/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 11:28:27,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 11:28:27,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 11:28:28,021 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 11:28:28,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 11:28:28,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 11:28:28,025 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 11:28:28,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 11:28:28,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 11:28:28,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 11:28:28,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 11:28:28,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 11:28:28,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 11:28:28,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 11:28:28,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 11:28:28,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 11:28:28,050 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 11:28:28,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 11:28:28,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 11:28:28,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 11:28:28,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 11:28:28,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 11:28:28,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 11:28:28,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 11:28:28,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 11:28:28,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 11:28:28,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 11:28:28,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 11:28:28,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 11:28:28,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 11:28:28,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 11:28:28,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 11:28:28,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 11:28:28,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 11:28:28,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 11:28:28,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 11:28:28,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 11:28:28,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 11:28:28,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 11:28:28,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 11:28:28,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 11:28:28,071 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-RepeatedSemanticLbe.epf [2021-06-11 11:28:28,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 11:28:28,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 11:28:28,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 11:28:28,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 11:28:28,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 11:28:28,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 11:28:28,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 11:28:28,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 11:28:28,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 11:28:28,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 11:28:28,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 11:28:28,106 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 11:28:28,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 11:28:28,353 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 11:28:28,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 11:28:28,355 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 11:28:28,356 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 11:28:28,357 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl [2021-06-11 11:28:28,357 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl' [2021-06-11 11:28:28,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 11:28:28,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 11:28:28,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 11:28:28,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 11:28:28,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 11:28:28,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 11:28:28,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 11:28:28,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 11:28:28,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 11:28:28,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/1) ... [2021-06-11 11:28:28,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 11:28:28,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 11:28:28,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 11:28:28,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 11:28:28,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (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 [2021-06-11 11:28:28,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-11 11:28:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-11 11:28:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-11 11:28:28,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-11 11:28:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-11 11:28:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-11 11:28:28,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 11:28:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 11:28:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 11:28:28,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-11 11:28:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-11 11:28:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-11 11:28:28,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-11 11:28:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-11 11:28:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-11 11:28:28,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-06-11 11:28:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-06-11 11:28:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-06-11 11:28:28,472 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2021-06-11 11:28:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2021-06-11 11:28:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2021-06-11 11:28:28,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2021-06-11 11:28:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2021-06-11 11:28:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2021-06-11 11:28:28,474 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 11:28:28,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 11:28:28,639 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 11:28:28,640 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 11:28:28 BoogieIcfgContainer [2021-06-11 11:28:28,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 11:28:28,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 11:28:28,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 11:28:28,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 11:28:28,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 11:28:28" (1/2) ... [2021-06-11 11:28:28,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3855ff and model type ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 11:28:28, skipping insertion in model container [2021-06-11 11:28:28,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 11:28:28" (2/2) ... [2021-06-11 11:28:28,657 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-7.wvr.bpl [2021-06-11 11:28:28,660 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 11:28:28,662 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 11:28:28,663 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 11:28:28,744 INFO L149 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2021-06-11 11:28:28,755 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-06-11 11:28:28,768 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 11:28:28,768 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 11:28:28,768 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 11:28:28,768 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 11:28:28,768 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 11:28:28,768 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 11:28:28,768 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 11:28:28,768 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 11:28:28,776 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 62 transitions, 180 flow [2021-06-11 11:28:28,805 INFO L129 PetriNetUnfolder]: 0/55 cut-off events. [2021-06-11 11:28:28,806 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 11:28:28,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 55 events. 0/55 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 154 event pairs, 0 based on Foata normal form. 0/54 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 11:28:28,807 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 62 transitions, 180 flow [2021-06-11 11:28:28,810 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 53 transitions, 148 flow [2021-06-11 11:28:28,811 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:28:28,819 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 53 transitions, 148 flow [2021-06-11 11:28:28,821 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 53 transitions, 148 flow [2021-06-11 11:28:28,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 75 places, 53 transitions, 148 flow [2021-06-11 11:28:28,837 INFO L129 PetriNetUnfolder]: 0/53 cut-off events. [2021-06-11 11:28:28,837 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 11:28:28,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 53 events. 0/53 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 152 event pairs, 0 based on Foata normal form. 0/53 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-11 11:28:28,839 INFO L151 LiptonReduction]: Number of co-enabled transitions 1542 [2021-06-11 11:28:29,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:29,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,140 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:29,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,259 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:29,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:29,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,367 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:29,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:29,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,469 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:29,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,536 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:29,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:29,843 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:29,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:29,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:30,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:30,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:30,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,234 INFO L147 QuantifierPusher]: treesize reduction 11, result has 8.3 percent of original size 1 [2021-06-11 11:28:30,258 INFO L163 LiptonReduction]: Checked pairs total: 2616 [2021-06-11 11:28:30,259 INFO L165 LiptonReduction]: Total number of compositions: 22 [2021-06-11 11:28:30,260 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1450 [2021-06-11 11:28:30,270 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-06-11 11:28:30,270 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 11:28:30,270 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:28:30,270 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] [2021-06-11 11:28:30,270 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:28:30,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:28:30,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1984223609, now seen corresponding path program 1 times [2021-06-11 11:28:30,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:28:30,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303106264] [2021-06-11 11:28:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:28:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:28:30,417 INFO L142 QuantifierPusher]: treesize reduction 15, result has 46.4 percent of original size [2021-06-11 11:28:30,418 INFO L147 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size 9 [2021-06-11 11:28:30,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-11 11:28:30,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:30,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:30,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-06-11 11:28:30,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:28:30,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303106264] [2021-06-11 11:28:30,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:28:30,440 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 11:28:30,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887636125] [2021-06-11 11:28:30,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 11:28:30,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:28:30,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 11:28:30,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-11 11:28:30,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 84 [2021-06-11 11:28:30,455 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 31 transitions, 104 flow. Second operand has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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) [2021-06-11 11:28:30,455 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:28:30,455 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 84 [2021-06-11 11:28:30,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:28:31,758 INFO L129 PetriNetUnfolder]: 15335/19975 cut-off events. [2021-06-11 11:28:31,759 INFO L130 PetriNetUnfolder]: For 386/386 co-relation queries the response was YES. [2021-06-11 11:28:31,807 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39966 conditions, 19975 events. 15335/19975 cut-off events. For 386/386 co-relation queries the response was YES. Maximal size of possible extension queue 1160. Compared 104510 event pairs, 7502 based on Foata normal form. 1/19888 useless extension candidates. Maximal degree in co-relation 39928. Up to 10206 conditions per place. [2021-06-11 11:28:31,916 INFO L132 encePairwiseOnDemand]: 67/84 looper letters, 33 selfloop transitions, 15 changer transitions 1/63 dead transitions. [2021-06-11 11:28:31,917 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 63 transitions, 266 flow [2021-06-11 11:28:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 11:28:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 11:28:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 295 transitions. [2021-06-11 11:28:31,930 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2021-06-11 11:28:31,930 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 295 transitions. [2021-06-11 11:28:31,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 295 transitions. [2021-06-11 11:28:31,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:28:31,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 295 transitions. [2021-06-11 11:28:31,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 59.0) internal successors, (295), 5 states have internal predecessors, (295), 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) [2021-06-11 11:28:31,938 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:28:31,938 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:28:31,939 INFO L185 Difference]: Start difference. First operand has 53 places, 31 transitions, 104 flow. Second operand 5 states and 295 transitions. [2021-06-11 11:28:31,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 63 transitions, 266 flow [2021-06-11 11:28:31,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 63 transitions, 238 flow, removed 0 selfloop flow, removed 14 redundant places. [2021-06-11 11:28:31,953 INFO L241 Difference]: Finished difference. Result has 46 places, 44 transitions, 185 flow [2021-06-11 11:28:31,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=185, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2021-06-11 11:28:31,954 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, -7 predicate places. [2021-06-11 11:28:31,954 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:28:31,954 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 44 transitions, 185 flow [2021-06-11 11:28:31,955 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 44 transitions, 185 flow [2021-06-11 11:28:31,955 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 44 transitions, 185 flow [2021-06-11 11:28:32,302 INFO L129 PetriNetUnfolder]: 3652/6383 cut-off events. [2021-06-11 11:28:32,302 INFO L130 PetriNetUnfolder]: For 418/431 co-relation queries the response was YES. [2021-06-11 11:28:32,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13410 conditions, 6383 events. 3652/6383 cut-off events. For 418/431 co-relation queries the response was YES. Maximal size of possible extension queue 698. Compared 50270 event pairs, 2368 based on Foata normal form. 0/5717 useless extension candidates. Maximal degree in co-relation 12665. Up to 4793 conditions per place. [2021-06-11 11:28:32,354 INFO L151 LiptonReduction]: Number of co-enabled transitions 404 [2021-06-11 11:28:32,359 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:28:32,359 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:28:32,359 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 405 [2021-06-11 11:28:32,361 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 185 flow [2021-06-11 11:28:32,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 52.4) internal successors, (262), 5 states have internal predecessors, (262), 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) [2021-06-11 11:28:32,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:28:32,361 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] [2021-06-11 11:28:32,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 11:28:32,362 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:28:32,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:28:32,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1599660939, now seen corresponding path program 2 times [2021-06-11 11:28:32,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:28:32,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153731970] [2021-06-11 11:28:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:28:32,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:28:32,400 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:32,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:32,403 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:32,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:32,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:32,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:32,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:32,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:32,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:32,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:32,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:28:32,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153731970] [2021-06-11 11:28:32,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:28:32,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:28:32,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239669578] [2021-06-11 11:28:32,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:28:32,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:28:32,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:28:32,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:28:32,415 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:28:32,415 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 185 flow. Second operand has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:28:32,415 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:28:32,415 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:28:32,415 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:28:34,985 INFO L129 PetriNetUnfolder]: 34489/45398 cut-off events. [2021-06-11 11:28:34,985 INFO L130 PetriNetUnfolder]: For 23421/26828 co-relation queries the response was YES. [2021-06-11 11:28:35,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140999 conditions, 45398 events. 34489/45398 cut-off events. For 23421/26828 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 265162 event pairs, 9597 based on Foata normal form. 858/46156 useless extension candidates. Maximal degree in co-relation 140073. Up to 22345 conditions per place. [2021-06-11 11:28:35,264 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 36 selfloop transitions, 53 changer transitions 0/104 dead transitions. [2021-06-11 11:28:35,264 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 104 transitions, 626 flow [2021-06-11 11:28:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:28:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:28:35,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-06-11 11:28:35,266 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2021-06-11 11:28:35,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-06-11 11:28:35,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-06-11 11:28:35,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:28:35,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-06-11 11:28:35,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2021-06-11 11:28:35,268 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:28:35,269 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:28:35,269 INFO L185 Difference]: Start difference. First operand has 46 places, 44 transitions, 185 flow. Second operand 6 states and 307 transitions. [2021-06-11 11:28:35,269 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 104 transitions, 626 flow [2021-06-11 11:28:35,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 104 transitions, 578 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-06-11 11:28:35,280 INFO L241 Difference]: Finished difference. Result has 49 places, 89 transitions, 537 flow [2021-06-11 11:28:35,280 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=537, PETRI_PLACES=49, PETRI_TRANSITIONS=89} [2021-06-11 11:28:35,281 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, -4 predicate places. [2021-06-11 11:28:35,281 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:28:35,281 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 89 transitions, 537 flow [2021-06-11 11:28:35,281 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 89 transitions, 537 flow [2021-06-11 11:28:35,282 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 89 transitions, 537 flow [2021-06-11 11:28:37,159 INFO L129 PetriNetUnfolder]: 28245/38635 cut-off events. [2021-06-11 11:28:37,159 INFO L130 PetriNetUnfolder]: For 27467/29702 co-relation queries the response was YES. [2021-06-11 11:28:37,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 124249 conditions, 38635 events. 28245/38635 cut-off events. For 27467/29702 co-relation queries the response was YES. Maximal size of possible extension queue 2284. Compared 245584 event pairs, 7431 based on Foata normal form. 731/38857 useless extension candidates. Maximal degree in co-relation 122831. Up to 21109 conditions per place. [2021-06-11 11:28:37,435 INFO L151 LiptonReduction]: Number of co-enabled transitions 752 [2021-06-11 11:28:40,261 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:28:40,262 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:28:40,262 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4981 [2021-06-11 11:28:40,263 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 89 transitions, 537 flow [2021-06-11 11:28:40,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:28:40,263 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:28:40,263 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] [2021-06-11 11:28:40,263 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 11:28:40,263 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:28:40,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:28:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1934595379, now seen corresponding path program 3 times [2021-06-11 11:28:40,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:28:40,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386152084] [2021-06-11 11:28:40,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:28:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:28:40,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:40,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:40,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:40,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:40,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:40,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:40,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:40,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:28:40,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386152084] [2021-06-11 11:28:40,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:28:40,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 11:28:40,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635397197] [2021-06-11 11:28:40,294 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 11:28:40,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:28:40,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 11:28:40,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-11 11:28:40,294 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:28:40,295 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 89 transitions, 537 flow. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-06-11 11:28:40,295 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:28:40,295 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:28:40,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:28:42,520 INFO L129 PetriNetUnfolder]: 35104/45875 cut-off events. [2021-06-11 11:28:42,521 INFO L130 PetriNetUnfolder]: For 45114/60295 co-relation queries the response was YES. [2021-06-11 11:28:42,622 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192980 conditions, 45875 events. 35104/45875 cut-off events. For 45114/60295 co-relation queries the response was YES. Maximal size of possible extension queue 2574. Compared 261604 event pairs, 6966 based on Foata normal form. 169/45912 useless extension candidates. Maximal degree in co-relation 192334. Up to 43859 conditions per place. [2021-06-11 11:28:42,829 INFO L132 encePairwiseOnDemand]: 70/84 looper letters, 86 selfloop transitions, 56 changer transitions 0/157 dead transitions. [2021-06-11 11:28:42,829 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 157 transitions, 1278 flow [2021-06-11 11:28:42,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 11:28:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 11:28:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2021-06-11 11:28:42,831 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2021-06-11 11:28:42,831 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 250 transitions. [2021-06-11 11:28:42,831 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 250 transitions. [2021-06-11 11:28:42,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:28:42,831 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 250 transitions. [2021-06-11 11:28:42,832 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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) [2021-06-11 11:28:42,833 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:28:42,833 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:28:42,833 INFO L185 Difference]: Start difference. First operand has 49 places, 89 transitions, 537 flow. Second operand 5 states and 250 transitions. [2021-06-11 11:28:42,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 157 transitions, 1278 flow [2021-06-11 11:28:42,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 157 transitions, 1242 flow, removed 14 selfloop flow, removed 1 redundant places. [2021-06-11 11:28:42,863 INFO L241 Difference]: Finished difference. Result has 54 places, 137 transitions, 1085 flow [2021-06-11 11:28:42,864 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=515, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1085, PETRI_PLACES=54, PETRI_TRANSITIONS=137} [2021-06-11 11:28:42,864 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2021-06-11 11:28:42,865 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:28:42,865 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 137 transitions, 1085 flow [2021-06-11 11:28:42,865 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 137 transitions, 1085 flow [2021-06-11 11:28:42,866 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 137 transitions, 1085 flow [2021-06-11 11:28:44,945 INFO L129 PetriNetUnfolder]: 28952/39640 cut-off events. [2021-06-11 11:28:44,945 INFO L130 PetriNetUnfolder]: For 55850/58478 co-relation queries the response was YES. [2021-06-11 11:28:45,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140169 conditions, 39640 events. 28952/39640 cut-off events. For 55850/58478 co-relation queries the response was YES. Maximal size of possible extension queue 2377. Compared 254797 event pairs, 6601 based on Foata normal form. 473/39547 useless extension candidates. Maximal degree in co-relation 138962. Up to 21473 conditions per place. [2021-06-11 11:28:45,351 INFO L151 LiptonReduction]: Number of co-enabled transitions 956 [2021-06-11 11:28:47,257 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:28:47,258 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:28:47,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4393 [2021-06-11 11:28:47,259 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 137 transitions, 1085 flow [2021-06-11 11:28:47,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-06-11 11:28:47,259 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:28:47,259 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] [2021-06-11 11:28:47,259 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 11:28:47,259 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:28:47,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:28:47,260 INFO L82 PathProgramCache]: Analyzing trace with hash -597380759, now seen corresponding path program 4 times [2021-06-11 11:28:47,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:28:47,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080751749] [2021-06-11 11:28:47,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:28:47,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:28:47,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:28:47,285 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,295 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:28:47,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:28:47,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:28:47,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:28:47,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080751749] [2021-06-11 11:28:47,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:28:47,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-11 11:28:47,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484510226] [2021-06-11 11:28:47,312 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-11 11:28:47,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:28:47,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-11 11:28:47,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-06-11 11:28:47,313 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:28:47,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 137 transitions, 1085 flow. Second operand has 9 states, 9 states have (on average 41.77777777777778) internal successors, (376), 9 states have internal predecessors, (376), 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) [2021-06-11 11:28:47,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:28:47,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:28:47,314 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:28:51,624 INFO L129 PetriNetUnfolder]: 46490/61720 cut-off events. [2021-06-11 11:28:51,624 INFO L130 PetriNetUnfolder]: For 97630/105389 co-relation queries the response was YES. [2021-06-11 11:28:51,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268432 conditions, 61720 events. 46490/61720 cut-off events. For 97630/105389 co-relation queries the response was YES. Maximal size of possible extension queue 3497. Compared 377630 event pairs, 7432 based on Foata normal form. 375/61976 useless extension candidates. Maximal degree in co-relation 267160. Up to 31655 conditions per place. [2021-06-11 11:28:52,495 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 41 selfloop transitions, 470 changer transitions 0/526 dead transitions. [2021-06-11 11:28:52,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 526 transitions, 5268 flow [2021-06-11 11:28:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-11 11:28:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-06-11 11:28:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 472 transitions. [2021-06-11 11:28:52,497 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6243386243386243 [2021-06-11 11:28:52,497 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 472 transitions. [2021-06-11 11:28:52,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 472 transitions. [2021-06-11 11:28:52,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:28:52,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 472 transitions. [2021-06-11 11:28:52,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 52.44444444444444) internal successors, (472), 9 states have internal predecessors, (472), 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) [2021-06-11 11:28:52,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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) [2021-06-11 11:28:52,501 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 84.0) internal successors, (840), 10 states have internal predecessors, (840), 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) [2021-06-11 11:28:52,501 INFO L185 Difference]: Start difference. First operand has 54 places, 137 transitions, 1085 flow. Second operand 9 states and 472 transitions. [2021-06-11 11:28:52,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 526 transitions, 5268 flow [2021-06-11 11:28:52,528 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 526 transitions, 5260 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 11:28:52,536 INFO L241 Difference]: Finished difference. Result has 61 places, 520 transitions, 5222 flow [2021-06-11 11:28:52,536 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=1077, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5222, PETRI_PLACES=61, PETRI_TRANSITIONS=520} [2021-06-11 11:28:52,536 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 8 predicate places. [2021-06-11 11:28:52,536 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:28:52,536 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 520 transitions, 5222 flow [2021-06-11 11:28:52,537 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 520 transitions, 5222 flow [2021-06-11 11:28:52,539 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 520 transitions, 5222 flow [2021-06-11 11:28:56,515 INFO L129 PetriNetUnfolder]: 41215/54534 cut-off events. [2021-06-11 11:28:56,515 INFO L130 PetriNetUnfolder]: For 103056/113494 co-relation queries the response was YES. [2021-06-11 11:28:56,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239664 conditions, 54534 events. 41215/54534 cut-off events. For 103056/113494 co-relation queries the response was YES. Maximal size of possible extension queue 3149. Compared 332055 event pairs, 5904 based on Foata normal form. 2437/56793 useless extension candidates. Maximal degree in co-relation 238571. Up to 31655 conditions per place. [2021-06-11 11:28:56,854 INFO L151 LiptonReduction]: Number of co-enabled transitions 2574 [2021-06-11 11:29:00,355 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:29:00,355 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:29:00,356 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7820 [2021-06-11 11:29:00,356 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 520 transitions, 5222 flow [2021-06-11 11:29:00,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 41.77777777777778) internal successors, (376), 9 states have internal predecessors, (376), 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) [2021-06-11 11:29:00,356 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:29:00,357 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] [2021-06-11 11:29:00,357 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 11:29:00,357 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:29:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:29:00,357 INFO L82 PathProgramCache]: Analyzing trace with hash -2096203875, now seen corresponding path program 5 times [2021-06-11 11:29:00,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:29:00,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332375613] [2021-06-11 11:29:00,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:29:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:29:00,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:00,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:29:00,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:00,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:00,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:00,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:00,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:00,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:29:00,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:29:00,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332375613] [2021-06-11 11:29:00,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:29:00,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-11 11:29:00,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53808246] [2021-06-11 11:29:00,383 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-11 11:29:00,383 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:29:00,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-11 11:29:00,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-06-11 11:29:00,383 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:29:00,383 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 520 transitions, 5222 flow. Second operand has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-06-11 11:29:00,383 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:29:00,384 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:29:00,384 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:29:06,046 INFO L129 PetriNetUnfolder]: 46894/62244 cut-off events. [2021-06-11 11:29:06,046 INFO L130 PetriNetUnfolder]: For 114450/155211 co-relation queries the response was YES. [2021-06-11 11:29:06,193 INFO L84 FinitePrefix]: Finished finitePrefix Result has 328814 conditions, 62244 events. 46894/62244 cut-off events. For 114450/155211 co-relation queries the response was YES. Maximal size of possible extension queue 3520. Compared 379413 event pairs, 9799 based on Foata normal form. 270/62396 useless extension candidates. Maximal degree in co-relation 327542. Up to 59048 conditions per place. [2021-06-11 11:29:06,500 INFO L132 encePairwiseOnDemand]: 70/84 looper letters, 386 selfloop transitions, 254 changer transitions 0/655 dead transitions. [2021-06-11 11:29:06,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 655 transitions, 7864 flow [2021-06-11 11:29:06,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-11 11:29:06,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-06-11 11:29:06,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2021-06-11 11:29:06,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5952380952380952 [2021-06-11 11:29:06,502 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 250 transitions. [2021-06-11 11:29:06,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 250 transitions. [2021-06-11 11:29:06,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:29:06,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 250 transitions. [2021-06-11 11:29:06,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 50.0) internal successors, (250), 5 states have internal predecessors, (250), 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) [2021-06-11 11:29:06,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:29:06,503 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 84.0) internal successors, (504), 6 states have internal predecessors, (504), 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) [2021-06-11 11:29:06,504 INFO L185 Difference]: Start difference. First operand has 61 places, 520 transitions, 5222 flow. Second operand 5 states and 250 transitions. [2021-06-11 11:29:06,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 655 transitions, 7864 flow [2021-06-11 11:29:07,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 655 transitions, 7512 flow, removed 168 selfloop flow, removed 2 redundant places. [2021-06-11 11:29:07,030 INFO L241 Difference]: Finished difference. Result has 64 places, 595 transitions, 6531 flow [2021-06-11 11:29:07,030 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=5026, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=179, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=6531, PETRI_PLACES=64, PETRI_TRANSITIONS=595} [2021-06-11 11:29:07,031 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2021-06-11 11:29:07,031 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:29:07,031 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 595 transitions, 6531 flow [2021-06-11 11:29:07,031 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 595 transitions, 6531 flow [2021-06-11 11:29:07,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 595 transitions, 6531 flow [2021-06-11 11:29:10,883 INFO L129 PetriNetUnfolder]: 41523/54728 cut-off events. [2021-06-11 11:29:10,883 INFO L130 PetriNetUnfolder]: For 91883/99077 co-relation queries the response was YES. [2021-06-11 11:29:11,015 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216552 conditions, 54728 events. 41523/54728 cut-off events. For 91883/99077 co-relation queries the response was YES. Maximal size of possible extension queue 3041. Compared 326515 event pairs, 4869 based on Foata normal form. 2503/57088 useless extension candidates. Maximal degree in co-relation 215444. Up to 31835 conditions per place. [2021-06-11 11:29:11,414 INFO L151 LiptonReduction]: Number of co-enabled transitions 2750 [2021-06-11 11:29:17,161 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:29:17,162 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:29:17,162 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10131 [2021-06-11 11:29:17,162 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 595 transitions, 6531 flow [2021-06-11 11:29:17,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 43.2) internal successors, (216), 5 states have internal predecessors, (216), 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) [2021-06-11 11:29:17,163 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:29:17,163 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] [2021-06-11 11:29:17,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 11:29:17,163 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:29:17,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:29:17,163 INFO L82 PathProgramCache]: Analyzing trace with hash 774189549, now seen corresponding path program 6 times [2021-06-11 11:29:17,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:29:17,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305629305] [2021-06-11 11:29:17,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:29:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:29:17,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:29:17,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:17,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:17,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:17,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:29:17,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:29:17,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:29:17,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:29:17,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305629305] [2021-06-11 11:29:17,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:29:17,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:29:17,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383045020] [2021-06-11 11:29:17,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:29:17,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:29:17,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:29:17,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:29:17,204 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:29:17,205 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 595 transitions, 6531 flow. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:29:17,205 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:29:17,205 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:29:17,205 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:29:25,523 INFO L129 PetriNetUnfolder]: 61798/83278 cut-off events. [2021-06-11 11:29:25,523 INFO L130 PetriNetUnfolder]: For 126474/153581 co-relation queries the response was YES. [2021-06-11 11:29:25,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 394874 conditions, 83278 events. 61798/83278 cut-off events. For 126474/153581 co-relation queries the response was YES. Maximal size of possible extension queue 5078. Compared 546252 event pairs, 8595 based on Foata normal form. 1103/84246 useless extension candidates. Maximal degree in co-relation 392590. Up to 43417 conditions per place. [2021-06-11 11:29:26,041 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 155 selfloop transitions, 778 changer transitions 0/948 dead transitions. [2021-06-11 11:29:26,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 948 transitions, 11823 flow [2021-06-11 11:29:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:29:26,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:29:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2021-06-11 11:29:26,046 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6156462585034014 [2021-06-11 11:29:26,046 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2021-06-11 11:29:26,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2021-06-11 11:29:26,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:29:26,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2021-06-11 11:29:26,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2021-06-11 11:29:26,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:29:26,048 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:29:26,048 INFO L185 Difference]: Start difference. First operand has 64 places, 595 transitions, 6531 flow. Second operand 7 states and 362 transitions. [2021-06-11 11:29:26,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 948 transitions, 11823 flow [2021-06-11 11:29:26,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 948 transitions, 11488 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-06-11 11:29:26,128 INFO L241 Difference]: Finished difference. Result has 70 places, 915 transitions, 12057 flow [2021-06-11 11:29:26,129 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=6282, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=595, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=505, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12057, PETRI_PLACES=70, PETRI_TRANSITIONS=915} [2021-06-11 11:29:26,129 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2021-06-11 11:29:26,129 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:29:26,129 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 915 transitions, 12057 flow [2021-06-11 11:29:26,129 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 915 transitions, 12057 flow [2021-06-11 11:29:26,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 915 transitions, 12057 flow [2021-06-11 11:29:33,018 INFO L129 PetriNetUnfolder]: 54892/74091 cut-off events. [2021-06-11 11:29:33,019 INFO L130 PetriNetUnfolder]: For 225392/239842 co-relation queries the response was YES. [2021-06-11 11:29:33,202 INFO L84 FinitePrefix]: Finished finitePrefix Result has 377026 conditions, 74091 events. 54892/74091 cut-off events. For 225392/239842 co-relation queries the response was YES. Maximal size of possible extension queue 4613. Compared 490085 event pairs, 4794 based on Foata normal form. 2240/76071 useless extension candidates. Maximal degree in co-relation 375240. Up to 43417 conditions per place. [2021-06-11 11:29:33,613 INFO L151 LiptonReduction]: Number of co-enabled transitions 3778 [2021-06-11 11:30:05,313 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:30:05,313 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:30:05,313 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39184 [2021-06-11 11:30:05,314 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 915 transitions, 12057 flow [2021-06-11 11:30:05,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:30:05,314 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:30:05,314 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] [2021-06-11 11:30:05,314 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 11:30:05,314 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:30:05,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:30:05,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1076297325, now seen corresponding path program 7 times [2021-06-11 11:30:05,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:30:05,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436466090] [2021-06-11 11:30:05,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:30:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:30:05,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:30:05,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:30:05,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:30:05,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:30:05,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:30:05,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:30:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:30:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:30:05,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436466090] [2021-06-11 11:30:05,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:30:05,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:30:05,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050133523] [2021-06-11 11:30:05,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:30:05,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:30:05,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:30:05,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:30:05,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:30:05,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 915 transitions, 12057 flow. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:30:05,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:30:05,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:30:05,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:30:18,123 INFO L129 PetriNetUnfolder]: 65685/88588 cut-off events. [2021-06-11 11:30:18,123 INFO L130 PetriNetUnfolder]: For 267052/312725 co-relation queries the response was YES. [2021-06-11 11:30:18,350 INFO L84 FinitePrefix]: Finished finitePrefix Result has 525306 conditions, 88588 events. 65685/88588 cut-off events. For 267052/312725 co-relation queries the response was YES. Maximal size of possible extension queue 5417. Compared 584554 event pairs, 7398 based on Foata normal form. 1642/90104 useless extension candidates. Maximal degree in co-relation 523045. Up to 46797 conditions per place. [2021-06-11 11:30:18,743 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 155 selfloop transitions, 1054 changer transitions 0/1224 dead transitions. [2021-06-11 11:30:18,743 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 1224 transitions, 18842 flow [2021-06-11 11:30:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:30:18,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:30:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2021-06-11 11:30:18,749 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6156462585034014 [2021-06-11 11:30:18,749 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2021-06-11 11:30:18,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2021-06-11 11:30:18,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:30:18,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2021-06-11 11:30:18,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2021-06-11 11:30:18,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:30:18,751 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:30:18,751 INFO L185 Difference]: Start difference. First operand has 70 places, 915 transitions, 12057 flow. Second operand 7 states and 362 transitions. [2021-06-11 11:30:18,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 1224 transitions, 18842 flow [2021-06-11 11:30:18,997 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 1224 transitions, 18834 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 11:30:19,012 INFO L241 Difference]: Finished difference. Result has 76 places, 1191 transitions, 18871 flow [2021-06-11 11:30:19,012 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=12049, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=778, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=18871, PETRI_PLACES=76, PETRI_TRANSITIONS=1191} [2021-06-11 11:30:19,012 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 23 predicate places. [2021-06-11 11:30:19,013 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:30:19,013 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 1191 transitions, 18871 flow [2021-06-11 11:30:19,013 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 1191 transitions, 18871 flow [2021-06-11 11:30:19,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 1191 transitions, 18871 flow [2021-06-11 11:30:27,903 INFO L129 PetriNetUnfolder]: 58314/78449 cut-off events. [2021-06-11 11:30:27,904 INFO L130 PetriNetUnfolder]: For 339854/357021 co-relation queries the response was YES. [2021-06-11 11:30:28,116 INFO L84 FinitePrefix]: Finished finitePrefix Result has 468263 conditions, 78449 events. 58314/78449 cut-off events. For 339854/357021 co-relation queries the response was YES. Maximal size of possible extension queue 4799. Compared 517002 event pairs, 5913 based on Foata normal form. 3313/81630 useless extension candidates. Maximal degree in co-relation 466431. Up to 46797 conditions per place. [2021-06-11 11:30:28,555 INFO L151 LiptonReduction]: Number of co-enabled transitions 4164 [2021-06-11 11:31:08,712 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:31:08,712 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:31:08,712 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 49699 [2021-06-11 11:31:08,713 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 1191 transitions, 18871 flow [2021-06-11 11:31:08,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:31:08,713 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:31:08,713 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] [2021-06-11 11:31:08,713 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 11:31:08,713 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:31:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:31:08,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1170918489, now seen corresponding path program 8 times [2021-06-11 11:31:08,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:31:08,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758162944] [2021-06-11 11:31:08,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:31:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:31:08,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:31:08,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:31:08,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:31:08,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:31:08,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:31:08,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:31:08,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:31:08,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:31:08,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758162944] [2021-06-11 11:31:08,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:31:08,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:31:08,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33951231] [2021-06-11 11:31:08,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:31:08,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:31:08,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:31:08,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:31:08,744 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:31:08,744 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 1191 transitions, 18871 flow. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:31:08,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:31:08,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:31:08,745 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:31:25,580 INFO L129 PetriNetUnfolder]: 69937/94449 cut-off events. [2021-06-11 11:31:25,580 INFO L130 PetriNetUnfolder]: For 423523/477614 co-relation queries the response was YES. [2021-06-11 11:31:25,840 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639553 conditions, 94449 events. 69937/94449 cut-off events. For 423523/477614 co-relation queries the response was YES. Maximal size of possible extension queue 5837. Compared 631035 event pairs, 7882 based on Foata normal form. 1989/96293 useless extension candidates. Maximal degree in co-relation 637394. Up to 50547 conditions per place. [2021-06-11 11:31:26,278 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 155 selfloop transitions, 1456 changer transitions 0/1626 dead transitions. [2021-06-11 11:31:26,279 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 1626 transitions, 29491 flow [2021-06-11 11:31:26,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:31:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:31:26,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2021-06-11 11:31:26,280 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6156462585034014 [2021-06-11 11:31:26,280 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2021-06-11 11:31:26,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2021-06-11 11:31:26,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:31:26,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2021-06-11 11:31:26,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2021-06-11 11:31:26,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:31:26,282 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:31:26,282 INFO L185 Difference]: Start difference. First operand has 76 places, 1191 transitions, 18871 flow. Second operand 7 states and 362 transitions. [2021-06-11 11:31:26,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 1626 transitions, 29491 flow [2021-06-11 11:31:27,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 1626 transitions, 27842 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 11:31:27,540 INFO L241 Difference]: Finished difference. Result has 79 places, 1594 transitions, 28155 flow [2021-06-11 11:31:27,540 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=17624, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1053, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=28155, PETRI_PLACES=79, PETRI_TRANSITIONS=1594} [2021-06-11 11:31:27,541 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 26 predicate places. [2021-06-11 11:31:27,541 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:31:27,541 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 1594 transitions, 28155 flow [2021-06-11 11:31:27,541 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 1594 transitions, 28155 flow [2021-06-11 11:31:27,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 1594 transitions, 28155 flow [2021-06-11 11:31:38,768 INFO L129 PetriNetUnfolder]: 62034/82759 cut-off events. [2021-06-11 11:31:38,768 INFO L130 PetriNetUnfolder]: For 498711/519047 co-relation queries the response was YES. [2021-06-11 11:31:39,000 INFO L84 FinitePrefix]: Finished finitePrefix Result has 530515 conditions, 82759 events. 62034/82759 cut-off events. For 498711/519047 co-relation queries the response was YES. Maximal size of possible extension queue 5070. Compared 539046 event pairs, 6805 based on Foata normal form. 5102/87632 useless extension candidates. Maximal degree in co-relation 528870. Up to 50547 conditions per place. [2021-06-11 11:31:39,614 INFO L151 LiptonReduction]: Number of co-enabled transitions 4748 [2021-06-11 11:32:06,198 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:32:06,199 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:32:06,199 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 38658 [2021-06-11 11:32:06,199 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 1594 transitions, 28155 flow [2021-06-11 11:32:06,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:32:06,200 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:32:06,200 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] [2021-06-11 11:32:06,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 11:32:06,200 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:32:06,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:32:06,200 INFO L82 PathProgramCache]: Analyzing trace with hash -8558711, now seen corresponding path program 9 times [2021-06-11 11:32:06,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:32:06,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145983461] [2021-06-11 11:32:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:32:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:32:06,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:32:06,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:32:06,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:32:06,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:32:06,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:32:06,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:32:06,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:32:06,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:32:06,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145983461] [2021-06-11 11:32:06,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:32:06,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-11 11:32:06,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923440066] [2021-06-11 11:32:06,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-11 11:32:06,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:32:06,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-11 11:32:06,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-11 11:32:06,231 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:32:06,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 1594 transitions, 28155 flow. Second operand has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:32:06,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:32:06,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:32:06,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:32:29,602 INFO L129 PetriNetUnfolder]: 74260/100740 cut-off events. [2021-06-11 11:32:29,602 INFO L130 PetriNetUnfolder]: For 621411/672614 co-relation queries the response was YES. [2021-06-11 11:32:29,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 720606 conditions, 100740 events. 74260/100740 cut-off events. For 621411/672614 co-relation queries the response was YES. Maximal size of possible extension queue 6285. Compared 687329 event pairs, 7778 based on Foata normal form. 2348/102951 useless extension candidates. Maximal degree in co-relation 718419. Up to 54418 conditions per place. [2021-06-11 11:32:30,500 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 155 selfloop transitions, 2009 changer transitions 0/2179 dead transitions. [2021-06-11 11:32:30,501 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 2179 transitions, 43539 flow [2021-06-11 11:32:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-11 11:32:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-06-11 11:32:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 362 transitions. [2021-06-11 11:32:30,502 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6156462585034014 [2021-06-11 11:32:30,502 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 362 transitions. [2021-06-11 11:32:30,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 362 transitions. [2021-06-11 11:32:30,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:32:30,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 362 transitions. [2021-06-11 11:32:30,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 51.714285714285715) internal successors, (362), 7 states have internal predecessors, (362), 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) [2021-06-11 11:32:30,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:32:30,504 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 84.0) internal successors, (672), 8 states have internal predecessors, (672), 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) [2021-06-11 11:32:30,504 INFO L185 Difference]: Start difference. First operand has 79 places, 1594 transitions, 28155 flow. Second operand 7 states and 362 transitions. [2021-06-11 11:32:30,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 2179 transitions, 43539 flow [2021-06-11 11:32:32,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 2179 transitions, 41337 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 11:32:32,173 INFO L241 Difference]: Finished difference. Result has 82 places, 2148 transitions, 42031 flow [2021-06-11 11:32:32,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=26424, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1590, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1451, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=42031, PETRI_PLACES=82, PETRI_TRANSITIONS=2148} [2021-06-11 11:32:32,174 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 29 predicate places. [2021-06-11 11:32:32,174 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:32:32,175 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 2148 transitions, 42031 flow [2021-06-11 11:32:32,175 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 2148 transitions, 42031 flow [2021-06-11 11:32:32,189 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 82 places, 2148 transitions, 42031 flow [2021-06-11 11:32:47,322 INFO L129 PetriNetUnfolder]: 65771/88138 cut-off events. [2021-06-11 11:32:47,323 INFO L130 PetriNetUnfolder]: For 761885/785796 co-relation queries the response was YES. [2021-06-11 11:32:47,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 602499 conditions, 88138 events. 65771/88138 cut-off events. For 761885/785796 co-relation queries the response was YES. Maximal size of possible extension queue 5414. Compared 583690 event pairs, 7100 based on Foata normal form. 5733/93644 useless extension candidates. Maximal degree in co-relation 600688. Up to 54418 conditions per place. [2021-06-11 11:32:48,214 INFO L151 LiptonReduction]: Number of co-enabled transitions 5422 [2021-06-11 11:33:31,358 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:33:31,358 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:33:31,358 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59184 [2021-06-11 11:33:31,358 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 2148 transitions, 42031 flow [2021-06-11 11:33:31,359 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 42.285714285714285) internal successors, (296), 7 states have internal predecessors, (296), 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) [2021-06-11 11:33:31,359 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:33:31,359 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] [2021-06-11 11:33:31,359 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 11:33:31,359 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:33:31,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:33:31,359 INFO L82 PathProgramCache]: Analyzing trace with hash -898898043, now seen corresponding path program 10 times [2021-06-11 11:33:31,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:33:31,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428619744] [2021-06-11 11:33:31,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:33:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:33:31,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:33:31,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:33:31,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:33:31,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:33:31,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:33:31,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:33:31,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:33:31,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:33:31,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:33:31,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:33:31,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:33:31,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428619744] [2021-06-11 11:33:31,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:33:31,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:33:31,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558211792] [2021-06-11 11:33:31,381 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:33:31,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:33:31,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:33:31,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:33:31,382 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:33:31,382 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 2148 transitions, 42031 flow. Second operand has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:33:31,382 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:33:31,382 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:33:31,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:34:03,675 INFO L129 PetriNetUnfolder]: 79800/108688 cut-off events. [2021-06-11 11:34:03,676 INFO L130 PetriNetUnfolder]: For 902214/954731 co-relation queries the response was YES. [2021-06-11 11:34:04,020 INFO L84 FinitePrefix]: Finished finitePrefix Result has 821619 conditions, 108688 events. 79800/108688 cut-off events. For 902214/954731 co-relation queries the response was YES. Maximal size of possible extension queue 6948. Compared 755404 event pairs, 8337 based on Foata normal form. 2702/111260 useless extension candidates. Maximal degree in co-relation 819518. Up to 58497 conditions per place. [2021-06-11 11:34:04,585 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 522 selfloop transitions, 2268 changer transitions 0/2805 dead transitions. [2021-06-11 11:34:04,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 2805 transitions, 61443 flow [2021-06-11 11:34:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:34:04,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:34:04,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-06-11 11:34:04,586 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2021-06-11 11:34:04,586 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-06-11 11:34:04,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-06-11 11:34:04,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:34:04,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-06-11 11:34:04,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2021-06-11 11:34:04,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:34:04,587 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:34:04,587 INFO L185 Difference]: Start difference. First operand has 82 places, 2148 transitions, 42031 flow. Second operand 6 states and 307 transitions. [2021-06-11 11:34:04,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 2805 transitions, 61443 flow [2021-06-11 11:34:07,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 2805 transitions, 58630 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-06-11 11:34:07,722 INFO L241 Difference]: Finished difference. Result has 84 places, 2756 transitions, 58223 flow [2021-06-11 11:34:07,723 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=39829, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1660, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=485, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=58223, PETRI_PLACES=84, PETRI_TRANSITIONS=2756} [2021-06-11 11:34:07,723 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 31 predicate places. [2021-06-11 11:34:07,723 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:34:07,723 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 2756 transitions, 58223 flow [2021-06-11 11:34:07,723 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 2756 transitions, 58223 flow [2021-06-11 11:34:07,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 2756 transitions, 58223 flow [2021-06-11 11:34:27,530 INFO L129 PetriNetUnfolder]: 70361/95010 cut-off events. [2021-06-11 11:34:27,530 INFO L130 PetriNetUnfolder]: For 1099479/1118215 co-relation queries the response was YES. [2021-06-11 11:34:27,816 INFO L84 FinitePrefix]: Finished finitePrefix Result has 660947 conditions, 95010 events. 70361/95010 cut-off events. For 1099479/1118215 co-relation queries the response was YES. Maximal size of possible extension queue 5837. Compared 643485 event pairs, 5141 based on Foata normal form. 6109/100994 useless extension candidates. Maximal degree in co-relation 659260. Up to 58497 conditions per place. [2021-06-11 11:34:28,544 INFO L151 LiptonReduction]: Number of co-enabled transitions 6308 [2021-06-11 11:35:07,493 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:35:07,493 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:35:07,493 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 59770 [2021-06-11 11:35:07,494 INFO L480 AbstractCegarLoop]: Abstraction has has 84 places, 2756 transitions, 58223 flow [2021-06-11 11:35:07,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:35:07,494 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:35:07,494 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] [2021-06-11 11:35:07,494 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 11:35:07,494 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:35:07,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:35:07,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1524009331, now seen corresponding path program 11 times [2021-06-11 11:35:07,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:35:07,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495336612] [2021-06-11 11:35:07,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:35:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:35:07,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:35:07,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:35:07,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:35:07,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:35:07,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:35:07,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:35:07,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:35:07,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:35:07,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:35:07,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:35:07,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:35:07,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495336612] [2021-06-11 11:35:07,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:35:07,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:35:07,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974508056] [2021-06-11 11:35:07,533 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:35:07,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:35:07,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:35:07,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:35:07,534 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:35:07,534 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 2756 transitions, 58223 flow. Second operand has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:35:07,534 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:35:07,534 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:35:07,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:35:51,229 INFO L129 PetriNetUnfolder]: 84958/116182 cut-off events. [2021-06-11 11:35:51,229 INFO L130 PetriNetUnfolder]: For 1202830/1255623 co-relation queries the response was YES. [2021-06-11 11:35:51,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 894216 conditions, 116182 events. 84958/116182 cut-off events. For 1202830/1255623 co-relation queries the response was YES. Maximal size of possible extension queue 7581. Compared 822305 event pairs, 9102 based on Foata normal form. 2692/118737 useless extension candidates. Maximal degree in co-relation 892168. Up to 62296 conditions per place. [2021-06-11 11:35:52,180 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 522 selfloop transitions, 2873 changer transitions 0/3410 dead transitions. [2021-06-11 11:35:52,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 3410 transitions, 79817 flow [2021-06-11 11:35:52,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:35:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:35:52,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-06-11 11:35:52,181 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2021-06-11 11:35:52,181 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-06-11 11:35:52,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-06-11 11:35:52,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:35:52,181 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-06-11 11:35:52,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2021-06-11 11:35:52,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:35:52,182 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:35:52,183 INFO L185 Difference]: Start difference. First operand has 84 places, 2756 transitions, 58223 flow. Second operand 6 states and 307 transitions. [2021-06-11 11:35:52,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 3410 transitions, 79817 flow [2021-06-11 11:35:55,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 3410 transitions, 76889 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 11:35:55,427 INFO L241 Difference]: Finished difference. Result has 87 places, 3364 transitions, 76909 flow [2021-06-11 11:35:55,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=55900, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=76909, PETRI_PLACES=87, PETRI_TRANSITIONS=3364} [2021-06-11 11:35:55,429 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 34 predicate places. [2021-06-11 11:35:55,429 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:35:55,429 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 3364 transitions, 76909 flow [2021-06-11 11:35:55,429 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 3364 transitions, 76909 flow [2021-06-11 11:35:55,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 3364 transitions, 76909 flow [2021-06-11 11:36:22,311 INFO L129 PetriNetUnfolder]: 74617/101462 cut-off events. [2021-06-11 11:36:22,311 INFO L130 PetriNetUnfolder]: For 1433354/1446187 co-relation queries the response was YES. [2021-06-11 11:36:22,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743481 conditions, 101462 events. 74617/101462 cut-off events. For 1433354/1446187 co-relation queries the response was YES. Maximal size of possible extension queue 6360. Compared 703247 event pairs, 4830 based on Foata normal form. 5255/106661 useless extension candidates. Maximal degree in co-relation 741810. Up to 62296 conditions per place. [2021-06-11 11:36:23,286 INFO L151 LiptonReduction]: Number of co-enabled transitions 7086 [2021-06-11 11:37:52,133 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:37:52,133 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:37:52,133 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 116704 [2021-06-11 11:37:52,134 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 3364 transitions, 76909 flow [2021-06-11 11:37:52,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:37:52,134 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:37:52,134 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] [2021-06-11 11:37:52,134 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 11:37:52,134 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:37:52,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:37:52,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1382015415, now seen corresponding path program 12 times [2021-06-11 11:37:52,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:37:52,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538245252] [2021-06-11 11:37:52,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:37:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:37:52,157 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:37:52,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:37:52,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:37:52,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:37:52,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:37:52,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:37:52,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:37:52,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:37:52,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:37:52,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:37:52,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:37:52,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538245252] [2021-06-11 11:37:52,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:37:52,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:37:52,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816883197] [2021-06-11 11:37:52,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:37:52,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:37:52,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:37:52,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:37:52,173 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:37:52,173 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 3364 transitions, 76909 flow. Second operand has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:37:52,173 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:37:52,173 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:37:52,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:38:50,950 INFO L129 PetriNetUnfolder]: 89228/122467 cut-off events. [2021-06-11 11:38:50,950 INFO L130 PetriNetUnfolder]: For 1530897/1586086 co-relation queries the response was YES. [2021-06-11 11:38:51,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 984590 conditions, 122467 events. 89228/122467 cut-off events. For 1530897/1586086 co-relation queries the response was YES. Maximal size of possible extension queue 8120. Compared 879314 event pairs, 8348 based on Foata normal form. 2336/124662 useless extension candidates. Maximal degree in co-relation 982485. Up to 65376 conditions per place. [2021-06-11 11:38:51,974 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 522 selfloop transitions, 3326 changer transitions 0/3863 dead transitions. [2021-06-11 11:38:51,975 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 3863 transitions, 96393 flow [2021-06-11 11:38:51,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:38:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:38:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-06-11 11:38:51,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2021-06-11 11:38:51,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-06-11 11:38:51,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-06-11 11:38:51,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:38:51,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-06-11 11:38:51,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2021-06-11 11:38:51,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:38:51,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:38:51,977 INFO L185 Difference]: Start difference. First operand has 87 places, 3364 transitions, 76909 flow. Second operand 6 states and 307 transitions. [2021-06-11 11:38:51,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 3863 transitions, 96393 flow [2021-06-11 11:38:55,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 3863 transitions, 93011 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 11:38:55,485 INFO L241 Difference]: Finished difference. Result has 90 places, 3821 transitions, 93073 flow [2021-06-11 11:38:55,486 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=73879, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2865, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93073, PETRI_PLACES=90, PETRI_TRANSITIONS=3821} [2021-06-11 11:38:55,487 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 37 predicate places. [2021-06-11 11:38:55,487 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:38:55,487 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 3821 transitions, 93073 flow [2021-06-11 11:38:55,487 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 3821 transitions, 93073 flow [2021-06-11 11:38:55,515 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 3821 transitions, 93073 flow [2021-06-11 11:39:27,670 INFO L129 PetriNetUnfolder]: 78133/106546 cut-off events. [2021-06-11 11:39:27,670 INFO L130 PetriNetUnfolder]: For 1782317/1800937 co-relation queries the response was YES. [2021-06-11 11:39:28,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 819727 conditions, 106546 events. 78133/106546 cut-off events. For 1782317/1800937 co-relation queries the response was YES. Maximal size of possible extension queue 6568. Compared 746422 event pairs, 5580 based on Foata normal form. 6191/112669 useless extension candidates. Maximal degree in co-relation 817705. Up to 65376 conditions per place. [2021-06-11 11:39:28,861 INFO L151 LiptonReduction]: Number of co-enabled transitions 7316 [2021-06-11 11:40:55,741 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 11:40:55,741 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 11:40:55,741 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120254 [2021-06-11 11:40:55,742 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 3821 transitions, 93073 flow [2021-06-11 11:40:55,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:40:55,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 11:40:55,742 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] [2021-06-11 11:40:55,742 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 11:40:55,742 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 11:40:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 11:40:55,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1297963173, now seen corresponding path program 13 times [2021-06-11 11:40:55,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 11:40:55,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121928885] [2021-06-11 11:40:55,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 11:40:55,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 11:40:55,770 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:40:55,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 11:40:55,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:40:55,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:40:55,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:40:55,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:40:55,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:40:55,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-06-11 11:40:55,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 11:40:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 11:40:55,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 11:40:55,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121928885] [2021-06-11 11:40:55,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 11:40:55,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-11 11:40:55,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72873941] [2021-06-11 11:40:55,788 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-11 11:40:55,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 11:40:55,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-11 11:40:55,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-06-11 11:40:55,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 84 [2021-06-11 11:40:55,788 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 3821 transitions, 93073 flow. Second operand has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2021-06-11 11:40:55,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 11:40:55,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 84 [2021-06-11 11:40:55,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 11:42:09,768 INFO L129 PetriNetUnfolder]: 93389/128663 cut-off events. [2021-06-11 11:42:09,768 INFO L130 PetriNetUnfolder]: For 1955812/2016116 co-relation queries the response was YES. [2021-06-11 11:42:10,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1078236 conditions, 128663 events. 93389/128663 cut-off events. For 1955812/2016116 co-relation queries the response was YES. Maximal size of possible extension queue 8678. Compared 938056 event pairs, 8473 based on Foata normal form. 2704/131236 useless extension candidates. Maximal degree in co-relation 1076225. Up to 68454 conditions per place. [2021-06-11 11:42:10,874 INFO L132 encePairwiseOnDemand]: 69/84 looper letters, 522 selfloop transitions, 3810 changer transitions 0/4347 dead transitions. [2021-06-11 11:42:10,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 4347 transitions, 114926 flow [2021-06-11 11:42:10,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-11 11:42:10,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-06-11 11:42:10,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 307 transitions. [2021-06-11 11:42:10,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6091269841269841 [2021-06-11 11:42:10,875 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 307 transitions. [2021-06-11 11:42:10,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 307 transitions. [2021-06-11 11:42:10,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 11:42:10,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 307 transitions. [2021-06-11 11:42:10,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 51.166666666666664) internal successors, (307), 6 states have internal predecessors, (307), 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) [2021-06-11 11:42:10,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:42:10,876 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 84.0) internal successors, (588), 7 states have internal predecessors, (588), 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) [2021-06-11 11:42:10,877 INFO L185 Difference]: Start difference. First operand has 90 places, 3821 transitions, 93073 flow. Second operand 6 states and 307 transitions. [2021-06-11 11:42:10,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 4347 transitions, 114926 flow [2021-06-11 11:42:14,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 4347 transitions, 111061 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-06-11 11:42:14,466 INFO L241 Difference]: Finished difference. Result has 93 places, 4307 transitions, 111724 flow [2021-06-11 11:42:14,468 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=84, PETRI_DIFFERENCE_MINUEND_FLOW=88975, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3795, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111724, PETRI_PLACES=93, PETRI_TRANSITIONS=4307} [2021-06-11 11:42:14,468 INFO L343 CegarLoopForPetriNet]: 53 programPoint places, 40 predicate places. [2021-06-11 11:42:14,468 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 11:42:14,468 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 4307 transitions, 111724 flow [2021-06-11 11:42:14,468 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 4307 transitions, 111724 flow [2021-06-11 11:42:14,502 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 4307 transitions, 111724 flow Received shutdown request... [2021-06-11 11:42:27,388 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 11:42:27,388 WARN L545 AbstractCegarLoop]: Verification canceled [2021-06-11 11:42:27,390 WARN L224 ceAbstractionStarter]: Timeout [2021-06-11 11:42:27,391 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 11:42:27 BasicIcfg [2021-06-11 11:42:27,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 11:42:27,391 INFO L168 Benchmark]: Toolchain (without parser) took 838999.97 ms. Allocated memory was 350.2 MB in the beginning and 12.9 GB in the end (delta: 12.6 GB). Free memory was 329.9 MB in the beginning and 9.2 GB in the end (delta: -8.8 GB). Peak memory consumption was 4.1 GB. Max. memory is 16.0 GB. [2021-06-11 11:42:27,391 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 331.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 11:42:27,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.85 ms. Allocated memory is still 350.2 MB. Free memory was 329.7 MB in the beginning and 328.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 11:42:27,392 INFO L168 Benchmark]: Boogie Preprocessor took 12.04 ms. Allocated memory is still 350.2 MB. Free memory was 328.3 MB in the beginning and 327.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 11:42:27,392 INFO L168 Benchmark]: RCFGBuilder took 215.06 ms. Allocated memory is still 350.2 MB. Free memory was 327.2 MB in the beginning and 309.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-11 11:42:27,392 INFO L168 Benchmark]: TraceAbstraction took 838749.50 ms. Allocated memory was 350.2 MB in the beginning and 12.9 GB in the end (delta: 12.6 GB). Free memory was 309.0 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. [2021-06-11 11:42:27,393 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 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 331.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 19.85 ms. Allocated memory is still 350.2 MB. Free memory was 329.7 MB in the beginning and 328.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 12.04 ms. Allocated memory is still 350.2 MB. Free memory was 328.3 MB in the beginning and 327.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 215.06 ms. Allocated memory is still 350.2 MB. Free memory was 327.2 MB in the beginning and 309.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 838749.50 ms. Allocated memory was 350.2 MB in the beginning and 12.9 GB in the end (delta: 12.6 GB). Free memory was 309.0 MB in the beginning and 9.2 GB in the end (delta: -8.9 GB). Peak memory consumption was 4.0 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1437.2ms, 75 PlacesBefore, 53 PlacesAfterwards, 53 TransitionsBefore, 31 TransitionsAfterwards, 1542 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 21 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 22 TotalNumberOfCompositions, 2616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1101, positive: 1027, positive conditional: 0, positive unconditional: 1027, negative: 74, negative conditional: 0, negative unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 892, positive: 845, positive conditional: 0, positive unconditional: 845, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 892, positive: 845, positive conditional: 0, positive unconditional: 845, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 892, positive: 704, positive conditional: 0, positive unconditional: 704, negative: 188, negative conditional: 0, negative unconditional: 188, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 188, positive: 141, positive conditional: 0, positive unconditional: 141, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 490, positive: 340, positive conditional: 0, positive unconditional: 340, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1101, positive: 182, positive conditional: 0, positive unconditional: 182, negative: 27, negative conditional: 0, negative unconditional: 27, unknown: 892, unknown conditional: 0, unknown unconditional: 892] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 404.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 44 TransitionsBefore, 44 TransitionsAfterwards, 404 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4980.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4392.9ms, 54 PlacesBefore, 54 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 956 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7818.6ms, 61 PlacesBefore, 61 PlacesAfterwards, 520 TransitionsBefore, 520 TransitionsAfterwards, 2574 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10130.7ms, 64 PlacesBefore, 64 PlacesAfterwards, 595 TransitionsBefore, 595 TransitionsAfterwards, 2750 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39183.9ms, 70 PlacesBefore, 70 PlacesAfterwards, 915 TransitionsBefore, 915 TransitionsAfterwards, 3778 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 49699.5ms, 76 PlacesBefore, 76 PlacesAfterwards, 1191 TransitionsBefore, 1191 TransitionsAfterwards, 4164 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38657.7ms, 79 PlacesBefore, 79 PlacesAfterwards, 1594 TransitionsBefore, 1594 TransitionsAfterwards, 4748 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59183.1ms, 82 PlacesBefore, 82 PlacesAfterwards, 2148 TransitionsBefore, 2148 TransitionsAfterwards, 5422 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 59769.7ms, 84 PlacesBefore, 84 PlacesAfterwards, 2756 TransitionsBefore, 2756 TransitionsAfterwards, 6308 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 116704.5ms, 87 PlacesBefore, 87 PlacesAfterwards, 3364 TransitionsBefore, 3364 TransitionsAfterwards, 7086 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 120254.1ms, 90 PlacesBefore, 90 PlacesAfterwards, 3821 TransitionsBefore, 3821 TransitionsAfterwards, 7316 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, 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: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1236, Positive cache size: 1189, Positive conditional cache size: 0, Positive unconditional cache size: 1189, Negative cache size: 47, Negative conditional cache size: 0, Negative unconditional cache size: 47 - TimeoutResultAtElement [Line: 125]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 125). Cancelled while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 93 places, 4307 transitions, 111724 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 93 places, 4307 transitions, 111724 flow,while PetriNetUnfolder was constructing finite prefix that currently has 295970 conditions, 33907 events (25090/33906 cut-off events. For 902167/926309 co-relation queries the response was YES. Maximal size of possible extension queue 6532. Compared 249541 event pairs, 2182 based on Foata normal form. 3453/43715 useless extension candidates. Maximal degree in co-relation 295927. Up to 17753 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 838623.3ms, OverallIterations: 13, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 312376.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1495.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 27 SDtfs, 52 SDslu, 22 SDs, 0 SdLazy, 2461 SolverSat, 476 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1002.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 185.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=111724occurred in iteration=13, InterpolantAutomatonStates: 82, 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: 18.3ms SsaConstructionTime, 139.4ms SatisfiabilityAnalysisTime, 373.8ms InterpolantComputationTime, 403 NumberOfCodeBlocks, 403 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 390 ConstructedInterpolants, 0 QuantifiedInterpolants, 1043 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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