82425 conditions, 78295 events. 65871/78295 cut-off events. For 8206/8206 co-relation queries the response was YES. Maximal size of possible extension queue 3067. Compared 385347 event pairs, 0 based on Foata normal form. 4096/82391 useless extension candidates. Maximal degree in co-relation 82394. Up to 18018 conditions per place. [2021-03-11 22:43:46,622 INFO L132 encePairwiseOnDemand]: 295/303 looper letters, 8 selfloop transitions, 1 changer transitions 0/237 dead transitions. [2021-03-11 22:43:46,622 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 237 transitions, 715 flow [2021-03-11 22:43:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:46,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:46,625 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:46,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:46,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:46,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:46,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:46,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:46,630 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:46,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:46,631 INFO L185 Difference]: Start difference. First operand has 64 places, 244 transitions, 718 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:46,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 237 transitions, 715 flow [2021-03-11 22:43:46,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 237 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:46,643 INFO L241 Difference]: Finished difference. Result has 65 places, 237 transitions, 698 flow [2021-03-11 22:43:46,644 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=698, PETRI_PLACES=65, PETRI_TRANSITIONS=237} [2021-03-11 22:43:46,644 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -27 predicate places. [2021-03-11 22:43:46,644 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 237 transitions, 698 flow [2021-03-11 22:43:46,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:46,645 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:46,645 INFO L255 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] [2021-03-11 22:43:46,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 22:43:46,645 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:46,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:46,646 INFO L82 PathProgramCache]: Analyzing trace with hash 828450771, now seen corresponding path program 1 times [2021-03-11 22:43:46,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:46,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901111437] [2021-03-11 22:43:46,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:46,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:46,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:46,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:46,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:46,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:46,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:46,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:46,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:46,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901111437] [2021-03-11 22:43:46,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:46,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:46,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15001701] [2021-03-11 22:43:46,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:46,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:46,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:46,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:46,688 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:46,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 237 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:46,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:46,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:46,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:47,856 INFO L129 PetriNetUnfolder]: 31308/38219 cut-off events. [2021-03-11 22:43:47,856 INFO L130 PetriNetUnfolder]: For 5696/5696 co-relation queries the response was YES. [2021-03-11 22:43:47,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39347 conditions, 38219 events. 31308/38219 cut-off events. For 5696/5696 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 186163 event pairs, 0 based on Foata normal form. 4589/42808 useless extension candidates. Maximal degree in co-relation 39327. Up to 6435 conditions per place. [2021-03-11 22:43:48,014 INFO L132 encePairwiseOnDemand]: 293/303 looper letters, 6 selfloop transitions, 1 changer transitions 0/228 dead transitions. [2021-03-11 22:43:48,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 228 transitions, 685 flow [2021-03-11 22:43:48,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:48,016 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:48,016 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:48,016 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:48,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:48,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:48,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:48,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:48,020 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:48,021 INFO L185 Difference]: Start difference. First operand has 65 places, 237 transitions, 698 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:48,021 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 228 transitions, 685 flow [2021-03-11 22:43:48,024 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 228 transitions, 684 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:48,026 INFO L241 Difference]: Finished difference. Result has 66 places, 228 transitions, 672 flow [2021-03-11 22:43:48,027 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=672, PETRI_PLACES=66, PETRI_TRANSITIONS=228} [2021-03-11 22:43:48,027 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -26 predicate places. [2021-03-11 22:43:48,027 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 228 transitions, 672 flow [2021-03-11 22:43:48,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:48,028 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:48,028 INFO L255 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] [2021-03-11 22:43:48,028 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 22:43:48,028 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:48,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1759746125, now seen corresponding path program 1 times [2021-03-11 22:43:48,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:48,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935155640] [2021-03-11 22:43:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:48,074 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:48,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:48,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:48,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:48,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:48,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:48,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935155640] [2021-03-11 22:43:48,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:48,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:48,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203493213] [2021-03-11 22:43:48,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:48,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:48,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:48,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:48,086 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:48,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 228 transitions, 672 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:48,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:48,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:48,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:48,887 INFO L129 PetriNetUnfolder]: 24290/30177 cut-off events. [2021-03-11 22:43:48,894 INFO L130 PetriNetUnfolder]: For 2923/2923 co-relation queries the response was YES. [2021-03-11 22:43:48,978 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32098 conditions, 30177 events. 24290/30177 cut-off events. For 2923/2923 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 148487 event pairs, 0 based on Foata normal form. 1024/31201 useless extension candidates. Maximal degree in co-relation 32077. Up to 6435 conditions per place. [2021-03-11 22:43:49,055 INFO L132 encePairwiseOnDemand]: 296/303 looper letters, 9 selfloop transitions, 1 changer transitions 0/222 dead transitions. [2021-03-11 22:43:49,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 222 transitions, 674 flow [2021-03-11 22:43:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:49,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:49,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:49,057 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:49,057 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:49,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,062 INFO L185 Difference]: Start difference. First operand has 66 places, 228 transitions, 672 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:49,062 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 222 transitions, 674 flow [2021-03-11 22:43:49,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 222 transitions, 673 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:49,066 INFO L241 Difference]: Finished difference. Result has 67 places, 222 transitions, 655 flow [2021-03-11 22:43:49,067 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=67, PETRI_TRANSITIONS=222} [2021-03-11 22:43:49,067 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -25 predicate places. [2021-03-11 22:43:49,067 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 222 transitions, 655 flow [2021-03-11 22:43:49,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,068 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:49,068 INFO L255 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] [2021-03-11 22:43:49,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 22:43:49,068 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:49,068 INFO L82 PathProgramCache]: Analyzing trace with hash -854816747, now seen corresponding path program 1 times [2021-03-11 22:43:49,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:49,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220723543] [2021-03-11 22:43:49,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:49,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:49,094 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:49,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220723543] [2021-03-11 22:43:49,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:49,095 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:49,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239144903] [2021-03-11 22:43:49,095 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:49,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:49,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:49,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:49,096 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:49,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 222 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:49,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:49,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:49,466 INFO L129 PetriNetUnfolder]: 8502/11001 cut-off events. [2021-03-11 22:43:49,467 INFO L130 PetriNetUnfolder]: For 2285/2285 co-relation queries the response was YES. [2021-03-11 22:43:49,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11130 conditions, 11001 events. 8502/11001 cut-off events. For 2285/2285 co-relation queries the response was YES. Maximal size of possible extension queue 503. Compared 50723 event pairs, 0 based on Foata normal form. 2179/13180 useless extension candidates. Maximal degree in co-relation 11112. Up to 1980 conditions per place. [2021-03-11 22:43:49,498 INFO L132 encePairwiseOnDemand]: 291/303 looper letters, 4 selfloop transitions, 1 changer transitions 0/211 dead transitions. [2021-03-11 22:43:49,498 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 211 transitions, 632 flow [2021-03-11 22:43:49,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:49,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:49,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:49,502 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:49,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:49,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,506 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,506 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,506 INFO L185 Difference]: Start difference. First operand has 67 places, 222 transitions, 655 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:49,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 211 transitions, 632 flow [2021-03-11 22:43:49,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 211 transitions, 631 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:49,510 INFO L241 Difference]: Finished difference. Result has 68 places, 211 transitions, 623 flow [2021-03-11 22:43:49,511 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=621, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=623, PETRI_PLACES=68, PETRI_TRANSITIONS=211} [2021-03-11 22:43:49,511 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -24 predicate places. [2021-03-11 22:43:49,511 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 211 transitions, 623 flow [2021-03-11 22:43:49,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,511 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:49,512 INFO L255 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] [2021-03-11 22:43:49,512 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 22:43:49,512 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:49,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:49,512 INFO L82 PathProgramCache]: Analyzing trace with hash -197028279, now seen corresponding path program 1 times [2021-03-11 22:43:49,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:49,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759151711] [2021-03-11 22:43:49,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:49,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:49,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:49,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759151711] [2021-03-11 22:43:49,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:49,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:49,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164169502] [2021-03-11 22:43:49,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:49,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:49,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:49,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:49,537 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:49,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 211 transitions, 623 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:49,538 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:49,538 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:49,693 INFO L129 PetriNetUnfolder]: 4371/5948 cut-off events. [2021-03-11 22:43:49,693 INFO L130 PetriNetUnfolder]: For 912/912 co-relation queries the response was YES. [2021-03-11 22:43:49,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6298 conditions, 5948 events. 4371/5948 cut-off events. For 912/912 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 27457 event pairs, 0 based on Foata normal form. 586/6534 useless extension candidates. Maximal degree in co-relation 6280. Up to 880 conditions per place. [2021-03-11 22:43:49,715 INFO L132 encePairwiseOnDemand]: 294/303 looper letters, 7 selfloop transitions, 1 changer transitions 0/203 dead transitions. [2021-03-11 22:43:49,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 203 transitions, 615 flow [2021-03-11 22:43:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:49,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:49,717 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:49,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:49,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,722 INFO L185 Difference]: Start difference. First operand has 68 places, 211 transitions, 623 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:49,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 203 transitions, 615 flow [2021-03-11 22:43:49,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 203 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:49,726 INFO L241 Difference]: Finished difference. Result has 69 places, 203 transitions, 600 flow [2021-03-11 22:43:49,726 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=69, PETRI_TRANSITIONS=203} [2021-03-11 22:43:49,726 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -23 predicate places. [2021-03-11 22:43:49,726 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 203 transitions, 600 flow [2021-03-11 22:43:49,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,727 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:49,727 INFO L255 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] [2021-03-11 22:43:49,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 22:43:49,727 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:49,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:49,728 INFO L82 PathProgramCache]: Analyzing trace with hash -776815681, now seen corresponding path program 1 times [2021-03-11 22:43:49,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:49,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213382002] [2021-03-11 22:43:49,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:49,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:49,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:49,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213382002] [2021-03-11 22:43:49,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:49,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:49,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99793504] [2021-03-11 22:43:49,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:49,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:49,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:49,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:49,749 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:49,750 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 203 transitions, 600 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,750 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:49,750 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:49,750 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:49,825 INFO L129 PetriNetUnfolder]: 1174/1708 cut-off events. [2021-03-11 22:43:49,825 INFO L130 PetriNetUnfolder]: For 489/489 co-relation queries the response was YES. [2021-03-11 22:43:49,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1708 events. 1174/1708 cut-off events. For 489/489 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6899 event pairs, 0 based on Foata normal form. 474/2182 useless extension candidates. Maximal degree in co-relation 1730. Up to 280 conditions per place. [2021-03-11 22:43:49,833 INFO L132 encePairwiseOnDemand]: 289/303 looper letters, 2 selfloop transitions, 1 changer transitions 0/190 dead transitions. [2021-03-11 22:43:49,833 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 190 transitions, 567 flow [2021-03-11 22:43:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:49,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:49,836 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:49,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:49,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,839 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,840 INFO L185 Difference]: Start difference. First operand has 69 places, 203 transitions, 600 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:49,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 190 transitions, 567 flow [2021-03-11 22:43:49,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 190 transitions, 566 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:49,843 INFO L241 Difference]: Finished difference. Result has 70 places, 190 transitions, 562 flow [2021-03-11 22:43:49,843 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=562, PETRI_PLACES=70, PETRI_TRANSITIONS=190} [2021-03-11 22:43:49,843 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -22 predicate places. [2021-03-11 22:43:49,843 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 190 transitions, 562 flow [2021-03-11 22:43:49,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,844 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:49,844 INFO L255 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] [2021-03-11 22:43:49,844 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 22:43:49,844 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:49,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:49,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1129077621, now seen corresponding path program 1 times [2021-03-11 22:43:49,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:49,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856585505] [2021-03-11 22:43:49,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:49,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:49,863 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:49,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856585505] [2021-03-11 22:43:49,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:49,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:49,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485674614] [2021-03-11 22:43:49,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:49,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:49,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:49,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:49,865 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:49,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 190 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:49,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:49,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:49,899 INFO L129 PetriNetUnfolder]: 355/555 cut-off events. [2021-03-11 22:43:49,899 INFO L130 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2021-03-11 22:43:49,900 INFO L84 FinitePrefix]: Finished finitePrefix Result has 582 conditions, 555 events. 355/555 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2133 event pairs, 0 based on Foata normal form. 168/723 useless extension candidates. Maximal degree in co-relation 564. Up to 140 conditions per place. [2021-03-11 22:43:49,901 INFO L132 encePairwiseOnDemand]: 288/303 looper letters, 1 selfloop transitions, 1 changer transitions 0/126 dead transitions. [2021-03-11 22:43:49,901 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 126 transitions, 374 flow [2021-03-11 22:43:49,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:49,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 877 transitions. [2021-03-11 22:43:49,903 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9647964796479648 [2021-03-11 22:43:49,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:49,904 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 877 transitions. [2021-03-11 22:43:49,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,907 INFO L185 Difference]: Start difference. First operand has 70 places, 190 transitions, 562 flow. Second operand 3 states and 877 transitions. [2021-03-11 22:43:49,907 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 126 transitions, 374 flow [2021-03-11 22:43:49,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 126 transitions, 373 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:49,909 INFO L241 Difference]: Finished difference. Result has 71 places, 126 transitions, 371 flow [2021-03-11 22:43:49,909 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=369, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=71, PETRI_TRANSITIONS=126} [2021-03-11 22:43:49,909 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -21 predicate places. [2021-03-11 22:43:49,910 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 126 transitions, 371 flow [2021-03-11 22:43:49,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,910 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:49,910 INFO L255 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] [2021-03-11 22:43:49,910 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 22:43:49,910 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:49,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:49,911 INFO L82 PathProgramCache]: Analyzing trace with hash 619187843, now seen corresponding path program 1 times [2021-03-11 22:43:49,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:49,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224844827] [2021-03-11 22:43:49,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:49,951 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:49,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:49,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:49,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:49,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224844827] [2021-03-11 22:43:49,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:49,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:49,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930167472] [2021-03-11 22:43:49,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:49,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:49,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:49,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:49,958 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:49,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 126 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:49,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:49,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:49,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:50,012 INFO L129 PetriNetUnfolder]: 129/232 cut-off events. [2021-03-11 22:43:50,012 INFO L130 PetriNetUnfolder]: For 68/68 co-relation queries the response was YES. [2021-03-11 22:43:50,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260 conditions, 232 events. 129/232 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 612 event pairs, 0 based on Foata normal form. 67/299 useless extension candidates. Maximal degree in co-relation 242. Up to 60 conditions per place. [2021-03-11 22:43:50,013 INFO L132 encePairwiseOnDemand]: 292/303 looper letters, 1 selfloop transitions, 1 changer transitions 0/76 dead transitions. [2021-03-11 22:43:50,013 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 76 transitions, 225 flow [2021-03-11 22:43:50,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:50,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:50,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 873 transitions. [2021-03-11 22:43:50,027 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9603960396039604 [2021-03-11 22:43:50,027 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 873 transitions. [2021-03-11 22:43:50,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 873 transitions. [2021-03-11 22:43:50,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:50,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 873 transitions. [2021-03-11 22:43:50,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 291.0) internal successors, (873), 3 states have internal predecessors, (873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,031 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,031 INFO L185 Difference]: Start difference. First operand has 71 places, 126 transitions, 371 flow. Second operand 3 states and 873 transitions. [2021-03-11 22:43:50,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 76 transitions, 225 flow [2021-03-11 22:43:50,032 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 76 transitions, 224 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:50,033 INFO L241 Difference]: Finished difference. Result has 72 places, 76 transitions, 222 flow [2021-03-11 22:43:50,033 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=72, PETRI_TRANSITIONS=76} [2021-03-11 22:43:50,034 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -20 predicate places. [2021-03-11 22:43:50,034 INFO L480 AbstractCegarLoop]: Abstraction has has 72 places, 76 transitions, 222 flow [2021-03-11 22:43:50,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,034 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:50,034 INFO L255 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] [2021-03-11 22:43:50,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 22:43:50,034 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:50,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash 369556339, now seen corresponding path program 1 times [2021-03-11 22:43:50,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:50,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176541950] [2021-03-11 22:43:50,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:50,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:50,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:50,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:43:50,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:50,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:50,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176541950] [2021-03-11 22:43:50,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:50,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:43:50,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48659451] [2021-03-11 22:43:50,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:43:50,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:50,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:43:50,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:43:50,073 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 303 [2021-03-11 22:43:50,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 76 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:50,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 303 [2021-03-11 22:43:50,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:43:50,086 INFO L129 PetriNetUnfolder]: 54/131 cut-off events. [2021-03-11 22:43:50,086 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-03-11 22:43:50,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 131 events. 54/131 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 278 event pairs, 0 based on Foata normal form. 26/157 useless extension candidates. Maximal degree in co-relation 146. Up to 30 conditions per place. [2021-03-11 22:43:50,087 INFO L132 encePairwiseOnDemand]: 298/303 looper letters, 2 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2021-03-11 22:43:50,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 72 transitions, 216 flow [2021-03-11 22:43:50,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:43:50,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:43:50,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 868 transitions. [2021-03-11 22:43:50,089 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9548954895489549 [2021-03-11 22:43:50,089 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 868 transitions. [2021-03-11 22:43:50,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 868 transitions. [2021-03-11 22:43:50,090 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:43:50,090 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 868 transitions. [2021-03-11 22:43:50,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 289.3333333333333) internal successors, (868), 3 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,092 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,093 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 303.0) internal successors, (1212), 4 states have internal predecessors, (1212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,093 INFO L185 Difference]: Start difference. First operand has 72 places, 76 transitions, 222 flow. Second operand 3 states and 868 transitions. [2021-03-11 22:43:50,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 72 transitions, 216 flow [2021-03-11 22:43:50,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 72 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:43:50,095 INFO L241 Difference]: Finished difference. Result has 73 places, 72 transitions, 211 flow [2021-03-11 22:43:50,095 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=73, PETRI_TRANSITIONS=72} [2021-03-11 22:43:50,096 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, -19 predicate places. [2021-03-11 22:43:50,096 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 72 transitions, 211 flow [2021-03-11 22:43:50,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 states have internal predecessors, (863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:50,096 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:43:50,096 INFO L255 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] [2021-03-11 22:43:50,096 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 22:43:50,096 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:43:50,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:43:50,097 INFO L82 PathProgramCache]: Analyzing trace with hash 2134245207, now seen corresponding path program 1 times [2021-03-11 22:43:50,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:43:50,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060673132] [2021-03-11 22:43:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:43:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:43:50,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:50,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:43:50,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:43:50,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:43:50,315 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:43:50,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:43:50,337 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:43:50,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:43:50,379 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:43:50,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:43:50,422 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:43:50,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:43:50,467 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 22:43:50,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 22:43:50,520 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 22:43:50,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:43:50,589 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 22:43:50,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 22:43:50,670 INFO L142 QuantifierPusher]: treesize reduction 63, result has 54.3 percent of original size [2021-03-11 22:43:50,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-11 22:43:50,780 INFO L142 QuantifierPusher]: treesize reduction 72, result has 53.5 percent of original size [2021-03-11 22:43:50,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-11 22:43:50,904 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-11 22:43:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-11 22:43:51,034 INFO L142 QuantifierPusher]: treesize reduction 90, result has 52.4 percent of original size [2021-03-11 22:43:51,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-03-11 22:43:51,169 INFO L142 QuantifierPusher]: treesize reduction 108, result has 48.8 percent of original size [2021-03-11 22:43:51,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-03-11 22:43:51,259 INFO L142 QuantifierPusher]: treesize reduction 117, result has 48.7 percent of original size [2021-03-11 22:43:51,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-11 22:43:51,379 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.3 percent of original size [2021-03-11 22:43:51,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-11 22:43:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:43:51,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060673132] [2021-03-11 22:43:51,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:43:51,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 22:43:51,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520561418] [2021-03-11 22:43:51,463 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 22:43:51,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:43:51,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 22:43:51,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-03-11 22:43:51,467 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 303 [2021-03-11 22:43:51,470 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 211 flow. Second operand has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:43:51,470 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:43:51,470 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 303 [2021-03-11 22:43:51,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:44:19,358 INFO L129 PetriNetUnfolder]: 307504/366103 cut-off events. [2021-03-11 22:44:19,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 22:44:22,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 710210 conditions, 366103 events. 307504/366103 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19032. Compared 1975082 event pairs, 98305 based on Foata normal form. 1/360671 useless extension candidates. Maximal degree in co-relation 710196. Up to 122881 conditions per place. [2021-03-11 22:44:24,546 INFO L132 encePairwiseOnDemand]: 287/303 looper letters, 119 selfloop transitions, 15 changer transitions 0/190 dead transitions. [2021-03-11 22:44:24,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 190 transitions, 715 flow [2021-03-11 22:44:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 22:44:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 22:44:24,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4742 transitions. [2021-03-11 22:44:24,554 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9205979421471558 [2021-03-11 22:44:24,554 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4742 transitions. [2021-03-11 22:44:24,554 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4742 transitions. [2021-03-11 22:44:24,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:44:24,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4742 transitions. [2021-03-11 22:44:24,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 278.94117647058823) internal successors, (4742), 17 states have internal predecessors, (4742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:44:24,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 303.0) internal successors, (5454), 18 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:44:24,570 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 303.0) internal successors, (5454), 18 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:44:24,570 INFO L185 Difference]: Start difference. First operand has 73 places, 72 transitions, 211 flow. Second operand 17 states and 4742 transitions. [2021-03-11 22:44:24,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 190 transitions, 715 flow [2021-03-11 22:44:24,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 190 transitions, 714 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:44:24,579 INFO L241 Difference]: Finished difference. Result has 103 places, 86 transitions, 327 flow [2021-03-11 22:44:24,579 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=327, PETRI_PLACES=103, PETRI_TRANSITIONS=86} [2021-03-11 22:44:24,580 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 11 predicate places. [2021-03-11 22:44:24,580 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 86 transitions, 327 flow [2021-03-11 22:44:24,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:44:24,581 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:44:24,581 INFO L255 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] [2021-03-11 22:44:24,582 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 22:44:24,582 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:44:24,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:44:24,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2139208723, now seen corresponding path program 2 times [2021-03-11 22:44:24,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:44:24,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039156924] [2021-03-11 22:44:24,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:44:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:44:24,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:44:24,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:44:24,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:44:24,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:44:24,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:44:24,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:44:24,697 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:44:24,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:44:24,712 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:44:24,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:44:24,731 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:44:24,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:44:24,756 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:44:24,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:44:24,785 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:44:24,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:44:24,820 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:44:24,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:44:24,862 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 22:44:24,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 22:44:24,915 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 22:44:24,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 22:44:24,981 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-11 22:44:24,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-11 22:44:25,052 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 22:44:25,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 22:44:25,124 INFO L142 QuantifierPusher]: treesize reduction 99, result has 50.5 percent of original size [2021-03-11 22:44:25,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-11 22:44:25,206 INFO L142 QuantifierPusher]: treesize reduction 108, result has 50.2 percent of original size [2021-03-11 22:44:25,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 109 [2021-03-11 22:44:25,293 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.3 percent of original size [2021-03-11 22:44:25,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-11 22:44:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:44:25,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039156924] [2021-03-11 22:44:25,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:44:25,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 22:44:25,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534092894] [2021-03-11 22:44:25,374 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 22:44:25,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:44:25,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 22:44:25,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-03-11 22:44:25,378 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 303 [2021-03-11 22:44:25,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 86 transitions, 327 flow. Second operand has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:44:25,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:44:25,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 303 [2021-03-11 22:44:25,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:47:17,797 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-03-11 22:47:46,457 INFO L129 PetriNetUnfolder]: 662849/918161 cut-off events. [2021-03-11 22:47:46,458 INFO L130 PetriNetUnfolder]: For 558549/558926 co-relation queries the response was YES. [2021-03-11 22:47:58,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1901226 conditions, 918161 events. 662849/918161 cut-off events. For 558549/558926 co-relation queries the response was YES. Maximal size of possible extension queue 67309. Compared 8504593 event pairs, 135171 based on Foata normal form. 1/860560 useless extension candidates. Maximal degree in co-relation 1901197. Up to 172078 conditions per place. [2021-03-11 22:48:06,625 INFO L132 encePairwiseOnDemand]: 287/303 looper letters, 186 selfloop transitions, 24 changer transitions 0/266 dead transitions. [2021-03-11 22:48:06,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 266 transitions, 1605 flow [2021-03-11 22:48:06,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-11 22:48:06,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-03-11 22:48:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4742 transitions. [2021-03-11 22:48:06,633 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9205979421471558 [2021-03-11 22:48:06,634 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4742 transitions. [2021-03-11 22:48:06,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4742 transitions. [2021-03-11 22:48:06,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:48:06,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4742 transitions. [2021-03-11 22:48:06,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 278.94117647058823) internal successors, (4742), 17 states have internal predecessors, (4742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:48:06,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 303.0) internal successors, (5454), 18 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:48:06,652 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 303.0) internal successors, (5454), 18 states have internal predecessors, (5454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:48:06,652 INFO L185 Difference]: Start difference. First operand has 103 places, 86 transitions, 327 flow. Second operand 17 states and 4742 transitions. [2021-03-11 22:48:06,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 266 transitions, 1605 flow [2021-03-11 22:48:07,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 266 transitions, 1590 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:48:07,162 INFO L241 Difference]: Finished difference. Result has 133 places, 108 transitions, 570 flow [2021-03-11 22:48:07,163 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=303, PETRI_DIFFERENCE_MINUEND_FLOW=326, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=570, PETRI_PLACES=133, PETRI_TRANSITIONS=108} [2021-03-11 22:48:07,163 INFO L335 CegarLoopForPetriNet]: 92 programPoint places, 41 predicate places. [2021-03-11 22:48:07,163 INFO L480 AbstractCegarLoop]: Abstraction has has 133 places, 108 transitions, 570 flow [2021-03-11 22:48:07,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:48:07,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:48:07,165 INFO L255 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] [2021-03-11 22:48:07,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 22:48:07,165 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:48:07,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:48:07,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1182823015, now seen corresponding path program 3 times [2021-03-11 22:48:07,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:48:07,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505733978] [2021-03-11 22:48:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:48:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:48:07,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:07,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:48:07,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:07,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:48:07,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:48:07,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:48:07,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:48:07,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:48:07,349 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:48:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:48:07,377 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:48:07,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:48:07,410 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:48:07,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:48:07,442 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:48:07,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:48:07,482 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:48:07,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:48:07,534 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 22:48:07,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 22:48:07,584 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 22:48:07,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 22:48:07,657 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-11 22:48:07,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-11 22:48:07,743 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 22:48:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 22:48:07,824 INFO L142 QuantifierPusher]: treesize reduction 99, result has 50.5 percent of original size [2021-03-11 22:48:07,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 101 [2021-03-11 22:48:07,935 INFO L142 QuantifierPusher]: treesize reduction 117, result has 48.7 percent of original size [2021-03-11 22:48:07,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 111 [2021-03-11 22:48:08,047 INFO L142 QuantifierPusher]: treesize reduction 126, result has 47.3 percent of original size [2021-03-11 22:48:08,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 113 [2021-03-11 22:48:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:48:08,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505733978] [2021-03-11 22:48:08,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:48:08,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-11 22:48:08,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366718913] [2021-03-11 22:48:08,133 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-11 22:48:08,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:48:08,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-11 22:48:08,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-03-11 22:48:08,137 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 303 [2021-03-11 22:48:08,140 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 108 transitions, 570 flow. Second operand has 17 states, 17 states have (on average 271.94117647058823) internal successors, (4623), 17 states have internal predecessors, (4623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:48:08,140 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:48:08,140 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 303 [2021-03-11 22:48:08,140 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand