/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_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 22:45:42,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 22:45:42,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 22:45:42,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 22:45:42,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 22:45:42,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 22:45:42,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 22:45:42,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 22:45:42,809 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 22:45:42,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 22:45:42,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 22:45:42,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 22:45:42,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 22:45:42,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 22:45:42,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 22:45:42,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 22:45:42,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 22:45:42,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 22:45:42,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 22:45:42,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 22:45:42,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 22:45:42,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 22:45:42,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 22:45:42,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 22:45:42,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-02-10 22:45:42,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-02-10 22:45:42,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-02-10 22:45:42,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-02-10 22:45:42,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-02-10 22:45:42,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-02-10 22:45:42,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-02-10 22:45:42,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-02-10 22:45:42,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-02-10 22:45:42,840 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-02-10 22:45:42,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-02-10 22:45:42,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-02-10 22:45:42,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-02-10 22:45:42,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-02-10 22:45:42,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-02-10 22:45:42,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-02-10 22:45:42,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-02-10 22:45:42,847 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 22:45:42,874 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 22:45:42,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 22:45:42,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 22:45:42,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 22:45:42,876 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 22:45:42,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 22:45:42,876 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 22:45:42,877 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 22:45:42,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 22:45:42,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 22:45:42,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 22:45:42,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 22:45:42,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 22:45:42,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 22:45:42,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 22:45:42,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 22:45:42,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 22:45:42,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 22:45:42,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 22:45:42,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 22:45:42,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 22:45:42,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 22:45:42,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 22:45:42,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 22:45:42,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 22:45:42,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 22:45:42,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 22:45:42,882 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-02-10 22:45:42,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 22:45:43,172 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 22:45:43,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 22:45:43,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 22:45:43,193 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 22:45:43,194 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 22:45:43,195 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2020-02-10 22:45:43,195 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2020-02-10 22:45:43,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 22:45:43,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 22:45:43,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 22:45:43,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 22:45:43,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 22:45:43,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 22:45:43,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 22:45:43,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 22:45:43,274 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 22:45:43,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/1) ... [2020-02-10 22:45:43,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 22:45:43,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 22:45:43,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 22:45:43,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 22:45:43,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.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 22:45:43,366 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 22:45:43,366 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 22:45:43,366 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 22:45:43,367 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 22:45:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 22:45:43,367 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 22:45:43,367 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 22:45:43,367 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 22:45:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 22:45:43,368 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-02-10 22:45:43,368 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-02-10 22:45:43,368 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-02-10 22:45:43,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 22:45:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 22:45:43,369 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 22:45:43,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2020-02-10 22:45:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2020-02-10 22:45:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2020-02-10 22:45:43,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 22:45:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 22:45:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 22:45:43,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-02-10 22:45:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-02-10 22:45:43,371 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-02-10 22:45:43,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-02-10 22:45:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-02-10 22:45:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-02-10 22:45:43,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-02-10 22:45:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-02-10 22:45:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-02-10 22:45:43,373 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2020-02-10 22:45:43,373 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2020-02-10 22:45:43,373 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2020-02-10 22:45:43,374 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 22:45:43,685 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 22:45:43,685 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 22:45:43,689 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:43 BoogieIcfgContainer [2020-02-10 22:45:43,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 22:45:43,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 22:45:43,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 22:45:43,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 22:45:43,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 10:45:43" (1/2) ... [2020-02-10 22:45:43,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4347f7ac and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 10:45:43, skipping insertion in model container [2020-02-10 22:45:43,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 10:45:43" (2/2) ... [2020-02-10 22:45:43,697 INFO L109 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2020-02-10 22:45:43,708 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 22:45:43,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 22:45:43,717 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 22:45:43,963 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-02-10 22:45:43,984 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 22:45:43,984 INFO L376 AbstractCegarLoop]: Hoare is false [2020-02-10 22:45:43,984 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 22:45:43,984 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-02-10 22:45:43,985 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 22:45:43,985 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 22:45:43,985 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 22:45:43,985 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 22:45:44,001 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions [2020-02-10 22:45:47,290 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2020-02-10 22:45:47,290 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 22:45:47,355 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10304 conditions, 5153 events. 4097/5153 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20915 event pairs. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 22:45:47,356 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 143 transitions [2020-02-10 22:45:47,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 131 transitions [2020-02-10 22:45:47,471 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 131 transitions [2020-02-10 22:45:47,472 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions [2020-02-10 22:45:50,981 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2020-02-10 22:45:50,982 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 22:45:51,038 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 5151 events. 4097/5151 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20106 event pairs. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 22:45:51,179 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions [2020-02-10 22:45:53,925 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2020-02-10 22:45:53,925 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 22:45:53,982 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 5151 events. 4097/5151 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20106 event pairs. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 22:45:54,082 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3780 [2020-02-10 22:45:54,083 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-02-10 22:45:54,234 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1035 [2020-02-10 22:45:54,235 INFO L214 etLargeBlockEncoding]: Total number of compositions: 10 [2020-02-10 22:45:54,235 INFO L160 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6767 [2020-02-10 22:45:56,312 INFO L129 PetriNetUnfolder]: 4097/5140 cut-off events. [2020-02-10 22:45:56,312 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 22:45:56,312 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:45:56,313 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] [2020-02-10 22:45:56,314 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:45:56,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:45:56,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1775727540, now seen corresponding path program 1 times [2020-02-10 22:45:56,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:45:56,330 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421631538] [2020-02-10 22:45:56,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:45:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:45:56,533 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 22:45:56,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421631538] [2020-02-10 22:45:56,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:45:56,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:45:56,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949554968] [2020-02-10 22:45:56,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:45:56,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:45:56,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:45:56,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:45:56,567 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:45:56,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 121 transitions. Second operand 3 states. [2020-02-10 22:45:56,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:45:56,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:45:56,573 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:45:58,818 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2020-02-10 22:45:58,818 INFO L130 PetriNetUnfolder]: For 5812/5812 co-relation queries the response was YES. [2020-02-10 22:45:58,850 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 4762 events. 3764/4762 cut-off events. For 5812/5812 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 21863 event pairs. 46/4808 useless extension candidates. Maximal degree in co-relation 4719. Up to 1260 conditions per place. [2020-02-10 22:45:58,916 INFO L145 encePairwiseOnDemand]: 149/153 looper letters, 7 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2020-02-10 22:45:58,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:45:58,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:45:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:45:58,932 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:45:58,933 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:45:58,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:45:58,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:45:58,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:45:58,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:45:58,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:45:58,951 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:45:58,953 INFO L178 Difference]: Start difference. First operand has 62 places, 121 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:45:58,956 INFO L206 Difference]: Finished difference. Result has 64 places, 118 transitions [2020-02-10 22:45:58,958 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=559, PETRI_PLACES=64, PETRI_TRANSITIONS=118} [2020-02-10 22:45:58,959 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 118 transitions [2020-02-10 22:46:00,619 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2020-02-10 22:46:00,619 INFO L130 PetriNetUnfolder]: For 4742/4742 co-relation queries the response was YES. [2020-02-10 22:46:00,640 INFO L76 FinitePrefix]: Finished finitePrefix Result has 9536 conditions, 4762 events. 3764/4762 cut-off events. For 4742/4742 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 19114 event pairs. 0/4762 useless extension candidates. Maximal degree in co-relation 9511. Up to 1260 conditions per place. [2020-02-10 22:46:00,640 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 118 transitions [2020-02-10 22:46:00,712 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 118 transitions [2020-02-10 22:46:00,713 INFO L479 AbstractCegarLoop]: Abstraction has has 64 places, 118 transitions [2020-02-10 22:46:00,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:02,397 INFO L129 PetriNetUnfolder]: 3764/4761 cut-off events. [2020-02-10 22:46:02,398 INFO L130 PetriNetUnfolder]: For 4742/4742 co-relation queries the response was YES. [2020-02-10 22:46:02,398 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:02,398 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] [2020-02-10 22:46:02,398 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:02,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:02,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1528521544, now seen corresponding path program 1 times [2020-02-10 22:46:02,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:02,400 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211327346] [2020-02-10 22:46:02,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:02,435 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 22:46:02,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211327346] [2020-02-10 22:46:02,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:02,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:02,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348207670] [2020-02-10 22:46:02,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:02,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:02,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:02,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:02,441 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:02,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 118 transitions. Second operand 3 states. [2020-02-10 22:46:02,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:02,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:02,442 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:03,379 INFO L129 PetriNetUnfolder]: 2398/3149 cut-off events. [2020-02-10 22:46:03,379 INFO L130 PetriNetUnfolder]: For 4299/4299 co-relation queries the response was YES. [2020-02-10 22:46:03,397 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 3149 events. 2398/3149 cut-off events. For 4299/4299 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 14728 event pairs. 219/3368 useless extension candidates. Maximal degree in co-relation 6542. Up to 840 conditions per place. [2020-02-10 22:46:03,451 INFO L145 encePairwiseOnDemand]: 147/153 looper letters, 5 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2020-02-10 22:46:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:03,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:03,455 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:03,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:03,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:03,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:03,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:03,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:03,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:03,459 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:03,460 INFO L178 Difference]: Start difference. First operand has 64 places, 118 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:03,461 INFO L206 Difference]: Finished difference. Result has 66 places, 113 transitions [2020-02-10 22:46:03,462 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=66, PETRI_TRANSITIONS=113} [2020-02-10 22:46:03,462 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 113 transitions [2020-02-10 22:46:04,314 INFO L129 PetriNetUnfolder]: 2398/3149 cut-off events. [2020-02-10 22:46:04,314 INFO L130 PetriNetUnfolder]: For 3130/3130 co-relation queries the response was YES. [2020-02-10 22:46:04,335 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6312 conditions, 3149 events. 2398/3149 cut-off events. For 3130/3130 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 12963 event pairs. 0/3149 useless extension candidates. Maximal degree in co-relation 6286. Up to 840 conditions per place. [2020-02-10 22:46:04,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 113 transitions [2020-02-10 22:46:04,428 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 113 transitions [2020-02-10 22:46:04,429 INFO L479 AbstractCegarLoop]: Abstraction has has 66 places, 113 transitions [2020-02-10 22:46:04,429 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:05,247 INFO L129 PetriNetUnfolder]: 2398/3148 cut-off events. [2020-02-10 22:46:05,247 INFO L130 PetriNetUnfolder]: For 3130/3130 co-relation queries the response was YES. [2020-02-10 22:46:05,247 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:05,247 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] [2020-02-10 22:46:05,248 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:05,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:05,248 INFO L82 PathProgramCache]: Analyzing trace with hash -212622548, now seen corresponding path program 1 times [2020-02-10 22:46:05,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:05,248 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523962476] [2020-02-10 22:46:05,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:05,282 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 22:46:05,283 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523962476] [2020-02-10 22:46:05,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:05,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:05,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032437178] [2020-02-10 22:46:05,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:05,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:05,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:05,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:05,285 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:05,286 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 113 transitions. Second operand 3 states. [2020-02-10 22:46:05,286 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:05,286 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:05,286 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:05,620 INFO L129 PetriNetUnfolder]: 928/1314 cut-off events. [2020-02-10 22:46:05,620 INFO L130 PetriNetUnfolder]: For 2210/2210 co-relation queries the response was YES. [2020-02-10 22:46:05,632 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 1314 events. 928/1314 cut-off events. For 2210/2210 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5759 event pairs. 274/1588 useless extension candidates. Maximal degree in co-relation 2663. Up to 280 conditions per place. [2020-02-10 22:46:05,655 INFO L145 encePairwiseOnDemand]: 145/153 looper letters, 3 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2020-02-10 22:46:05,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:05,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:05,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:05,659 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:05,659 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:05,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:05,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:05,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:05,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:05,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:05,662 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:05,662 INFO L178 Difference]: Start difference. First operand has 66 places, 113 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:05,664 INFO L206 Difference]: Finished difference. Result has 68 places, 106 transitions [2020-02-10 22:46:05,666 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=68, PETRI_TRANSITIONS=106} [2020-02-10 22:46:05,666 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 68 places, 106 transitions [2020-02-10 22:46:05,916 INFO L129 PetriNetUnfolder]: 928/1314 cut-off events. [2020-02-10 22:46:05,916 INFO L130 PetriNetUnfolder]: For 1296/1296 co-relation queries the response was YES. [2020-02-10 22:46:05,926 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2644 conditions, 1314 events. 928/1314 cut-off events. For 1296/1296 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5208 event pairs. 0/1314 useless extension candidates. Maximal degree in co-relation 2617. Up to 280 conditions per place. [2020-02-10 22:46:05,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 106 transitions [2020-02-10 22:46:05,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 106 transitions [2020-02-10 22:46:05,947 INFO L479 AbstractCegarLoop]: Abstraction has has 68 places, 106 transitions [2020-02-10 22:46:05,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:06,111 INFO L129 PetriNetUnfolder]: 928/1313 cut-off events. [2020-02-10 22:46:06,112 INFO L130 PetriNetUnfolder]: For 1296/1296 co-relation queries the response was YES. [2020-02-10 22:46:06,112 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:06,112 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] [2020-02-10 22:46:06,112 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:06,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:06,112 INFO L82 PathProgramCache]: Analyzing trace with hash -25780770, now seen corresponding path program 1 times [2020-02-10 22:46:06,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:06,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112113299] [2020-02-10 22:46:06,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:06,143 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 22:46:06,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112113299] [2020-02-10 22:46:06,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:06,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:06,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848636296] [2020-02-10 22:46:06,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:06,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:06,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:06,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:06,147 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:06,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 106 transitions. Second operand 3 states. [2020-02-10 22:46:06,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:06,148 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:06,148 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:06,239 INFO L129 PetriNetUnfolder]: 419/657 cut-off events. [2020-02-10 22:46:06,239 INFO L130 PetriNetUnfolder]: For 1026/1026 co-relation queries the response was YES. [2020-02-10 22:46:06,243 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 657 events. 419/657 cut-off events. For 1026/1026 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2695 event pairs. 98/755 useless extension candidates. Maximal degree in co-relation 1350. Up to 108 conditions per place. [2020-02-10 22:46:06,253 INFO L145 encePairwiseOnDemand]: 146/153 looper letters, 4 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2020-02-10 22:46:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:06,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:06,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:06,256 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:06,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:06,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:06,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:06,259 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:06,259 INFO L178 Difference]: Start difference. First operand has 68 places, 106 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:06,260 INFO L206 Difference]: Finished difference. Result has 70 places, 100 transitions [2020-02-10 22:46:06,260 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=475, PETRI_PLACES=70, PETRI_TRANSITIONS=100} [2020-02-10 22:46:06,261 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 100 transitions [2020-02-10 22:46:06,338 INFO L129 PetriNetUnfolder]: 419/657 cut-off events. [2020-02-10 22:46:06,338 INFO L130 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2020-02-10 22:46:06,343 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 657 events. 419/657 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2517 event pairs. 0/657 useless extension candidates. Maximal degree in co-relation 1304. Up to 108 conditions per place. [2020-02-10 22:46:06,344 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 100 transitions [2020-02-10 22:46:06,353 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 100 transitions [2020-02-10 22:46:06,353 INFO L479 AbstractCegarLoop]: Abstraction has has 70 places, 100 transitions [2020-02-10 22:46:06,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:06,436 INFO L129 PetriNetUnfolder]: 419/656 cut-off events. [2020-02-10 22:46:06,436 INFO L130 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2020-02-10 22:46:06,437 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:06,437 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] [2020-02-10 22:46:06,437 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:06,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:06,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1946604532, now seen corresponding path program 1 times [2020-02-10 22:46:06,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:06,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652633433] [2020-02-10 22:46:06,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:06,484 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 22:46:06,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652633433] [2020-02-10 22:46:06,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:06,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:06,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322089592] [2020-02-10 22:46:06,486 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:06,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:06,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:06,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:06,488 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:06,493 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 100 transitions. Second operand 3 states. [2020-02-10 22:46:06,493 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:06,493 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:06,493 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:06,603 INFO L129 PetriNetUnfolder]: 414/651 cut-off events. [2020-02-10 22:46:06,603 INFO L130 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2020-02-10 22:46:06,608 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 651 events. 414/651 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2677 event pairs. 1/652 useless extension candidates. Maximal degree in co-relation 1363. Up to 108 conditions per place. [2020-02-10 22:46:06,619 INFO L145 encePairwiseOnDemand]: 151/153 looper letters, 9 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2020-02-10 22:46:06,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:06,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:06,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:06,621 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:06,621 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:06,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:06,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:06,624 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:06,624 INFO L178 Difference]: Start difference. First operand has 70 places, 100 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:06,625 INFO L206 Difference]: Finished difference. Result has 72 places, 99 transitions [2020-02-10 22:46:06,626 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=72, PETRI_TRANSITIONS=99} [2020-02-10 22:46:06,626 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 99 transitions [2020-02-10 22:46:06,677 INFO L129 PetriNetUnfolder]: 414/651 cut-off events. [2020-02-10 22:46:06,678 INFO L130 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2020-02-10 22:46:06,681 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 651 events. 414/651 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2483 event pairs. 0/651 useless extension candidates. Maximal degree in co-relation 1299. Up to 108 conditions per place. [2020-02-10 22:46:06,682 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 99 transitions [2020-02-10 22:46:06,688 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 99 transitions [2020-02-10 22:46:06,688 INFO L479 AbstractCegarLoop]: Abstraction has has 72 places, 99 transitions [2020-02-10 22:46:06,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:06,739 INFO L129 PetriNetUnfolder]: 414/650 cut-off events. [2020-02-10 22:46:06,739 INFO L130 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2020-02-10 22:46:06,739 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:06,739 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] [2020-02-10 22:46:06,739 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:06,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1603046746, now seen corresponding path program 1 times [2020-02-10 22:46:06,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:06,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822073519] [2020-02-10 22:46:06,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:06,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:06,768 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 22:46:06,768 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822073519] [2020-02-10 22:46:06,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:06,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:06,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682296968] [2020-02-10 22:46:06,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:06,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:06,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:06,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:06,771 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:06,771 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 99 transitions. Second operand 3 states. [2020-02-10 22:46:06,771 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:06,771 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:06,771 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:06,806 INFO L129 PetriNetUnfolder]: 100/201 cut-off events. [2020-02-10 22:46:06,806 INFO L130 PetriNetUnfolder]: For 389/389 co-relation queries the response was YES. [2020-02-10 22:46:06,808 INFO L76 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 201 events. 100/201 cut-off events. For 389/389 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 658 event pairs. 61/262 useless extension candidates. Maximal degree in co-relation 410. Up to 30 conditions per place. [2020-02-10 22:46:06,810 INFO L145 encePairwiseOnDemand]: 144/153 looper letters, 2 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2020-02-10 22:46:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:06,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:06,812 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:06,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,812 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:06,813 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:06,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:06,814 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:06,814 INFO L178 Difference]: Start difference. First operand has 72 places, 99 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:06,815 INFO L206 Difference]: Finished difference. Result has 74 places, 91 transitions [2020-02-10 22:46:06,815 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=74, PETRI_TRANSITIONS=91} [2020-02-10 22:46:06,815 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 91 transitions [2020-02-10 22:46:06,828 INFO L129 PetriNetUnfolder]: 100/201 cut-off events. [2020-02-10 22:46:06,828 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2020-02-10 22:46:06,830 INFO L76 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 201 events. 100/201 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 607 event pairs. 0/201 useless extension candidates. Maximal degree in co-relation 400. Up to 30 conditions per place. [2020-02-10 22:46:06,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 91 transitions [2020-02-10 22:46:06,832 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 91 transitions [2020-02-10 22:46:06,832 INFO L479 AbstractCegarLoop]: Abstraction has has 74 places, 91 transitions [2020-02-10 22:46:06,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:06,845 INFO L129 PetriNetUnfolder]: 100/200 cut-off events. [2020-02-10 22:46:06,845 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2020-02-10 22:46:06,845 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:06,845 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] [2020-02-10 22:46:06,845 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:06,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:06,846 INFO L82 PathProgramCache]: Analyzing trace with hash -208966068, now seen corresponding path program 1 times [2020-02-10 22:46:06,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:06,846 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329073017] [2020-02-10 22:46:06,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:06,874 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 22:46:06,875 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329073017] [2020-02-10 22:46:06,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:06,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:06,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789721240] [2020-02-10 22:46:06,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:06,876 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:06,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:06,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:06,878 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:06,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 91 transitions. Second operand 3 states. [2020-02-10 22:46:06,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:06,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:06,878 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:06,908 INFO L129 PetriNetUnfolder]: 53/133 cut-off events. [2020-02-10 22:46:06,909 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2020-02-10 22:46:06,910 INFO L76 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 133 events. 53/133 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 395 event pairs. 14/147 useless extension candidates. Maximal degree in co-relation 275. Up to 18 conditions per place. [2020-02-10 22:46:06,912 INFO L145 encePairwiseOnDemand]: 148/153 looper letters, 6 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2020-02-10 22:46:06,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:06,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:06,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:06,916 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:06,916 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:06,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:06,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:06,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:06,920 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:06,920 INFO L178 Difference]: Start difference. First operand has 74 places, 91 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:06,920 INFO L206 Difference]: Finished difference. Result has 76 places, 87 transitions [2020-02-10 22:46:06,921 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2020-02-10 22:46:06,921 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 87 transitions [2020-02-10 22:46:06,932 INFO L129 PetriNetUnfolder]: 53/133 cut-off events. [2020-02-10 22:46:06,932 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2020-02-10 22:46:06,933 INFO L76 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 133 events. 53/133 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 377 event pairs. 0/133 useless extension candidates. Maximal degree in co-relation 265. Up to 18 conditions per place. [2020-02-10 22:46:06,933 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 87 transitions [2020-02-10 22:46:06,935 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 87 transitions [2020-02-10 22:46:06,935 INFO L479 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions [2020-02-10 22:46:06,935 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:06,947 INFO L129 PetriNetUnfolder]: 53/132 cut-off events. [2020-02-10 22:46:06,948 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2020-02-10 22:46:06,948 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:06,948 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] [2020-02-10 22:46:06,948 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:06,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:06,948 INFO L82 PathProgramCache]: Analyzing trace with hash 523899338, now seen corresponding path program 1 times [2020-02-10 22:46:06,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:06,949 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997038858] [2020-02-10 22:46:06,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:06,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:06,989 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 22:46:06,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997038858] [2020-02-10 22:46:06,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:06,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:06,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727740204] [2020-02-10 22:46:06,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:06,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:06,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:06,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:06,991 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:06,992 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions. Second operand 3 states. [2020-02-10 22:46:06,992 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:06,992 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:06,992 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:07,024 INFO L129 PetriNetUnfolder]: 45/121 cut-off events. [2020-02-10 22:46:07,025 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2020-02-10 22:46:07,026 INFO L76 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 121 events. 45/121 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 343 event pairs. 3/124 useless extension candidates. Maximal degree in co-relation 252. Up to 18 conditions per place. [2020-02-10 22:46:07,029 INFO L145 encePairwiseOnDemand]: 150/153 looper letters, 8 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2020-02-10 22:46:07,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:07,031 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:07,031 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:07,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:07,033 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:07,034 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:07,034 INFO L178 Difference]: Start difference. First operand has 76 places, 87 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:07,034 INFO L206 Difference]: Finished difference. Result has 78 places, 85 transitions [2020-02-10 22:46:07,035 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=78, PETRI_TRANSITIONS=85} [2020-02-10 22:46:07,035 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 85 transitions [2020-02-10 22:46:07,060 INFO L129 PetriNetUnfolder]: 45/121 cut-off events. [2020-02-10 22:46:07,061 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2020-02-10 22:46:07,062 INFO L76 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 121 events. 45/121 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 320 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 242. Up to 18 conditions per place. [2020-02-10 22:46:07,063 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 85 transitions [2020-02-10 22:46:07,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 85 transitions [2020-02-10 22:46:07,065 INFO L479 AbstractCegarLoop]: Abstraction has has 78 places, 85 transitions [2020-02-10 22:46:07,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:07,079 INFO L129 PetriNetUnfolder]: 45/120 cut-off events. [2020-02-10 22:46:07,080 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2020-02-10 22:46:07,080 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:07,080 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] [2020-02-10 22:46:07,080 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:07,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:07,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1041955494, now seen corresponding path program 1 times [2020-02-10 22:46:07,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:07,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759470317] [2020-02-10 22:46:07,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:07,112 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 22:46:07,112 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759470317] [2020-02-10 22:46:07,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:07,112 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 22:46:07,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315816229] [2020-02-10 22:46:07,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 22:46:07,113 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:07,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 22:46:07,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 22:46:07,114 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 22:46:07,115 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 85 transitions. Second operand 3 states. [2020-02-10 22:46:07,115 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:07,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 22:46:07,115 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:07,162 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2020-02-10 22:46:07,162 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-02-10 22:46:07,163 INFO L76 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 31 events. 0/31 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs. 9/40 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2020-02-10 22:46:07,164 INFO L145 encePairwiseOnDemand]: 143/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2020-02-10 22:46:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 22:46:07,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 22:46:07,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 22:46:07,166 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 22:46:07,166 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:07,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 22:46:07,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 22:46:07,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 22:46:07,169 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 22:46:07,169 INFO L178 Difference]: Start difference. First operand has 78 places, 85 transitions. Second operand 3 states and 437 transitions. [2020-02-10 22:46:07,170 INFO L206 Difference]: Finished difference. Result has 80 places, 31 transitions [2020-02-10 22:46:07,170 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=80, PETRI_TRANSITIONS=31} [2020-02-10 22:46:07,170 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 31 transitions [2020-02-10 22:46:07,174 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2020-02-10 22:46:07,174 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-02-10 22:46:07,175 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 31 events. 0/31 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs. 0/31 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2020-02-10 22:46:07,175 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 31 transitions [2020-02-10 22:46:07,176 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 31 transitions [2020-02-10 22:46:07,176 INFO L479 AbstractCegarLoop]: Abstraction has has 80 places, 31 transitions [2020-02-10 22:46:07,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 22:46:07,180 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2020-02-10 22:46:07,180 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-02-10 22:46:07,181 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:07,181 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] [2020-02-10 22:46:07,181 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:07,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:07,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1952089610, now seen corresponding path program 1 times [2020-02-10 22:46:07,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:07,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112480552] [2020-02-10 22:46:07,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:08,003 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 22:46:08,156 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-02-10 22:46:08,167 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 22:46:08,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112480552] [2020-02-10 22:46:08,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:08,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:46:08,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607250359] [2020-02-10 22:46:08,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:46:08,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:08,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:46:08,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:46:08,171 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:46:08,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 31 transitions. Second operand 12 states. [2020-02-10 22:46:08,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:08,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:46:08,173 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:11,574 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-02-10 22:46:12,254 INFO L129 PetriNetUnfolder]: 5379/7392 cut-off events. [2020-02-10 22:46:12,254 INFO L130 PetriNetUnfolder]: For 469/469 co-relation queries the response was YES. [2020-02-10 22:46:12,281 INFO L76 FinitePrefix]: Finished finitePrefix Result has 14824 conditions, 7392 events. 5379/7392 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 36589 event pairs. 1/7167 useless extension candidates. Maximal degree in co-relation 14796. Up to 2561 conditions per place. [2020-02-10 22:46:12,371 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 54 selfloop transitions, 9 changer transitions 1/84 dead transitions. [2020-02-10 22:46:12,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:46:12,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:46:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:46:12,376 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:46:12,376 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:46:12,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:46:12,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:12,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:46:12,380 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:46:12,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:46:12,383 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:46:12,384 INFO L178 Difference]: Start difference. First operand has 80 places, 31 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:46:12,384 INFO L206 Difference]: Finished difference. Result has 101 places, 39 transitions [2020-02-10 22:46:12,385 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=211, PETRI_PLACES=101, PETRI_TRANSITIONS=39} [2020-02-10 22:46:12,385 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 101 places, 39 transitions [2020-02-10 22:46:12,399 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2020-02-10 22:46:12,399 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2020-02-10 22:46:12,400 INFO L76 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 116 events. 0/116 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 509 event pairs. 0/101 useless extension candidates. Maximal degree in co-relation 260. Up to 11 conditions per place. [2020-02-10 22:46:12,400 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 39 transitions [2020-02-10 22:46:12,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 39 transitions [2020-02-10 22:46:12,402 INFO L479 AbstractCegarLoop]: Abstraction has has 100 places, 39 transitions [2020-02-10 22:46:12,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:46:12,413 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2020-02-10 22:46:12,413 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2020-02-10 22:46:12,413 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:12,414 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] [2020-02-10 22:46:12,414 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:12,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:12,414 INFO L82 PathProgramCache]: Analyzing trace with hash 74667986, now seen corresponding path program 2 times [2020-02-10 22:46:12,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:12,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926144017] [2020-02-10 22:46:12,415 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:13,019 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2020-02-10 22:46:13,158 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-02-10 22:46:13,167 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 22:46:13,167 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926144017] [2020-02-10 22:46:13,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:13,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:46:13,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649041694] [2020-02-10 22:46:13,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:46:13,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:13,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:46:13,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:46:13,171 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:46:13,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 39 transitions. Second operand 12 states. [2020-02-10 22:46:13,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:13,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:46:13,172 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:20,421 INFO L129 PetriNetUnfolder]: 6661/9214 cut-off events. [2020-02-10 22:46:20,421 INFO L130 PetriNetUnfolder]: For 10866/11044 co-relation queries the response was YES. [2020-02-10 22:46:20,468 INFO L76 FinitePrefix]: Finished finitePrefix Result has 27966 conditions, 9214 events. 6661/9214 cut-off events. For 10866/11044 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 47875 event pairs. 1/8989 useless extension candidates. Maximal degree in co-relation 27927. Up to 3592 conditions per place. [2020-02-10 22:46:20,573 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 70 selfloop transitions, 9 changer transitions 1/100 dead transitions. [2020-02-10 22:46:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:46:20,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:46:20,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:46:20,577 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:46:20,577 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:46:20,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:46:20,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:20,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:46:20,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:46:20,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:46:20,585 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:46:20,585 INFO L178 Difference]: Start difference. First operand has 100 places, 39 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:46:20,586 INFO L206 Difference]: Finished difference. Result has 121 places, 47 transitions [2020-02-10 22:46:20,586 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=313, PETRI_PLACES=121, PETRI_TRANSITIONS=47} [2020-02-10 22:46:20,587 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 47 transitions [2020-02-10 22:46:20,618 INFO L129 PetriNetUnfolder]: 0/200 cut-off events. [2020-02-10 22:46:20,618 INFO L130 PetriNetUnfolder]: For 265/265 co-relation queries the response was YES. [2020-02-10 22:46:20,621 INFO L76 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 200 events. 0/200 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1236 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 512. Up to 18 conditions per place. [2020-02-10 22:46:20,621 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 47 transitions [2020-02-10 22:46:20,625 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 47 transitions [2020-02-10 22:46:20,626 INFO L479 AbstractCegarLoop]: Abstraction has has 120 places, 47 transitions [2020-02-10 22:46:20,626 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:46:20,658 INFO L129 PetriNetUnfolder]: 0/183 cut-off events. [2020-02-10 22:46:20,658 INFO L130 PetriNetUnfolder]: For 265/265 co-relation queries the response was YES. [2020-02-10 22:46:20,658 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:20,659 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] [2020-02-10 22:46:20,659 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:20,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:20,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1114480502, now seen corresponding path program 3 times [2020-02-10 22:46:20,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:20,660 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932684868] [2020-02-10 22:46:20,660 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:21,268 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 35 [2020-02-10 22:46:21,417 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-02-10 22:46:21,425 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 22:46:21,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932684868] [2020-02-10 22:46:21,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:21,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:46:21,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144928006] [2020-02-10 22:46:21,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:46:21,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:21,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:46:21,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:46:21,429 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:46:21,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 47 transitions. Second operand 12 states. [2020-02-10 22:46:21,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:21,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:46:21,430 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:46:39,544 INFO L129 PetriNetUnfolder]: 9518/14509 cut-off events. [2020-02-10 22:46:39,544 INFO L130 PetriNetUnfolder]: For 29087/29263 co-relation queries the response was YES. [2020-02-10 22:46:39,662 INFO L76 FinitePrefix]: Finished finitePrefix Result has 47558 conditions, 14509 events. 9518/14509 cut-off events. For 29087/29263 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 94898 event pairs. 1/14251 useless extension candidates. Maximal degree in co-relation 47508. Up to 5648 conditions per place. [2020-02-10 22:46:39,864 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 88 selfloop transitions, 18 changer transitions 1/127 dead transitions. [2020-02-10 22:46:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:46:39,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:46:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:46:39,868 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:46:39,868 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:46:39,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:46:39,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:46:39,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:46:39,872 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:46:39,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:46:39,875 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:46:39,875 INFO L178 Difference]: Start difference. First operand has 120 places, 47 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:46:39,876 INFO L206 Difference]: Finished difference. Result has 141 places, 61 transitions [2020-02-10 22:46:39,876 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=511, PETRI_PLACES=141, PETRI_TRANSITIONS=61} [2020-02-10 22:46:39,876 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 141 places, 61 transitions [2020-02-10 22:46:39,999 INFO L129 PetriNetUnfolder]: 0/692 cut-off events. [2020-02-10 22:46:39,999 INFO L130 PetriNetUnfolder]: For 1298/1304 co-relation queries the response was YES. [2020-02-10 22:46:40,005 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1955 conditions, 692 events. 0/692 cut-off events. For 1298/1304 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7033 event pairs. 0/605 useless extension candidates. Maximal degree in co-relation 1895. Up to 65 conditions per place. [2020-02-10 22:46:40,005 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 61 transitions [2020-02-10 22:46:40,016 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 61 transitions [2020-02-10 22:46:40,016 INFO L479 AbstractCegarLoop]: Abstraction has has 140 places, 61 transitions [2020-02-10 22:46:40,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:46:40,106 INFO L129 PetriNetUnfolder]: 0/629 cut-off events. [2020-02-10 22:46:40,106 INFO L130 PetriNetUnfolder]: For 1298/1306 co-relation queries the response was YES. [2020-02-10 22:46:40,106 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:46:40,106 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] [2020-02-10 22:46:40,106 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:46:40,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:46:40,107 INFO L82 PathProgramCache]: Analyzing trace with hash 612450484, now seen corresponding path program 4 times [2020-02-10 22:46:40,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:46:40,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753515012] [2020-02-10 22:46:40,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:46:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:46:40,671 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 22:46:40,811 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-02-10 22:46:40,820 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 22:46:40,820 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753515012] [2020-02-10 22:46:40,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:46:40,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:46:40,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680509126] [2020-02-10 22:46:40,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:46:40,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:46:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:46:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:46:40,824 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:46:40,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 61 transitions. Second operand 12 states. [2020-02-10 22:46:40,825 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:46:40,825 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:46:40,825 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:47:24,629 INFO L129 PetriNetUnfolder]: 12404/20179 cut-off events. [2020-02-10 22:47:24,630 INFO L130 PetriNetUnfolder]: For 85475/86267 co-relation queries the response was YES. [2020-02-10 22:47:24,861 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82888 conditions, 20179 events. 12404/20179 cut-off events. For 85475/86267 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 153316 event pairs. 1/19876 useless extension candidates. Maximal degree in co-relation 82827. Up to 7862 conditions per place. [2020-02-10 22:47:25,205 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 113 selfloop transitions, 21 changer transitions 1/155 dead transitions. [2020-02-10 22:47:25,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:47:25,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:47:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:47:25,211 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:47:25,211 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:47:25,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:47:25,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:47:25,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:47:25,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:47:25,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:47:25,218 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:47:25,218 INFO L178 Difference]: Start difference. First operand has 140 places, 61 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:47:25,219 INFO L206 Difference]: Finished difference. Result has 161 places, 76 transitions [2020-02-10 22:47:25,219 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=761, PETRI_PLACES=161, PETRI_TRANSITIONS=76} [2020-02-10 22:47:25,220 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 161 places, 76 transitions [2020-02-10 22:47:25,539 INFO L129 PetriNetUnfolder]: 0/1282 cut-off events. [2020-02-10 22:47:25,540 INFO L130 PetriNetUnfolder]: For 3393/3408 co-relation queries the response was YES. [2020-02-10 22:47:25,553 INFO L76 FinitePrefix]: Finished finitePrefix Result has 3853 conditions, 1282 events. 0/1282 cut-off events. For 3393/3408 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 15488 event pairs. 0/1143 useless extension candidates. Maximal degree in co-relation 3782. Up to 116 conditions per place. [2020-02-10 22:47:25,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 76 transitions [2020-02-10 22:47:25,577 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 76 transitions [2020-02-10 22:47:25,577 INFO L479 AbstractCegarLoop]: Abstraction has has 160 places, 76 transitions [2020-02-10 22:47:25,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:47:25,826 INFO L129 PetriNetUnfolder]: 0/1169 cut-off events. [2020-02-10 22:47:25,826 INFO L130 PetriNetUnfolder]: For 3401/3418 co-relation queries the response was YES. [2020-02-10 22:47:25,826 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:47:25,826 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] [2020-02-10 22:47:25,826 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:47:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:47:25,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1942763300, now seen corresponding path program 5 times [2020-02-10 22:47:25,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:47:25,827 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032146809] [2020-02-10 22:47:25,827 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:47:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:47:26,367 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 22:47:26,520 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-02-10 22:47:26,529 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 22:47:26,530 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032146809] [2020-02-10 22:47:26,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:47:26,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:47:26,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445442454] [2020-02-10 22:47:26,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:47:26,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:47:26,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:47:26,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:47:26,533 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:47:26,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 76 transitions. Second operand 12 states. [2020-02-10 22:47:26,535 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:47:26,535 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:47:26,535 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:48:38,947 INFO L129 PetriNetUnfolder]: 14724/24183 cut-off events. [2020-02-10 22:48:38,947 INFO L130 PetriNetUnfolder]: For 178430/182621 co-relation queries the response was YES. [2020-02-10 22:48:39,280 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119431 conditions, 24183 events. 14724/24183 cut-off events. For 178430/182621 co-relation queries the response was YES. Maximal size of possible extension queue 1587. Compared 189819 event pairs. 6/23892 useless extension candidates. Maximal degree in co-relation 119359. Up to 9094 conditions per place. [2020-02-10 22:48:39,758 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 155 selfloop transitions, 15 changer transitions 1/191 dead transitions. [2020-02-10 22:48:39,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:48:39,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:48:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:48:39,762 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:48:39,762 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:48:39,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:48:39,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:48:39,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:48:39,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:48:39,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:48:39,767 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:48:39,767 INFO L178 Difference]: Start difference. First operand has 160 places, 76 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:48:39,768 INFO L206 Difference]: Finished difference. Result has 181 places, 89 transitions [2020-02-10 22:48:39,769 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1008, PETRI_PLACES=181, PETRI_TRANSITIONS=89} [2020-02-10 22:48:39,769 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 181 places, 89 transitions [2020-02-10 22:48:40,451 INFO L129 PetriNetUnfolder]: 0/1972 cut-off events. [2020-02-10 22:48:40,451 INFO L130 PetriNetUnfolder]: For 6963/6986 co-relation queries the response was YES. [2020-02-10 22:48:40,474 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 1972 events. 0/1972 cut-off events. For 6963/6986 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26495 event pairs. 1/1759 useless extension candidates. Maximal degree in co-relation 6194. Up to 182 conditions per place. [2020-02-10 22:48:40,474 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 89 transitions [2020-02-10 22:48:40,513 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 89 transitions [2020-02-10 22:48:40,513 INFO L479 AbstractCegarLoop]: Abstraction has has 180 places, 89 transitions [2020-02-10 22:48:40,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:48:40,992 INFO L129 PetriNetUnfolder]: 0/1793 cut-off events. [2020-02-10 22:48:40,992 INFO L130 PetriNetUnfolder]: For 6971/6994 co-relation queries the response was YES. [2020-02-10 22:48:40,992 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:48:40,993 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] [2020-02-10 22:48:40,993 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:48:40,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:48:40,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1994143756, now seen corresponding path program 6 times [2020-02-10 22:48:40,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:48:40,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606586743] [2020-02-10 22:48:40,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:48:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:48:41,824 WARN L192 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-02-10 22:48:41,961 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-02-10 22:48:41,970 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 22:48:41,971 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606586743] [2020-02-10 22:48:41,971 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:48:41,971 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:48:41,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069649100] [2020-02-10 22:48:41,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:48:41,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:48:41,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:48:41,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:48:41,973 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:48:41,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 89 transitions. Second operand 12 states. [2020-02-10 22:48:41,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:48:41,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:48:41,974 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:51:01,491 INFO L129 PetriNetUnfolder]: 18152/30846 cut-off events. [2020-02-10 22:51:01,491 INFO L130 PetriNetUnfolder]: For 307863/311805 co-relation queries the response was YES. [2020-02-10 22:51:02,012 INFO L76 FinitePrefix]: Finished finitePrefix Result has 165233 conditions, 30846 events. 18152/30846 cut-off events. For 307863/311805 co-relation queries the response was YES. Maximal size of possible extension queue 2191. Compared 266421 event pairs. 4/30548 useless extension candidates. Maximal degree in co-relation 165150. Up to 11350 conditions per place. [2020-02-10 22:51:02,750 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 236 selfloop transitions, 20 changer transitions 1/277 dead transitions. [2020-02-10 22:51:02,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:51:02,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:51:02,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:51:02,753 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:51:02,753 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:51:02,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:51:02,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:51:02,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:51:02,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:51:02,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:51:02,758 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:51:02,758 INFO L178 Difference]: Start difference. First operand has 180 places, 89 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:51:02,759 INFO L206 Difference]: Finished difference. Result has 201 places, 105 transitions [2020-02-10 22:51:02,759 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1366, PETRI_PLACES=201, PETRI_TRANSITIONS=105} [2020-02-10 22:51:02,759 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 201 places, 105 transitions [2020-02-10 22:51:05,476 INFO L129 PetriNetUnfolder]: 0/3580 cut-off events. [2020-02-10 22:51:05,476 INFO L130 PetriNetUnfolder]: For 16465/16534 co-relation queries the response was YES. [2020-02-10 22:51:05,524 INFO L76 FinitePrefix]: Finished finitePrefix Result has 12087 conditions, 3580 events. 0/3580 cut-off events. For 16465/16534 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 54432 event pairs. 3/3185 useless extension candidates. Maximal degree in co-relation 11994. Up to 361 conditions per place. [2020-02-10 22:51:05,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 105 transitions [2020-02-10 22:51:05,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 105 transitions [2020-02-10 22:51:05,605 INFO L479 AbstractCegarLoop]: Abstraction has has 200 places, 105 transitions [2020-02-10 22:51:05,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:51:06,933 INFO L129 PetriNetUnfolder]: 0/3222 cut-off events. [2020-02-10 22:51:06,933 INFO L130 PetriNetUnfolder]: For 16507/16584 co-relation queries the response was YES. [2020-02-10 22:51:06,933 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:51:06,933 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] [2020-02-10 22:51:06,933 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:51:06,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:51:06,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1302435298, now seen corresponding path program 7 times [2020-02-10 22:51:06,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:51:06,934 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948456499] [2020-02-10 22:51:06,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:51:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:51:07,475 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 33 [2020-02-10 22:51:07,604 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 22:51:07,605 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948456499] [2020-02-10 22:51:07,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:51:07,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:51:07,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951750249] [2020-02-10 22:51:07,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:51:07,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:51:07,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:51:07,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:51:07,612 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:51:07,613 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 105 transitions. Second operand 12 states. [2020-02-10 22:51:07,613 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:51:07,613 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:51:07,613 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 22:55:13,670 INFO L129 PetriNetUnfolder]: 21736/38722 cut-off events. [2020-02-10 22:55:13,670 INFO L130 PetriNetUnfolder]: For 454642/457214 co-relation queries the response was YES. [2020-02-10 22:55:14,402 INFO L76 FinitePrefix]: Finished finitePrefix Result has 218527 conditions, 38722 events. 21736/38722 cut-off events. For 454642/457214 co-relation queries the response was YES. Maximal size of possible extension queue 2786. Compared 361708 event pairs. 1/38312 useless extension candidates. Maximal degree in co-relation 218433. Up to 15804 conditions per place. [2020-02-10 22:55:15,439 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 177 selfloop transitions, 24 changer transitions 1/222 dead transitions. [2020-02-10 22:55:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:55:15,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 22:55:15,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 22:55:15,443 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 22:55:15,443 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 22:55:15,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 22:55:15,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 22:55:15,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 22:55:15,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 22:55:15,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 22:55:15,450 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 22:55:15,450 INFO L178 Difference]: Start difference. First operand has 200 places, 105 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 22:55:15,452 INFO L206 Difference]: Finished difference. Result has 221 places, 121 transitions [2020-02-10 22:55:15,452 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1740, PETRI_PLACES=221, PETRI_TRANSITIONS=121} [2020-02-10 22:55:15,452 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 221 places, 121 transitions [2020-02-10 22:55:19,444 INFO L129 PetriNetUnfolder]: 0/4874 cut-off events. [2020-02-10 22:55:19,444 INFO L130 PetriNetUnfolder]: For 28753/28886 co-relation queries the response was YES. [2020-02-10 22:55:19,500 INFO L76 FinitePrefix]: Finished finitePrefix Result has 17346 conditions, 4874 events. 0/4874 cut-off events. For 28753/28886 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 78600 event pairs. 15/4356 useless extension candidates. Maximal degree in co-relation 17242. Up to 483 conditions per place. [2020-02-10 22:55:19,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 121 transitions [2020-02-10 22:55:19,595 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 121 transitions [2020-02-10 22:55:19,595 INFO L479 AbstractCegarLoop]: Abstraction has has 220 places, 121 transitions [2020-02-10 22:55:19,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 22:55:22,207 INFO L129 PetriNetUnfolder]: 0/4394 cut-off events. [2020-02-10 22:55:22,208 INFO L130 PetriNetUnfolder]: For 28729/28855 co-relation queries the response was YES. [2020-02-10 22:55:22,208 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 22:55:22,208 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] [2020-02-10 22:55:22,208 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.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 22:55:22,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 22:55:22,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1637914096, now seen corresponding path program 8 times [2020-02-10 22:55:22,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 22:55:22,209 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748781622] [2020-02-10 22:55:22,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 22:55:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 22:55:22,966 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-02-10 22:55:22,974 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 22:55:22,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748781622] [2020-02-10 22:55:22,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 22:55:22,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 22:55:22,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104521149] [2020-02-10 22:55:22,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 22:55:22,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 22:55:22,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 22:55:22,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 22:55:22,979 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 22:55:22,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 121 transitions. Second operand 12 states. [2020-02-10 22:55:22,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 22:55:22,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 22:55:22,980 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2020-02-10 22:59:46,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 22:59:46,278 WARN L544 AbstractCegarLoop]: Verification canceled [2020-02-10 22:59:46,281 WARN L227 ceAbstractionStarter]: Timeout [2020-02-10 22:59:46,281 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 10:59:46 BasicIcfg [2020-02-10 22:59:46,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 22:59:46,283 INFO L168 Benchmark]: Toolchain (without parser) took 843046.75 ms. Allocated memory was 143.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 118.8 MB in the beginning and 1.0 GB in the end (delta: -895.9 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,284 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.44 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 143.7 MB. Free memory was 118.5 MB in the beginning and 116.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,285 INFO L168 Benchmark]: Boogie Preprocessor took 20.73 ms. Allocated memory is still 143.7 MB. Free memory was 116.7 MB in the beginning and 115.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,286 INFO L168 Benchmark]: RCFGBuilder took 394.69 ms. Allocated memory is still 143.7 MB. Free memory was 115.6 MB in the beginning and 100.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,286 INFO L168 Benchmark]: TraceAbstraction took 842590.82 ms. Allocated memory was 143.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 100.4 MB in the beginning and 1.0 GB in the end (delta: -914.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2020-02-10 22:59:46,290 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 0.44 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 34.91 ms. Allocated memory is still 143.7 MB. Free memory was 118.5 MB in the beginning and 116.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.73 ms. Allocated memory is still 143.7 MB. Free memory was 116.7 MB in the beginning and 115.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 394.69 ms. Allocated memory is still 143.7 MB. Free memory was 115.6 MB in the beginning and 100.8 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 842590.82 ms. Allocated memory was 143.7 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 100.4 MB in the beginning and 1.0 GB in the end (delta: -914.3 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 6.7s, 72 ProgramPointsBefore, 62 ProgramPointsAfterwards, 131 TransitionsBefore, 121 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 990 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1035 CheckedPairsTotal, 10 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 33). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (12states, 131/153 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 226448 conditions, 38771 events (21759/38770 cut-off events. For 526517/529467 co-relation queries the response was YES. Maximal size of possible extension queue 2792. Compared 364871 event pairs. 1/38569 useless extension candidates. Maximal degree in co-relation 226343. Up to 15711 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. Result: TIMEOUT, OverallTime: 842.2s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 803.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 10.2s, HoareTripleCheckerStatistics: 448 SDtfs, 478 SDslu, 432 SDs, 0 SdLazy, 854 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred 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: 11.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 7 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 241860 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