/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 09:55:55,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 09:55:55,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 09:55:55,646 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 09:55:55,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 09:55:55,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 09:55:55,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 09:55:55,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 09:55:55,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 09:55:55,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 09:55:55,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 09:55:55,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 09:55:55,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 09:55:55,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 09:55:55,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 09:55:55,655 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 09:55:55,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 09:55:55,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 09:55:55,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 09:55:55,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 09:55:55,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 09:55:55,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 09:55:55,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 09:55:55,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 09:55:55,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 09:55:55,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 09:55:55,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 09:55:55,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 09:55:55,669 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-NoLbe.epf [2021-07-01 09:55:55,683 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 09:55:55,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 09:55:55,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 09:55:55,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 09:55:55,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 09:55:55,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 09:55:55,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:55:55,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-07-01 09:55:55,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 09:55:55,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 09:55:55,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 09:55:55,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 09:55:55,992 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 09:55:55,993 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 09:55:55,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized05.bpl [2021-07-01 09:55:55,994 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-customized05.bpl' [2021-07-01 09:55:56,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 09:55:56,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 09:55:56,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 09:55:56,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 09:55:56,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 09:55:56,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 09:55:56,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 09:55:56,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 09:55:56,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 09:55:56,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,063 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/1) ... [2021-07-01 09:55:56,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 09:55:56,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 09:55:56,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 09:55:56,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 09:55:56,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (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 [2021-07-01 09:55:56,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 09:55:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 09:55:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 09:55:56,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 09:55:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 09:55:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 09:55:56,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 09:55:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 09:55:56,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 09:55:56,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 09:55:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 09:55:56,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 09:55:56,119 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 09:55:56,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 09:55:56,314 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 09:55:56,324 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadWithAssertEXIT is neither atomic block end nor error location. [2021-07-01 09:55:56,324 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: DeviceThreadEXIT is neither atomic block end nor error location. [2021-07-01 09:55:56,326 INFO L202 PluginConnector]: Adding new model bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:55:56 BoogieIcfgContainer [2021-07-01 09:55:56,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 09:55:56,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 09:55:56,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 09:55:56,338 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 09:55:56,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:55:56" (1/2) ... [2021-07-01 09:55:56,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5009a735 and model type bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 09:55:56, skipping insertion in model container [2021-07-01 09:55:56,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:55:56" (2/2) ... [2021-07-01 09:55:56,340 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-customized05.bpl [2021-07-01 09:55:56,344 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 09:55:56,345 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 09:55:56,345 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 09:55:56,402 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 09:55:56,431 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-07-01 09:55:56,453 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:55:56,453 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:55:56,454 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:55:56,454 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:55:56,454 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:55:56,454 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:55:56,454 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:55:56,454 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 09:55:56,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 39 transitions, 108 flow [2021-07-01 09:55:56,479 INFO L129 PetriNetUnfolder]: 5/33 cut-off events. [2021-07-01 09:55:56,479 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 33 events. 5/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 61 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-07-01 09:55:56,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 39 transitions, 108 flow [2021-07-01 09:55:56,484 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-07-01 09:55:56,484 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-07-01 09:55:56,485 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,485 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 09:55:56,486 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 09:55:56,489 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:55:56,490 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:55:56,490 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:55:56,490 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:55:56,490 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:55:56,490 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:55:56,490 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:55:56,490 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 09:55:56,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 39 transitions, 108 flow [2021-07-01 09:55:56,500 INFO L129 PetriNetUnfolder]: 5/33 cut-off events. [2021-07-01 09:55:56,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 33 events. 5/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 61 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 38. Up to 2 conditions per place. [2021-07-01 09:55:56,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 39 transitions, 108 flow [2021-07-01 09:55:56,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 33 transitions, 84 flow [2021-07-01 09:55:56,506 INFO L129 PetriNetUnfolder]: 1/15 cut-off events. [2021-07-01 09:55:56,506 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:56,506 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:56,507 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:56,507 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:56,511 INFO L82 PathProgramCache]: Analyzing trace with hash -851249942, now seen corresponding path program 1 times [2021-07-01 09:55:56,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:56,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621784006] [2021-07-01 09:55:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:56,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:56,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:56,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:56,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621784006] [2021-07-01 09:55:56,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621784006] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:56,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:56,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 09:55:56,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279099421] [2021-07-01 09:55:56,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-01 09:55:56,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:56,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-01 09:55:56,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-01 09:55:56,630 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 39 [2021-07-01 09:55:56,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 33 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-07-01 09:55:56,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:56,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 39 [2021-07-01 09:55:56,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:56,797 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([104] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][25], [DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, 19#L23true, DeviceThreadThread1of1ForFork5NotInUse, 20#L59true, DeviceThreadThread1of1ForFork4NotInUse, 7#L70-2true, 56#true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse]) [2021-07-01 09:55:56,797 INFO L384 tUnfolder$Statistics]: this new event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,797 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,797 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,797 INFO L387 tUnfolder$Statistics]: existing Event has 11 ancestors and is cut-off event [2021-07-01 09:55:56,800 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [7#L70-2true, 42#L24true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 26#L59true]) [2021-07-01 09:55:56,800 INFO L384 tUnfolder$Statistics]: this new event has 12 ancestors and is not cut-off event [2021-07-01 09:55:56,800 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,800 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is not cut-off event [2021-07-01 09:55:56,800 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is not cut-off event [2021-07-01 09:55:56,835 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,836 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,836 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,836 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,836 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,836 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [7#L70-2true, 42#L24true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 26#L59true]) [2021-07-01 09:55:56,837 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,837 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,837 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,837 INFO L387 tUnfolder$Statistics]: existing Event has 12 ancestors and is cut-off event [2021-07-01 09:55:56,837 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,841 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,841 INFO L384 tUnfolder$Statistics]: this new event has 13 ancestors and is not cut-off event [2021-07-01 09:55:56,841 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,841 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,841 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,841 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:56,863 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,863 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,864 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,864 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,864 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,870 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,871 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,871 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,871 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,871 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,878 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,878 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,878 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,878 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,878 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,878 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [42#L24true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 26#L59true]) [2021-07-01 09:55:56,878 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,879 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,879 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,879 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,893 INFO L382 tUnfolder$Statistics]: inserting event number 6 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,894 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,894 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,894 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,894 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,894 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,894 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,901 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,902 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,903 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,904 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,905 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,905 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][36], [42#L24true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 26#L59true, 59#(<= 2 pendingIo)]) [2021-07-01 09:55:56,905 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,909 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,909 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,909 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,919 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,919 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,919 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,919 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,919 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,921 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][46], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,921 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,921 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:56,921 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,921 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,939 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][36], [8#L68true, 42#L24true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 26#L59true, 59#(<= 2 pendingIo)]) [2021-07-01 09:55:56,939 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,939 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,939 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,939 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,940 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([95] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [42#L24true, 43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5NotInUse, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 26#L59true]) [2021-07-01 09:55:56,940 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,940 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,941 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,941 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,947 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,947 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,947 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:56,947 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:56,948 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:56,950 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,950 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,950 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,950 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,950 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,958 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,958 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,958 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,958 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,958 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,958 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,962 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,962 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,962 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,962 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,962 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,966 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][46], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,966 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,966 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,966 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,967 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:56,972 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,973 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,973 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,973 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:55:56,974 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:56,990 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,990 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,990 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,990 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:56,990 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:56,998 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:56,998 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,998 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,998 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:56,998 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,001 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,001 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,001 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,001 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,001 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,001 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,002 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,002 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,002 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,002 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,002 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,002 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,012 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][46], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,012 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,012 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,012 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,012 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,014 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,014 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,014 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,014 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,014 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,036 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,037 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,037 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,037 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,037 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,041 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,041 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,041 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,041 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,041 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,051 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,052 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,052 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,052 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,052 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,057 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][45], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,057 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,057 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,057 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,057 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,058 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,058 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,058 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,058 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,059 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,060 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][46], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, 15#L93-2true, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,063 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,063 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,063 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,063 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,084 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,084 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,085 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2021-07-01 09:55:57,085 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,085 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,113 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,113 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,113 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,115 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,115 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,120 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,120 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,120 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,120 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,120 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,125 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 15#L93-2true, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,125 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,125 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,125 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,125 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,134 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,134 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,134 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is not cut-off event [2021-07-01 09:55:57,134 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,135 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,138 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][44], [43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true]) [2021-07-01 09:55:57,138 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,138 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,138 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:57,139 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,149 INFO L129 PetriNetUnfolder]: 2506/3330 cut-off events. [2021-07-01 09:55:57,149 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:55:57,159 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6413 conditions, 3330 events. 2506/3330 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 219. Compared 13855 event pairs, 446 based on Foata normal form. 0/3246 useless extension candidates. Maximal degree in co-relation 6397. Up to 1708 conditions per place. [2021-07-01 09:55:57,182 INFO L132 encePairwiseOnDemand]: 25/39 looper letters, 19 selfloop transitions, 19 changer transitions 0/57 dead transitions. [2021-07-01 09:55:57,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 57 transitions, 208 flow [2021-07-01 09:55:57,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-01 09:55:57,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-07-01 09:55:57,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 140 transitions. [2021-07-01 09:55:57,192 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2021-07-01 09:55:57,193 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 140 transitions. [2021-07-01 09:55:57,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 140 transitions. [2021-07-01 09:55:57,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:57,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 140 transitions. [2021-07-01 09:55:57,200 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2021-07-01 09:55:57,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-07-01 09:55:57,207 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-07-01 09:55:57,209 INFO L185 Difference]: Start difference. First operand has 47 places, 33 transitions, 84 flow. Second operand 4 states and 140 transitions. [2021-07-01 09:55:57,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 57 transitions, 208 flow [2021-07-01 09:55:57,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 57 transitions, 202 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-07-01 09:55:57,224 INFO L241 Difference]: Finished difference. Result has 47 places, 51 transitions, 218 flow [2021-07-01 09:55:57,226 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=47, PETRI_TRANSITIONS=51} [2021-07-01 09:55:57,227 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 0 predicate places. [2021-07-01 09:55:57,227 INFO L482 AbstractCegarLoop]: Abstraction has has 47 places, 51 transitions, 218 flow [2021-07-01 09:55:57,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2021-07-01 09:55:57,227 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:57,227 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:57,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 09:55:57,227 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:57,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:57,229 INFO L82 PathProgramCache]: Analyzing trace with hash -2006913109, now seen corresponding path program 1 times [2021-07-01 09:55:57,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:57,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051036555] [2021-07-01 09:55:57,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:57,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:57,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:57,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:55:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:57,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:57,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051036555] [2021-07-01 09:55:57,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051036555] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:57,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:57,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:55:57,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045114975] [2021-07-01 09:55:57,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:55:57,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:57,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:55:57,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:55:57,256 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 39 [2021-07-01 09:55:57,256 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 51 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-07-01 09:55:57,256 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:57,256 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 39 [2021-07-01 09:55:57,256 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:57,300 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][38], [64#true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,300 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,300 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,300 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,300 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,304 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][38], [64#true, 7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,304 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,304 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,304 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,304 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,317 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, 30#L59true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:55:57,318 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,318 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,318 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,318 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:57,325 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,325 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,325 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,325 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,325 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,366 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,366 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,366 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,366 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,366 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,370 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 7#L70-2true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,370 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,370 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,370 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,371 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,388 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,389 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,389 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:55:57,389 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,389 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,395 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,395 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,395 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,395 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,395 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,398 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,398 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,398 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,398 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,398 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,416 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,417 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,417 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,417 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,417 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:55:57,422 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][35], [64#true, 43#DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERTtrue, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,422 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,422 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,422 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:55:57,422 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,427 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][38], [64#true, 8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,427 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,427 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,427 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,427 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-07-01 09:55:57,446 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][38], [64#true, 8#L68true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,447 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,447 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,447 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:57,447 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is not cut-off event [2021-07-01 09:55:57,471 INFO L129 PetriNetUnfolder]: 1505/2613 cut-off events. [2021-07-01 09:55:57,471 INFO L130 PetriNetUnfolder]: For 2482/2754 co-relation queries the response was YES. [2021-07-01 09:55:57,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6573 conditions, 2613 events. 1505/2613 cut-off events. For 2482/2754 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 15996 event pairs, 189 based on Foata normal form. 1169/3658 useless extension candidates. Maximal degree in co-relation 6558. Up to 1325 conditions per place. [2021-07-01 09:55:57,491 INFO L132 encePairwiseOnDemand]: 33/39 looper letters, 11 selfloop transitions, 1 changer transitions 0/51 dead transitions. [2021-07-01 09:55:57,491 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 51 transitions, 242 flow [2021-07-01 09:55:57,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:55:57,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-07-01 09:55:57,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 108 transitions. [2021-07-01 09:55:57,494 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2021-07-01 09:55:57,494 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 108 transitions. [2021-07-01 09:55:57,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 108 transitions. [2021-07-01 09:55:57,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:57,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 108 transitions. [2021-07-01 09:55:57,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2021-07-01 09:55:57,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2021-07-01 09:55:57,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2021-07-01 09:55:57,496 INFO L185 Difference]: Start difference. First operand has 47 places, 51 transitions, 218 flow. Second operand 3 states and 108 transitions. [2021-07-01 09:55:57,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 51 transitions, 242 flow [2021-07-01 09:55:57,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 51 transitions, 242 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-07-01 09:55:57,503 INFO L241 Difference]: Finished difference. Result has 50 places, 51 transitions, 241 flow [2021-07-01 09:55:57,503 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=241, PETRI_PLACES=50, PETRI_TRANSITIONS=51} [2021-07-01 09:55:57,504 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 3 predicate places. [2021-07-01 09:55:57,504 INFO L482 AbstractCegarLoop]: Abstraction has has 50 places, 51 transitions, 241 flow [2021-07-01 09:55:57,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2021-07-01 09:55:57,504 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:57,504 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:57,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 09:55:57,505 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:57,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1244509774, now seen corresponding path program 1 times [2021-07-01 09:55:57,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:57,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557582677] [2021-07-01 09:55:57,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:57,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:57,550 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:57,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:57,561 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:57,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:57,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:57,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:57,564 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:57,564 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557582677] [2021-07-01 09:55:57,564 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557582677] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:57,564 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:57,564 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:55:57,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852027031] [2021-07-01 09:55:57,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-01 09:55:57,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:57,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-01 09:55:57,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-01 09:55:57,566 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 39 [2021-07-01 09:55:57,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 51 transitions, 241 flow. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-07-01 09:55:57,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:57,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 39 [2021-07-01 09:55:57,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:57,666 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [64#true, Black: 66#stoppingFlag, 73#(<= 3 pendingIo), 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,666 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,666 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,666 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,666 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,670 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [64#true, Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,670 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,670 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,671 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,671 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,687 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [64#true, Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,688 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,688 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,688 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,688 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,695 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [64#true, Black: 66#stoppingFlag, 73#(<= 3 pendingIo), 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, 30#L59true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:55:57,695 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,695 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,695 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:57,695 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:57,730 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [64#true, Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, 30#L59true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:55:57,730 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,730 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,730 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,730 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:57,742 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][64], [64#true, Black: 66#stoppingFlag, 7#L70-2true, 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,742 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:55:57,742 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:57,742 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:57,742 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:57,747 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [64#true, Black: 66#stoppingFlag, 73#(<= 3 pendingIo), 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,748 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,748 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,748 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,748 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,748 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [64#true, Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,748 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,749 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,749 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,749 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:57,790 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [64#true, Black: 66#stoppingFlag, 73#(<= 3 pendingIo), 12#L59true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,790 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,790 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,791 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,791 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:57,854 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][90], [64#true, Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:57,855 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,855 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:55:57,855 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,855 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:57,969 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [64#true, Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,969 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-07-01 09:55:57,969 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:55:57,970 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:55:57,970 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:55:57,970 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [64#true, Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork4InUse, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:57,970 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is not cut-off event [2021-07-01 09:55:57,970 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:57,970 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:57,970 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2021-07-01 09:55:58,173 INFO L129 PetriNetUnfolder]: 3819/6321 cut-off events. [2021-07-01 09:55:58,174 INFO L130 PetriNetUnfolder]: For 3687/4108 co-relation queries the response was YES. [2021-07-01 09:55:58,188 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20137 conditions, 6321 events. 3819/6321 cut-off events. For 3687/4108 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 40129 event pairs, 180 based on Foata normal form. 135/6446 useless extension candidates. Maximal degree in co-relation 20120. Up to 2583 conditions per place. [2021-07-01 09:55:58,219 INFO L132 encePairwiseOnDemand]: 25/39 looper letters, 27 selfloop transitions, 69 changer transitions 1/116 dead transitions. [2021-07-01 09:55:58,220 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 116 transitions, 803 flow [2021-07-01 09:55:58,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 09:55:58,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-07-01 09:55:58,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2021-07-01 09:55:58,223 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9128205128205128 [2021-07-01 09:55:58,223 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 178 transitions. [2021-07-01 09:55:58,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 178 transitions. [2021-07-01 09:55:58,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:58,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 178 transitions. [2021-07-01 09:55:58,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 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) [2021-07-01 09:55:58,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2021-07-01 09:55:58,226 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 39.0) internal successors, (234), 6 states have internal predecessors, (234), 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) [2021-07-01 09:55:58,226 INFO L185 Difference]: Start difference. First operand has 50 places, 51 transitions, 241 flow. Second operand 5 states and 178 transitions. [2021-07-01 09:55:58,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 116 transitions, 803 flow [2021-07-01 09:55:58,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 116 transitions, 802 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-07-01 09:55:58,262 INFO L241 Difference]: Finished difference. Result has 57 places, 106 transitions, 876 flow [2021-07-01 09:55:58,262 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=876, PETRI_PLACES=57, PETRI_TRANSITIONS=106} [2021-07-01 09:55:58,262 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2021-07-01 09:55:58,262 INFO L482 AbstractCegarLoop]: Abstraction has has 57 places, 106 transitions, 876 flow [2021-07-01 09:55:58,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-07-01 09:55:58,262 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:58,263 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:58,263 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 09:55:58,263 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:58,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:58,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1148685819, now seen corresponding path program 1 times [2021-07-01 09:55:58,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:58,264 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036614026] [2021-07-01 09:55:58,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:58,312 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:58,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:58,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:58,336 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036614026] [2021-07-01 09:55:58,336 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036614026] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:58,336 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:58,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-01 09:55:58,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028567790] [2021-07-01 09:55:58,337 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 09:55:58,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:58,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 09:55:58,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:55:58,338 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 39 [2021-07-01 09:55:58,338 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 106 transitions, 876 flow. Second operand has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2021-07-01 09:55:58,338 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:58,338 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 39 [2021-07-01 09:55:58,338 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:55:58,466 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:58,466 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,467 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,467 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,467 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,471 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, Black: 72#(<= 2 pendingIo), ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:58,471 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,471 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,471 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,471 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,484 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:58,485 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,485 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,485 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,485 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,491 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 84#(<= 4 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, 30#L59true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:55:58,492 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,492 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,492 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:55:58,492 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:55:58,520 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 84#(<= 4 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, 30#L59true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:55:58,521 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,521 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,521 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:55:58,521 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,535 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][75], [Black: 66#stoppingFlag, 7#L70-2true, 72#(<= 2 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, Black: 73#(<= 3 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 82#(<= 2 pendingIo), 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,535 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:55:58,535 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:55:58,535 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:58,535 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:55:58,540 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,541 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,541 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,541 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,541 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:58,542 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,542 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,542 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:58,542 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,542 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:55:58,585 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, 12#L59true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 84#(<= 4 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,585 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:55:58,585 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:58,585 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:58,585 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:55:58,730 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][146], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, Black: 72#(<= 2 pendingIo), ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 84#(<= 4 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 25#L70-2true, 59#(<= 2 pendingIo), 28#L70-2true, Black: 56#true, Black: 58#(<= 1 pendingIo), 30#L59true]) [2021-07-01 09:55:58,730 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:55:58,730 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:58,730 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:55:58,730 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:55:58,916 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 16#L59true, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, 84#(<= 4 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,916 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-07-01 09:55:58,916 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:55:58,916 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:55:58,916 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:55:58,917 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, Black: 72#(<= 2 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, 18#L70-2true, DeviceThreadThread1of1ForFork2InUse, 83#(<= 3 pendingIo), DeviceThreadThread1of1ForFork5InUse, 22#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork4InUse, 23#ULTIMATE.startFINALtrue, 56#true, 25#L70-2true, 28#L70-2true, 30#L59true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:55:58,917 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is not cut-off event [2021-07-01 09:55:58,917 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2021-07-01 09:55:58,917 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:58,917 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:55:59,663 INFO L129 PetriNetUnfolder]: 7575/12521 cut-off events. [2021-07-01 09:55:59,663 INFO L130 PetriNetUnfolder]: For 18923/20164 co-relation queries the response was YES. [2021-07-01 09:55:59,730 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56563 conditions, 12521 events. 7575/12521 cut-off events. For 18923/20164 co-relation queries the response was YES. Maximal size of possible extension queue 461. Compared 84974 event pairs, 200 based on Foata normal form. 176/12687 useless extension candidates. Maximal degree in co-relation 56541. Up to 4940 conditions per place. [2021-07-01 09:55:59,871 INFO L132 encePairwiseOnDemand]: 25/39 looper letters, 42 selfloop transitions, 201 changer transitions 1/263 dead transitions. [2021-07-01 09:55:59,871 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 263 transitions, 2816 flow [2021-07-01 09:55:59,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 09:55:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-07-01 09:55:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 216 transitions. [2021-07-01 09:55:59,873 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2021-07-01 09:55:59,873 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 216 transitions. [2021-07-01 09:55:59,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 216 transitions. [2021-07-01 09:55:59,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:55:59,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 216 transitions. [2021-07-01 09:55:59,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 36.0) internal successors, (216), 6 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) [2021-07-01 09:55:59,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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) [2021-07-01 09:55:59,874 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 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) [2021-07-01 09:55:59,874 INFO L185 Difference]: Start difference. First operand has 57 places, 106 transitions, 876 flow. Second operand 6 states and 216 transitions. [2021-07-01 09:55:59,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 263 transitions, 2816 flow [2021-07-01 09:55:59,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 263 transitions, 2756 flow, removed 30 selfloop flow, removed 0 redundant places. [2021-07-01 09:55:59,920 INFO L241 Difference]: Finished difference. Result has 67 places, 253 transitions, 3064 flow [2021-07-01 09:55:59,920 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3064, PETRI_PLACES=67, PETRI_TRANSITIONS=253} [2021-07-01 09:55:59,920 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 20 predicate places. [2021-07-01 09:55:59,920 INFO L482 AbstractCegarLoop]: Abstraction has has 67 places, 253 transitions, 3064 flow [2021-07-01 09:55:59,920 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.333333333333332) internal successors, (158), 6 states have internal predecessors, (158), 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) [2021-07-01 09:55:59,920 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:55:59,921 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:55:59,921 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 09:55:59,921 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:55:59,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:55:59,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1877632722, now seen corresponding path program 1 times [2021-07-01 09:55:59,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:55:59,921 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072756118] [2021-07-01 09:55:59,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:55:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:55:59,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:55:59,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:55:59,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:55:59,963 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:55:59,963 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072756118] [2021-07-01 09:55:59,963 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072756118] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:55:59,963 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:55:59,963 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 09:55:59,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594204293] [2021-07-01 09:55:59,963 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 09:55:59,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:55:59,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 09:55:59,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-07-01 09:55:59,964 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 39 [2021-07-01 09:55:59,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 253 transitions, 3064 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2021-07-01 09:55:59,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:55:59,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 39 [2021-07-01 09:55:59,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:56:00,093 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][48], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,093 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,093 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,093 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,093 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,099 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][48], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,099 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,099 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,099 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,099 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,121 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][48], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,121 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,121 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,121 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,121 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,137 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][51], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, 12#L59true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,137 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,137 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,137 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:56:00,137 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:00,175 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][51], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,176 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,176 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,176 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:00,176 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,189 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][71], [Black: 66#stoppingFlag, 7#L70-2true, 72#(<= 2 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 73#(<= 3 pendingIo), 18#L70-2true, 82#(<= 2 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 83#(<= 3 pendingIo), Black: 84#(<= 4 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 94#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,189 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:56:00,189 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:56:00,189 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:56:00,189 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:56:00,198 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, Black: 82#(<= 2 pendingIo), 23#ULTIMATE.startFINALtrue, 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,198 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,198 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,198 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:00,198 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,199 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 83#(<= 3 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,199 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,199 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,199 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:00,199 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:00,254 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][51], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,255 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:56:00,255 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:00,255 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:00,255 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:00,391 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][160], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:00,391 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:56:00,391 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:00,391 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:00,391 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:00,572 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][51], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), Black: 82#(<= 2 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,572 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-07-01 09:56:00,572 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:00,572 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:00,572 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:00,573 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][50], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 84#(<= 4 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:00,573 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is not cut-off event [2021-07-01 09:56:00,573 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2021-07-01 09:56:00,573 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:56:00,573 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:56:02,590 INFO L129 PetriNetUnfolder]: 12307/20178 cut-off events. [2021-07-01 09:56:02,590 INFO L130 PetriNetUnfolder]: For 59854/63086 co-relation queries the response was YES. [2021-07-01 09:56:02,701 INFO L84 FinitePrefix]: Finished finitePrefix Result has 116069 conditions, 20178 events. 12307/20178 cut-off events. For 59854/63086 co-relation queries the response was YES. Maximal size of possible extension queue 607. Compared 139343 event pairs, 202 based on Foata normal form. 229/20397 useless extension candidates. Maximal degree in co-relation 116040. Up to 7751 conditions per place. [2021-07-01 09:56:02,813 INFO L132 encePairwiseOnDemand]: 25/39 looper letters, 73 selfloop transitions, 557 changer transitions 1/650 dead transitions. [2021-07-01 09:56:02,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 650 transitions, 9330 flow [2021-07-01 09:56:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-01 09:56:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-07-01 09:56:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 254 transitions. [2021-07-01 09:56:02,815 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9304029304029304 [2021-07-01 09:56:02,815 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 254 transitions. [2021-07-01 09:56:02,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 254 transitions. [2021-07-01 09:56:02,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:56:02,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 254 transitions. [2021-07-01 09:56:02,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 36.285714285714285) internal successors, (254), 7 states have internal predecessors, (254), 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) [2021-07-01 09:56:02,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 39.0) internal successors, (312), 8 states have internal predecessors, (312), 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) [2021-07-01 09:56:02,816 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 39.0) internal successors, (312), 8 states have internal predecessors, (312), 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) [2021-07-01 09:56:02,816 INFO L185 Difference]: Start difference. First operand has 67 places, 253 transitions, 3064 flow. Second operand 7 states and 254 transitions. [2021-07-01 09:56:02,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 650 transitions, 9330 flow [2021-07-01 09:56:02,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 650 transitions, 9238 flow, removed 46 selfloop flow, removed 0 redundant places. [2021-07-01 09:56:03,005 INFO L241 Difference]: Finished difference. Result has 79 places, 633 transitions, 10154 flow [2021-07-01 09:56:03,005 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=3042, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=211, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=10154, PETRI_PLACES=79, PETRI_TRANSITIONS=633} [2021-07-01 09:56:03,005 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 32 predicate places. [2021-07-01 09:56:03,005 INFO L482 AbstractCegarLoop]: Abstraction has has 79 places, 633 transitions, 10154 flow [2021-07-01 09:56:03,006 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 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) [2021-07-01 09:56:03,006 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:56:03,006 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:56:03,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-01 09:56:03,006 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:56:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:56:03,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1084749501, now seen corresponding path program 1 times [2021-07-01 09:56:03,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:56:03,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53109588] [2021-07-01 09:56:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:56:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:56:03,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,049 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:03,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:03,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:56:03,052 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:56:03,052 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53109588] [2021-07-01 09:56:03,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53109588] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:56:03,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:56:03,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 09:56:03,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326203481] [2021-07-01 09:56:03,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-01 09:56:03,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:56:03,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-01 09:56:03,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-07-01 09:56:03,053 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 39 [2021-07-01 09:56:03,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 633 transitions, 10154 flow. Second operand has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 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) [2021-07-01 09:56:03,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:56:03,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 39 [2021-07-01 09:56:03,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:56:03,264 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 109#(<= 3 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,264 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,264 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,264 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,264 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,271 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 83#(<= 3 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 109#(<= 3 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,271 INFO L384 tUnfolder$Statistics]: this new event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,271 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,271 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,271 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,300 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][52], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 109#(<= 3 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,300 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,300 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,300 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,300 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,315 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][54], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), Black: 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 110#(<= 4 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,315 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,315 INFO L387 tUnfolder$Statistics]: existing Event has 13 ancestors and is cut-off event [2021-07-01 09:56:03,316 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,316 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is cut-off event [2021-07-01 09:56:03,357 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][54], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), 22#ServerThreadENTRYtrue, Black: 81#(<= 1 pendingIo), Black: 82#(<= 2 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), Black: 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 110#(<= 4 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,358 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,358 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-07-01 09:56:03,358 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,358 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,382 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][71], [Black: 66#stoppingFlag, 7#L70-2true, 72#(<= 2 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 73#(<= 3 pendingIo), 82#(<= 2 pendingIo), 18#L70-2true, Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 94#(<= 2 pendingIo), 30#L59true, Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 95#(<= 3 pendingIo), 108#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,382 INFO L384 tUnfolder$Statistics]: this new event has 15 ancestors and is not cut-off event [2021-07-01 09:56:03,382 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is not cut-off event [2021-07-01 09:56:03,383 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:56:03,383 INFO L387 tUnfolder$Statistics]: existing Event has 15 ancestors and is not cut-off event [2021-07-01 09:56:03,390 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), 12#L59true, Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 84#(<= 4 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 109#(<= 3 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,391 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 7#L70-2true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, Black: 82#(<= 2 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 84#(<= 4 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), 109#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,391 INFO L384 tUnfolder$Statistics]: this new event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-07-01 09:56:03,391 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:03,458 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][54], [Black: 66#stoppingFlag, 73#(<= 3 pendingIo), Black: 69#true, 12#L59true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), Black: 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 110#(<= 4 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,458 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-07-01 09:56:03,458 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:03,458 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-07-01 09:56:03,458 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:03,555 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][171], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), Black: 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 110#(<= 4 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 59#(<= 2 pendingIo), Black: 56#true, Black: 58#(<= 1 pendingIo)]) [2021-07-01 09:56:03,555 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-07-01 09:56:03,555 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:03,555 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:03,555 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:03,791 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][54], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 16#L59true, 84#(<= 4 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, Black: 82#(<= 2 pendingIo), 23#ULTIMATE.startFINALtrue, Black: 83#(<= 3 pendingIo), 25#L70-2true, Black: 79#true, 28#L70-2true, 30#L59true, 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), Black: 95#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, 110#(<= 4 pendingIo), ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,791 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-07-01 09:56:03,791 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:03,791 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:03,791 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:03,792 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([98] L70-2-->L59: Formula: (and (= v_pendingIo_20 (+ v_pendingIo_21 1)) (not v_stoppingFlag_5)) InVars {pendingIo=v_pendingIo_21, stoppingFlag=v_stoppingFlag_5} OutVars{pendingIo=v_pendingIo_20, stoppingFlag=v_stoppingFlag_5} AuxVars[] AssignedVars[pendingIo][53], [Black: 66#stoppingFlag, 8#L68true, 73#(<= 3 pendingIo), Black: 69#true, Black: 71#(<= 1 pendingIo), Black: 72#(<= 2 pendingIo), 18#L70-2true, 83#(<= 3 pendingIo), Black: 81#(<= 1 pendingIo), 22#ServerThreadENTRYtrue, 23#ULTIMATE.startFINALtrue, Black: 82#(<= 2 pendingIo), 25#L70-2true, Black: 84#(<= 4 pendingIo), Black: 79#true, 28#L70-2true, 30#L59true, 95#(<= 3 pendingIo), Black: 96#(<= 4 pendingIo), Black: 97#(<= 5 pendingIo), Black: 91#true, Black: 93#(<= 1 pendingIo), Black: 94#(<= 2 pendingIo), 109#(<= 3 pendingIo), DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork3InUse, DeviceThreadThread1of1ForFork2InUse, DeviceThreadThread1of1ForFork5InUse, DeviceThreadThread1of1ForFork4InUse, 56#true, Black: 58#(<= 1 pendingIo), Black: 59#(<= 2 pendingIo)]) [2021-07-01 09:56:03,792 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is not cut-off event [2021-07-01 09:56:03,792 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is not cut-off event [2021-07-01 09:56:03,792 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:56:03,792 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is not cut-off event [2021-07-01 09:56:06,265 INFO L129 PetriNetUnfolder]: 12189/20097 cut-off events. [2021-07-01 09:56:06,265 INFO L130 PetriNetUnfolder]: For 103272/107628 co-relation queries the response was YES. [2021-07-01 09:56:06,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142281 conditions, 20097 events. 12189/20097 cut-off events. For 103272/107628 co-relation queries the response was YES. Maximal size of possible extension queue 588. Compared 139063 event pairs, 88 based on Foata normal form. 309/20396 useless extension candidates. Maximal degree in co-relation 142244. Up to 7681 conditions per place. [2021-07-01 09:56:06,410 INFO L132 encePairwiseOnDemand]: 26/39 looper letters, 0 selfloop transitions, 0 changer transitions 1551/1551 dead transitions. [2021-07-01 09:56:06,410 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 1551 transitions, 28222 flow [2021-07-01 09:56:06,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-01 09:56:06,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-07-01 09:56:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 274 transitions. [2021-07-01 09:56:06,411 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8782051282051282 [2021-07-01 09:56:06,411 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 274 transitions. [2021-07-01 09:56:06,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 274 transitions. [2021-07-01 09:56:06,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:56:06,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 274 transitions. [2021-07-01 09:56:06,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 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) [2021-07-01 09:56:06,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 39.0) internal successors, (351), 9 states have internal predecessors, (351), 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) [2021-07-01 09:56:06,413 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 39.0) internal successors, (351), 9 states have internal predecessors, (351), 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) [2021-07-01 09:56:06,413 INFO L185 Difference]: Start difference. First operand has 79 places, 633 transitions, 10154 flow. Second operand 8 states and 274 transitions. [2021-07-01 09:56:06,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 1551 transitions, 28222 flow [2021-07-01 09:56:06,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 1551 transitions, 23166 flow, removed 271 selfloop flow, removed 9 redundant places. [2021-07-01 09:56:06,772 INFO L241 Difference]: Finished difference. Result has 76 places, 0 transitions, 0 flow [2021-07-01 09:56:06,772 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=8161, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=76, PETRI_TRANSITIONS=0} [2021-07-01 09:56:06,772 INFO L335 CegarLoopForPetriNet]: 47 programPoint places, 29 predicate places. [2021-07-01 09:56:06,772 INFO L482 AbstractCegarLoop]: Abstraction has has 76 places, 0 transitions, 0 flow [2021-07-01 09:56:06,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 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) [2021-07-01 09:56:06,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-01 09:56:06,773 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was SAFE (2/2) [2021-07-01 09:56:06,773 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 09:56:06,775 INFO L202 PluginConnector]: Adding new model bluetooth-customized05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 09:56:06 BasicIcfg [2021-07-01 09:56:06,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 09:56:06,776 INFO L168 Benchmark]: Toolchain (without parser) took 10759.03 ms. Allocated memory was 177.2 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 156.7 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 775.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,776 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 177.2 MB. Free memory is still 157.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 09:56:06,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.01 ms. Allocated memory is still 177.2 MB. Free memory was 156.6 MB in the beginning and 154.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,777 INFO L168 Benchmark]: Boogie Preprocessor took 13.67 ms. Allocated memory is still 177.2 MB. Free memory was 154.8 MB in the beginning and 153.9 MB in the end (delta: 948.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,777 INFO L168 Benchmark]: RCFGBuilder took 261.10 ms. Allocated memory is still 177.2 MB. Free memory was 153.9 MB in the beginning and 139.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,778 INFO L168 Benchmark]: TraceAbstraction took 10439.58 ms. Allocated memory was 177.2 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 139.2 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 757.2 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,779 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 0.12 ms. Allocated memory is still 177.2 MB. Free memory is still 157.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.01 ms. Allocated memory is still 177.2 MB. Free memory was 156.6 MB in the beginning and 154.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.67 ms. Allocated memory is still 177.2 MB. Free memory was 154.8 MB in the beginning and 153.9 MB in the end (delta: 948.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 261.10 ms. Allocated memory is still 177.2 MB. Free memory was 153.9 MB in the beginning and 139.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10439.58 ms. Allocated memory was 177.2 MB in the beginning and 3.5 GB in the end (delta: 3.3 GB). Free memory was 139.2 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 757.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 41.9ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 30.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 10 procedures, 55 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.7ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 10284.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 9896.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 20 SDtfs, 24 SDslu, 0 SDs, 0 SdLazy, 484 SolverSat, 182 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 325.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 79.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10154occurred in iteration=5, InterpolantAutomatonStates: 33, 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: 11.3ms SsaConstructionTime, 44.6ms SatisfiabilityAnalysisTime, 208.6ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...