/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 22:40:42,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 22:40:42,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 22:40:42,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-11 22:40:42,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-11 22:40:42,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-11 22:40:42,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-11 22:40:42,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-11 22:40:42,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-11 22:40:42,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-11 22:40:42,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-11 22:40:42,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-11 22:40:42,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 22:40:42,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 22:40:42,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 22:40:42,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 22:40:42,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 22:40:42,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 22:40:42,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 22:40:42,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 22:40:42,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 22:40:42,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 22:40:42,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 22:40:42,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 22:40:42,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 22:40:42,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-11 22:40:42,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-11 22:40:42,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-11 22:40:42,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-11 22:40:42,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-11 22:40:42,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-11 22:40:42,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-11 22:40:42,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-11 22:40:42,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 22:40:42,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 22:40:42,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 22:40:42,344 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 22:40:42,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 22:40:42,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 22:40:42,372 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 22:40:42,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 22:40:42,373 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 22:40:42,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 22:40:42,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 22:40:42,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 22:40:42,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 22:40:42,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 22:40:42,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 22:40:42,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-11 22:40:42,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 22:40:42,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 22:40:42,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 22:40:42,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 22:40:42,623 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 22:40:42,623 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 22:40:42,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2021-03-11 22:40:42,624 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2021-03-11 22:40:42,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 22:40:42,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 22:40:42,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 22:40:42,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 22:40:42,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 22:40:42,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 22:40:42,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 22:40:42,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 22:40:42,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 22:40:42,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/1) ... [2021-03-11 22:40:42,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 22:40:42,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 22:40:42,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 22:40:42,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 22:40:42,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (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 22:40:42,748 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 22:40:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 22:40:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 22:40:42,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 22:40:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 22:40:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 22:40:42,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-11 22:40:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-11 22:40:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-11 22:40:42,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-11 22:40:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-11 22:40:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-11 22:40:42,749 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 22:40:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 22:40:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 22:40:42,750 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-11 22:40:42,750 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-11 22:40:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-11 22:40:42,751 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 22:40:42,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 22:40:42,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 22:40:42,752 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2021-03-11 22:40:42,752 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2021-03-11 22:40:42,753 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2021-03-11 22:40:42,753 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-11 22:40:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-11 22:40:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-11 22:40:42,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-11 22:40:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-11 22:40:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-11 22:40:42,754 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2021-03-11 22:40:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2021-03-11 22:40:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2021-03-11 22:40:42,755 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-11 22:40:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-11 22:40:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-11 22:40:42,759 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2021-03-11 22:40:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2021-03-11 22:40:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2021-03-11 22:40:42,759 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-11 22:40:42,759 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-11 22:40:42,759 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-11 22:40:42,760 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 22:40:42,925 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 22:40:42,925 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 22:40:42,927 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:40:42 BoogieIcfgContainer [2021-03-11 22:40:42,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 22:40:42,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 22:40:42,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 22:40:42,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 22:40:42,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 10:40:42" (1/2) ... [2021-03-11 22:40:42,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eab7ada and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 10:40:42, skipping insertion in model container [2021-03-11 22:40:42,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 10:40:42" (2/2) ... [2021-03-11 22:40:42,932 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2021-03-11 22:40:42,935 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 22:40:42,938 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 22:40:42,938 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 22:40:43,172 INFO L149 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2021-03-11 22:40:43,184 INFO L253 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-03-11 22:40:43,198 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 22:40:43,198 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-11 22:40:43,198 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 22:40:43,198 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 22:40:43,198 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 22:40:43,198 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 22:40:43,198 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 22:40:43,198 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 22:40:43,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2021-03-11 22:40:46,648 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2021-03-11 22:40:46,648 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-11 22:40:47,059 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106578 conditions, 53290 events. 45057/53290 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 211898 event pairs, 0 based on Foata normal form. 0/53289 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2021-03-11 22:40:47,059 INFO L82 GeneralOperation]: Start removeDead. Operand has 108 places, 224 transitions, 1020 flow [2021-03-11 22:40:47,385 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 209 transitions, 964 flow [2021-03-11 22:40:47,388 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 22:40:47,394 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-11 22:40:47,396 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 209 transitions, 964 flow [2021-03-11 22:40:47,396 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 209 transitions, 964 flow [2021-03-11 22:40:49,979 INFO L129 PetriNetUnfolder]: 45057/53288 cut-off events. [2021-03-11 22:40:49,979 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-11 22:40:50,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106576 conditions, 53288 events. 45057/53288 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 223878 event pairs, 0 based on Foata normal form. 0/53288 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2021-03-11 22:40:50,737 INFO L116 LiptonReduction]: Number of co-enabled transitions 8424 [2021-03-11 22:40:50,901 INFO L131 LiptonReduction]: Checked pairs total: 45500 [2021-03-11 22:40:50,901 INFO L133 LiptonReduction]: Total number of compositions: 13 [2021-03-11 22:40:50,903 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3517 [2021-03-11 22:40:53,071 INFO L129 PetriNetUnfolder]: 45057/53274 cut-off events. [2021-03-11 22:40:53,072 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2021-03-11 22:40:53,072 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:53,072 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] [2021-03-11 22:40:53,073 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:53,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:53,076 INFO L82 PathProgramCache]: Analyzing trace with hash -915838751, now seen corresponding path program 1 times [2021-03-11 22:40:53,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:53,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112798254] [2021-03-11 22:40:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:53,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:53,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:53,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:53,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:53,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:53,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:53,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:53,172 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 22:40:53,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112798254] [2021-03-11 22:40:53,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:53,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:53,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732179713] [2021-03-11 22:40:53,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:53,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:53,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:53,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:53,190 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:53,193 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 196 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:53,193 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:53,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:53,194 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:55,247 INFO L129 PetriNetUnfolder]: 27225/32933 cut-off events. [2021-03-11 22:40:55,247 INFO L130 PetriNetUnfolder]: For 43609/43609 co-relation queries the response was YES. [2021-03-11 22:40:55,316 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67467 conditions, 32933 events. 27225/32933 cut-off events. For 43609/43609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 155055 event pairs, 0 based on Foata normal form. 2510/35443 useless extension candidates. Maximal degree in co-relation 49180. Up to 6435 conditions per place. [2021-03-11 22:40:55,440 INFO L132 encePairwiseOnDemand]: 229/237 looper letters, 6 selfloop transitions, 1 changer transitions 0/189 dead transitions. [2021-03-11 22:40:55,441 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 189 transitions, 917 flow [2021-03-11 22:40:55,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:55,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:55,450 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:55,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:55,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:55,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:55,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:55,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:55,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:55,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:55,461 INFO L185 Difference]: Start difference. First operand has 80 places, 196 transitions, 938 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:55,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 189 transitions, 917 flow [2021-03-11 22:40:55,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 189 transitions, 567 flow, removed 0 selfloop flow, removed 26 redundant places. [2021-03-11 22:40:55,910 INFO L241 Difference]: Finished difference. Result has 56 places, 189 transitions, 555 flow [2021-03-11 22:40:55,912 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=555, PETRI_PLACES=56, PETRI_TRANSITIONS=189} [2021-03-11 22:40:55,912 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -24 predicate places. [2021-03-11 22:40:55,912 INFO L480 AbstractCegarLoop]: Abstraction has has 56 places, 189 transitions, 555 flow [2021-03-11 22:40:55,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:55,913 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:55,913 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] [2021-03-11 22:40:55,913 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 22:40:55,913 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:55,913 INFO L82 PathProgramCache]: Analyzing trace with hash -858815259, now seen corresponding path program 1 times [2021-03-11 22:40:55,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:55,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812754220] [2021-03-11 22:40:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:55,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:55,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:55,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:55,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:55,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:55,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:55,935 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 22:40:55,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812754220] [2021-03-11 22:40:55,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:55,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:55,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394813422] [2021-03-11 22:40:55,936 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:55,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:55,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:55,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:55,938 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:55,938 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 189 transitions, 555 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:55,938 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:55,938 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:55,938 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:57,011 INFO L129 PetriNetUnfolder]: 27214/32921 cut-off events. [2021-03-11 22:40:57,011 INFO L130 PetriNetUnfolder]: For 2610/2610 co-relation queries the response was YES. [2021-03-11 22:40:57,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35548 conditions, 32921 events. 27214/32921 cut-off events. For 2610/2610 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 154692 event pairs, 0 based on Foata normal form. 1/32922 useless extension candidates. Maximal degree in co-relation 35527. Up to 6435 conditions per place. [2021-03-11 22:40:57,128 INFO L132 encePairwiseOnDemand]: 235/237 looper letters, 12 selfloop transitions, 1 changer transitions 0/188 dead transitions. [2021-03-11 22:40:57,128 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 188 transitions, 578 flow [2021-03-11 22:40:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:57,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:57,130 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:57,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:57,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:57,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:57,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:57,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:57,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:57,135 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:57,135 INFO L185 Difference]: Start difference. First operand has 56 places, 189 transitions, 555 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:57,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 188 transitions, 578 flow [2021-03-11 22:40:57,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 188 transitions, 577 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:57,146 INFO L241 Difference]: Finished difference. Result has 57 places, 188 transitions, 553 flow [2021-03-11 22:40:57,146 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=553, PETRI_PLACES=57, PETRI_TRANSITIONS=188} [2021-03-11 22:40:57,147 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -23 predicate places. [2021-03-11 22:40:57,147 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 188 transitions, 553 flow [2021-03-11 22:40:57,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:57,147 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:57,147 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] [2021-03-11 22:40:57,147 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 22:40:57,147 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:57,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:57,148 INFO L82 PathProgramCache]: Analyzing trace with hash 251204155, now seen corresponding path program 1 times [2021-03-11 22:40:57,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:57,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940689163] [2021-03-11 22:40:57,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:57,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:57,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:57,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:57,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:57,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:57,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:57,172 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 22:40:57,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940689163] [2021-03-11 22:40:57,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:57,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:57,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616498813] [2021-03-11 22:40:57,173 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:57,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:57,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:57,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:57,174 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:57,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 188 transitions, 553 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:57,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:57,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:57,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:58,197 INFO L129 PetriNetUnfolder]: 27094/32789 cut-off events. [2021-03-11 22:40:58,197 INFO L130 PetriNetUnfolder]: For 2609/2609 co-relation queries the response was YES. [2021-03-11 22:40:58,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35406 conditions, 32789 events. 27094/32789 cut-off events. For 2609/2609 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 157057 event pairs, 0 based on Foata normal form. 11/32800 useless extension candidates. Maximal degree in co-relation 35398. Up to 6435 conditions per place. [2021-03-11 22:40:58,350 INFO L132 encePairwiseOnDemand]: 234/237 looper letters, 11 selfloop transitions, 1 changer transitions 0/186 dead transitions. [2021-03-11 22:40:58,350 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 186 transitions, 571 flow [2021-03-11 22:40:58,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:58,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:58,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:58,353 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:58,353 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:58,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:58,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:58,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:58,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:58,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:58,356 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:58,356 INFO L185 Difference]: Start difference. First operand has 57 places, 188 transitions, 553 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:58,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 186 transitions, 571 flow [2021-03-11 22:40:58,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 186 transitions, 570 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:58,361 INFO L241 Difference]: Finished difference. Result has 58 places, 186 transitions, 548 flow [2021-03-11 22:40:58,361 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=58, PETRI_TRANSITIONS=186} [2021-03-11 22:40:58,361 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -22 predicate places. [2021-03-11 22:40:58,362 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 186 transitions, 548 flow [2021-03-11 22:40:58,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:58,362 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:58,362 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] [2021-03-11 22:40:58,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 22:40:58,362 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:58,363 INFO L82 PathProgramCache]: Analyzing trace with hash 526212389, now seen corresponding path program 1 times [2021-03-11 22:40:58,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:58,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058077090] [2021-03-11 22:40:58,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:58,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:58,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:58,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:58,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:58,379 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 22:40:58,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058077090] [2021-03-11 22:40:58,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:58,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:58,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291523764] [2021-03-11 22:40:58,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:58,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:58,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:58,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:58,381 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:58,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 186 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:58,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:58,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:58,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,058 INFO L129 PetriNetUnfolder]: 20098/24770 cut-off events. [2021-03-11 22:40:59,059 INFO L130 PetriNetUnfolder]: For 2598/2598 co-relation queries the response was YES. [2021-03-11 22:40:59,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26376 conditions, 24770 events. 20098/24770 cut-off events. For 2598/2598 co-relation queries the response was YES. Maximal size of possible extension queue 1309. Compared 119923 event pairs, 0 based on Foata normal form. 1012/25782 useless extension candidates. Maximal degree in co-relation 26368. Up to 6435 conditions per place. [2021-03-11 22:40:59,158 INFO L132 encePairwiseOnDemand]: 230/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/180 dead transitions. [2021-03-11 22:40:59,159 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 180 transitions, 546 flow [2021-03-11 22:40:59,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:59,163 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:59,163 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,166 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,166 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,166 INFO L185 Difference]: Start difference. First operand has 58 places, 186 transitions, 548 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:59,166 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 180 transitions, 546 flow [2021-03-11 22:40:59,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 180 transitions, 545 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,169 INFO L241 Difference]: Finished difference. Result has 59 places, 180 transitions, 531 flow [2021-03-11 22:40:59,169 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=59, PETRI_TRANSITIONS=180} [2021-03-11 22:40:59,169 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -21 predicate places. [2021-03-11 22:40:59,169 INFO L480 AbstractCegarLoop]: Abstraction has has 59 places, 180 transitions, 531 flow [2021-03-11 22:40:59,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,170 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,170 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] [2021-03-11 22:40:59,170 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 22:40:59,170 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,170 INFO L82 PathProgramCache]: Analyzing trace with hash 255533215, now seen corresponding path program 1 times [2021-03-11 22:40:59,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273263396] [2021-03-11 22:40:59,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,186 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 22:40:59,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273263396] [2021-03-11 22:40:59,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146260269] [2021-03-11 22:40:59,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:59,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:59,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:59,187 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:59,188 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 180 transitions, 531 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,188 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:59,188 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:59,188 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,556 INFO L129 PetriNetUnfolder]: 10028/12809 cut-off events. [2021-03-11 22:40:59,556 INFO L130 PetriNetUnfolder]: For 1961/1961 co-relation queries the response was YES. [2021-03-11 22:40:59,575 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13624 conditions, 12809 events. 10028/12809 cut-off events. For 1961/1961 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 63527 event pairs, 0 based on Foata normal form. 1167/13976 useless extension candidates. Maximal degree in co-relation 13616. Up to 2860 conditions per place. [2021-03-11 22:40:59,607 INFO L132 encePairwiseOnDemand]: 228/237 looper letters, 5 selfloop transitions, 1 changer transitions 0/172 dead transitions. [2021-03-11 22:40:59,607 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 172 transitions, 519 flow [2021-03-11 22:40:59,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:59,610 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:59,610 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,611 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,613 INFO L185 Difference]: Start difference. First operand has 59 places, 180 transitions, 531 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:59,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 172 transitions, 519 flow [2021-03-11 22:40:59,614 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 172 transitions, 518 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,615 INFO L241 Difference]: Finished difference. Result has 60 places, 172 transitions, 508 flow [2021-03-11 22:40:59,615 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=508, PETRI_PLACES=60, PETRI_TRANSITIONS=172} [2021-03-11 22:40:59,615 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -20 predicate places. [2021-03-11 22:40:59,615 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 172 transitions, 508 flow [2021-03-11 22:40:59,616 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,616 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] [2021-03-11 22:40:59,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 22:40:59,616 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,616 INFO L82 PathProgramCache]: Analyzing trace with hash -2139909891, now seen corresponding path program 1 times [2021-03-11 22:40:59,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714429890] [2021-03-11 22:40:59,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,639 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 22:40:59,639 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714429890] [2021-03-11 22:40:59,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189591015] [2021-03-11 22:40:59,640 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:59,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:59,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:59,641 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:59,641 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 172 transitions, 508 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,641 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:59,641 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:59,641 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,753 INFO L129 PetriNetUnfolder]: 3131/4198 cut-off events. [2021-03-11 22:40:59,754 INFO L130 PetriNetUnfolder]: For 1040/1040 co-relation queries the response was YES. [2021-03-11 22:40:59,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4221 conditions, 4198 events. 3131/4198 cut-off events. For 1040/1040 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 19986 event pairs, 0 based on Foata normal form. 1039/5237 useless extension candidates. Maximal degree in co-relation 4213. Up to 660 conditions per place. [2021-03-11 22:40:59,769 INFO L132 encePairwiseOnDemand]: 224/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/148 dead transitions. [2021-03-11 22:40:59,769 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 148 transitions, 440 flow [2021-03-11 22:40:59,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2021-03-11 22:40:59,771 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.960618846694796 [2021-03-11 22:40:59,771 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,771 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 683 transitions. [2021-03-11 22:40:59,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.66666666666666) internal successors, (683), 3 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,774 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,774 INFO L185 Difference]: Start difference. First operand has 60 places, 172 transitions, 508 flow. Second operand 3 states and 683 transitions. [2021-03-11 22:40:59,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 148 transitions, 440 flow [2021-03-11 22:40:59,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 148 transitions, 439 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,776 INFO L241 Difference]: Finished difference. Result has 61 places, 148 transitions, 437 flow [2021-03-11 22:40:59,777 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=435, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=437, PETRI_PLACES=61, PETRI_TRANSITIONS=148} [2021-03-11 22:40:59,777 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -19 predicate places. [2021-03-11 22:40:59,777 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 148 transitions, 437 flow [2021-03-11 22:40:59,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,777 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,777 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] [2021-03-11 22:40:59,777 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 22:40:59,777 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1716577403, now seen corresponding path program 1 times [2021-03-11 22:40:59,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765006067] [2021-03-11 22:40:59,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,792 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 22:40:59,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765006067] [2021-03-11 22:40:59,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165628071] [2021-03-11 22:40:59,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:59,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:59,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:59,794 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:59,794 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 148 transitions, 437 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,794 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:59,794 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:59,794 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,840 INFO L129 PetriNetUnfolder]: 1080/1560 cut-off events. [2021-03-11 22:40:59,840 INFO L130 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2021-03-11 22:40:59,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1650 conditions, 1560 events. 1080/1560 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6659 event pairs, 0 based on Foata normal form. 319/1879 useless extension candidates. Maximal degree in co-relation 1642. Up to 280 conditions per place. [2021-03-11 22:40:59,845 INFO L132 encePairwiseOnDemand]: 227/237 looper letters, 3 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2021-03-11 22:40:59,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 139 transitions, 418 flow [2021-03-11 22:40:59,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-11 22:40:59,847 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-11 22:40:59,847 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,849 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,849 INFO L185 Difference]: Start difference. First operand has 61 places, 148 transitions, 437 flow. Second operand 3 states and 682 transitions. [2021-03-11 22:40:59,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 139 transitions, 418 flow [2021-03-11 22:40:59,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 139 transitions, 417 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,851 INFO L241 Difference]: Finished difference. Result has 62 places, 139 transitions, 411 flow [2021-03-11 22:40:59,851 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=411, PETRI_PLACES=62, PETRI_TRANSITIONS=139} [2021-03-11 22:40:59,851 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -18 predicate places. [2021-03-11 22:40:59,851 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 139 transitions, 411 flow [2021-03-11 22:40:59,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,852 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,852 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] [2021-03-11 22:40:59,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-11 22:40:59,852 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,852 INFO L82 PathProgramCache]: Analyzing trace with hash -595323485, now seen corresponding path program 1 times [2021-03-11 22:40:59,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932935653] [2021-03-11 22:40:59,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,867 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,870 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 22:40:59,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932935653] [2021-03-11 22:40:59,870 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,870 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088918502] [2021-03-11 22:40:59,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:59,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:59,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:59,871 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:59,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 139 transitions, 411 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,872 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:59,872 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:59,872 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,916 INFO L129 PetriNetUnfolder]: 940/1392 cut-off events. [2021-03-11 22:40:59,916 INFO L130 PetriNetUnfolder]: For 158/158 co-relation queries the response was YES. [2021-03-11 22:40:59,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1553 conditions, 1392 events. 940/1392 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 6092 event pairs, 0 based on Foata normal form. 21/1413 useless extension candidates. Maximal degree in co-relation 1545. Up to 280 conditions per place. [2021-03-11 22:40:59,921 INFO L132 encePairwiseOnDemand]: 233/237 looper letters, 9 selfloop transitions, 1 changer transitions 0/136 dead transitions. [2021-03-11 22:40:59,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 136 transitions, 422 flow [2021-03-11 22:40:59,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-11 22:40:59,922 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-11 22:40:59,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,924 INFO L185 Difference]: Start difference. First operand has 62 places, 139 transitions, 411 flow. Second operand 3 states and 682 transitions. [2021-03-11 22:40:59,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 136 transitions, 422 flow [2021-03-11 22:40:59,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 136 transitions, 421 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,926 INFO L241 Difference]: Finished difference. Result has 63 places, 136 transitions, 403 flow [2021-03-11 22:40:59,926 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=63, PETRI_TRANSITIONS=136} [2021-03-11 22:40:59,926 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -17 predicate places. [2021-03-11 22:40:59,926 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 136 transitions, 403 flow [2021-03-11 22:40:59,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,927 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,927 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] [2021-03-11 22:40:59,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-11 22:40:59,927 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1237269799, now seen corresponding path program 1 times [2021-03-11 22:40:59,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710312348] [2021-03-11 22:40:59,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,939 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,942 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 22:40:59,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710312348] [2021-03-11 22:40:59,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881456070] [2021-03-11 22:40:59,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:40:59,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:40:59,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:40:59,943 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:40:59,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 136 transitions, 403 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,944 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:40:59,944 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:40:59,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:40:59,976 INFO L129 PetriNetUnfolder]: 611/972 cut-off events. [2021-03-11 22:40:59,976 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2021-03-11 22:40:59,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1064 conditions, 972 events. 611/972 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4223 event pairs, 0 based on Foata normal form. 70/1042 useless extension candidates. Maximal degree in co-relation 1056. Up to 165 conditions per place. [2021-03-11 22:40:59,979 INFO L132 encePairwiseOnDemand]: 231/237 looper letters, 7 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2021-03-11 22:40:59,979 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 131 transitions, 404 flow [2021-03-11 22:40:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:40:59,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:40:59,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-11 22:40:59,980 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-11 22:40:59,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:40:59,981 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-11 22:40:59,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,982 INFO L185 Difference]: Start difference. First operand has 63 places, 136 transitions, 403 flow. Second operand 3 states and 682 transitions. [2021-03-11 22:40:59,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 131 transitions, 404 flow [2021-03-11 22:40:59,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 131 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:40:59,984 INFO L241 Difference]: Finished difference. Result has 64 places, 131 transitions, 389 flow [2021-03-11 22:40:59,984 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=389, PETRI_PLACES=64, PETRI_TRANSITIONS=131} [2021-03-11 22:40:59,984 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -16 predicate places. [2021-03-11 22:40:59,984 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 131 transitions, 389 flow [2021-03-11 22:40:59,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:40:59,985 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:40:59,985 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] [2021-03-11 22:40:59,985 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-11 22:40:59,985 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:40:59,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:40:59,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1425812553, now seen corresponding path program 1 times [2021-03-11 22:40:59,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:40:59,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70382539] [2021-03-11 22:40:59,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:40:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:40:59,995 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:40:59,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:40:59,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:40:59,999 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 22:40:59,999 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70382539] [2021-03-11 22:40:59,999 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:40:59,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:40:59,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603589737] [2021-03-11 22:40:59,999 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:40:59,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:00,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:41:00,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:41:00,008 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:41:00,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 131 transitions, 389 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:00,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:41:00,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:00,038 INFO L129 PetriNetUnfolder]: 506/832 cut-off events. [2021-03-11 22:41:00,038 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-11 22:41:00,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 925 conditions, 832 events. 506/832 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 3648 event pairs, 0 based on Foata normal form. 20/852 useless extension candidates. Maximal degree in co-relation 917. Up to 165 conditions per place. [2021-03-11 22:41:00,041 INFO L132 encePairwiseOnDemand]: 232/237 looper letters, 8 selfloop transitions, 1 changer transitions 0/127 dead transitions. [2021-03-11 22:41:00,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 127 transitions, 395 flow [2021-03-11 22:41:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:41:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:41:00,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-11 22:41:00,042 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-11 22:41:00,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:00,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,043 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,044 INFO L185 Difference]: Start difference. First operand has 64 places, 131 transitions, 389 flow. Second operand 3 states and 682 transitions. [2021-03-11 22:41:00,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 127 transitions, 395 flow [2021-03-11 22:41:00,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 127 transitions, 394 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:41:00,046 INFO L241 Difference]: Finished difference. Result has 65 places, 127 transitions, 378 flow [2021-03-11 22:41:00,046 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=65, PETRI_TRANSITIONS=127} [2021-03-11 22:41:00,046 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -15 predicate places. [2021-03-11 22:41:00,046 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 127 transitions, 378 flow [2021-03-11 22:41:00,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,046 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:00,047 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] [2021-03-11 22:41:00,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-11 22:41:00,047 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:00,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1408985077, now seen corresponding path program 1 times [2021-03-11 22:41:00,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:00,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404489702] [2021-03-11 22:41:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:00,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:00,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:41:00,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:00,076 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 22:41:00,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404489702] [2021-03-11 22:41:00,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:00,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:41:00,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736039952] [2021-03-11 22:41:00,076 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:41:00,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:00,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:41:00,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:41:00,078 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:41:00,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 127 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:00,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:41:00,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:00,094 INFO L129 PetriNetUnfolder]: 55/150 cut-off events. [2021-03-11 22:41:00,094 INFO L130 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2021-03-11 22:41:00,095 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178 conditions, 150 events. 55/150 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 418 event pairs, 0 based on Foata normal form. 66/216 useless extension candidates. Maximal degree in co-relation 170. Up to 20 conditions per place. [2021-03-11 22:41:00,095 INFO L132 encePairwiseOnDemand]: 225/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/105 dead transitions. [2021-03-11 22:41:00,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 105 transitions, 316 flow [2021-03-11 22:41:00,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:41:00,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:41:00,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 682 transitions. [2021-03-11 22:41:00,097 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9592123769338959 [2021-03-11 22:41:00,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:00,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 682 transitions. [2021-03-11 22:41:00,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,103 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,103 INFO L185 Difference]: Start difference. First operand has 65 places, 127 transitions, 378 flow. Second operand 3 states and 682 transitions. [2021-03-11 22:41:00,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 105 transitions, 316 flow [2021-03-11 22:41:00,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 105 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:41:00,105 INFO L241 Difference]: Finished difference. Result has 66 places, 105 transitions, 313 flow [2021-03-11 22:41:00,106 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=66, PETRI_TRANSITIONS=105} [2021-03-11 22:41:00,106 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -14 predicate places. [2021-03-11 22:41:00,106 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 105 transitions, 313 flow [2021-03-11 22:41:00,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,106 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:00,106 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] [2021-03-11 22:41:00,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-11 22:41:00,107 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1970267585, now seen corresponding path program 1 times [2021-03-11 22:41:00,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:00,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146935071] [2021-03-11 22:41:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:00,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:00,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-11 22:41:00,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:00,135 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 22:41:00,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146935071] [2021-03-11 22:41:00,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:00,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-11 22:41:00,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312779862] [2021-03-11 22:41:00,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-11 22:41:00,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:00,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-11 22:41:00,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-11 22:41:00,137 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 237 [2021-03-11 22:41:00,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 105 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:00,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 237 [2021-03-11 22:41:00,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:00,146 INFO L129 PetriNetUnfolder]: 0/40 cut-off events. [2021-03-11 22:41:00,147 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-11 22:41:00,147 INFO L84 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 40 events. 0/40 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 25 event pairs, 0 based on Foata normal form. 10/50 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-11 22:41:00,147 INFO L132 encePairwiseOnDemand]: 226/237 looper letters, 1 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2021-03-11 22:41:00,147 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 40 transitions, 122 flow [2021-03-11 22:41:00,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-11 22:41:00,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-11 22:41:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2021-03-11 22:41:00,148 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9578059071729957 [2021-03-11 22:41:00,148 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 681 transitions. [2021-03-11 22:41:00,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 681 transitions. [2021-03-11 22:41:00,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:00,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 681 transitions. [2021-03-11 22:41:00,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,150 INFO L185 Difference]: Start difference. First operand has 66 places, 105 transitions, 313 flow. Second operand 3 states and 681 transitions. [2021-03-11 22:41:00,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 40 transitions, 122 flow [2021-03-11 22:41:00,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 40 transitions, 121 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:41:00,151 INFO L241 Difference]: Finished difference. Result has 67 places, 40 transitions, 119 flow [2021-03-11 22:41:00,151 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=67, PETRI_TRANSITIONS=40} [2021-03-11 22:41:00,151 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, -13 predicate places. [2021-03-11 22:41:00,151 INFO L480 AbstractCegarLoop]: Abstraction has has 67 places, 40 transitions, 119 flow [2021-03-11 22:41:00,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,151 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:00,151 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] [2021-03-11 22:41:00,151 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-11 22:41:00,152 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:00,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:00,152 INFO L82 PathProgramCache]: Analyzing trace with hash 906296117, now seen corresponding path program 1 times [2021-03-11 22:41:00,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:00,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476914472] [2021-03-11 22:41:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:00,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:00,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:00,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:00,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:41:00,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:41:00,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:41:00,277 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:41:00,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:41:00,295 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:41:00,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:41:00,329 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:41:00,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:41:00,372 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 22:41:00,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 22:41:00,416 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-11 22:41:00,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-11 22:41:00,469 INFO L142 QuantifierPusher]: treesize reduction 54, result has 57.5 percent of original size [2021-03-11 22:41:00,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-11 22:41:00,534 INFO L142 QuantifierPusher]: treesize reduction 54, result has 59.4 percent of original size [2021-03-11 22:41:00,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 22:41:00,605 INFO L142 QuantifierPusher]: treesize reduction 63, result has 58.0 percent of original size [2021-03-11 22:41:00,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-11 22:41:00,701 INFO L142 QuantifierPusher]: treesize reduction 81, result has 52.9 percent of original size [2021-03-11 22:41:00,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 91 [2021-03-11 22:41:00,788 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 22:41:00,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 22:41:00,856 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 22:41:00,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 22:41:00,916 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 22:41:00,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476914472] [2021-03-11 22:41:00,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:00,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 22:41:00,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594220182] [2021-03-11 22:41:00,917 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 22:41:00,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:00,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 22:41:00,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 22:41:00,919 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-11 22:41:00,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 40 transitions, 119 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:00,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:00,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-11 22:41:00,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:04,261 INFO L129 PetriNetUnfolder]: 61443/74062 cut-off events. [2021-03-11 22:41:04,261 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-11 22:41:04,818 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147831 conditions, 74062 events. 61443/74062 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4199. Compared 361876 event pairs, 20481 based on Foata normal form. 1/73083 useless extension candidates. Maximal degree in co-relation 147823. Up to 26625 conditions per place. [2021-03-11 22:41:05,088 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 90 selfloop transitions, 12 changer transitions 1/129 dead transitions. [2021-03-11 22:41:05,088 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 129 transitions, 503 flow [2021-03-11 22:41:05,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 22:41:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 22:41:05,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 22:41:05,092 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-11 22:41:05,092 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 22:41:05,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 22:41:05,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:05,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 22:41:05,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:05,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:05,102 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:05,102 INFO L185 Difference]: Start difference. First operand has 67 places, 40 transitions, 119 flow. Second operand 15 states and 3239 transitions. [2021-03-11 22:41:05,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 129 transitions, 503 flow [2021-03-11 22:41:05,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 129 transitions, 502 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-11 22:41:05,104 INFO L241 Difference]: Finished difference. Result has 93 places, 51 transitions, 213 flow [2021-03-11 22:41:05,104 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=213, PETRI_PLACES=93, PETRI_TRANSITIONS=51} [2021-03-11 22:41:05,104 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 13 predicate places. [2021-03-11 22:41:05,104 INFO L480 AbstractCegarLoop]: Abstraction has has 93 places, 51 transitions, 213 flow [2021-03-11 22:41:05,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:05,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:05,105 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] [2021-03-11 22:41:05,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-11 22:41:05,106 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:05,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:05,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1543338913, now seen corresponding path program 2 times [2021-03-11 22:41:05,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:05,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776343210] [2021-03-11 22:41:05,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:05,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:05,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:05,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:05,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:41:05,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:05,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:41:05,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:41:05,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:41:05,194 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:41:05,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:41:05,209 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:41:05,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:41:05,230 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:41:05,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:41:05,255 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:41:05,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:41:05,286 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:41:05,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:41:05,323 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 22:41:05,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 22:41:05,369 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 22:41:05,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 22:41:05,424 INFO L142 QuantifierPusher]: treesize reduction 81, result has 51.2 percent of original size [2021-03-11 22:41:05,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-03-11 22:41:05,488 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 22:41:05,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 22:41:05,562 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 22:41:05,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 22:41:05,627 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 22:41:05,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776343210] [2021-03-11 22:41:05,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:05,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 22:41:05,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88196957] [2021-03-11 22:41:05,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 22:41:05,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:05,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 22:41:05,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 22:41:05,631 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-11 22:41:05,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 51 transitions, 213 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:05,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:05,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-11 22:41:05,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:12,846 INFO L129 PetriNetUnfolder]: 82982/114212 cut-off events. [2021-03-11 22:41:12,846 INFO L130 PetriNetUnfolder]: For 122886/123119 co-relation queries the response was YES. [2021-03-11 22:41:14,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323330 conditions, 114212 events. 82982/114212 cut-off events. For 122886/123119 co-relation queries the response was YES. Maximal size of possible extension queue 5315. Compared 784065 event pairs, 27651 based on Foata normal form. 1/113231 useless extension candidates. Maximal degree in co-relation 323309. Up to 36883 conditions per place. [2021-03-11 22:41:14,641 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 150 selfloop transitions, 21 changer transitions 3/200 dead transitions. [2021-03-11 22:41:14,641 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 200 transitions, 1289 flow [2021-03-11 22:41:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 22:41:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 22:41:14,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 22:41:14,646 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-11 22:41:14,646 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 22:41:14,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 22:41:14,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:14,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 22:41:14,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:14,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:14,654 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:14,654 INFO L185 Difference]: Start difference. First operand has 93 places, 51 transitions, 213 flow. Second operand 15 states and 3239 transitions. [2021-03-11 22:41:14,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 200 transitions, 1289 flow [2021-03-11 22:41:14,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 200 transitions, 1252 flow, removed 12 selfloop flow, removed 2 redundant places. [2021-03-11 22:41:14,765 INFO L241 Difference]: Finished difference. Result has 117 places, 71 transitions, 439 flow [2021-03-11 22:41:14,766 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=439, PETRI_PLACES=117, PETRI_TRANSITIONS=71} [2021-03-11 22:41:14,766 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 37 predicate places. [2021-03-11 22:41:14,766 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 71 transitions, 439 flow [2021-03-11 22:41:14,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:14,767 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:14,767 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] [2021-03-11 22:41:14,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-11 22:41:14,767 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:14,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1229928589, now seen corresponding path program 3 times [2021-03-11 22:41:14,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:14,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322691782] [2021-03-11 22:41:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:14,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:14,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:14,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:14,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:14,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:41:14,825 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:14,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:41:14,832 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:41:14,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:41:14,843 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:41:14,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:41:14,857 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:41:14,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:41:14,877 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:41:14,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:41:14,901 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:41:14,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:41:14,934 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:41:14,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:41:14,972 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 22:41:14,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 22:41:15,017 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 22:41:15,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 22:41:15,093 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-11 22:41:15,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-11 22:41:15,163 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 22:41:15,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 22:41:15,243 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 22:41:15,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 22:41:15,302 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 22:41:15,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322691782] [2021-03-11 22:41:15,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:15,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 22:41:15,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762559707] [2021-03-11 22:41:15,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 22:41:15,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:15,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 22:41:15,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 22:41:15,306 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-11 22:41:15,307 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 71 transitions, 439 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:15,307 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:15,307 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-11 22:41:15,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:41:34,965 INFO L129 PetriNetUnfolder]: 124016/180624 cut-off events. [2021-03-11 22:41:34,965 INFO L130 PetriNetUnfolder]: For 512035/516426 co-relation queries the response was YES. [2021-03-11 22:41:36,950 INFO L84 FinitePrefix]: Finished finitePrefix Result has 662284 conditions, 180624 events. 124016/180624 cut-off events. For 512035/516426 co-relation queries the response was YES. Maximal size of possible extension queue 10377. Compared 1499381 event pairs, 29693 based on Foata normal form. 1/179633 useless extension candidates. Maximal degree in co-relation 662251. Up to 63529 conditions per place. [2021-03-11 22:41:37,651 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 152 selfloop transitions, 42 changer transitions 1/221 dead transitions. [2021-03-11 22:41:37,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 221 transitions, 1853 flow [2021-03-11 22:41:37,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 22:41:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 22:41:37,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 22:41:37,656 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-11 22:41:37,656 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 22:41:37,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 22:41:37,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:41:37,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 22:41:37,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:37,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:37,663 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:37,663 INFO L185 Difference]: Start difference. First operand has 117 places, 71 transitions, 439 flow. Second operand 15 states and 3239 transitions. [2021-03-11 22:41:37,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 221 transitions, 1853 flow [2021-03-11 22:41:43,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 221 transitions, 1785 flow, removed 27 selfloop flow, removed 3 redundant places. [2021-03-11 22:41:43,526 INFO L241 Difference]: Finished difference. Result has 140 places, 104 transitions, 916 flow [2021-03-11 22:41:43,526 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=916, PETRI_PLACES=140, PETRI_TRANSITIONS=104} [2021-03-11 22:41:43,526 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 60 predicate places. [2021-03-11 22:41:43,526 INFO L480 AbstractCegarLoop]: Abstraction has has 140 places, 104 transitions, 916 flow [2021-03-11 22:41:43,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:43,526 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:41:43,527 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] [2021-03-11 22:41:43,527 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-11 22:41:43,527 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:41:43,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:41:43,527 INFO L82 PathProgramCache]: Analyzing trace with hash -21043839, now seen corresponding path program 4 times [2021-03-11 22:41:43,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:41:43,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194663168] [2021-03-11 22:41:43,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:41:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:41:43,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:43,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:41:43,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:43,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:41:43,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:41:43,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:41:43,576 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-11 22:41:43,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-11 22:41:43,585 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-11 22:41:43,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-11 22:41:43,600 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-11 22:41:43,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-11 22:41:43,618 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-11 22:41:43,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-11 22:41:43,640 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-11 22:41:43,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-11 22:41:43,667 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-11 22:41:43,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-11 22:41:43,718 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-11 22:41:43,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-11 22:41:43,817 INFO L142 QuantifierPusher]: treesize reduction 81, result has 49.4 percent of original size [2021-03-11 22:41:43,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-03-11 22:41:43,884 INFO L142 QuantifierPusher]: treesize reduction 90, result has 49.2 percent of original size [2021-03-11 22:41:43,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-03-11 22:41:43,943 INFO L142 QuantifierPusher]: treesize reduction 99, result has 49.0 percent of original size [2021-03-11 22:41:43,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-03-11 22:41:44,005 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 22:41:44,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 22:41:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 22:41:44,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194663168] [2021-03-11 22:41:44,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:41:44,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 22:41:44,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178159327] [2021-03-11 22:41:44,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 22:41:44,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:41:44,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 22:41:44,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 22:41:44,064 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-11 22:41:44,065 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 104 transitions, 916 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:41:44,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:41:44,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-11 22:41:44,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-11 22:42:12,828 INFO L129 PetriNetUnfolder]: 169409/248969 cut-off events. [2021-03-11 22:42:12,829 INFO L130 PetriNetUnfolder]: For 1345372/1354226 co-relation queries the response was YES. [2021-03-11 22:42:15,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126667 conditions, 248969 events. 169409/248969 cut-off events. For 1345372/1354226 co-relation queries the response was YES. Maximal size of possible extension queue 15179. Compared 2208809 event pairs, 48412 based on Foata normal form. 1/247782 useless extension candidates. Maximal degree in co-relation 1126623. Up to 85386 conditions per place. [2021-03-11 22:42:17,327 INFO L132 encePairwiseOnDemand]: 223/237 looper letters, 196 selfloop transitions, 63 changer transitions 1/286 dead transitions. [2021-03-11 22:42:17,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 286 transitions, 3088 flow [2021-03-11 22:42:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-11 22:42:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-11 22:42:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3239 transitions. [2021-03-11 22:42:17,331 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2021-03-11 22:42:17,331 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3239 transitions. [2021-03-11 22:42:17,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3239 transitions. [2021-03-11 22:42:17,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-11 22:42:17,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3239 transitions. [2021-03-11 22:42:17,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 215.93333333333334) internal successors, (3239), 15 states have internal predecessors, (3239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:42:17,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:42:17,338 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 237.0) internal successors, (3792), 16 states have internal predecessors, (3792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:42:17,338 INFO L185 Difference]: Start difference. First operand has 140 places, 104 transitions, 916 flow. Second operand 15 states and 3239 transitions. [2021-03-11 22:42:17,338 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 286 transitions, 3088 flow [2021-03-11 22:42:33,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 286 transitions, 3009 flow, removed 28 selfloop flow, removed 2 redundant places. [2021-03-11 22:42:33,967 INFO L241 Difference]: Finished difference. Result has 164 places, 153 transitions, 1747 flow [2021-03-11 22:42:33,967 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=901, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1747, PETRI_PLACES=164, PETRI_TRANSITIONS=153} [2021-03-11 22:42:33,967 INFO L335 CegarLoopForPetriNet]: 80 programPoint places, 84 predicate places. [2021-03-11 22:42:33,967 INFO L480 AbstractCegarLoop]: Abstraction has has 164 places, 153 transitions, 1747 flow [2021-03-11 22:42:33,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:42:33,968 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-03-11 22:42:33,968 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] [2021-03-11 22:42:33,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-11 22:42:33,969 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION]=== [2021-03-11 22:42:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 22:42:33,969 INFO L82 PathProgramCache]: Analyzing trace with hash 922715895, now seen corresponding path program 5 times [2021-03-11 22:42:33,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 22:42:33,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460763362] [2021-03-11 22:42:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 22:42:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 22:42:34,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:42:34,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 22:42:34,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:42:34,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 22:42:34,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:42:34,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 22:42:34,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 22:42:34,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-11 22:42:34,021 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-11 22:42:34,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-11 22:42:34,034 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-11 22:42:34,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-11 22:42:34,052 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-11 22:42:34,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-11 22:42:34,074 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-11 22:42:34,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-11 22:42:34,110 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-11 22:42:34,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-11 22:42:34,154 INFO L142 QuantifierPusher]: treesize reduction 54, result has 55.4 percent of original size [2021-03-11 22:42:34,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-11 22:42:34,200 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-11 22:42:34,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-11 22:42:34,260 INFO L142 QuantifierPusher]: treesize reduction 72, result has 53.5 percent of original size [2021-03-11 22:42:34,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-03-11 22:42:34,313 INFO L142 QuantifierPusher]: treesize reduction 90, result has 50.8 percent of original size [2021-03-11 22:42:34,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 93 [2021-03-11 22:42:34,376 INFO L142 QuantifierPusher]: treesize reduction 108, result has 47.3 percent of original size [2021-03-11 22:42:34,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-03-11 22:42:34,429 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 22:42:34,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460763362] [2021-03-11 22:42:34,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 22:42:34,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-03-11 22:42:34,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774744730] [2021-03-11 22:42:34,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-11 22:42:34,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 22:42:34,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-11 22:42:34,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-03-11 22:42:34,432 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 209 out of 237 [2021-03-11 22:42:34,433 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 153 transitions, 1747 flow. Second operand has 15 states, 15 states have (on average 209.93333333333334) internal successors, (3149), 15 states have internal predecessors, (3149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 22:42:34,433 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-11 22:42:34,433 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 209 of 237 [2021-03-11 22:42:34,433 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand