/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 22:45:42,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 22:45:42,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 22:45:42,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 22:45:42,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 22:45:42,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 22:45:42,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 22:45:42,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 22:45:42,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 22:45:42,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 22:45:42,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 22:45:42,723 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 22:45:42,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 22:45:42,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 22:45:42,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 22:45:42,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 22:45:42,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 22:45:42,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 22:45:42,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 22:45:42,736 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 22:45:42,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 22:45:42,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 22:45:42,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 22:45:42,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 22:45:42,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-02-10 22:45:42,755 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-02-10 22:45:42,756 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-02-10 22:45:42,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-02-10 22:45:42,758 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 [2020-02-10 22:45:42,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 22:45:42,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 22:45:42,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 22:45:42,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 22:45:42,774 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 22:45:42,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 22:45:42,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 22:45:42,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 22:45:42,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 22:45:42,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 22:45:42,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 22:45:42,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 22:45:42,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 22:45:42,775 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 22:45:42,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 22:45:42,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 22:45:42,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 22:45:42,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 22:45:42,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 22:45:42,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 22:45:42,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 22:45:42,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:45:42,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 22:45:42,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 22:45:42,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 22:45:42,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 22:45:42,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 22:45:42,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-02-10 22:45:42,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 22:45:43,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 22:45:43,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 22:45:43,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 22:45:43,060 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 22:45:43,061 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 22:45:43,062 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2020-02-10 22:45:43,062 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2020-02-10 22:45:43,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 22:45:43,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 22:45:43,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 22:45:43,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 22:45:43,107 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 22:45:43,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 22:45:43,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 22:45:43,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 22:45:43,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 22:45:43,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 22:45:43,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 22:45:43,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 22:45:43,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 22:45:43,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (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 [2020-02-10 22:45:43,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 22:45:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 22:45:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 22:45:43,263 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 22:45:43,264 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 22:45:43,264 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 22:45:43,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 22:45:43,265 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 22:45:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 22:45:43,266 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-02-10 22:45:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-02-10 22:45:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-02-10 22:45:43,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 22:45:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 22:45:43,267 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 22:45:43,267 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2020-02-10 22:45:43,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2020-02-10 22:45:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2020-02-10 22:45:43,268 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 22:45:43,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 22:45:43,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 22:45:43,268 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-02-10 22:45:43,269 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-02-10 22:45:43,269 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-02-10 22:45:43,269 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-02-10 22:45:43,270 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-02-10 22:45:43,277 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-02-10 22:45:43,277 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2020-02-10 22:45:43,278 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2020-02-10 22:45:43,278 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2020-02-10 22:45:43,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-02-10 22:45:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-02-10 22:45:43,279 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-02-10 22:45:43,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2020-02-10 22:45:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2020-02-10 22:45:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2020-02-10 22:45:43,281 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-02-10 22:45:43,512 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 22:45:43,512 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 22:45:43,518 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:43 BoogieIcfgContainer [2020-02-10 22:45:43,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 22:45:43,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 22:45:43,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 22:45:43,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 22:45:43,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/2) ... [2020-02-10 22:45:43,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cfd38f and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:45:43, skipping insertion in model container [2020-02-10 22:45:43,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:43" (2/2) ... [2020-02-10 22:45:43,527 INFO L109 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2020-02-10 22:45:43,539 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 22:45:43,549 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 22:45:43,550 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 22:45:43,911 INFO L251 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-02-10 22:45:43,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 22:45:43,932 INFO L376 AbstractCegarLoop]: Hoare is false [2020-02-10 22:45:43,932 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 22:45:43,932 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-02-10 22:45:43,933 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 22:45:43,933 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 22:45:43,933 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 22:45:43,933 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 22:45:43,951 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 92 places, 168 transitions [2020-02-10 22:45:53,913 INFO L129 PetriNetUnfolder]: 9217/11300 cut-off events. [2020-02-10 22:45:53,914 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2020-02-10 22:45:54,150 INFO L76 FinitePrefix]: Finished finitePrefix Result has 22598 conditions, 11300 events. 9217/11300 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 45887 event pairs. 0/11299 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2020-02-10 22:45:54,150 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 168 transitions [2020-02-10 22:45:54,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 155 transitions [2020-02-10 22:45:54,410 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 155 transitions [2020-02-10 22:45:54,411 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 155 transitions [2020-02-10 22:46:04,855 INFO L129 PetriNetUnfolder]: 9217/11298 cut-off events. [2020-02-10 22:46:04,855 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2020-02-10 22:46:04,954 INFO L76 FinitePrefix]: Finished finitePrefix Result has 22596 conditions, 11298 events. 9217/11298 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 44452 event pairs. 0/11298 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2020-02-10 22:46:05,157 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 155 transitions [2020-02-10 22:46:14,833 INFO L129 PetriNetUnfolder]: 9217/11298 cut-off events. [2020-02-10 22:46:14,834 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2020-02-10 22:46:14,912 INFO L76 FinitePrefix]: Finished finitePrefix Result has 22596 conditions, 11298 events. 9217/11298 cut-off events. For 11264/11264 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 44452 event pairs. 0/11298 useless extension candidates. Maximal degree in co-relation 10292. Up to 2772 conditions per place. [2020-02-10 22:46:15,096 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 5060 [2020-02-10 22:46:15,097 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-02-10 22:46:15,304 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1375 [2020-02-10 22:46:15,304 INFO L214 etLargeBlockEncoding]: Total number of compositions: 11 [2020-02-10 22:46:15,304 INFO L160 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 20898 [2020-02-10 22:46:24,379 INFO L129 PetriNetUnfolder]: 9217/11286 cut-off events. [2020-02-10 22:46:24,381 INFO L130 PetriNetUnfolder]: For 11264/11264 co-relation queries the response was YES. [2020-02-10 22:46:24,381 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:24,383 INFO L227 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] [2020-02-10 22:46:24,383 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:24,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:24,391 INFO L82 PathProgramCache]: Analyzing trace with hash -588949957, now seen corresponding path program 1 times [2020-02-10 22:46:24,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:24,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577526747] [2020-02-10 22:46:24,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:24,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:24,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577526747] [2020-02-10 22:46:24,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:24,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:24,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632113835] [2020-02-10 22:46:24,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:24,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:24,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:24,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:24,599 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:24,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 144 transitions. Second operand 3 states. [2020-02-10 22:46:24,602 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:24,602 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:24,604 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:28,310 INFO L129 PetriNetUnfolder]: 4557/5779 cut-off events. [2020-02-10 22:46:28,310 INFO L130 PetriNetUnfolder]: For 8653/8653 co-relation queries the response was YES. [2020-02-10 22:46:28,348 INFO L76 FinitePrefix]: Finished finitePrefix Result has 11747 conditions, 5779 events. 4557/5779 cut-off events. For 8653/8653 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 24427 event pairs. 848/6627 useless extension candidates. Maximal degree in co-relation 10260. Up to 1260 conditions per place. [2020-02-10 22:46:28,440 INFO L145 encePairwiseOnDemand]: 171/179 looper letters, 4 selfloop transitions, 1 changer transitions 0/137 dead transitions. [2020-02-10 22:46:28,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:28,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:28,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:28,455 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:28,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:28,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:28,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:28,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:28,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:28,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:28,474 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:28,476 INFO L178 Difference]: Start difference. First operand has 68 places, 144 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:28,479 INFO L206 Difference]: Finished difference. Result has 70 places, 137 transitions [2020-02-10 22:46:28,482 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=684, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=651, PETRI_PLACES=70, PETRI_TRANSITIONS=137} [2020-02-10 22:46:28,483 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 137 transitions [2020-02-10 22:46:31,005 INFO L129 PetriNetUnfolder]: 4557/5779 cut-off events. [2020-02-10 22:46:31,006 INFO L130 PetriNetUnfolder]: For 5757/5757 co-relation queries the response was YES. [2020-02-10 22:46:31,036 INFO L76 FinitePrefix]: Finished finitePrefix Result has 11571 conditions, 5779 events. 4557/5779 cut-off events. For 5757/5757 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 22362 event pairs. 0/5779 useless extension candidates. Maximal degree in co-relation 11533. Up to 1260 conditions per place. [2020-02-10 22:46:31,037 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 137 transitions [2020-02-10 22:46:31,136 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 137 transitions [2020-02-10 22:46:31,138 INFO L479 AbstractCegarLoop]: Abstraction has has 70 places, 137 transitions [2020-02-10 22:46:31,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:34,436 INFO L129 PetriNetUnfolder]: 4557/5778 cut-off events. [2020-02-10 22:46:34,437 INFO L130 PetriNetUnfolder]: For 5757/5757 co-relation queries the response was YES. [2020-02-10 22:46:34,437 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:34,437 INFO L227 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] [2020-02-10 22:46:34,437 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:34,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:34,438 INFO L82 PathProgramCache]: Analyzing trace with hash 519804281, now seen corresponding path program 1 times [2020-02-10 22:46:34,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:34,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435850813] [2020-02-10 22:46:34,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:34,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:34,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:34,501 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435850813] [2020-02-10 22:46:34,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:34,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:34,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596464402] [2020-02-10 22:46:34,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:34,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:34,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:34,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:34,505 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:34,506 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 137 transitions. Second operand 3 states. [2020-02-10 22:46:34,506 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:34,506 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:34,506 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:37,120 INFO L129 PetriNetUnfolder]: 3720/4812 cut-off events. [2020-02-10 22:46:37,120 INFO L130 PetriNetUnfolder]: For 6037/6037 co-relation queries the response was YES. [2020-02-10 22:46:37,151 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10067 conditions, 4812 events. 3720/4812 cut-off events. For 6037/6037 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20814 event pairs. 130/4942 useless extension candidates. Maximal degree in co-relation 10027. Up to 1260 conditions per place. [2020-02-10 22:46:37,223 INFO L145 encePairwiseOnDemand]: 174/179 looper letters, 7 selfloop transitions, 1 changer transitions 0/133 dead transitions. [2020-02-10 22:46:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:37,226 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:37,226 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:37,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:37,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:37,227 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:37,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:37,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:37,230 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:37,230 INFO L178 Difference]: Start difference. First operand has 70 places, 137 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:37,232 INFO L206 Difference]: Finished difference. Result has 72 places, 133 transitions [2020-02-10 22:46:37,232 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=633, PETRI_PLACES=72, PETRI_TRANSITIONS=133} [2020-02-10 22:46:37,233 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 133 transitions [2020-02-10 22:46:39,323 INFO L129 PetriNetUnfolder]: 3720/4812 cut-off events. [2020-02-10 22:46:39,323 INFO L130 PetriNetUnfolder]: For 4791/4791 co-relation queries the response was YES. [2020-02-10 22:46:39,342 INFO L76 FinitePrefix]: Finished finitePrefix Result has 9639 conditions, 4812 events. 3720/4812 cut-off events. For 4791/4791 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 19093 event pairs. 0/4812 useless extension candidates. Maximal degree in co-relation 9609. Up to 1260 conditions per place. [2020-02-10 22:46:39,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 133 transitions [2020-02-10 22:46:39,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 133 transitions [2020-02-10 22:46:39,416 INFO L479 AbstractCegarLoop]: Abstraction has has 72 places, 133 transitions [2020-02-10 22:46:39,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:41,550 INFO L129 PetriNetUnfolder]: 3720/4811 cut-off events. [2020-02-10 22:46:41,550 INFO L130 PetriNetUnfolder]: For 4791/4791 co-relation queries the response was YES. [2020-02-10 22:46:41,551 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:41,551 INFO L227 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] [2020-02-10 22:46:41,551 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:41,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1175399669, now seen corresponding path program 1 times [2020-02-10 22:46:41,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:41,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718542227] [2020-02-10 22:46:41,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:41,594 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718542227] [2020-02-10 22:46:41,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:41,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:41,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963843792] [2020-02-10 22:46:41,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:41,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:41,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:41,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:41,597 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:41,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 133 transitions. Second operand 3 states. [2020-02-10 22:46:41,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:41,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:41,598 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:43,445 INFO L129 PetriNetUnfolder]: 3488/4543 cut-off events. [2020-02-10 22:46:43,446 INFO L130 PetriNetUnfolder]: For 5490/5490 co-relation queries the response was YES. [2020-02-10 22:46:43,474 INFO L76 FinitePrefix]: Finished finitePrefix Result has 9531 conditions, 4543 events. 3488/4543 cut-off events. For 5490/5490 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 19723 event pairs. 37/4580 useless extension candidates. Maximal degree in co-relation 9499. Up to 1260 conditions per place. [2020-02-10 22:46:43,532 INFO L145 encePairwiseOnDemand]: 175/179 looper letters, 8 selfloop transitions, 1 changer transitions 0/130 dead transitions. [2020-02-10 22:46:43,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:43,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:43,538 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:43,538 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:43,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:43,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:43,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:43,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:43,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:43,541 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:43,542 INFO L178 Difference]: Start difference. First operand has 72 places, 133 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:43,543 INFO L206 Difference]: Finished difference. Result has 74 places, 130 transitions [2020-02-10 22:46:43,543 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=633, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=74, PETRI_TRANSITIONS=130} [2020-02-10 22:46:43,543 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 130 transitions [2020-02-10 22:46:44,945 INFO L129 PetriNetUnfolder]: 3488/4543 cut-off events. [2020-02-10 22:46:44,945 INFO L130 PetriNetUnfolder]: For 4523/4523 co-relation queries the response was YES. [2020-02-10 22:46:44,967 INFO L76 FinitePrefix]: Finished finitePrefix Result has 9103 conditions, 4543 events. 3488/4543 cut-off events. For 4523/4523 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 18127 event pairs. 0/4543 useless extension candidates. Maximal degree in co-relation 9075. Up to 1260 conditions per place. [2020-02-10 22:46:44,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 130 transitions [2020-02-10 22:46:45,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 130 transitions [2020-02-10 22:46:45,015 INFO L479 AbstractCegarLoop]: Abstraction has has 74 places, 130 transitions [2020-02-10 22:46:45,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:46,752 INFO L129 PetriNetUnfolder]: 3488/4542 cut-off events. [2020-02-10 22:46:46,752 INFO L130 PetriNetUnfolder]: For 4523/4523 co-relation queries the response was YES. [2020-02-10 22:46:46,752 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:46,752 INFO L227 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] [2020-02-10 22:46:46,753 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:46,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1344755149, now seen corresponding path program 1 times [2020-02-10 22:46:46,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:46,753 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325430709] [2020-02-10 22:46:46,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:46,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:46,786 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325430709] [2020-02-10 22:46:46,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:46,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:46,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10876692] [2020-02-10 22:46:46,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:46,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:46,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:46,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:46,788 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:46,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 130 transitions. Second operand 3 states. [2020-02-10 22:46:46,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:46,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:46,789 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:47,689 INFO L129 PetriNetUnfolder]: 2424/3268 cut-off events. [2020-02-10 22:46:47,690 INFO L130 PetriNetUnfolder]: For 4255/4255 co-relation queries the response was YES. [2020-02-10 22:46:47,708 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6857 conditions, 3268 events. 2424/3268 cut-off events. For 4255/4255 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 14676 event pairs. 134/3402 useless extension candidates. Maximal degree in co-relation 6828. Up to 840 conditions per place. [2020-02-10 22:46:47,747 INFO L145 encePairwiseOnDemand]: 173/179 looper letters, 6 selfloop transitions, 1 changer transitions 0/125 dead transitions. [2020-02-10 22:46:47,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:47,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:47,749 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:47,749 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:47,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:47,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:47,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:47,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:47,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:47,753 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:47,753 INFO L178 Difference]: Start difference. First operand has 74 places, 130 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:47,754 INFO L206 Difference]: Finished difference. Result has 76 places, 125 transitions [2020-02-10 22:46:47,754 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=620, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=597, PETRI_PLACES=76, PETRI_TRANSITIONS=125} [2020-02-10 22:46:47,754 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 125 transitions [2020-02-10 22:46:48,585 INFO L129 PetriNetUnfolder]: 2424/3268 cut-off events. [2020-02-10 22:46:48,586 INFO L130 PetriNetUnfolder]: For 3249/3249 co-relation queries the response was YES. [2020-02-10 22:46:48,599 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6555 conditions, 3268 events. 2424/3268 cut-off events. For 3249/3249 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 13435 event pairs. 0/3268 useless extension candidates. Maximal degree in co-relation 6526. Up to 840 conditions per place. [2020-02-10 22:46:48,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 125 transitions [2020-02-10 22:46:48,630 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 125 transitions [2020-02-10 22:46:48,630 INFO L479 AbstractCegarLoop]: Abstraction has has 76 places, 125 transitions [2020-02-10 22:46:48,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:49,442 INFO L129 PetriNetUnfolder]: 2424/3267 cut-off events. [2020-02-10 22:46:49,442 INFO L130 PetriNetUnfolder]: For 3249/3249 co-relation queries the response was YES. [2020-02-10 22:46:49,442 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:49,442 INFO L227 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] [2020-02-10 22:46:49,443 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:49,443 INFO L82 PathProgramCache]: Analyzing trace with hash 264125757, now seen corresponding path program 1 times [2020-02-10 22:46:49,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:49,443 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534347591] [2020-02-10 22:46:49,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:49,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:49,471 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534347591] [2020-02-10 22:46:49,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:49,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:49,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401241206] [2020-02-10 22:46:49,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:49,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:49,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:49,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:49,473 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:49,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 125 transitions. Second operand 3 states. [2020-02-10 22:46:49,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:49,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:49,474 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:49,615 INFO L129 PetriNetUnfolder]: 702/1044 cut-off events. [2020-02-10 22:46:49,615 INFO L130 PetriNetUnfolder]: For 1942/1942 co-relation queries the response was YES. [2020-02-10 22:46:49,621 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2120 conditions, 1044 events. 702/1044 cut-off events. For 1942/1942 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 4408 event pairs. 298/1342 useless extension candidates. Maximal degree in co-relation 2090. Up to 252 conditions per place. [2020-02-10 22:46:49,633 INFO L145 encePairwiseOnDemand]: 169/179 looper letters, 2 selfloop transitions, 1 changer transitions 0/116 dead transitions. [2020-02-10 22:46:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:49,635 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:49,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:49,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:49,638 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:49,638 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:49,638 INFO L178 Difference]: Start difference. First operand has 76 places, 125 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:49,639 INFO L206 Difference]: Finished difference. Result has 78 places, 116 transitions [2020-02-10 22:46:49,640 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=78, PETRI_TRANSITIONS=116} [2020-02-10 22:46:49,640 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 116 transitions [2020-02-10 22:46:49,749 INFO L129 PetriNetUnfolder]: 702/1044 cut-off events. [2020-02-10 22:46:49,749 INFO L130 PetriNetUnfolder]: For 1026/1026 co-relation queries the response was YES. [2020-02-10 22:46:49,755 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2109 conditions, 1044 events. 702/1044 cut-off events. For 1026/1026 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3978 event pairs. 0/1044 useless extension candidates. Maximal degree in co-relation 2079. Up to 252 conditions per place. [2020-02-10 22:46:49,756 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 116 transitions [2020-02-10 22:46:49,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 116 transitions [2020-02-10 22:46:49,767 INFO L479 AbstractCegarLoop]: Abstraction has has 78 places, 116 transitions [2020-02-10 22:46:49,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:49,870 INFO L129 PetriNetUnfolder]: 702/1043 cut-off events. [2020-02-10 22:46:49,870 INFO L130 PetriNetUnfolder]: For 1026/1026 co-relation queries the response was YES. [2020-02-10 22:46:49,870 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:49,871 INFO L227 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] [2020-02-10 22:46:49,871 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:49,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:49,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1419143189, now seen corresponding path program 1 times [2020-02-10 22:46:49,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:49,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527822994] [2020-02-10 22:46:49,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:49,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527822994] [2020-02-10 22:46:49,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:49,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:49,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302938652] [2020-02-10 22:46:49,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:49,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:49,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:49,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:49,910 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:49,911 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 116 transitions. Second operand 3 states. [2020-02-10 22:46:49,911 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:49,911 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:49,911 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:49,963 INFO L129 PetriNetUnfolder]: 186/337 cut-off events. [2020-02-10 22:46:49,963 INFO L130 PetriNetUnfolder]: For 636/636 co-relation queries the response was YES. [2020-02-10 22:46:49,965 INFO L76 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 337 events. 186/337 cut-off events. For 636/636 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1242 event pairs. 98/435 useless extension candidates. Maximal degree in co-relation 677. Up to 63 conditions per place. [2020-02-10 22:46:49,969 INFO L145 encePairwiseOnDemand]: 170/179 looper letters, 3 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2020-02-10 22:46:49,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:49,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:49,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:49,971 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:49,971 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:49,972 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:49,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:49,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:49,974 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:49,974 INFO L178 Difference]: Start difference. First operand has 78 places, 116 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:49,975 INFO L206 Difference]: Finished difference. Result has 80 places, 108 transitions [2020-02-10 22:46:49,975 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=554, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=516, PETRI_PLACES=80, PETRI_TRANSITIONS=108} [2020-02-10 22:46:49,976 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 108 transitions [2020-02-10 22:46:50,000 INFO L129 PetriNetUnfolder]: 186/337 cut-off events. [2020-02-10 22:46:50,000 INFO L130 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2020-02-10 22:46:50,002 INFO L76 FinitePrefix]: Finished finitePrefix Result has 697 conditions, 337 events. 186/337 cut-off events. For 320/320 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1122 event pairs. 0/337 useless extension candidates. Maximal degree in co-relation 666. Up to 63 conditions per place. [2020-02-10 22:46:50,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 108 transitions [2020-02-10 22:46:50,006 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 108 transitions [2020-02-10 22:46:50,007 INFO L479 AbstractCegarLoop]: Abstraction has has 80 places, 108 transitions [2020-02-10 22:46:50,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:50,030 INFO L129 PetriNetUnfolder]: 186/336 cut-off events. [2020-02-10 22:46:50,030 INFO L130 PetriNetUnfolder]: For 320/320 co-relation queries the response was YES. [2020-02-10 22:46:50,030 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:50,030 INFO L227 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] [2020-02-10 22:46:50,030 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:50,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2133215389, now seen corresponding path program 1 times [2020-02-10 22:46:50,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:50,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382537047] [2020-02-10 22:46:50,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:50,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:50,056 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382537047] [2020-02-10 22:46:50,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:50,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:50,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762137476] [2020-02-10 22:46:50,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:50,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:50,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:50,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:50,058 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:50,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 108 transitions. Second operand 3 states. [2020-02-10 22:46:50,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:50,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:50,059 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:50,135 INFO L129 PetriNetUnfolder]: 182/332 cut-off events. [2020-02-10 22:46:50,136 INFO L130 PetriNetUnfolder]: For 391/391 co-relation queries the response was YES. [2020-02-10 22:46:50,139 INFO L76 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 332 events. 182/332 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1223 event pairs. 1/333 useless extension candidates. Maximal degree in co-relation 692. Up to 63 conditions per place. [2020-02-10 22:46:50,143 INFO L145 encePairwiseOnDemand]: 177/179 looper letters, 10 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2020-02-10 22:46:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:50,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:50,145 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:50,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:50,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:50,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:50,148 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:50,148 INFO L178 Difference]: Start difference. First operand has 80 places, 108 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:50,149 INFO L206 Difference]: Finished difference. Result has 82 places, 107 transitions [2020-02-10 22:46:50,149 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=82, PETRI_TRANSITIONS=107} [2020-02-10 22:46:50,149 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 107 transitions [2020-02-10 22:46:50,178 INFO L129 PetriNetUnfolder]: 182/332 cut-off events. [2020-02-10 22:46:50,178 INFO L130 PetriNetUnfolder]: For 316/316 co-relation queries the response was YES. [2020-02-10 22:46:50,182 INFO L76 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 332 events. 182/332 cut-off events. For 316/316 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1112 event pairs. 0/332 useless extension candidates. Maximal degree in co-relation 663. Up to 63 conditions per place. [2020-02-10 22:46:50,182 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 107 transitions [2020-02-10 22:46:50,188 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 107 transitions [2020-02-10 22:46:50,188 INFO L479 AbstractCegarLoop]: Abstraction has has 82 places, 107 transitions [2020-02-10 22:46:50,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:50,222 INFO L129 PetriNetUnfolder]: 182/331 cut-off events. [2020-02-10 22:46:50,222 INFO L130 PetriNetUnfolder]: For 316/316 co-relation queries the response was YES. [2020-02-10 22:46:50,222 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:50,223 INFO L227 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] [2020-02-10 22:46:50,223 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:50,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1457597455, now seen corresponding path program 1 times [2020-02-10 22:46:50,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:50,224 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140930800] [2020-02-10 22:46:50,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:50,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140930800] [2020-02-10 22:46:50,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:50,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:50,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23899693] [2020-02-10 22:46:50,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:50,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:50,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:50,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:50,258 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:50,259 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 107 transitions. Second operand 3 states. [2020-02-10 22:46:50,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:50,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:50,259 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:50,283 INFO L129 PetriNetUnfolder]: 29/88 cut-off events. [2020-02-10 22:46:50,283 INFO L130 PetriNetUnfolder]: For 180/180 co-relation queries the response was YES. [2020-02-10 22:46:50,284 INFO L76 FinitePrefix]: Finished finitePrefix Result has 204 conditions, 88 events. 29/88 cut-off events. For 180/180 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 181 event pairs. 35/123 useless extension candidates. Maximal degree in co-relation 177. Up to 12 conditions per place. [2020-02-10 22:46:50,285 INFO L145 encePairwiseOnDemand]: 168/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2020-02-10 22:46:50,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:50,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 513 transitions. [2020-02-10 22:46:50,287 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9553072625698324 [2020-02-10 22:46:50,287 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:50,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 513 transitions. [2020-02-10 22:46:50,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:50,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:50,291 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:50,291 INFO L178 Difference]: Start difference. First operand has 82 places, 107 transitions. Second operand 3 states and 513 transitions. [2020-02-10 22:46:50,291 INFO L206 Difference]: Finished difference. Result has 84 places, 63 transitions [2020-02-10 22:46:50,292 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=84, PETRI_TRANSITIONS=63} [2020-02-10 22:46:50,292 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 63 transitions [2020-02-10 22:46:50,301 INFO L129 PetriNetUnfolder]: 29/88 cut-off events. [2020-02-10 22:46:50,301 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2020-02-10 22:46:50,302 INFO L76 FinitePrefix]: Finished finitePrefix Result has 203 conditions, 88 events. 29/88 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 190 event pairs. 0/88 useless extension candidates. Maximal degree in co-relation 176. Up to 12 conditions per place. [2020-02-10 22:46:50,303 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 63 transitions [2020-02-10 22:46:50,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 63 transitions [2020-02-10 22:46:50,305 INFO L479 AbstractCegarLoop]: Abstraction has has 84 places, 63 transitions [2020-02-10 22:46:50,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:50,313 INFO L129 PetriNetUnfolder]: 29/87 cut-off events. [2020-02-10 22:46:50,313 INFO L130 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2020-02-10 22:46:50,314 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:50,314 INFO L227 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] [2020-02-10 22:46:50,314 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:50,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:50,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1471872347, now seen corresponding path program 1 times [2020-02-10 22:46:50,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:50,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591726607] [2020-02-10 22:46:50,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:50,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:50,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591726607] [2020-02-10 22:46:50,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:50,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:50,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286873379] [2020-02-10 22:46:50,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:50,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:50,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:50,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:50,356 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:50,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 63 transitions. Second operand 3 states. [2020-02-10 22:46:50,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:50,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:50,357 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:50,370 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2020-02-10 22:46:50,370 INFO L130 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2020-02-10 22:46:50,371 INFO L76 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 40 events. 3/40 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 38 event pairs. 9/49 useless extension candidates. Maximal degree in co-relation 82. Up to 4 conditions per place. [2020-02-10 22:46:50,372 INFO L145 encePairwiseOnDemand]: 172/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2020-02-10 22:46:50,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:50,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2020-02-10 22:46:50,374 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9478584729981379 [2020-02-10 22:46:50,375 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2020-02-10 22:46:50,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2020-02-10 22:46:50,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:50,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2020-02-10 22:46:50,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:50,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:50,377 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:50,377 INFO L178 Difference]: Start difference. First operand has 84 places, 63 transitions. Second operand 3 states and 509 transitions. [2020-02-10 22:46:50,378 INFO L206 Difference]: Finished difference. Result has 86 places, 39 transitions [2020-02-10 22:46:50,378 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=177, PETRI_PLACES=86, PETRI_TRANSITIONS=39} [2020-02-10 22:46:50,378 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 86 places, 39 transitions [2020-02-10 22:46:50,382 INFO L129 PetriNetUnfolder]: 3/40 cut-off events. [2020-02-10 22:46:50,382 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2020-02-10 22:46:50,383 INFO L76 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 40 events. 3/40 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs. 0/40 useless extension candidates. Maximal degree in co-relation 81. Up to 4 conditions per place. [2020-02-10 22:46:50,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 39 transitions [2020-02-10 22:46:50,384 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 39 transitions [2020-02-10 22:46:50,384 INFO L479 AbstractCegarLoop]: Abstraction has has 86 places, 39 transitions [2020-02-10 22:46:50,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:50,389 INFO L129 PetriNetUnfolder]: 3/39 cut-off events. [2020-02-10 22:46:50,389 INFO L130 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2020-02-10 22:46:50,389 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:50,389 INFO L227 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] [2020-02-10 22:46:50,390 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:50,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1697924845, now seen corresponding path program 1 times [2020-02-10 22:46:50,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:50,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141423997] [2020-02-10 22:46:50,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:50,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:50,419 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141423997] [2020-02-10 22:46:50,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:50,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:50,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099707068] [2020-02-10 22:46:50,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:50,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:50,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:50,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:50,421 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 179 [2020-02-10 22:46:50,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 39 transitions. Second operand 3 states. [2020-02-10 22:46:50,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:50,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 179 [2020-02-10 22:46:50,422 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:50,428 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2020-02-10 22:46:50,428 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2020-02-10 22:46:50,428 INFO L76 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 34 events. 0/34 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs. 2/36 useless extension candidates. Maximal degree in co-relation 71. Up to 2 conditions per place. [2020-02-10 22:46:50,429 INFO L145 encePairwiseOnDemand]: 176/179 looper letters, 1 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2020-02-10 22:46:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:50,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:50,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 505 transitions. [2020-02-10 22:46:50,432 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9404096834264432 [2020-02-10 22:46:50,432 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 505 transitions. [2020-02-10 22:46:50,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 505 transitions. [2020-02-10 22:46:50,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:50,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 505 transitions. [2020-02-10 22:46:50,433 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:50,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:50,434 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:50,434 INFO L178 Difference]: Start difference. First operand has 86 places, 39 transitions. Second operand 3 states and 505 transitions. [2020-02-10 22:46:50,435 INFO L206 Difference]: Finished difference. Result has 88 places, 34 transitions [2020-02-10 22:46:50,435 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=177, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=154, PETRI_PLACES=88, PETRI_TRANSITIONS=34} [2020-02-10 22:46:50,435 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 88 places, 34 transitions [2020-02-10 22:46:50,439 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2020-02-10 22:46:50,439 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2020-02-10 22:46:50,440 INFO L76 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 34 events. 0/34 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 19 event pairs. 0/34 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2020-02-10 22:46:50,440 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 34 transitions [2020-02-10 22:46:50,441 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 34 transitions [2020-02-10 22:46:50,441 INFO L479 AbstractCegarLoop]: Abstraction has has 88 places, 34 transitions [2020-02-10 22:46:50,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:50,446 INFO L129 PetriNetUnfolder]: 0/33 cut-off events. [2020-02-10 22:46:50,446 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2020-02-10 22:46:50,446 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:50,446 INFO L227 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] [2020-02-10 22:46:50,446 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:50,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:50,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1570696329, now seen corresponding path program 1 times [2020-02-10 22:46:50,447 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:50,447 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743944558] [2020-02-10 22:46:50,447 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:51,391 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2020-02-10 22:46:51,572 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-02-10 22:46:51,733 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-02-10 22:46:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:46:51,748 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743944558] [2020-02-10 22:46:51,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:51,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:46:51,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126762914] [2020-02-10 22:46:51,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:46:51,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:51,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:46:51,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:46:51,752 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:46:51,753 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 34 transitions. Second operand 13 states. [2020-02-10 22:46:51,753 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:51,753 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:46:51,754 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:47:03,299 INFO L129 PetriNetUnfolder]: 12291/15641 cut-off events. [2020-02-10 22:47:03,299 INFO L130 PetriNetUnfolder]: For 269/269 co-relation queries the response was YES. [2020-02-10 22:47:03,395 INFO L76 FinitePrefix]: Finished finitePrefix Result has 31326 conditions, 15641 events. 12291/15641 cut-off events. For 269/269 co-relation queries the response was YES. Maximal size of possible extension queue 965. Compared 73275 event pairs. 1/15275 useless extension candidates. Maximal degree in co-relation 31296. Up to 5633 conditions per place. [2020-02-10 22:47:03,584 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 65 selfloop transitions, 10 changer transitions 1/98 dead transitions. [2020-02-10 22:47:03,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:47:03,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:47:03,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:47:03,589 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:47:03,590 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:47:03,590 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:47:03,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:47:03,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:47:03,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:47:03,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:47:03,599 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:47:03,599 INFO L178 Difference]: Start difference. First operand has 88 places, 34 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:47:03,600 INFO L206 Difference]: Finished difference. Result has 111 places, 43 transitions [2020-02-10 22:47:03,600 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=233, PETRI_PLACES=111, PETRI_TRANSITIONS=43} [2020-02-10 22:47:03,601 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 111 places, 43 transitions [2020-02-10 22:47:03,618 INFO L129 PetriNetUnfolder]: 0/130 cut-off events. [2020-02-10 22:47:03,619 INFO L130 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2020-02-10 22:47:03,620 INFO L76 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 130 events. 0/130 cut-off events. For 109/109 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 579 event pairs. 0/115 useless extension candidates. Maximal degree in co-relation 292. Up to 11 conditions per place. [2020-02-10 22:47:03,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 111 places, 43 transitions [2020-02-10 22:47:03,623 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 110 places, 43 transitions [2020-02-10 22:47:03,624 INFO L479 AbstractCegarLoop]: Abstraction has has 110 places, 43 transitions [2020-02-10 22:47:03,624 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:47:03,640 INFO L129 PetriNetUnfolder]: 0/120 cut-off events. [2020-02-10 22:47:03,640 INFO L130 PetriNetUnfolder]: For 109/109 co-relation queries the response was YES. [2020-02-10 22:47:03,641 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:47:03,641 INFO L227 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] [2020-02-10 22:47:03,641 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:47:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:47:03,641 INFO L82 PathProgramCache]: Analyzing trace with hash -135164081, now seen corresponding path program 2 times [2020-02-10 22:47:03,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:47:03,642 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172414241] [2020-02-10 22:47:03,642 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:47:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:47:04,315 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 33 [2020-02-10 22:47:04,485 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 39 [2020-02-10 22:47:04,639 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 39 [2020-02-10 22:47:04,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:47:04,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172414241] [2020-02-10 22:47:04,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:47:04,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:47:04,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596026616] [2020-02-10 22:47:04,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:47:04,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:47:04,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:47:04,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:47:04,653 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:47:04,654 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 43 transitions. Second operand 13 states. [2020-02-10 22:47:04,654 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:47:04,654 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:47:04,654 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:47:37,300 INFO L129 PetriNetUnfolder]: 16075/21310 cut-off events. [2020-02-10 22:47:37,301 INFO L130 PetriNetUnfolder]: For 24108/24252 co-relation queries the response was YES. [2020-02-10 22:47:37,489 INFO L76 FinitePrefix]: Finished finitePrefix Result has 64460 conditions, 21310 events. 16075/21310 cut-off events. For 24108/24252 co-relation queries the response was YES. Maximal size of possible extension queue 1272. Compared 113025 event pairs. 1/20925 useless extension candidates. Maximal degree in co-relation 64418. Up to 7682 conditions per place. [2020-02-10 22:47:37,814 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 75 selfloop transitions, 18 changer transitions 1/116 dead transitions. [2020-02-10 22:47:37,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:47:37,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:47:37,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:47:37,820 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:47:37,820 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:47:37,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:47:37,821 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:47:37,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:47:37,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:47:37,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:47:37,828 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:47:37,828 INFO L178 Difference]: Start difference. First operand has 110 places, 43 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:47:37,829 INFO L206 Difference]: Finished difference. Result has 133 places, 57 transitions [2020-02-10 22:47:37,829 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=401, PETRI_PLACES=133, PETRI_TRANSITIONS=57} [2020-02-10 22:47:37,829 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 133 places, 57 transitions [2020-02-10 22:47:37,881 INFO L129 PetriNetUnfolder]: 0/386 cut-off events. [2020-02-10 22:47:37,881 INFO L130 PetriNetUnfolder]: For 531/541 co-relation queries the response was YES. [2020-02-10 22:47:37,885 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1027 conditions, 386 events. 0/386 cut-off events. For 531/541 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 3082 event pairs. 0/339 useless extension candidates. Maximal degree in co-relation 974. Up to 34 conditions per place. [2020-02-10 22:47:37,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 57 transitions [2020-02-10 22:47:37,890 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 132 places, 57 transitions [2020-02-10 22:47:37,891 INFO L479 AbstractCegarLoop]: Abstraction has has 132 places, 57 transitions [2020-02-10 22:47:37,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:47:37,934 INFO L129 PetriNetUnfolder]: 0/354 cut-off events. [2020-02-10 22:47:37,934 INFO L130 PetriNetUnfolder]: For 531/541 co-relation queries the response was YES. [2020-02-10 22:47:37,934 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:47:37,934 INFO L227 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] [2020-02-10 22:47:37,934 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:47:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:47:37,935 INFO L82 PathProgramCache]: Analyzing trace with hash -674818657, now seen corresponding path program 3 times [2020-02-10 22:47:37,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:47:37,935 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174477904] [2020-02-10 22:47:37,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:47:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:47:38,728 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 38 [2020-02-10 22:47:38,912 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 40 [2020-02-10 22:47:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:47:38,922 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174477904] [2020-02-10 22:47:38,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:47:38,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:47:38,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371588154] [2020-02-10 22:47:38,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:47:38,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:47:38,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:47:38,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:47:38,926 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:47:38,927 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 57 transitions. Second operand 13 states. [2020-02-10 22:47:38,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:47:38,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:47:38,928 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:48:44,136 INFO L129 PetriNetUnfolder]: 18351/25811 cut-off events. [2020-02-10 22:48:44,137 INFO L130 PetriNetUnfolder]: For 83123/83212 co-relation queries the response was YES. [2020-02-10 22:48:44,411 INFO L76 FinitePrefix]: Finished finitePrefix Result has 102984 conditions, 25811 events. 18351/25811 cut-off events. For 83123/83212 co-relation queries the response was YES. Maximal size of possible extension queue 1387. Compared 155248 event pairs. 1/25416 useless extension candidates. Maximal degree in co-relation 102930. Up to 10328 conditions per place. [2020-02-10 22:48:44,902 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 103 selfloop transitions, 16 changer transitions 1/142 dead transitions. [2020-02-10 22:48:44,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:48:44,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:48:44,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:48:44,908 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:48:44,908 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:48:44,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:48:44,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:48:44,910 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:48:44,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:48:44,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:48:44,916 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:48:44,916 INFO L178 Difference]: Start difference. First operand has 132 places, 57 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:48:44,917 INFO L206 Difference]: Finished difference. Result has 155 places, 71 transitions [2020-02-10 22:48:44,918 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=594, PETRI_PLACES=155, PETRI_TRANSITIONS=71} [2020-02-10 22:48:44,918 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 155 places, 71 transitions [2020-02-10 22:48:45,400 INFO L129 PetriNetUnfolder]: 0/761 cut-off events. [2020-02-10 22:48:45,401 INFO L130 PetriNetUnfolder]: For 1443/1464 co-relation queries the response was YES. [2020-02-10 22:48:45,407 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2114 conditions, 761 events. 0/761 cut-off events. For 1443/1464 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7789 event pairs. 0/673 useless extension candidates. Maximal degree in co-relation 2049. Up to 66 conditions per place. [2020-02-10 22:48:45,407 INFO L82 GeneralOperation]: Start removeDead. Operand has 155 places, 71 transitions [2020-02-10 22:48:45,418 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 154 places, 71 transitions [2020-02-10 22:48:45,418 INFO L479 AbstractCegarLoop]: Abstraction has has 154 places, 71 transitions [2020-02-10 22:48:45,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:48:45,534 INFO L129 PetriNetUnfolder]: 0/697 cut-off events. [2020-02-10 22:48:45,534 INFO L130 PetriNetUnfolder]: For 1443/1464 co-relation queries the response was YES. [2020-02-10 22:48:45,534 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:48:45,535 INFO L227 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] [2020-02-10 22:48:45,535 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:48:45,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:48:45,535 INFO L82 PathProgramCache]: Analyzing trace with hash -937261809, now seen corresponding path program 4 times [2020-02-10 22:48:45,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:48:45,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467129932] [2020-02-10 22:48:45,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:48:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:48:46,347 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-02-10 22:48:46,527 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2020-02-10 22:48:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:48:46,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467129932] [2020-02-10 22:48:46,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:48:46,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:48:46,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042320206] [2020-02-10 22:48:46,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:48:46,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:48:46,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:48:46,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:48:46,541 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:48:46,542 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 71 transitions. Second operand 13 states. [2020-02-10 22:48:46,542 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:48:46,542 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:48:46,542 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:50:44,099 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-02-10 22:51:00,576 INFO L129 PetriNetUnfolder]: 23201/32758 cut-off events. [2020-02-10 22:51:00,576 INFO L130 PetriNetUnfolder]: For 202731/202820 co-relation queries the response was YES. [2020-02-10 22:51:01,007 INFO L76 FinitePrefix]: Finished finitePrefix Result has 160662 conditions, 32758 events. 23201/32758 cut-off events. For 202731/202820 co-relation queries the response was YES. Maximal size of possible extension queue 1889. Compared 208043 event pairs. 1/32313 useless extension candidates. Maximal degree in co-relation 160596. Up to 15214 conditions per place. [2020-02-10 22:51:01,973 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 106 selfloop transitions, 16 changer transitions 1/145 dead transitions. [2020-02-10 22:51:01,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:51:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:51:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:51:01,980 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:51:01,981 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:51:01,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:51:01,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:51:01,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:51:01,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:51:01,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:51:01,989 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:51:01,989 INFO L178 Difference]: Start difference. First operand has 154 places, 71 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:51:01,990 INFO L206 Difference]: Finished difference. Result has 177 places, 81 transitions [2020-02-10 22:51:01,990 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=769, PETRI_PLACES=177, PETRI_TRANSITIONS=81} [2020-02-10 22:51:01,991 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 177 places, 81 transitions [2020-02-10 22:51:02,195 INFO L129 PetriNetUnfolder]: 0/925 cut-off events. [2020-02-10 22:51:02,195 INFO L130 PetriNetUnfolder]: For 2458/2482 co-relation queries the response was YES. [2020-02-10 22:51:02,206 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 925 events. 0/925 cut-off events. For 2458/2482 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10064 event pairs. 0/812 useless extension candidates. Maximal degree in co-relation 2683. Up to 83 conditions per place. [2020-02-10 22:51:02,206 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 81 transitions [2020-02-10 22:51:02,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 81 transitions [2020-02-10 22:51:02,224 INFO L479 AbstractCegarLoop]: Abstraction has has 176 places, 81 transitions [2020-02-10 22:51:02,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:51:02,386 INFO L129 PetriNetUnfolder]: 0/844 cut-off events. [2020-02-10 22:51:02,387 INFO L130 PetriNetUnfolder]: For 2458/2482 co-relation queries the response was YES. [2020-02-10 22:51:02,387 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:51:02,387 INFO L227 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] [2020-02-10 22:51:02,387 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:51:02,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:51:02,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2143797817, now seen corresponding path program 5 times [2020-02-10 22:51:02,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:51:02,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551463439] [2020-02-10 22:51:02,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:51:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:51:03,112 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-02-10 22:51:03,260 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 40 [2020-02-10 22:51:03,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:51:03,272 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551463439] [2020-02-10 22:51:03,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:51:03,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:51:03,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047251368] [2020-02-10 22:51:03,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:51:03,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:51:03,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:51:03,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:51:03,275 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:51:03,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 81 transitions. Second operand 13 states. [2020-02-10 22:51:03,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:51:03,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:51:03,276 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:53:44,940 INFO L129 PetriNetUnfolder]: 23201/32510 cut-off events. [2020-02-10 22:53:44,941 INFO L130 PetriNetUnfolder]: For 321474/323165 co-relation queries the response was YES. [2020-02-10 22:53:45,470 INFO L76 FinitePrefix]: Finished finitePrefix Result has 187736 conditions, 32510 events. 23201/32510 cut-off events. For 321474/323165 co-relation queries the response was YES. Maximal size of possible extension queue 1888. Compared 200480 event pairs. 1/32087 useless extension candidates. Maximal degree in co-relation 187658. Up to 14628 conditions per place. [2020-02-10 22:53:46,487 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 112 selfloop transitions, 14 changer transitions 1/149 dead transitions. [2020-02-10 22:53:46,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:53:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:53:46,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:53:46,491 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:53:46,491 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:53:46,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:53:46,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:53:46,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:53:46,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:53:46,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:53:46,498 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:53:46,498 INFO L178 Difference]: Start difference. First operand has 176 places, 81 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:53:46,498 INFO L206 Difference]: Finished difference. Result has 192 places, 83 transitions [2020-02-10 22:53:46,499 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=831, PETRI_PLACES=192, PETRI_TRANSITIONS=83} [2020-02-10 22:53:46,499 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 192 places, 83 transitions [2020-02-10 22:53:46,705 INFO L129 PetriNetUnfolder]: 0/919 cut-off events. [2020-02-10 22:53:46,705 INFO L130 PetriNetUnfolder]: For 2928/2952 co-relation queries the response was YES. [2020-02-10 22:53:46,716 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2889 conditions, 919 events. 0/919 cut-off events. For 2928/2952 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 10009 event pairs. 0/807 useless extension candidates. Maximal degree in co-relation 2807. Up to 82 conditions per place. [2020-02-10 22:53:46,716 INFO L82 GeneralOperation]: Start removeDead. Operand has 192 places, 83 transitions [2020-02-10 22:53:46,735 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 83 transitions [2020-02-10 22:53:46,735 INFO L479 AbstractCegarLoop]: Abstraction has has 191 places, 83 transitions [2020-02-10 22:53:46,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:53:46,901 INFO L129 PetriNetUnfolder]: 0/839 cut-off events. [2020-02-10 22:53:46,901 INFO L130 PetriNetUnfolder]: For 2928/2952 co-relation queries the response was YES. [2020-02-10 22:53:46,901 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:53:46,901 INFO L227 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] [2020-02-10 22:53:46,901 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:53:46,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:53:46,902 INFO L82 PathProgramCache]: Analyzing trace with hash 924595591, now seen corresponding path program 6 times [2020-02-10 22:53:46,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:53:46,902 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992460005] [2020-02-10 22:53:46,902 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:53:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:53:47,685 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-02-10 22:53:47,845 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 39 [2020-02-10 22:53:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:53:47,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992460005] [2020-02-10 22:53:47,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:53:47,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:53:47,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69071210] [2020-02-10 22:53:47,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:53:47,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:53:47,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:53:47,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:53:47,859 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:53:47,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 83 transitions. Second operand 13 states. [2020-02-10 22:53:47,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:53:47,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:53:47,860 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:56:33,933 INFO L129 PetriNetUnfolder]: 23198/32582 cut-off events. [2020-02-10 22:56:33,933 INFO L130 PetriNetUnfolder]: For 339804/341495 co-relation queries the response was YES. [2020-02-10 22:56:34,498 INFO L76 FinitePrefix]: Finished finitePrefix Result has 192208 conditions, 32582 events. 23198/32582 cut-off events. For 339804/341495 co-relation queries the response was YES. Maximal size of possible extension queue 1888. Compared 201685 event pairs. 1/32157 useless extension candidates. Maximal degree in co-relation 192125. Up to 14628 conditions per place. [2020-02-10 22:56:35,586 INFO L145 encePairwiseOnDemand]: 167/179 looper letters, 103 selfloop transitions, 20 changer transitions 1/146 dead transitions. [2020-02-10 22:56:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:56:35,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-02-10 22:56:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2092 transitions. [2020-02-10 22:56:35,591 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8990116029222175 [2020-02-10 22:56:35,591 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2092 transitions. [2020-02-10 22:56:35,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2092 transitions. [2020-02-10 22:56:35,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:56:35,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2092 transitions. [2020-02-10 22:56:35,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-02-10 22:56:35,599 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-02-10 22:56:35,599 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-02-10 22:56:35,599 INFO L178 Difference]: Start difference. First operand has 191 places, 83 transitions. Second operand 13 states and 2092 transitions. [2020-02-10 22:56:35,600 INFO L206 Difference]: Finished difference. Result has 207 places, 85 transitions [2020-02-10 22:56:35,601 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=831, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=912, PETRI_PLACES=207, PETRI_TRANSITIONS=85} [2020-02-10 22:56:35,601 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 207 places, 85 transitions [2020-02-10 22:56:35,838 INFO L129 PetriNetUnfolder]: 0/962 cut-off events. [2020-02-10 22:56:35,839 INFO L130 PetriNetUnfolder]: For 3633/3659 co-relation queries the response was YES. [2020-02-10 22:56:35,851 INFO L76 FinitePrefix]: Finished finitePrefix Result has 3175 conditions, 962 events. 0/962 cut-off events. For 3633/3659 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 10586 event pairs. 0/846 useless extension candidates. Maximal degree in co-relation 3088. Up to 85 conditions per place. [2020-02-10 22:56:35,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 207 places, 85 transitions [2020-02-10 22:56:35,871 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 206 places, 85 transitions [2020-02-10 22:56:35,871 INFO L479 AbstractCegarLoop]: Abstraction has has 206 places, 85 transitions [2020-02-10 22:56:35,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-02-10 22:56:36,057 INFO L129 PetriNetUnfolder]: 0/879 cut-off events. [2020-02-10 22:56:36,057 INFO L130 PetriNetUnfolder]: For 3633/3659 co-relation queries the response was YES. [2020-02-10 22:56:36,057 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:56:36,057 INFO L227 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] [2020-02-10 22:56:36,057 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:56:36,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:56:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1987845753, now seen corresponding path program 7 times [2020-02-10 22:56:36,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:56:36,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067147626] [2020-02-10 22:56:36,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:56:36,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:56:36,651 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 35 [2020-02-10 22:56:36,804 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-02-10 22:56:36,989 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 39 [2020-02-10 22:56:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 22:56:36,999 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067147626] [2020-02-10 22:56:36,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:56:37,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-02-10 22:56:37,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160686772] [2020-02-10 22:56:37,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-02-10 22:56:37,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:56:37,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-02-10 22:56:37,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-02-10 22:56:37,002 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 179 [2020-02-10 22:56:37,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 85 transitions. Second operand 13 states. [2020-02-10 22:56:37,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:56:37,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 179 [2020-02-10 22:56:37,003 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2020-02-10 22:59:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-02-10 22:59:48,153 WARN L544 AbstractCegarLoop]: Verification canceled [2020-02-10 22:59:48,156 WARN L227 ceAbstractionStarter]: Timeout [2020-02-10 22:59:48,157 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:59:48 BasicIcfg [2020-02-10 22:59:48,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 22:59:48,158 INFO L168 Benchmark]: Toolchain (without parser) took 845056.53 ms. Allocated memory was 136.8 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 118.7 MB in the beginning and 261.1 MB in the end (delta: -142.4 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,159 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.39 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.11 ms. Allocated memory is still 136.8 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,160 INFO L168 Benchmark]: Boogie Preprocessor took 27.62 ms. Allocated memory is still 136.8 MB. Free memory was 116.6 MB in the beginning and 115.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,160 INFO L168 Benchmark]: RCFGBuilder took 345.99 ms. Allocated memory is still 136.8 MB. Free memory was 115.5 MB in the beginning and 100.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,161 INFO L168 Benchmark]: TraceAbstraction took 844636.92 ms. Allocated memory was 136.8 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 99.8 MB in the beginning and 261.1 MB in the end (delta: -161.3 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-02-10 22:59:48,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.39 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.11 ms. Allocated memory is still 136.8 MB. Free memory was 118.5 MB in the beginning and 116.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.62 ms. Allocated memory is still 136.8 MB. Free memory was 116.6 MB in the beginning and 115.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 345.99 ms. Allocated memory is still 136.8 MB. Free memory was 115.5 MB in the beginning and 100.2 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 844636.92 ms. Allocated memory was 136.8 MB in the beginning and 3.2 GB in the end (delta: 3.0 GB). Free memory was 99.8 MB in the beginning and 261.1 MB in the end (delta: -161.3 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 20.8s, 79 ProgramPointsBefore, 68 ProgramPointsAfterwards, 155 TransitionsBefore, 144 TransitionsAfterwards, 5060 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 11 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1320 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1375 CheckedPairsTotal, 11 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 35]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 35). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (13states, 155/179 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 211703 conditions, 32864 events (24470/32863 cut-off events. For 412204/413895 co-relation queries the response was YES. Maximal size of possible extension queue 1986. Compared 196535 event pairs. 0/32893 useless extension candidates. Maximal degree in co-relation 211622. Up to 14550 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. Result: TIMEOUT, OverallTime: 844.2s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 778.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 31.3s, HoareTripleCheckerStatistics: 472 SDtfs, 489 SDslu, 481 SDs, 0 SdLazy, 850 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.7s AutomataMinimizationTime, 16 MinimizatonAttempts, 6 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 578 NumberOfCodeBlocks, 578 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 561 ConstructedInterpolants, 0 QuantifiedInterpolants, 293205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown