/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:30:34,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:30:34,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:30:34,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:30:34,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:30:34,479 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:30:34,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:30:34,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:30:34,488 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:30:34,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:30:34,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:30:34,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:30:34,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:30:34,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:30:34,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:30:34,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:30:34,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:30:34,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:30:34,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:30:34,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:30:34,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:30:34,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:30:34,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:30:34,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:30:34,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 13:30:34,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:30:34,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:30:34,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:30:34,531 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:30:34,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:30:34,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:30:34,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:30:34,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:30:34,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:30:34,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:30:34,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:30:34,534 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-VariableLbe.epf [2021-03-24 13:30:34,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:30:34,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:30:34,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:30:34,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:30:34,577 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:30:34,577 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:30:34,577 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:30:34,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:30:34,577 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:30:34,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:30:34,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:30:34,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:30:34,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:30:34,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:30:34,580 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:30:34,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:30:34,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:30:34,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:30:34,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:30:34,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:30:34,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:30:34,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:30:34,916 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 13:30:34,917 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 13:30:34,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2021-03-24 13:30:34,918 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2021-03-24 13:30:34,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:30:34,950 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 13:30:34,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:30:34,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:30:34,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:30:34,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:30:34,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:30:34,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:30:34,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:30:34,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... [2021-03-24 13:30:34,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:30:34,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:30:34,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:30:34,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:30:34,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:30:35,042 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-24 13:30:35,042 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-24 13:30:35,042 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-24 13:30:35,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-24 13:30:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-24 13:30:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-24 13:30:35,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-24 13:30:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-24 13:30:35,043 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-24 13:30:35,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-24 13:30:35,043 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-24 13:30:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-24 13:30:35,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-24 13:30:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-24 13:30:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-24 13:30:35,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-03-24 13:30:35,044 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-03-24 13:30:35,044 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-03-24 13:30:35,044 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-24 13:30:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:30:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:30:35,045 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-24 13:30:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-24 13:30:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-24 13:30:35,045 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-24 13:30:35,045 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-24 13:30:35,045 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-24 13:30:35,046 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-24 13:30:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-24 13:30:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-24 13:30:35,046 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-03-24 13:30:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-03-24 13:30:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-03-24 13:30:35,047 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 13:30:35,223 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:30:35,224 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 13:30:35,225 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:30:35 BoogieIcfgContainer [2021-03-24 13:30:35,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:30:35,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:30:35,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:30:35,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:30:35,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:34" (1/2) ... [2021-03-24 13:30:35,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2cc87d and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:30:35, skipping insertion in model container [2021-03-24 13:30:35,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:30:35" (2/2) ... [2021-03-24 13:30:35,231 INFO L111 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2021-03-24 13:30:35,251 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:30:35,255 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:30:35,255 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:30:35,464 INFO L149 ThreadInstanceAdder]: Constructed 100 joinOtherThreadTransitions. [2021-03-24 13:30:35,479 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-03-24 13:30:35,497 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:30:35,497 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:30:35,497 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:30:35,497 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:30:35,497 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:30:35,497 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:30:35,497 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:30:35,497 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:30:35,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions, 636 flow [2021-03-24 13:30:36,178 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2021-03-24 13:30:36,179 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-24 13:30:36,199 INFO L84 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 20936 event pairs, 0 based on Foata normal form. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-03-24 13:30:36,200 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 143 transitions, 636 flow [2021-03-24 13:30:36,265 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 131 transitions, 592 flow [2021-03-24 13:30:36,267 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:30:36,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 131 transitions, 592 flow [2021-03-24 13:30:36,277 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 131 transitions, 592 flow [2021-03-24 13:30:36,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions, 592 flow [2021-03-24 13:30:36,666 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2021-03-24 13:30:36,667 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-24 13:30:36,680 INFO L84 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 20104 event pairs, 0 based on Foata normal form. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-03-24 13:30:36,768 INFO L142 LiptonReduction]: Number of co-enabled transitions 3780 [2021-03-24 13:30:36,939 INFO L154 LiptonReduction]: Checked pairs total: 1035 [2021-03-24 13:30:36,940 INFO L156 LiptonReduction]: Total number of compositions: 10 [2021-03-24 13:30:36,942 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 676 [2021-03-24 13:30:37,274 INFO L129 PetriNetUnfolder]: 4097/5140 cut-off events. [2021-03-24 13:30:37,274 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-03-24 13:30:37,274 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:37,280 INFO L263 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] [2021-03-24 13:30:37,280 INFO L428 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]=== [2021-03-24 13:30:37,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:37,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1999905854, now seen corresponding path program 1 times [2021-03-24 13:30:37,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:37,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070806258] [2021-03-24 13:30:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:37,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:37,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:37,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:37,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:37,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:37,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:37,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:37,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:37,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070806258] [2021-03-24 13:30:37,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:37,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:37,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964607175] [2021-03-24 13:30:37,467 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:37,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:37,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:37,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:37,482 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:37,487 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 121 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:37,487 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:37,487 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:37,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:37,919 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2021-03-24 13:30:37,919 INFO L130 PetriNetUnfolder]: For 5812/5812 co-relation queries the response was YES. [2021-03-24 13:30:37,933 INFO L84 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 21506 event pairs, 0 based on Foata normal form. 46/4808 useless extension candidates. Maximal degree in co-relation 4719. Up to 1260 conditions per place. [2021-03-24 13:30:37,965 INFO L132 encePairwiseOnDemand]: 149/153 looper letters, 7 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2021-03-24 13:30:37,965 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 573 flow [2021-03-24 13:30:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:37,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:37,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:37,982 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:37,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:37,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:37,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:37,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:37,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,003 INFO L185 Difference]: Start difference. First operand has 62 places, 121 transitions, 572 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 573 flow [2021-03-24 13:30:38,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 118 transitions, 359 flow, removed 0 selfloop flow, removed 20 redundant places. [2021-03-24 13:30:38,065 INFO L241 Difference]: Finished difference. Result has 44 places, 118 transitions, 345 flow [2021-03-24 13:30:38,066 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=42, 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=345, PETRI_PLACES=44, PETRI_TRANSITIONS=118} [2021-03-24 13:30:38,068 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -18 predicate places. [2021-03-24 13:30:38,068 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 118 transitions, 345 flow [2021-03-24 13:30:38,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,069 INFO L263 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] [2021-03-24 13:30:38,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 13:30:38,069 INFO L428 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]=== [2021-03-24 13:30:38,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,070 INFO L82 PathProgramCache]: Analyzing trace with hash 229487364, now seen corresponding path program 1 times [2021-03-24 13:30:38,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997512824] [2021-03-24 13:30:38,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997512824] [2021-03-24 13:30:38,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80930955] [2021-03-24 13:30:38,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,132 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,133 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 118 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,133 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,133 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,331 INFO L129 PetriNetUnfolder]: 3028/3905 cut-off events. [2021-03-24 13:30:38,331 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2021-03-24 13:30:38,338 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4302 conditions, 3905 events. 3028/3905 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 18284 event pairs, 0 based on Foata normal form. 93/3998 useless extension candidates. Maximal degree in co-relation 4290. Up to 1260 conditions per place. [2021-03-24 13:30:38,357 INFO L132 encePairwiseOnDemand]: 148/153 looper letters, 6 selfloop transitions, 1 changer transitions 0/114 dead transitions. [2021-03-24 13:30:38,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 114 transitions, 347 flow [2021-03-24 13:30:38,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:38,359 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:38,359 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,363 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,363 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,363 INFO L185 Difference]: Start difference. First operand has 44 places, 118 transitions, 345 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 114 transitions, 347 flow [2021-03-24 13:30:38,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 114 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,367 INFO L241 Difference]: Finished difference. Result has 45 places, 114 transitions, 334 flow [2021-03-24 13:30:38,367 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=45, PETRI_TRANSITIONS=114} [2021-03-24 13:30:38,368 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -17 predicate places. [2021-03-24 13:30:38,368 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 114 transitions, 334 flow [2021-03-24 13:30:38,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,368 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,368 INFO L263 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] [2021-03-24 13:30:38,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 13:30:38,369 INFO L428 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]=== [2021-03-24 13:30:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,369 INFO L82 PathProgramCache]: Analyzing trace with hash -39454286, now seen corresponding path program 1 times [2021-03-24 13:30:38,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47524757] [2021-03-24 13:30:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,410 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47524757] [2021-03-24 13:30:38,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958668311] [2021-03-24 13:30:38,418 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,420 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 114 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,420 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,420 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,420 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,515 INFO L129 PetriNetUnfolder]: 1208/1664 cut-off events. [2021-03-24 13:30:38,515 INFO L130 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2021-03-24 13:30:38,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1726 conditions, 1664 events. 1208/1664 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7599 event pairs, 0 based on Foata normal form. 344/2008 useless extension candidates. Maximal degree in co-relation 1714. Up to 504 conditions per place. [2021-03-24 13:30:38,525 INFO L132 encePairwiseOnDemand]: 145/153 looper letters, 3 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2021-03-24 13:30:38,525 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 107 transitions, 321 flow [2021-03-24 13:30:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:38,528 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:38,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,529 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,531 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,531 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,531 INFO L185 Difference]: Start difference. First operand has 45 places, 114 transitions, 334 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 107 transitions, 321 flow [2021-03-24 13:30:38,533 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 107 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,536 INFO L241 Difference]: Finished difference. Result has 46 places, 107 transitions, 314 flow [2021-03-24 13:30:38,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=46, PETRI_TRANSITIONS=107} [2021-03-24 13:30:38,536 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2021-03-24 13:30:38,536 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 107 transitions, 314 flow [2021-03-24 13:30:38,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,537 INFO L263 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] [2021-03-24 13:30:38,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 13:30:38,537 INFO L428 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]=== [2021-03-24 13:30:38,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1212135468, now seen corresponding path program 1 times [2021-03-24 13:30:38,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025449944] [2021-03-24 13:30:38,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,564 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025449944] [2021-03-24 13:30:38,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256789505] [2021-03-24 13:30:38,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,572 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,572 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 107 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,573 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,573 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,624 INFO L129 PetriNetUnfolder]: 524/797 cut-off events. [2021-03-24 13:30:38,624 INFO L130 PetriNetUnfolder]: For 179/179 co-relation queries the response was YES. [2021-03-24 13:30:38,625 INFO L84 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 797 events. 524/797 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3373 event pairs, 0 based on Foata normal form. 133/930 useless extension candidates. Maximal degree in co-relation 848. Up to 168 conditions per place. [2021-03-24 13:30:38,628 INFO L132 encePairwiseOnDemand]: 146/153 looper letters, 4 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2021-03-24 13:30:38,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 101 transitions, 306 flow [2021-03-24 13:30:38,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:38,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:38,631 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,638 INFO L185 Difference]: Start difference. First operand has 46 places, 107 transitions, 314 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 101 transitions, 306 flow [2021-03-24 13:30:38,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 101 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,642 INFO L241 Difference]: Finished difference. Result has 47 places, 101 transitions, 297 flow [2021-03-24 13:30:38,643 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=47, PETRI_TRANSITIONS=101} [2021-03-24 13:30:38,643 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -15 predicate places. [2021-03-24 13:30:38,643 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 101 transitions, 297 flow [2021-03-24 13:30:38,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,643 INFO L263 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] [2021-03-24 13:30:38,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 13:30:38,644 INFO L428 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]=== [2021-03-24 13:30:38,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,644 INFO L82 PathProgramCache]: Analyzing trace with hash 318375666, now seen corresponding path program 1 times [2021-03-24 13:30:38,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904917790] [2021-03-24 13:30:38,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904917790] [2021-03-24 13:30:38,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884824511] [2021-03-24 13:30:38,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,688 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 101 transitions, 297 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,741 INFO L129 PetriNetUnfolder]: 499/766 cut-off events. [2021-03-24 13:30:38,741 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-03-24 13:30:38,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 766 events. 499/766 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3367 event pairs, 0 based on Foata normal form. 6/772 useless extension candidates. Maximal degree in co-relation 852. Up to 168 conditions per place. [2021-03-24 13:30:38,745 INFO L132 encePairwiseOnDemand]: 150/153 looper letters, 8 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2021-03-24 13:30:38,745 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 99 transitions, 309 flow [2021-03-24 13:30:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:38,748 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:38,748 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,748 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,748 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,751 INFO L185 Difference]: Start difference. First operand has 47 places, 101 transitions, 297 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 99 transitions, 309 flow [2021-03-24 13:30:38,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 99 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,754 INFO L241 Difference]: Finished difference. Result has 48 places, 99 transitions, 292 flow [2021-03-24 13:30:38,755 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=46, 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=292, PETRI_PLACES=48, PETRI_TRANSITIONS=99} [2021-03-24 13:30:38,755 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -14 predicate places. [2021-03-24 13:30:38,755 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 99 transitions, 292 flow [2021-03-24 13:30:38,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,755 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,755 INFO L263 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] [2021-03-24 13:30:38,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 13:30:38,756 INFO L428 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]=== [2021-03-24 13:30:38,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1259935062, now seen corresponding path program 1 times [2021-03-24 13:30:38,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684387715] [2021-03-24 13:30:38,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684387715] [2021-03-24 13:30:38,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551644211] [2021-03-24 13:30:38,795 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,797 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 99 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,828 INFO L129 PetriNetUnfolder]: 109/212 cut-off events. [2021-03-24 13:30:38,828 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-03-24 13:30:38,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 212 events. 109/212 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 766 event pairs, 0 based on Foata normal form. 81/293 useless extension candidates. Maximal degree in co-relation 222. Up to 45 conditions per place. [2021-03-24 13:30:38,830 INFO L132 encePairwiseOnDemand]: 143/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2021-03-24 13:30:38,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 242 flow [2021-03-24 13:30:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-03-24 13:30:38,832 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-03-24 13:30:38,832 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,832 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-03-24 13:30:38,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,835 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,835 INFO L185 Difference]: Start difference. First operand has 48 places, 99 transitions, 292 flow. Second operand 3 states and 437 transitions. [2021-03-24 13:30:38,835 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 242 flow [2021-03-24 13:30:38,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,837 INFO L241 Difference]: Finished difference. Result has 49 places, 81 transitions, 239 flow [2021-03-24 13:30:38,837 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=49, PETRI_TRANSITIONS=81} [2021-03-24 13:30:38,838 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -13 predicate places. [2021-03-24 13:30:38,838 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 81 transitions, 239 flow [2021-03-24 13:30:38,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,838 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,838 INFO L263 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] [2021-03-24 13:30:38,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 13:30:38,838 INFO L428 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]=== [2021-03-24 13:30:38,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1291197958, now seen corresponding path program 1 times [2021-03-24 13:30:38,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188362447] [2021-03-24 13:30:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,857 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188362447] [2021-03-24 13:30:38,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,862 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120494210] [2021-03-24 13:30:38,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 81 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,878 INFO L129 PetriNetUnfolder]: 17/64 cut-off events. [2021-03-24 13:30:38,878 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-03-24 13:30:38,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 64 events. 17/64 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 24/88 useless extension candidates. Maximal degree in co-relation 75. Up to 10 conditions per place. [2021-03-24 13:30:38,879 INFO L132 encePairwiseOnDemand]: 144/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2021-03-24 13:30:38,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 156 flow [2021-03-24 13:30:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2021-03-24 13:30:38,881 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9498910675381264 [2021-03-24 13:30:38,881 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2021-03-24 13:30:38,881 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2021-03-24 13:30:38,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,881 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2021-03-24 13:30:38,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,885 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,885 INFO L185 Difference]: Start difference. First operand has 49 places, 81 transitions, 239 flow. Second operand 3 states and 436 transitions. [2021-03-24 13:30:38,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 156 flow [2021-03-24 13:30:38,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,886 INFO L241 Difference]: Finished difference. Result has 50 places, 52 transitions, 153 flow [2021-03-24 13:30:38,887 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2021-03-24 13:30:38,887 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -12 predicate places. [2021-03-24 13:30:38,887 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 153 flow [2021-03-24 13:30:38,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,887 INFO L263 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] [2021-03-24 13:30:38,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 13:30:38,888 INFO L428 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]=== [2021-03-24 13:30:38,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,888 INFO L82 PathProgramCache]: Analyzing trace with hash 937811846, now seen corresponding path program 1 times [2021-03-24 13:30:38,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806609980] [2021-03-24 13:30:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:38,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,919 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:30:38,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:38,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:38,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806609980] [2021-03-24 13:30:38,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:38,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:30:38,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996644175] [2021-03-24 13:30:38,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:30:38,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:38,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:30:38,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:30:38,926 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:30:38,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:38,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:30:38,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:38,936 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-03-24 13:30:38,937 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-03-24 13:30:38,937 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 33 events. 1/33 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 6/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2021-03-24 13:30:38,937 INFO L132 encePairwiseOnDemand]: 147/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2021-03-24 13:30:38,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 33 transitions, 100 flow [2021-03-24 13:30:38,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:30:38,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:30:38,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-03-24 13:30:38,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9433551198257081 [2021-03-24 13:30:38,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-03-24 13:30:38,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-03-24 13:30:38,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:38,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-03-24 13:30:38,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,941 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,941 INFO L185 Difference]: Start difference. First operand has 50 places, 52 transitions, 153 flow. Second operand 3 states and 433 transitions. [2021-03-24 13:30:38,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 33 transitions, 100 flow [2021-03-24 13:30:38,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 33 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:38,943 INFO L241 Difference]: Finished difference. Result has 51 places, 33 transitions, 97 flow [2021-03-24 13:30:38,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=51, PETRI_TRANSITIONS=33} [2021-03-24 13:30:38,944 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places. [2021-03-24 13:30:38,944 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 33 transitions, 97 flow [2021-03-24 13:30:38,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:38,944 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:38,944 INFO L263 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] [2021-03-24 13:30:38,944 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 13:30:38,945 INFO L428 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]=== [2021-03-24 13:30:38,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:38,945 INFO L82 PathProgramCache]: Analyzing trace with hash -300766876, now seen corresponding path program 1 times [2021-03-24 13:30:38,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:38,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580387304] [2021-03-24 13:30:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:39,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:39,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:39,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:39,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:39,076 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:30:39,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:30:39,103 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:30:39,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:30:39,142 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:30:39,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:30:39,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:30:39,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:30:39,256 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:30:39,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:30:39,316 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-24 13:30:39,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 13:30:39,370 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-24 13:30:39,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 13:30:39,429 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 13:30:39,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 13:30:39,502 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:39,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:39,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580387304] [2021-03-24 13:30:39,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:39,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:39,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837908095] [2021-03-24 13:30:39,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:39,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:39,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:39,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:39,619 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:39,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 33 transitions, 97 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:39,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:39,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:39,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:40,126 INFO L129 PetriNetUnfolder]: 5451/7502 cut-off events. [2021-03-24 13:30:40,126 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:30:40,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14445 conditions, 7502 events. 5451/7502 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 41588 event pairs, 1793 based on Foata normal form. 1/7250 useless extension candidates. Maximal degree in co-relation 14435. Up to 2561 conditions per place. [2021-03-24 13:30:40,191 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 54 selfloop transitions, 10 changer transitions 0/86 dead transitions. [2021-03-24 13:30:40,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 331 flow [2021-03-24 13:30:40,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:30:40,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:30:40,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:30:40,195 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:30:40,195 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:30:40,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:30:40,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:40,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:30:40,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:40,201 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:40,202 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:40,202 INFO L185 Difference]: Start difference. First operand has 51 places, 33 transitions, 97 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:30:40,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 331 flow [2021-03-24 13:30:40,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:40,204 INFO L241 Difference]: Finished difference. Result has 71 places, 42 transitions, 173 flow [2021-03-24 13:30:40,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=173, PETRI_PLACES=71, PETRI_TRANSITIONS=42} [2021-03-24 13:30:40,205 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2021-03-24 13:30:40,205 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 173 flow [2021-03-24 13:30:40,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:40,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:40,206 INFO L263 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] [2021-03-24 13:30:40,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 13:30:40,206 INFO L428 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]=== [2021-03-24 13:30:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:40,206 INFO L82 PathProgramCache]: Analyzing trace with hash -2005207858, now seen corresponding path program 2 times [2021-03-24 13:30:40,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:40,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778023265] [2021-03-24 13:30:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:40,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:40,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:40,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:40,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:40,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:40,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:30:40,255 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:30:40,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:30:40,273 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:30:40,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:30:40,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:30:40,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:30:40,321 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:30:40,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:30:40,352 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:30:40,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:30:40,399 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 13:30:40,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 13:30:40,450 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:30:40,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:30:40,502 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:40,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:40,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:40,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778023265] [2021-03-24 13:30:40,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:40,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:40,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446951629] [2021-03-24 13:30:40,549 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:40,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:40,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:40,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:40,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:40,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 173 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:40,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:40,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:40,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:41,528 INFO L129 PetriNetUnfolder]: 7397/11813 cut-off events. [2021-03-24 13:30:41,528 INFO L130 PetriNetUnfolder]: For 11652/11673 co-relation queries the response was YES. [2021-03-24 13:30:41,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31216 conditions, 11813 events. 7397/11813 cut-off events. For 11652/11673 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 83482 event pairs, 2307 based on Foata normal form. 1/11559 useless extension candidates. Maximal degree in co-relation 31196. Up to 3497 conditions per place. [2021-03-24 13:30:41,651 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 78 selfloop transitions, 17 changer transitions 0/117 dead transitions. [2021-03-24 13:30:41,651 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 117 transitions, 716 flow [2021-03-24 13:30:41,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:30:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:30:41,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:30:41,655 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:30:41,655 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:30:41,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:30:41,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:41,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:30:41,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:41,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:41,663 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:41,663 INFO L185 Difference]: Start difference. First operand has 71 places, 42 transitions, 173 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:30:41,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 117 transitions, 716 flow [2021-03-24 13:30:41,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 117 transitions, 706 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:41,671 INFO L241 Difference]: Finished difference. Result has 91 places, 57 transitions, 342 flow [2021-03-24 13:30:41,672 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=342, PETRI_PLACES=91, PETRI_TRANSITIONS=57} [2021-03-24 13:30:41,672 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2021-03-24 13:30:41,672 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 57 transitions, 342 flow [2021-03-24 13:30:41,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:41,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:41,674 INFO L263 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] [2021-03-24 13:30:41,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 13:30:41,674 INFO L428 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]=== [2021-03-24 13:30:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:41,674 INFO L82 PathProgramCache]: Analyzing trace with hash -629502388, now seen corresponding path program 3 times [2021-03-24 13:30:41,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:41,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229065420] [2021-03-24 13:30:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:41,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:41,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:41,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:41,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:41,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:41,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:30:41,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:30:41,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:30:41,778 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:30:41,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:30:41,797 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:30:41,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:30:41,819 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:30:41,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:30:41,850 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:30:41,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:30:41,884 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:30:41,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:30:41,930 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 13:30:41,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 13:30:41,982 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:41,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:42,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229065420] [2021-03-24 13:30:42,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:42,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:42,030 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907975663] [2021-03-24 13:30:42,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:42,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:42,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:42,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:42,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:42,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 57 transitions, 342 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:42,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:42,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:42,034 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:43,470 INFO L129 PetriNetUnfolder]: 9902/16979 cut-off events. [2021-03-24 13:30:43,470 INFO L130 PetriNetUnfolder]: For 44887/45655 co-relation queries the response was YES. [2021-03-24 13:30:43,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57174 conditions, 16979 events. 9902/16979 cut-off events. For 44887/45655 co-relation queries the response was YES. Maximal size of possible extension queue 1442. Compared 140887 event pairs, 2941 based on Foata normal form. 1/16716 useless extension candidates. Maximal degree in co-relation 57144. Up to 4901 conditions per place. [2021-03-24 13:30:43,700 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 102 selfloop transitions, 31 changer transitions 0/155 dead transitions. [2021-03-24 13:30:43,700 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 155 transitions, 1313 flow [2021-03-24 13:30:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:30:43,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:30:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:30:43,704 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:30:43,704 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:30:43,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:30:43,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:43,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:30:43,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:43,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:43,711 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:43,711 INFO L185 Difference]: Start difference. First operand has 91 places, 57 transitions, 342 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:30:43,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 155 transitions, 1313 flow [2021-03-24 13:30:43,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 155 transitions, 1292 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:43,802 INFO L241 Difference]: Finished difference. Result has 111 places, 85 transitions, 731 flow [2021-03-24 13:30:43,802 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=731, PETRI_PLACES=111, PETRI_TRANSITIONS=85} [2021-03-24 13:30:43,803 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 49 predicate places. [2021-03-24 13:30:43,803 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 85 transitions, 731 flow [2021-03-24 13:30:43,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:43,803 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:43,804 INFO L263 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] [2021-03-24 13:30:43,804 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 13:30:43,804 INFO L428 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]=== [2021-03-24 13:30:43,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:43,804 INFO L82 PathProgramCache]: Analyzing trace with hash -263008046, now seen corresponding path program 4 times [2021-03-24 13:30:43,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:43,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715318973] [2021-03-24 13:30:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:43,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:43,854 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:43,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:43,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:43,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:43,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:43,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:30:43,869 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:30:43,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:30:43,883 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:30:43,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:30:43,904 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:30:43,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:30:43,928 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:30:43,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:30:43,961 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:30:43,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:30:44,001 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-24 13:30:44,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 13:30:44,047 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:30:44,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:30:44,098 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:44,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:44,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:44,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715318973] [2021-03-24 13:30:44,156 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:44,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:44,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700970784] [2021-03-24 13:30:44,157 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:44,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:44,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:44,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:44,159 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:44,161 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 85 transitions, 731 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:44,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:44,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:44,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:46,468 INFO L129 PetriNetUnfolder]: 13302/24253 cut-off events. [2021-03-24 13:30:46,469 INFO L130 PetriNetUnfolder]: For 120897/122063 co-relation queries the response was YES. [2021-03-24 13:30:46,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98494 conditions, 24253 events. 13302/24253 cut-off events. For 120897/122063 co-relation queries the response was YES. Maximal size of possible extension queue 2266. Compared 229626 event pairs, 3901 based on Foata normal form. 1/23944 useless extension candidates. Maximal degree in co-relation 98454. Up to 6916 conditions per place. [2021-03-24 13:30:46,889 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 145 selfloop transitions, 57 changer transitions 0/224 dead transitions. [2021-03-24 13:30:46,889 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 224 transitions, 2538 flow [2021-03-24 13:30:46,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:30:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:30:46,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:30:46,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:30:46,893 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:30:46,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:30:46,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:46,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:30:46,896 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:46,899 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:46,899 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:46,900 INFO L185 Difference]: Start difference. First operand has 111 places, 85 transitions, 731 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:30:46,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 224 transitions, 2538 flow [2021-03-24 13:30:47,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 224 transitions, 2516 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:47,533 INFO L241 Difference]: Finished difference. Result has 131 places, 137 transitions, 1611 flow [2021-03-24 13:30:47,534 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1611, PETRI_PLACES=131, PETRI_TRANSITIONS=137} [2021-03-24 13:30:47,534 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 69 predicate places. [2021-03-24 13:30:47,534 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 137 transitions, 1611 flow [2021-03-24 13:30:47,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:47,535 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:47,535 INFO L263 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] [2021-03-24 13:30:47,535 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 13:30:47,535 INFO L428 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]=== [2021-03-24 13:30:47,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:47,535 INFO L82 PathProgramCache]: Analyzing trace with hash -277337024, now seen corresponding path program 5 times [2021-03-24 13:30:47,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:47,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967006768] [2021-03-24 13:30:47,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:47,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:47,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:47,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:47,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:47,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:47,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:30:47,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:47,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:30:47,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:30:47,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:30:47,630 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:30:47,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:30:47,653 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:30:47,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:30:47,682 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:30:47,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:30:47,723 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:30:47,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:30:47,991 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:30:47,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:30:48,046 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:48,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:48,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:48,091 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967006768] [2021-03-24 13:30:48,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:48,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:48,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825851049] [2021-03-24 13:30:48,091 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:48,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:48,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:48,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:48,093 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:48,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 137 transitions, 1611 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:48,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:48,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:48,095 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:30:52,651 INFO L129 PetriNetUnfolder]: 18649/35955 cut-off events. [2021-03-24 13:30:52,651 INFO L130 PetriNetUnfolder]: For 286452/289473 co-relation queries the response was YES. [2021-03-24 13:30:53,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171957 conditions, 35955 events. 18649/35955 cut-off events. For 286452/289473 co-relation queries the response was YES. Maximal size of possible extension queue 3379. Compared 379596 event pairs, 4803 based on Foata normal form. 1/35424 useless extension candidates. Maximal degree in co-relation 171907. Up to 10541 conditions per place. [2021-03-24 13:30:53,279 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 225 selfloop transitions, 69 changer transitions 0/316 dead transitions. [2021-03-24 13:30:53,280 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 316 transitions, 4420 flow [2021-03-24 13:30:53,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:30:53,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:30:53,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:30:53,284 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:30:53,285 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:30:53,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:30:53,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:30:53,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:30:53,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:53,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:53,292 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:53,292 INFO L185 Difference]: Start difference. First operand has 131 places, 137 transitions, 1611 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:30:53,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 316 transitions, 4420 flow [2021-03-24 13:30:54,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 316 transitions, 4394 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-03-24 13:30:54,088 INFO L241 Difference]: Finished difference. Result has 151 places, 181 transitions, 2506 flow [2021-03-24 13:30:54,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2506, PETRI_PLACES=151, PETRI_TRANSITIONS=181} [2021-03-24 13:30:54,088 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 89 predicate places. [2021-03-24 13:30:54,088 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 181 transitions, 2506 flow [2021-03-24 13:30:54,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:54,089 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:30:54,089 INFO L263 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] [2021-03-24 13:30:54,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 13:30:54,089 INFO L428 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]=== [2021-03-24 13:30:54,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:30:54,090 INFO L82 PathProgramCache]: Analyzing trace with hash -192685538, now seen corresponding path program 6 times [2021-03-24 13:30:54,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:30:54,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923974519] [2021-03-24 13:30:54,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:30:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:30:54,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:54,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:30:54,122 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:54,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:30:54,126 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:54,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:30:54,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:30:54,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:30:54,146 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:30:54,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:30:54,162 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:30:54,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:30:54,183 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:30:54,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:30:54,212 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:30:54,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:30:54,249 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:30:54,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:30:54,298 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:30:54,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:30:54,346 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:30:54,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:30:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:30:54,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923974519] [2021-03-24 13:30:54,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:30:54,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:30:54,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453086338] [2021-03-24 13:30:54,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:30:54,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:30:54,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:30:54,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:30:54,403 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:30:54,411 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 181 transitions, 2506 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:30:54,411 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:30:54,411 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:30:54,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:31:01,725 INFO L129 PetriNetUnfolder]: 24049/48586 cut-off events. [2021-03-24 13:31:01,726 INFO L130 PetriNetUnfolder]: For 547455/554333 co-relation queries the response was YES. [2021-03-24 13:31:02,527 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260790 conditions, 48586 events. 24049/48586 cut-off events. For 547455/554333 co-relation queries the response was YES. Maximal size of possible extension queue 4572. Compared 558582 event pairs, 7450 based on Foata normal form. 1/47711 useless extension candidates. Maximal degree in co-relation 260730. Up to 13995 conditions per place. [2021-03-24 13:31:02,751 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 236 selfloop transitions, 94 changer transitions 0/352 dead transitions. [2021-03-24 13:31:02,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 352 transitions, 5566 flow [2021-03-24 13:31:02,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:31:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:31:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:31:02,755 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:31:02,755 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:31:02,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:31:02,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:31:02,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:31:02,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:02,761 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:02,761 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:02,761 INFO L185 Difference]: Start difference. First operand has 151 places, 181 transitions, 2506 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:31:02,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 352 transitions, 5566 flow [2021-03-24 13:31:04,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 352 transitions, 5392 flow, removed 71 selfloop flow, removed 1 redundant places. [2021-03-24 13:31:04,481 INFO L241 Difference]: Finished difference. Result has 171 places, 230 transitions, 3548 flow [2021-03-24 13:31:04,481 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=2404, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3548, PETRI_PLACES=171, PETRI_TRANSITIONS=230} [2021-03-24 13:31:04,481 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 109 predicate places. [2021-03-24 13:31:04,482 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 230 transitions, 3548 flow [2021-03-24 13:31:04,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:04,482 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:31:04,482 INFO L263 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] [2021-03-24 13:31:04,482 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 13:31:04,482 INFO L428 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]=== [2021-03-24 13:31:04,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:31:04,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1030058894, now seen corresponding path program 7 times [2021-03-24 13:31:04,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:31:04,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232327189] [2021-03-24 13:31:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:31:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:31:04,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:04,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:31:04,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:04,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:31:04,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:04,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:31:04,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:04,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:31:04,534 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:31:04,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:31:04,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:31:04,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:31:04,573 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:31:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:31:04,601 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-24 13:31:04,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 13:31:04,652 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 13:31:04,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 13:31:04,723 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:31:04,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:31:04,767 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:31:04,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:31:04,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:31:04,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232327189] [2021-03-24 13:31:04,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:31:04,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:31:04,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904763856] [2021-03-24 13:31:04,807 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:31:04,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:31:04,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:31:04,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:31:04,810 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:31:04,811 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 230 transitions, 3548 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:04,811 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:31:04,811 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:31:04,811 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:31:18,018 INFO L129 PetriNetUnfolder]: 32623/69447 cut-off events. [2021-03-24 13:31:18,019 INFO L130 PetriNetUnfolder]: For 1024256/1037782 co-relation queries the response was YES. [2021-03-24 13:31:19,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405011 conditions, 69447 events. 32623/69447 cut-off events. For 1024256/1037782 co-relation queries the response was YES. Maximal size of possible extension queue 7000. Compared 868704 event pairs, 16526 based on Foata normal form. 1/68369 useless extension candidates. Maximal degree in co-relation 404941. Up to 20004 conditions per place. [2021-03-24 13:31:19,644 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 332 selfloop transitions, 122 changer transitions 0/476 dead transitions. [2021-03-24 13:31:19,644 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 476 transitions, 8553 flow [2021-03-24 13:31:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:31:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:31:19,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:31:19,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:31:19,649 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:31:19,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:31:19,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:31:19,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:31:19,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:19,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:19,656 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:19,656 INFO L185 Difference]: Start difference. First operand has 171 places, 230 transitions, 3548 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:31:19,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 476 transitions, 8553 flow [2021-03-24 13:31:23,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 476 transitions, 8350 flow, removed 82 selfloop flow, removed 1 redundant places. [2021-03-24 13:31:23,967 INFO L241 Difference]: Finished difference. Result has 191 places, 320 transitions, 5656 flow [2021-03-24 13:31:23,967 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5656, PETRI_PLACES=191, PETRI_TRANSITIONS=320} [2021-03-24 13:31:23,968 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 129 predicate places. [2021-03-24 13:31:23,968 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 320 transitions, 5656 flow [2021-03-24 13:31:23,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:23,968 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:31:23,968 INFO L263 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] [2021-03-24 13:31:23,968 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 13:31:23,968 INFO L428 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]=== [2021-03-24 13:31:23,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:31:23,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1542497040, now seen corresponding path program 8 times [2021-03-24 13:31:23,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:31:23,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65730793] [2021-03-24 13:31:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:31:23,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:31:23,997 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:23,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:31:23,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:23,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:31:24,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:31:24,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:31:24,009 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-24 13:31:24,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 13:31:24,021 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 13:31:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 13:31:24,038 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:31:24,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:31:24,058 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:31:24,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:31:24,082 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:31:24,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:31:24,120 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:31:24,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:31:24,165 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:31:24,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:31:24,210 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:31:24,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:31:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:31:24,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65730793] [2021-03-24 13:31:24,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:31:24,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:31:24,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593253610] [2021-03-24 13:31:24,255 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:31:24,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:31:24,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:31:24,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:31:24,258 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:31:24,258 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 320 transitions, 5656 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:24,259 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:31:24,259 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:31:24,259 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:31:53,959 INFO L129 PetriNetUnfolder]: 46496/117392 cut-off events. [2021-03-24 13:31:53,960 INFO L130 PetriNetUnfolder]: For 1876882/1915504 co-relation queries the response was YES. [2021-03-24 13:31:56,155 INFO L84 FinitePrefix]: Finished finitePrefix Result has 653171 conditions, 117392 events. 46496/117392 cut-off events. For 1876882/1915504 co-relation queries the response was YES. Maximal size of possible extension queue 12713. Compared 1798543 event pairs, 14912 based on Foata normal form. 12/115339 useless extension candidates. Maximal degree in co-relation 653091. Up to 29364 conditions per place. [2021-03-24 13:31:56,866 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 371 selfloop transitions, 196 changer transitions 0/589 dead transitions. [2021-03-24 13:31:56,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 589 transitions, 11905 flow [2021-03-24 13:31:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:31:56,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:31:56,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:31:56,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:31:56,870 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:31:56,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:31:56,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:31:56,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:31:56,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:56,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:56,876 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:31:56,876 INFO L185 Difference]: Start difference. First operand has 191 places, 320 transitions, 5656 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:31:56,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 589 transitions, 11905 flow [2021-03-24 13:32:08,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 589 transitions, 11734 flow, removed 68 selfloop flow, removed 1 redundant places. [2021-03-24 13:32:08,860 INFO L241 Difference]: Finished difference. Result has 211 places, 464 transitions, 9496 flow [2021-03-24 13:32:08,860 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=5540, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9496, PETRI_PLACES=211, PETRI_TRANSITIONS=464} [2021-03-24 13:32:08,861 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 149 predicate places. [2021-03-24 13:32:08,861 INFO L480 AbstractCegarLoop]: Abstraction has has 211 places, 464 transitions, 9496 flow [2021-03-24 13:32:08,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:08,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:32:08,861 INFO L263 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] [2021-03-24 13:32:08,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 13:32:08,861 INFO L428 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]=== [2021-03-24 13:32:08,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:32:08,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1828638614, now seen corresponding path program 9 times [2021-03-24 13:32:08,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:32:08,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792810795] [2021-03-24 13:32:08,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:32:08,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:32:08,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:08,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:32:08,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:32:08,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:32:08,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-24 13:32:08,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 13:32:08,904 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:32:08,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:32:08,915 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:32:08,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:32:08,931 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-24 13:32:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 13:32:08,967 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-24 13:32:08,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 13:32:09,004 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-03-24 13:32:09,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 13:32:09,050 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-03-24 13:32:09,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-03-24 13:32:09,114 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:32:09,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:32:09,158 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:32:09,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:32:09,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:32:09,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792810795] [2021-03-24 13:32:09,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:32:09,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:32:09,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408292207] [2021-03-24 13:32:09,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:32:09,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:32:09,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:32:09,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:32:09,197 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:32:09,198 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 464 transitions, 9496 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:09,198 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:32:09,198 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:32:09,198 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:32:45,995 INFO L129 PetriNetUnfolder]: 50796/124109 cut-off events. [2021-03-24 13:32:45,995 INFO L130 PetriNetUnfolder]: For 2577699/2678527 co-relation queries the response was YES. [2021-03-24 13:32:48,894 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774305 conditions, 124109 events. 50796/124109 cut-off events. For 2577699/2678527 co-relation queries the response was YES. Maximal size of possible extension queue 13413. Compared 1873139 event pairs, 15999 based on Foata normal form. 13/122205 useless extension candidates. Maximal degree in co-relation 774215. Up to 35579 conditions per place. [2021-03-24 13:32:49,821 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 396 selfloop transitions, 281 changer transitions 0/699 dead transitions. [2021-03-24 13:32:49,821 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 699 transitions, 16179 flow [2021-03-24 13:32:49,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:32:49,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:32:49,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:32:49,837 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:32:49,837 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:32:49,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:32:49,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:32:49,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:32:49,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:49,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:49,862 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:32:49,862 INFO L185 Difference]: Start difference. First operand has 211 places, 464 transitions, 9496 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:32:49,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 699 transitions, 16179 flow [2021-03-24 13:33:19,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 699 transitions, 16012 flow, removed 53 selfloop flow, removed 1 redundant places. [2021-03-24 13:33:19,342 INFO L241 Difference]: Finished difference. Result has 231 places, 641 transitions, 15002 flow [2021-03-24 13:33:19,343 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=9338, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15002, PETRI_PLACES=231, PETRI_TRANSITIONS=641} [2021-03-24 13:33:19,343 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 169 predicate places. [2021-03-24 13:33:19,343 INFO L480 AbstractCegarLoop]: Abstraction has has 231 places, 641 transitions, 15002 flow [2021-03-24 13:33:19,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:19,344 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:33:19,344 INFO L263 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] [2021-03-24 13:33:19,344 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 13:33:19,344 INFO L428 AbstractCegarLoop]: === Iteration 18 === [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]=== [2021-03-24 13:33:19,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:33:19,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1753095926, now seen corresponding path program 1 times [2021-03-24 13:33:19,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:33:19,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420459270] [2021-03-24 13:33:19,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:33:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:33:19,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:19,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:33:19,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:19,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 13:33:19,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:19,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:33:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:33:19,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420459270] [2021-03-24 13:33:19,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:33:19,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 13:33:19,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887942663] [2021-03-24 13:33:19,360 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 13:33:19,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:33:19,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 13:33:19,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 13:33:19,361 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-03-24 13:33:19,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 641 transitions, 15002 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:19,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:33:19,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-03-24 13:33:19,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:33:25,321 INFO L129 PetriNetUnfolder]: 0/17373 cut-off events. [2021-03-24 13:33:25,321 INFO L130 PetriNetUnfolder]: For 217689/227657 co-relation queries the response was YES. [2021-03-24 13:33:25,322 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68265 conditions, 17373 events. 0/17373 cut-off events. For 217689/227657 co-relation queries the response was YES. Maximal size of possible extension queue 1560. Compared 344153 event pairs, 0 based on Foata normal form. 562/16615 useless extension candidates. Maximal degree in co-relation 0. Up to 1516 conditions per place. [2021-03-24 13:33:25,348 INFO L132 encePairwiseOnDemand]: 151/153 looper letters, 1 selfloop transitions, 1 changer transitions 10/639 dead transitions. [2021-03-24 13:33:25,349 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 639 transitions, 15000 flow [2021-03-24 13:33:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 13:33:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 13:33:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2021-03-24 13:33:25,350 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.934640522875817 [2021-03-24 13:33:25,350 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2021-03-24 13:33:25,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2021-03-24 13:33:25,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:33:25,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2021-03-24 13:33:25,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:25,351 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:25,351 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:25,351 INFO L185 Difference]: Start difference. First operand has 231 places, 641 transitions, 15002 flow. Second operand 3 states and 429 transitions. [2021-03-24 13:33:25,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 639 transitions, 15000 flow [2021-03-24 13:33:28,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 639 transitions, 14760 flow, removed 68 selfloop flow, removed 1 redundant places. [2021-03-24 13:33:28,599 INFO L241 Difference]: Finished difference. Result has 232 places, 629 transitions, 14668 flow [2021-03-24 13:33:28,600 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=14756, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=14668, PETRI_PLACES=232, PETRI_TRANSITIONS=629} [2021-03-24 13:33:28,600 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 170 predicate places. [2021-03-24 13:33:28,600 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 629 transitions, 14668 flow [2021-03-24 13:33:28,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:28,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:33:28,600 INFO L263 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] [2021-03-24 13:33:28,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 13:33:28,601 INFO L428 AbstractCegarLoop]: === Iteration 19 === [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]=== [2021-03-24 13:33:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:33:28,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1412473266, now seen corresponding path program 10 times [2021-03-24 13:33:28,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:33:28,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227313283] [2021-03-24 13:33:28,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:33:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:33:28,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:28,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:33:28,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:28,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:33:28,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:28,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:33:28,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:33:28,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:33:28,655 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:33:28,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:33:28,668 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:33:28,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:33:28,690 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:33:28,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:33:28,717 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:33:28,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:33:28,750 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:33:28,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:33:28,787 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 13:33:28,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 13:33:28,825 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:33:28,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:33:28,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:33:28,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227313283] [2021-03-24 13:33:28,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:33:28,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:33:28,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528935030] [2021-03-24 13:33:28,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:33:28,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:33:28,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:33:28,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:33:28,862 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:33:28,863 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 629 transitions, 14668 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:33:28,863 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:33:28,863 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:33:28,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:34:13,314 INFO L129 PetriNetUnfolder]: 48319/116405 cut-off events. [2021-03-24 13:34:13,315 INFO L130 PetriNetUnfolder]: For 3432735/3563929 co-relation queries the response was YES. [2021-03-24 13:34:15,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 911471 conditions, 116405 events. 48319/116405 cut-off events. For 3432735/3563929 co-relation queries the response was YES. Maximal size of possible extension queue 11691. Compared 1707441 event pairs, 21030 based on Foata normal form. 23/114365 useless extension candidates. Maximal degree in co-relation 911373. Up to 40765 conditions per place. [2021-03-24 13:34:16,205 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 528 selfloop transitions, 389 changer transitions 1/938 dead transitions. [2021-03-24 13:34:16,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 938 transitions, 22046 flow [2021-03-24 13:34:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:34:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:34:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:34:16,209 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:34:16,209 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:34:16,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:34:16,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:34:16,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:34:16,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:16,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:16,213 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:16,214 INFO L185 Difference]: Start difference. First operand has 232 places, 629 transitions, 14668 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:34:16,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 938 transitions, 22046 flow [2021-03-24 13:34:53,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 938 transitions, 21866 flow, removed 89 selfloop flow, removed 11 redundant places. [2021-03-24 13:34:53,888 INFO L241 Difference]: Finished difference. Result has 233 places, 690 transitions, 17128 flow [2021-03-24 13:34:53,889 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=14646, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17128, PETRI_PLACES=233, PETRI_TRANSITIONS=690} [2021-03-24 13:34:53,889 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 171 predicate places. [2021-03-24 13:34:53,889 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 690 transitions, 17128 flow [2021-03-24 13:34:53,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:53,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:34:53,890 INFO L263 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] [2021-03-24 13:34:53,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 13:34:53,890 INFO L428 AbstractCegarLoop]: === Iteration 20 === [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]=== [2021-03-24 13:34:53,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:34:53,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1274311896, now seen corresponding path program 11 times [2021-03-24 13:34:53,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:34:53,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152877510] [2021-03-24 13:34:53,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:34:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:34:53,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:53,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:34:53,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:53,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:34:53,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:34:53,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:34:53,943 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:34:53,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:34:53,954 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:34:53,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:34:53,969 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:34:53,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:34:53,988 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:34:53,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:34:54,011 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:34:54,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:34:54,039 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:34:54,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:34:54,072 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:34:54,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:34:54,140 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:34:54,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:34:54,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:34:54,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152877510] [2021-03-24 13:34:54,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:34:54,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:34:54,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23409345] [2021-03-24 13:34:54,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:34:54,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:34:54,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:34:54,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:34:54,178 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:34:54,179 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 690 transitions, 17128 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:34:54,179 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:34:54,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:34:54,179 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:35:50,688 INFO L129 PetriNetUnfolder]: 50030/128572 cut-off events. [2021-03-24 13:35:50,688 INFO L130 PetriNetUnfolder]: For 4150888/4282403 co-relation queries the response was YES. [2021-03-24 13:35:53,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008886 conditions, 128572 events. 50030/128572 cut-off events. For 4150888/4282403 co-relation queries the response was YES. Maximal size of possible extension queue 12890. Compared 1973305 event pairs, 22371 based on Foata normal form. 25/126745 useless extension candidates. Maximal degree in co-relation 1008788. Up to 41680 conditions per place. [2021-03-24 13:35:53,957 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 285 selfloop transitions, 547 changer transitions 2/854 dead transitions. [2021-03-24 13:35:53,957 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 854 transitions, 22040 flow [2021-03-24 13:35:53,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:35:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:35:53,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:35:53,963 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:35:53,963 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:35:53,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:35:53,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:35:53,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:35:53,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:53,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:53,967 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:35:53,967 INFO L185 Difference]: Start difference. First operand has 233 places, 690 transitions, 17128 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:35:53,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 854 transitions, 22040 flow [2021-03-24 13:36:47,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 854 transitions, 21164 flow, removed 278 selfloop flow, removed 2 redundant places. [2021-03-24 13:36:47,748 INFO L241 Difference]: Finished difference. Result has 251 places, 745 transitions, 19544 flow [2021-03-24 13:36:47,749 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=16516, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=492, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19544, PETRI_PLACES=251, PETRI_TRANSITIONS=745} [2021-03-24 13:36:47,749 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 189 predicate places. [2021-03-24 13:36:47,749 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 745 transitions, 19544 flow [2021-03-24 13:36:47,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:36:47,749 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:36:47,749 INFO L263 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] [2021-03-24 13:36:47,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 13:36:47,749 INFO L428 AbstractCegarLoop]: === Iteration 21 === [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]=== [2021-03-24 13:36:47,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:36:47,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1855664006, now seen corresponding path program 12 times [2021-03-24 13:36:47,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:36:47,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821883483] [2021-03-24 13:36:47,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:36:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:36:47,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:36:47,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:36:47,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:36:47,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:36:47,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:36:47,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:36:47,790 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:36:47,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:36:47,801 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-24 13:36:47,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 13:36:47,817 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-24 13:36:47,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 13:36:47,839 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:36:47,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:36:47,869 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:36:47,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:36:47,897 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-03-24 13:36:47,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 13:36:47,930 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 13:36:47,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 13:36:47,969 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:36:47,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:36:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:36:48,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821883483] [2021-03-24 13:36:48,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:36:48,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:36:48,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443518115] [2021-03-24 13:36:48,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:36:48,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:36:48,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:36:48,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:36:48,012 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:36:48,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 745 transitions, 19544 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:36:48,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:36:48,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:36:48,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:37:56,783 INFO L129 PetriNetUnfolder]: 54635/147389 cut-off events. [2021-03-24 13:37:56,783 INFO L130 PetriNetUnfolder]: For 5584120/5769330 co-relation queries the response was YES. [2021-03-24 13:38:00,004 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224867 conditions, 147389 events. 54635/147389 cut-off events. For 5584120/5769330 co-relation queries the response was YES. Maximal size of possible extension queue 15247. Compared 2388902 event pairs, 27475 based on Foata normal form. 47/145021 useless extension candidates. Maximal degree in co-relation 1224760. Up to 47894 conditions per place. [2021-03-24 13:38:00,824 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 624 selfloop transitions, 502 changer transitions 1/1147 dead transitions. [2021-03-24 13:38:00,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 1147 transitions, 30156 flow [2021-03-24 13:38:00,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:38:00,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:38:00,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:38:00,826 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:38:00,826 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:38:00,826 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:38:00,827 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:38:00,827 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:38:00,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:00,830 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:00,830 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:00,830 INFO L185 Difference]: Start difference. First operand has 251 places, 745 transitions, 19544 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:38:00,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 1147 transitions, 30156 flow [2021-03-24 13:38:53,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1147 transitions, 29244 flow, removed 296 selfloop flow, removed 2 redundant places. [2021-03-24 13:38:53,074 INFO L241 Difference]: Finished difference. Result has 269 places, 915 transitions, 24698 flow [2021-03-24 13:38:53,074 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=18944, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24698, PETRI_PLACES=269, PETRI_TRANSITIONS=915} [2021-03-24 13:38:53,075 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 207 predicate places. [2021-03-24 13:38:53,075 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 915 transitions, 24698 flow [2021-03-24 13:38:53,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:53,075 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:38:53,075 INFO L263 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] [2021-03-24 13:38:53,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 13:38:53,075 INFO L428 AbstractCegarLoop]: === Iteration 22 === [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]=== [2021-03-24 13:38:53,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:38:53,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1254125054, now seen corresponding path program 13 times [2021-03-24 13:38:53,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:38:53,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934203025] [2021-03-24 13:38:53,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:38:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:38:53,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:38:53,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:38:53,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:38:53,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:38:53,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:38:53,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:38:53,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:38:53,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 13:38:53,121 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:38:53,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:38:53,135 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:38:53,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:38:53,154 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-24 13:38:53,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 13:38:53,178 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-24 13:38:53,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 13:38:53,214 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-03-24 13:38:53,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 13:38:53,256 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:38:53,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:38:53,303 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:38:53,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:38:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:38:53,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934203025] [2021-03-24 13:38:53,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:38:53,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:38:53,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550030503] [2021-03-24 13:38:53,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:38:53,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:38:53,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:38:53,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:38:53,346 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:38:53,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 915 transitions, 24698 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:38:53,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:38:53,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:38:53,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 13:40:15,846 INFO L129 PetriNetUnfolder]: 55946/152164 cut-off events. [2021-03-24 13:40:15,847 INFO L130 PetriNetUnfolder]: For 6324263/6481339 co-relation queries the response was YES. [2021-03-24 13:40:19,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322792 conditions, 152164 events. 55946/152164 cut-off events. For 6324263/6481339 co-relation queries the response was YES. Maximal size of possible extension queue 15554. Compared 2491202 event pairs, 22537 based on Foata normal form. 45/148697 useless extension candidates. Maximal degree in co-relation 1322676. Up to 45926 conditions per place. [2021-03-24 13:40:20,665 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 812 selfloop transitions, 479 changer transitions 1/1312 dead transitions. [2021-03-24 13:40:20,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 1312 transitions, 36296 flow [2021-03-24 13:40:20,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 13:40:20,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 13:40:20,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-03-24 13:40:20,675 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-03-24 13:40:20,675 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-03-24 13:40:20,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-03-24 13:40:20,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 13:40:20,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-03-24 13:40:20,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:40:20,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:40:20,678 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:40:20,678 INFO L185 Difference]: Start difference. First operand has 269 places, 915 transitions, 24698 flow. Second operand 12 states and 1637 transitions. [2021-03-24 13:40:20,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 1312 transitions, 36296 flow [2021-03-24 13:41:54,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 1312 transitions, 35288 flow, removed 344 selfloop flow, removed 2 redundant places. [2021-03-24 13:41:54,427 INFO L241 Difference]: Finished difference. Result has 287 places, 1005 transitions, 27898 flow [2021-03-24 13:41:54,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=23966, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27898, PETRI_PLACES=287, PETRI_TRANSITIONS=1005} [2021-03-24 13:41:54,428 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 225 predicate places. [2021-03-24 13:41:54,428 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 1005 transitions, 27898 flow [2021-03-24 13:41:54,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:41:54,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 13:41:54,429 INFO L263 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] [2021-03-24 13:41:54,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 13:41:54,429 INFO L428 AbstractCegarLoop]: === Iteration 23 === [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]=== [2021-03-24 13:41:54,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 13:41:54,429 INFO L82 PathProgramCache]: Analyzing trace with hash -112403758, now seen corresponding path program 14 times [2021-03-24 13:41:54,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 13:41:54,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153337056] [2021-03-24 13:41:54,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 13:41:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 13:41:54,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:41:54,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 13:41:54,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:41:54,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 13:41:54,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 13:41:54,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 13:41:54,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-24 13:41:54,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-24 13:41:54,475 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-24 13:41:54,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 13:41:54,489 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 13:41:54,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 13:41:54,506 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-24 13:41:54,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 13:41:54,528 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-24 13:41:54,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 13:41:54,560 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-03-24 13:41:54,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 13:41:54,592 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-03-24 13:41:54,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-03-24 13:41:54,641 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-03-24 13:41:54,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 13:41:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 13:41:54,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153337056] [2021-03-24 13:41:54,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 13:41:54,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 13:41:54,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021419402] [2021-03-24 13:41:54,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-03-24 13:41:54,685 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 13:41:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-03-24 13:41:54,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-03-24 13:41:54,686 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-03-24 13:41:54,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 1005 transitions, 27898 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 13:41:54,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 13:41:54,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-03-24 13:41:54,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-03-24 13:42:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 13:42:54,212 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 13:42:54,212 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-24 13:42:54,214 WARN L224 ceAbstractionStarter]: Timeout [2021-03-24 13:42:54,214 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 01:42:54 BasicIcfg [2021-03-24 13:42:54,215 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 13:42:54,215 INFO L168 Benchmark]: Toolchain (without parser) took 739264.95 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 236.8 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 7.3 GB. Max. memory is 16.0 GB. [2021-03-24 13:42:54,215 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:42:54,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.61 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:42:54,216 INFO L168 Benchmark]: Boogie Preprocessor took 12.44 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.4 MB in the end (delta: 786.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:42:54,216 INFO L168 Benchmark]: RCFGBuilder took 235.57 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 236.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. [2021-03-24 13:42:54,216 INFO L168 Benchmark]: TraceAbstraction took 738988.40 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 235.3 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 7.3 GB. Max. memory is 16.0 GB. [2021-03-24 13:42:54,216 INFO L339 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.8 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.61 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.44 ms. Allocated memory is still 255.9 MB. Free memory was 235.2 MB in the beginning and 234.4 MB in the end (delta: 786.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 235.57 ms. Allocated memory is still 255.9 MB. Free memory was 234.2 MB in the beginning and 236.0 MB in the end (delta: -1.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.0 GB. * TraceAbstraction took 738988.40 ms. Allocated memory was 255.9 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 235.3 MB in the beginning and 8.8 GB in the end (delta: -8.5 GB). Peak memory consumption was 7.3 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 662.6ms, 72 PlacesBefore, 62 PlacesAfterwards, 131 TransitionsBefore, 121 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1035 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1035, positive: 1035, positive conditional: 0, positive unconditional: 1035, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 990, positive: 990, positive conditional: 0, positive unconditional: 990, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 990, positive: 990, positive conditional: 0, positive unconditional: 990, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1035, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 990, unknown conditional: 0, unknown unconditional: 990] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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 23,while PetriNetUnfolder was constructing finite prefix that currently has 1249064 conditions, 91113 events (54617/91112 cut-off events. For 7711878/7913694 co-relation queries the response was YES. Maximal size of possible extension queue 19473. Compared 1102733 event pairs, 24189 based on Foata normal form. 66/107762 useless extension candidates. Maximal degree in co-relation 1248944. Up to 44866 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 325.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 738719.3ms, OverallIterations: 23, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 731533.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1450.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 758 SDtfs, 786 SDslu, 728 SDs, 0 SdLazy, 1370 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1222.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 4486.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27898occurred in iteration=22, InterpolantAutomatonStates: 183, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.9ms SsaConstructionTime, 104.9ms SatisfiabilityAnalysisTime, 5021.5ms InterpolantComputationTime, 713 NumberOfCodeBlocks, 713 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 690 ConstructedInterpolants, 0 QuantifiedInterpolants, 16606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown