java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-04 09:29:10,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-04 09:29:10,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-04 09:29:10,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-04 09:29:10,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-04 09:29:10,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-04 09:29:10,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-04 09:29:10,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-04 09:29:10,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-04 09:29:10,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-04 09:29:10,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-04 09:29:10,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-04 09:29:10,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-04 09:29:10,344 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-04 09:29:10,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-04 09:29:10,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-04 09:29:10,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-04 09:29:10,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-04 09:29:10,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-04 09:29:10,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-04 09:29:10,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-04 09:29:10,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-04 09:29:10,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-04 09:29:10,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-04 09:29:10,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-04 09:29:10,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-04 09:29:10,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-04 09:29:10,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-04 09:29:10,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-04 09:29:10,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-04 09:29:10,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-04 09:29:10,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-04 09:29:10,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-04 09:29:10,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-04 09:29:10,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-04 09:29:10,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-04 09:29:10,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-04 09:29:10,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-04 09:29:10,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-04 09:29:10,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-04 09:29:10,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-04 09:29:10,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-04 09:29:10,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-04 09:29:10,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-04 09:29:10,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-04 09:29:10,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-04 09:29:10,413 INFO L138 SettingsManager]: * Use SBE=true [2019-10-04 09:29:10,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-04 09:29:10,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-04 09:29:10,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-04 09:29:10,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-04 09:29:10,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-04 09:29:10,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-04 09:29:10,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-04 09:29:10,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-04 09:29:10,415 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-04 09:29:10,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-04 09:29:10,416 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-04 09:29:10,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-04 09:29:10,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-04 09:29:10,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-04 09:29:10,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-04 09:29:10,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-04 09:29:10,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-04 09:29:10,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-04 09:29:10,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-04 09:29:10,419 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-04 09:29:10,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-04 09:29:10,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-04 09:29:10,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-04 09:29:10,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-04 09:29:10,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-04 09:29:10,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-04 09:29:10,491 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-04 09:29:10,492 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-04 09:29:10,493 INFO L275 PluginConnector]: CDTParser initialized [2019-10-04 09:29:10,493 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2019-10-04 09:29:10,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3f9b615/500ffd66311647c991d442335d21b078/FLAG9c0921a33 [2019-10-04 09:29:11,045 INFO L306 CDTParser]: Found 1 translation units. [2019-10-04 09:29:11,046 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2019-10-04 09:29:11,074 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3f9b615/500ffd66311647c991d442335d21b078/FLAG9c0921a33 [2019-10-04 09:29:11,370 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7f3f9b615/500ffd66311647c991d442335d21b078 [2019-10-04 09:29:11,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-04 09:29:11,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-04 09:29:11,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-04 09:29:11,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-04 09:29:11,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-04 09:29:11,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 09:29:11" (1/1) ... [2019-10-04 09:29:11,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e605b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:11, skipping insertion in model container [2019-10-04 09:29:11,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.10 09:29:11" (1/1) ... [2019-10-04 09:29:11,397 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-04 09:29:11,449 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-04 09:29:11,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-04 09:29:11,909 INFO L188 MainTranslator]: Completed pre-run [2019-10-04 09:29:12,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-04 09:29:12,042 INFO L192 MainTranslator]: Completed translation [2019-10-04 09:29:12,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12 WrapperNode [2019-10-04 09:29:12,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-04 09:29:12,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-04 09:29:12,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-04 09:29:12,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-04 09:29:12,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (1/1) ... [2019-10-04 09:29:12,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-04 09:29:12,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-04 09:29:12,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-04 09:29:12,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-04 09:29:12,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.10 09:29:12" (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 [2019-10-04 09:29:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-04 09:29:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-04 09:29:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2019-10-04 09:29:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2019-10-04 09:29:12,177 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2019-10-04 09:29:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2019-10-04 09:29:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2019-10-04 09:29:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2019-10-04 09:29:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2019-10-04 09:29:12,178 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2019-10-04 09:29:12,179 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2019-10-04 09:29:12,180 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2019-10-04 09:29:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2019-10-04 09:29:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2019-10-04 09:29:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2019-10-04 09:29:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2019-10-04 09:29:12,181 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2019-10-04 09:29:12,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2019-10-04 09:29:12,182 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2019-10-04 09:29:12,183 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2019-10-04 09:29:12,184 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2019-10-04 09:29:12,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-04 09:29:12,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-04 09:29:12,403 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:12,503 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:12,503 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:12,515 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:12,549 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:12,550 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:12,560 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:12,800 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-10-04 09:29:12,800 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2019-10-04 09:29:12,804 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:12,899 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2019-10-04 09:29:12,899 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2019-10-04 09:29:12,920 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:12,938 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-10-04 09:29:12,938 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-10-04 09:29:13,038 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,054 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,054 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,055 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,064 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,065 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,065 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,076 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,076 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,117 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,148 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2019-10-04 09:29:13,149 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2019-10-04 09:29:13,174 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,181 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,181 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,182 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,190 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,191 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,191 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-04 09:29:13,198 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-04 09:29:13,198 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-04 09:29:13,631 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-04 09:29:13,631 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-04 09:29:13,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:29:13 BoogieIcfgContainer [2019-10-04 09:29:13,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-04 09:29:13,634 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-04 09:29:13,634 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-04 09:29:13,634 INFO L275 PluginConnector]: Sifa initialized [2019-10-04 09:29:13,635 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:29:13" (1/1) ... [2019-10-04 09:29:13,636 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=CompoundDomain ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=SIMPLIFY_QUICK ♦ SizeLimitFluid Max. DAG Size=-1 [2019-10-04 09:29:13,677 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-04 09:29:13,677 INFO L169 IcfgInterpreter]: Building call graph [2019-10-04 09:29:13,695 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-04 09:29:13,709 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-04 09:29:13,711 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-04 09:29:14,104 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 134 for LOIs [2019-10-04 09:29:15,641 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-10-04 09:29:17,058 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-10-04 09:29:22,909 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 185 [2019-10-04 09:29:23,845 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2019-10-04 09:29:24,865 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2019-10-04 09:29:25,027 INFO L199 IcfgInterpreter]: Interpreting procedure FloppyPnp with input of size 112 for LOIs [2019-10-04 09:29:29,004 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2019-10-04 09:29:29,468 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 260 [2019-10-04 09:29:30,582 INFO L199 IcfgInterpreter]: Interpreting procedure FloppyStartDevice with input of size 106 for LOIs [2019-10-04 09:29:31,106 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-04 09:29:32,192 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-04 09:29:32,844 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-04 09:29:33,747 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-04 09:29:34,365 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2019-10-04 09:29:34,480 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-10-04 09:29:34,691 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2019-10-04 09:29:34,850 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 307 [2019-10-04 09:29:34,974 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2019-10-04 09:29:35,159 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2019-10-04 09:29:35,608 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-10-04 09:29:35,809 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2019-10-04 09:29:35,964 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 306 [2019-10-04 09:29:36,453 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-04 09:29:36,681 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2019-10-04 09:29:36,834 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 306 [2019-10-04 09:29:37,462 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-10-04 09:29:37,911 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 307 [2019-10-04 09:29:37,961 INFO L199 IcfgInterpreter]: Interpreting procedure FlFdcDeviceIo with input of size 128 for LOIs [2019-10-04 09:29:38,130 INFO L199 IcfgInterpreter]: Interpreting procedure IofCallDriver with input of size 146 for LOIs [2019-10-04 09:29:38,363 INFO L199 IcfgInterpreter]: Interpreting procedure stubMoreProcessingRequired with input of size 130 for LOIs [2019-10-04 09:29:38,397 INFO L199 IcfgInterpreter]: Interpreting procedure FlQueueIrpToThread with input of size 123 for LOIs [2019-10-04 09:29:38,473 INFO L199 IcfgInterpreter]: Interpreting procedure IofCompleteRequest with input of size 96 for LOIs [2019-10-04 09:29:38,506 INFO L199 IcfgInterpreter]: Interpreting procedure KeWaitForSingleObject with input of size 152 for LOIs [2019-10-04 09:29:38,623 INFO L199 IcfgInterpreter]: Interpreting procedure errorFn with input of size 81 for LOIs [2019-10-04 09:29:38,640 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-04 09:29:38,640 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-04 09:29:38,642 INFO L193 IcfgInterpreter]: Reachable states at location errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 2533#(and (= ~MPR1~0 5) (= ~UNLOADED~0 0) (<= ~MOUNTDEV_MOUNTED_DEVICE_GUID~0 0) (<= 0 ~DiskController~0) (= ~MPR3~0 6) (<= 0 ~UNLOADED~0) (= ~KernelMode~0 0) (= ~SKIP1~0 3) (<= ~IPC~0 7) (<= 0 ~MaximumInterfaceType~0) (<= ~NP~0 1) (<= 6 ~MPR3~0) (<= ~FloppyDiskPeripheral~0 0) (<= 0 ~PagingMutex~0) (<= 0 ~MOUNTDEV_MOUNTED_DEVICE_GUID~0) (<= 0 ~FloppyDiskPeripheral~0) (<= ~DiskController~0 0) (= ~FloppyDiskPeripheral~0 0) (<= ~KernelMode~0 0) (<= 0 ~FlConfigCallBack~0) (<= 2 ~DC~0) (= ~NP~0 1) (= ~MaximumInterfaceType~0 0) (= ~FlConfigCallBack~0 0) (<= ~SKIP1~0 3) (= ~SKIP2~0 4) (<= ~UNLOADED~0 0) (<= ~MaximumInterfaceType~0 0) (<= 1 ~NP~0) (<= ~Suspended~0 0) (<= 5 ~MPR1~0) (= ~Executive~0 0) (<= ~FlConfigCallBack~0 0) (<= 0 ~Suspended~0) (= ~DC~0 2) (<= 0 ~KernelMode~0) (<= ~MPR3~0 6) (<= ~Executive~0 0) (<= ~MPR1~0 5) (<= ~FloppyThread~0 0) (= ~IPC~0 7) (= ~PagingMutex~0 0) (= ~Suspended~0 0) (= ~FloppyThread~0 0) (<= ~DC~0 2) (<= ~PagingMutex~0 0) (<= 7 ~IPC~0) (= ~DiskController~0 0) (<= 0 ~FloppyThread~0) (<= 0 ~Executive~0) (= ~MOUNTDEV_MOUNTED_DEVICE_GUID~0 0) (<= 4 ~SKIP2~0) (<= 3 ~SKIP1~0) (<= ~SKIP2~0 4)) [2019-10-04 09:29:38,661 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-04 09:29:38,661 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-04 09:29:38,662 INFO L168 Benchmark]: Toolchain (without parser) took 27280.40 ms. Allocated memory was 133.2 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 85.2 MB in the beginning and 423.7 MB in the end (delta: -338.5 MB). Peak memory consumption was 681.2 MB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,663 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 133.2 MB. Free memory was 104.7 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.44 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 85.0 MB in the beginning and 169.4 MB in the end (delta: -84.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,666 INFO L168 Benchmark]: Boogie Preprocessor took 79.43 ms. Allocated memory is still 200.3 MB. Free memory was 169.4 MB in the beginning and 165.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,667 INFO L168 Benchmark]: RCFGBuilder took 1510.38 ms. Allocated memory was 200.3 MB in the beginning and 222.3 MB in the end (delta: 22.0 MB). Free memory was 165.5 MB in the beginning and 152.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 97.5 MB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,667 INFO L168 Benchmark]: Sifa took 25027.29 ms. Allocated memory was 222.3 MB in the beginning and 1.2 GB in the end (delta: 930.6 MB). Free memory was 152.2 MB in the beginning and 423.7 MB in the end (delta: -271.5 MB). Peak memory consumption was 659.1 MB. Max. memory is 7.1 GB. [2019-10-04 09:29:38,671 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 133.2 MB. Free memory was 104.7 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.44 ms. Allocated memory was 133.2 MB in the beginning and 200.3 MB in the end (delta: 67.1 MB). Free memory was 85.0 MB in the beginning and 169.4 MB in the end (delta: -84.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.43 ms. Allocated memory is still 200.3 MB. Free memory was 169.4 MB in the beginning and 165.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1510.38 ms. Allocated memory was 200.3 MB in the beginning and 222.3 MB in the end (delta: 22.0 MB). Free memory was 165.5 MB in the beginning and 152.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 97.5 MB. Max. memory is 7.1 GB. * Sifa took 25027.29 ms. Allocated memory was 222.3 MB in the beginning and 1.2 GB in the end (delta: 930.6 MB). Free memory was 152.2 MB in the beginning and 423.7 MB in the end (delta: -271.5 MB). Peak memory consumption was 659.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 24965, ICFG_INTERPRETER_ENTERED_PROCEDURES: 11, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 947, DAG_INTERPRETER_EARLY_EXITS: 23, TOOLS_POST_APPLICATIONS: 726, TOOLS_POST_TIME[ms]: 489, TOOLS_POST_CALL_APPLICATIONS: 208, TOOLS_POST_CALL_TIME[ms]: 1349, TOOLS_POST_RETURN_APPLICATIONS: 172, TOOLS_POST_RETURN_TIME[ms]: 366, TOOLS_QUANTIFIERELIM_APPLICATIONS: 1087, TOOLS_QUANTIFIERELIM_TIME[ms]: 1765, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 148, FLUID_QUERY_TIME[ms]: 44, FLUID_QUERIES: 959, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 207, DOMAIN_JOIN_TIME[ms]: 21130, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 752, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME[ms]: 63, DOMAIN_ISBOTTOM_APPLICATIONS: 163, DOMAIN_ISBOTTOM_TIME[ms]: 466, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3393, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3392, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 172, CALL_SUMMARIZER_CACHE_MISSES: 24, CALL_SUMMARIZER_OVERALL_TIME[ms]: 8756, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 8755, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 12, PATH_EXPR_TIME[ms]: 15, REGEX_TO_DAG_TIME[ms]: 9, DAG_COMPRESSION_TIME[ms]: 114, DAG_COMPRESSION_PROCESSED_NODES: 3951, DAG_COMPRESSION_RETAINED_NODES: 1079 - UnprovableResult [Line: 64]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 2533#(and (= ~MPR1~0 5) (= ~UNLOADED~0 0) (<= ~MOUNTDEV_MOUNTED_DEVICE_GUID~0 0) (<= 0 ~DiskController~0) (= ~MPR3~0 6) (<= 0 ~UNLOADED~0) (= ~KernelMode~0 0) (= ~SKIP1~0 3) (<= ~IPC~0 7) (<= 0 ~MaximumInterfaceType~0) (<= ~NP~0 1) (<= 6 ~MPR3~0) (<= ~FloppyDiskPeripheral~0 0) (<= 0 ~PagingMutex~0) (<= 0 ~MOUNTDEV_MOUNTED_DEVICE_GUID~0) (<= 0 ~FloppyDiskPeripheral~0) (<= ~DiskController~0 0) (= ~FloppyDiskPeripheral~0 0) (<= ~KernelMode~0 0) (<= 0 ~FlConfigCallBack~0) (<= 2 ~DC~0) (= ~NP~0 1) (= ~MaximumInterfaceType~0 0) (= ~FlConfigCallBack~0 0) (<= ~SKIP1~0 3) (= ~SKIP2~0 4) (<= ~UNLOADED~0 0) (<= ~MaximumInterfaceType~0 0) (<= 1 ~NP~0) (<= ~Suspended~0 0) (<= 5 ~MPR1~0) (= ~Executive~0 0) (<= ~FlConfigCallBack~0 0) (<= 0 ~Suspended~0) (= ~DC~0 2) (<= 0 ~KernelMode~0) (<= ~MPR3~0 6) (<= ~Executive~0 0) (<= ~MPR1~0 5) (<= ~FloppyThread~0 0) (= ~IPC~0 7) (= ~PagingMutex~0 0) (= ~Suspended~0 0) (= ~FloppyThread~0 0) (<= ~DC~0 2) (<= ~PagingMutex~0 0) (<= 7 ~IPC~0) (= ~DiskController~0 0) (<= 0 ~FloppyThread~0) (<= 0 ~Executive~0) (= ~MOUNTDEV_MOUNTED_DEVICE_GUID~0 0) (<= 4 ~SKIP2~0) (<= 3 ~SKIP1~0) (<= ~SKIP2~0 4)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...