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 0.1.24-13a467a-m [2019-10-15 06:35:12,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 06:35:12,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 06:35:12,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 06:35:12,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 06:35:12,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 06:35:12,106 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 06:35:12,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 06:35:12,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 06:35:12,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 06:35:12,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 06:35:12,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 06:35:12,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 06:35:12,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 06:35:12,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 06:35:12,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 06:35:12,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 06:35:12,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 06:35:12,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 06:35:12,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 06:35:12,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 06:35:12,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 06:35:12,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 06:35:12,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 06:35:12,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 06:35:12,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 06:35:12,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 06:35:12,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 06:35:12,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 06:35:12,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 06:35:12,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 06:35:12,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 06:35:12,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 06:35:12,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 06:35:12,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 06:35:12,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 06:35:12,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 06:35:12,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 06:35:12,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 06:35:12,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 06:35:12,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 06:35:12,162 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 [2019-10-15 06:35:12,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 06:35:12,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 06:35:12,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 06:35:12,183 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 06:35:12,183 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 06:35:12,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 06:35:12,184 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 06:35:12,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 06:35:12,184 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 06:35:12,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 06:35:12,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 06:35:12,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 06:35:12,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 06:35:12,190 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 06:35:12,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 06:35:12,190 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 06:35:12,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 06:35:12,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 06:35:12,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 06:35:12,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 06:35:12,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 06:35:12,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 06:35:12,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 06:35:12,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 06:35:12,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 06:35:12,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 06:35:12,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 06:35:12,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 06:35:12,195 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 [2019-10-15 06:35:12,482 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 06:35:12,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 06:35:12,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 06:35:12,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 06:35:12,502 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 06:35:12,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2019-10-15 06:35:12,580 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26481c9b7/883b8bba63f245c9a8f5575965119ad9/FLAG1782444e8 [2019-10-15 06:35:13,173 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 06:35:13,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl3.cil-2.c [2019-10-15 06:35:13,192 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26481c9b7/883b8bba63f245c9a8f5575965119ad9/FLAG1782444e8 [2019-10-15 06:35:13,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26481c9b7/883b8bba63f245c9a8f5575965119ad9 [2019-10-15 06:35:13,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 06:35:13,491 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 06:35:13,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 06:35:13,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 06:35:13,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 06:35:13,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:13" (1/1) ... [2019-10-15 06:35:13,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aef9351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:13, skipping insertion in model container [2019-10-15 06:35:13,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:35:13" (1/1) ... [2019-10-15 06:35:13,505 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 06:35:13,569 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 06:35:13,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 06:35:14,002 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 06:35:14,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 06:35:14,137 INFO L192 MainTranslator]: Completed translation [2019-10-15 06:35:14,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14 WrapperNode [2019-10-15 06:35:14,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 06:35:14,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 06:35:14,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 06:35:14,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 06:35:14,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (1/1) ... [2019-10-15 06:35:14,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 06:35:14,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 06:35:14,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 06:35:14,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 06:35:14,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:35:14" (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 [2019-10-15 06:35:14,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2019-10-15 06:35:14,273 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2019-10-15 06:35:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2019-10-15 06:35:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2019-10-15 06:35:14,274 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2019-10-15 06:35:14,276 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2019-10-15 06:35:14,277 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2019-10-15 06:35:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 06:35:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2019-10-15 06:35:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2019-10-15 06:35:14,278 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2019-10-15 06:35:14,280 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2019-10-15 06:35:14,281 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2019-10-15 06:35:14,282 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2019-10-15 06:35:14,283 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2019-10-15 06:35:14,284 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2019-10-15 06:35:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 06:35:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2019-10-15 06:35:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2019-10-15 06:35:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 06:35:14,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 06:35:14,565 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:14,637 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:14,637 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:14,653 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:14,663 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:14,664 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:14,672 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:14,922 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-10-15 06:35:14,922 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2019-10-15 06:35:14,924 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:14,987 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2019-10-15 06:35:14,987 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2019-10-15 06:35:15,003 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,027 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-10-15 06:35:15,028 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-10-15 06:35:15,131 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,144 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,145 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,145 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,154 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,155 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,155 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,165 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,166 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,229 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,266 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2019-10-15 06:35:15,266 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2019-10-15 06:35:15,304 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,310 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,311 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,311 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,321 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,321 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,321 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-15 06:35:15,327 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-15 06:35:15,327 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-15 06:35:15,661 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 06:35:15,661 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 06:35:15,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:15 BoogieIcfgContainer [2019-10-15 06:35:15,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 06:35:15,664 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-10-15 06:35:15,664 INFO L271 PluginConnector]: Initializing Sifa... [2019-10-15 06:35:15,664 INFO L275 PluginConnector]: Sifa initialized [2019-10-15 06:35:15,665 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:35:15" (1/1) ... [2019-10-15 06:35:15,666 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 [2019-10-15 06:35:15,690 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-10-15 06:35:15,691 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 06:35:15,701 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 06:35:15,710 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 06:35:15,712 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 06:35:16,010 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 134 for LOIs [2019-10-15 06:35:18,285 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2019-10-15 06:35:18,415 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 06:35:18,600 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-10-15 06:35:19,129 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2019-10-15 06:35:19,243 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 06:35:19,394 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-10-15 06:35:20,422 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 179 [2019-10-15 06:35:20,534 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 179 [2019-10-15 06:35:20,738 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 187 [2019-10-15 06:35:21,001 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 204 [2019-10-15 06:35:22,504 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 210 [2019-10-15 06:35:26,571 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2019-10-15 06:35:28,218 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 232 [2019-10-15 06:35:28,686 INFO L199 IcfgInterpreter]: Interpreting procedure FloppyPnp with input of size 112 for LOIs [2019-10-15 06:35:32,372 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-15 06:35:32,548 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 260 [2019-10-15 06:35:33,033 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-15 06:35:33,271 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 260 [2019-10-15 06:35:33,613 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2019-10-15 06:35:34,545 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-10-15 06:35:34,990 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 228 [2019-10-15 06:35:35,229 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2019-10-15 06:35:35,380 INFO L199 IcfgInterpreter]: Interpreting procedure FloppyStartDevice with input of size 106 for LOIs [2019-10-15 06:35:35,916 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-15 06:35:37,069 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-15 06:35:37,751 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-15 06:35:38,774 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-10-15 06:35:39,467 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-10-15 06:35:39,685 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 303 [2019-10-15 06:35:39,847 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 307 [2019-10-15 06:35:39,978 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2019-10-15 06:35:40,208 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2019-10-15 06:35:40,660 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-10-15 06:35:40,864 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2019-10-15 06:35:41,027 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 306 [2019-10-15 06:35:41,550 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-15 06:35:41,770 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2019-10-15 06:35:41,928 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 306 [2019-10-15 06:35:42,050 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2019-10-15 06:35:42,159 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2019-10-15 06:35:42,325 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 301 [2019-10-15 06:35:42,601 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-10-15 06:35:43,067 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 307 [2019-10-15 06:35:43,119 INFO L199 IcfgInterpreter]: Interpreting procedure FlFdcDeviceIo with input of size 128 for LOIs [2019-10-15 06:35:43,294 INFO L199 IcfgInterpreter]: Interpreting procedure IofCallDriver with input of size 146 for LOIs [2019-10-15 06:35:43,542 INFO L199 IcfgInterpreter]: Interpreting procedure stubMoreProcessingRequired with input of size 130 for LOIs [2019-10-15 06:35:43,576 INFO L199 IcfgInterpreter]: Interpreting procedure FlQueueIrpToThread with input of size 123 for LOIs [2019-10-15 06:35:43,664 INFO L199 IcfgInterpreter]: Interpreting procedure IofCompleteRequest with input of size 96 for LOIs [2019-10-15 06:35:43,700 INFO L199 IcfgInterpreter]: Interpreting procedure KeWaitForSingleObject with input of size 152 for LOIs [2019-10-15 06:35:43,823 INFO L199 IcfgInterpreter]: Interpreting procedure errorFn with input of size 81 for LOIs [2019-10-15 06:35:43,839 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 06:35:43,849 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-10-15 06:35:43,850 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-10-15 06:35:43,851 INFO L168 Benchmark]: Toolchain (without parser) took 30360.12 ms. Allocated memory was 147.3 MB in the beginning and 956.3 MB in the end (delta: 809.0 MB). Free memory was 104.1 MB in the beginning and 234.8 MB in the end (delta: -130.8 MB). Peak memory consumption was 678.2 MB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,852 INFO L168 Benchmark]: CDTParser took 1.29 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.77 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 172.3 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,854 INFO L168 Benchmark]: Boogie Preprocessor took 79.21 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,855 INFO L168 Benchmark]: RCFGBuilder took 1446.05 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 168.4 MB in the beginning and 147.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,856 INFO L168 Benchmark]: Sifa took 28186.02 ms. Allocated memory was 233.8 MB in the beginning and 956.3 MB in the end (delta: 722.5 MB). Free memory was 147.8 MB in the beginning and 234.8 MB in the end (delta: -87.1 MB). Peak memory consumption was 635.4 MB. Max. memory is 7.1 GB. [2019-10-15 06:35:43,860 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29 ms. Allocated memory is still 147.3 MB. Free memory was 123.7 MB in the beginning and 123.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.77 ms. Allocated memory was 147.3 MB in the beginning and 203.4 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 172.3 MB in the end (delta: -68.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 79.21 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 168.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1446.05 ms. Allocated memory was 203.4 MB in the beginning and 233.8 MB in the end (delta: 30.4 MB). Free memory was 168.4 MB in the beginning and 147.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * Sifa took 28186.02 ms. Allocated memory was 233.8 MB in the beginning and 956.3 MB in the end (delta: 722.5 MB). Free memory was 147.8 MB in the beginning and 234.8 MB in the end (delta: -87.1 MB). Peak memory consumption was 635.4 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]: 28149, ICFG_INTERPRETER_ENTERED_PROCEDURES: 11, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 947, DAG_INTERPRETER_EARLY_EXITS: 23, TOOLS_POST_APPLICATIONS: 726, TOOLS_POST_TIME[ms]: 550, TOOLS_POST_CALL_APPLICATIONS: 208, TOOLS_POST_CALL_TIME[ms]: 1583, TOOLS_POST_RETURN_APPLICATIONS: 172, TOOLS_POST_RETURN_TIME[ms]: 407, TOOLS_QUANTIFIERELIM_APPLICATIONS: 1087, TOOLS_QUANTIFIERELIM_TIME[ms]: 2046, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 206, FLUID_QUERY_TIME[ms]: 45, FLUID_QUERIES: 959, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 207, DOMAIN_JOIN_TIME[ms]: 23831, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME[ms]: 836, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME[ms]: 68, DOMAIN_ISBOTTOM_APPLICATIONS: 163, DOMAIN_ISBOTTOM_TIME[ms]: 520, LOOP_SUMMARIZER_APPLICATIONS: 6, LOOP_SUMMARIZER_CACHE_MISSES: 6, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 3678, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 3677, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 172, CALL_SUMMARIZER_CACHE_MISSES: 24, CALL_SUMMARIZER_OVERALL_TIME[ms]: 10321, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 10320, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 8, PATH_EXPR_TIME[ms]: 13, REGEX_TO_DAG_TIME[ms]: 8, DAG_COMPRESSION_TIME[ms]: 119, 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 2534#(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...