java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 10:48:22,316 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 10:48:22,318 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 10:48:22,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 10:48:22,334 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 10:48:22,335 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 10:48:22,336 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 10:48:22,338 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 10:48:22,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 10:48:22,340 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 10:48:22,341 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 10:48:22,342 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 10:48:22,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 10:48:22,344 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 10:48:22,345 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 10:48:22,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 10:48:22,347 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 10:48:22,348 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 10:48:22,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 10:48:22,352 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 10:48:22,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 10:48:22,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 10:48:22,357 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 10:48:22,358 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 10:48:22,358 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 10:48:22,359 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 10:48:22,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 10:48:22,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 10:48:22,362 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 10:48:22,363 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 10:48:22,363 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 10:48:22,364 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 10:48:22,364 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 10:48:22,364 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 10:48:22,365 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 10:48:22,366 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 10:48:22,366 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 10:48:22,385 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 10:48:22,385 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 10:48:22,386 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 10:48:22,386 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 10:48:22,387 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 10:48:22,387 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 10:48:22,387 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 10:48:22,387 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 10:48:22,387 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 10:48:22,388 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 10:48:22,388 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 10:48:22,388 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 10:48:22,388 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 10:48:22,388 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 10:48:22,389 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 10:48:22,390 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 10:48:22,390 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 10:48:22,393 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 10:48:22,393 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 10:48:22,393 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 10:48:22,393 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 10:48:22,394 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 10:48:22,394 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 10:48:22,394 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 10:48:22,394 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 10:48:22,394 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 10:48:22,395 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 10:48:22,395 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 10:48:22,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 10:48:22,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 10:48:22,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 10:48:22,465 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 10:48:22,465 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 10:48:22,466 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-23 10:48:22,534 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c7a9676/98ba221364de4f81a82759e398fb6546/FLAGf0c5909bd [2018-11-23 10:48:23,104 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 10:48:23,105 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-23 10:48:23,127 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c7a9676/98ba221364de4f81a82759e398fb6546/FLAGf0c5909bd [2018-11-23 10:48:23,346 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8c7a9676/98ba221364de4f81a82759e398fb6546 [2018-11-23 10:48:23,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 10:48:23,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 10:48:23,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 10:48:23,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 10:48:23,366 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 10:48:23,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:23" (1/1) ... [2018-11-23 10:48:23,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b317f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:23, skipping insertion in model container [2018-11-23 10:48:23,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:48:23" (1/1) ... [2018-11-23 10:48:23,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 10:48:23,467 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 10:48:24,045 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:48:24,052 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 10:48:24,225 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 10:48:24,262 INFO L195 MainTranslator]: Completed translation [2018-11-23 10:48:24,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24 WrapperNode [2018-11-23 10:48:24,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 10:48:24,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 10:48:24,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 10:48:24,264 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 10:48:24,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 10:48:24,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 10:48:24,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 10:48:24,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 10:48:24,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,422 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (1/1) ... [2018-11-23 10:48:24,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 10:48:24,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 10:48:24,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 10:48:24,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 10:48:24,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (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 [2018-11-23 10:48:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2018-11-23 10:48:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2018-11-23 10:48:24,597 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2018-11-23 10:48:24,597 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2018-11-23 10:48:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2018-11-23 10:48:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2018-11-23 10:48:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2018-11-23 10:48:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2018-11-23 10:48:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 10:48:24,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 10:48:24,598 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2018-11-23 10:48:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2018-11-23 10:48:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2018-11-23 10:48:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2018-11-23 10:48:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2018-11-23 10:48:24,599 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2018-11-23 10:48:24,599 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2018-11-23 10:48:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2018-11-23 10:48:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2018-11-23 10:48:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2018-11-23 10:48:24,600 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2018-11-23 10:48:24,600 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2018-11-23 10:48:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2018-11-23 10:48:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2018-11-23 10:48:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2018-11-23 10:48:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2018-11-23 10:48:24,603 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2018-11-23 10:48:24,603 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2018-11-23 10:48:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2018-11-23 10:48:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2018-11-23 10:48:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2018-11-23 10:48:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2018-11-23 10:48:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2018-11-23 10:48:24,604 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2018-11-23 10:48:24,604 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2018-11-23 10:48:24,606 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2018-11-23 10:48:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2018-11-23 10:48:24,607 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2018-11-23 10:48:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2018-11-23 10:48:24,607 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2018-11-23 10:48:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2018-11-23 10:48:24,607 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2018-11-23 10:48:24,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 10:48:24,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 10:48:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2018-11-23 10:48:24,608 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2018-11-23 10:48:24,608 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2018-11-23 10:48:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2018-11-23 10:48:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2018-11-23 10:48:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2018-11-23 10:48:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 10:48:24,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 10:48:24,609 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2018-11-23 10:48:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2018-11-23 10:48:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2018-11-23 10:48:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2018-11-23 10:48:24,610 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2018-11-23 10:48:24,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2018-11-23 10:48:24,996 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:24,996 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:25,233 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:25,234 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:25,306 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:25,306 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:26,288 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:26,289 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:26,642 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:26,642 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,053 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,053 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,097 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,098 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,127 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,128 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,193 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,194 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,494 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,495 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:27,993 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:27,993 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:28,026 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:28,027 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:28,079 WARN L640 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-23 10:48:28,080 WARN L605 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-23 10:48:28,318 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 10:48:28,319 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 10:48:28,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:28 BoogieIcfgContainer [2018-11-23 10:48:28,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 10:48:28,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 10:48:28,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 10:48:28,324 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 10:48:28,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:48:23" (1/3) ... [2018-11-23 10:48:28,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef3d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:28, skipping insertion in model container [2018-11-23 10:48:28,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:48:24" (2/3) ... [2018-11-23 10:48:28,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31ef3d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:48:28, skipping insertion in model container [2018-11-23 10:48:28,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:48:28" (3/3) ... [2018-11-23 10:48:28,328 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-23 10:48:28,337 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 10:48:28,346 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 10:48:28,364 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 10:48:28,403 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 10:48:28,404 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 10:48:28,404 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 10:48:28,404 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 10:48:28,405 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 10:48:28,405 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 10:48:28,405 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 10:48:28,405 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 10:48:28,405 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 10:48:28,443 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states. [2018-11-23 10:48:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 10:48:28,451 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:28,452 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:28,454 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:28,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:28,460 INFO L82 PathProgramCache]: Analyzing trace with hash 778859383, now seen corresponding path program 1 times [2018-11-23 10:48:28,464 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:28,465 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:28,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:28,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:28,770 INFO L256 TraceCheckUtils]: 0: Hoare triple {393#true} call ULTIMATE.init(); {393#true} is VALID [2018-11-23 10:48:28,774 INFO L273 TraceCheckUtils]: 1: Hoare triple {393#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {393#true} is VALID [2018-11-23 10:48:28,774 INFO L273 TraceCheckUtils]: 2: Hoare triple {393#true} assume true; {393#true} is VALID [2018-11-23 10:48:28,775 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {393#true} {393#true} #1155#return; {393#true} is VALID [2018-11-23 10:48:28,775 INFO L256 TraceCheckUtils]: 4: Hoare triple {393#true} call #t~ret166 := main(); {393#true} is VALID [2018-11-23 10:48:28,775 INFO L273 TraceCheckUtils]: 5: Hoare triple {393#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {393#true} is VALID [2018-11-23 10:48:28,776 INFO L256 TraceCheckUtils]: 6: Hoare triple {393#true} call _BLAST_init(); {393#true} is VALID [2018-11-23 10:48:28,777 INFO L273 TraceCheckUtils]: 7: Hoare triple {393#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,778 INFO L273 TraceCheckUtils]: 8: Hoare triple {419#(= ~UNLOADED~0 ~s~0)} assume true; {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,780 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {419#(= ~UNLOADED~0 ~s~0)} {393#true} #1063#return; {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,783 INFO L273 TraceCheckUtils]: 10: Hoare triple {419#(= ~UNLOADED~0 ~s~0)} assume !~bvsge32(~status~1, 0bv32); {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,798 INFO L273 TraceCheckUtils]: 11: Hoare triple {419#(= ~UNLOADED~0 ~s~0)} assume !(1bv32 == ~pended~0); {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,815 INFO L273 TraceCheckUtils]: 12: Hoare triple {419#(= ~UNLOADED~0 ~s~0)} assume !(1bv32 == ~pended~0); {419#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-23 10:48:28,826 INFO L273 TraceCheckUtils]: 13: Hoare triple {419#(= ~UNLOADED~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {394#false} is VALID [2018-11-23 10:48:28,826 INFO L273 TraceCheckUtils]: 14: Hoare triple {394#false} assume 4294967295bv32 != ~status~1; {394#false} is VALID [2018-11-23 10:48:28,827 INFO L273 TraceCheckUtils]: 15: Hoare triple {394#false} assume !(~s~0 != ~SKIP2~0); {394#false} is VALID [2018-11-23 10:48:28,827 INFO L273 TraceCheckUtils]: 16: Hoare triple {394#false} assume 1bv32 == ~pended~0; {394#false} is VALID [2018-11-23 10:48:28,828 INFO L273 TraceCheckUtils]: 17: Hoare triple {394#false} assume 259bv32 != ~status~1; {394#false} is VALID [2018-11-23 10:48:28,828 INFO L256 TraceCheckUtils]: 18: Hoare triple {394#false} call errorFn(); {394#false} is VALID [2018-11-23 10:48:28,828 INFO L273 TraceCheckUtils]: 19: Hoare triple {394#false} assume !false; {394#false} is VALID [2018-11-23 10:48:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:28,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-11-23 10:48:28,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:28,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:28,849 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-23 10:48:28,853 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:28,857 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:28,993 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:28,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:29,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:29,005 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 3 states. [2018-11-23 10:48:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:31,632 INFO L93 Difference]: Finished difference Result 635 states and 926 transitions. [2018-11-23 10:48:31,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:48:31,632 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-23 10:48:31,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:48:31,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2018-11-23 10:48:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 926 transitions. [2018-11-23 10:48:31,702 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 926 transitions. [2018-11-23 10:48:33,104 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 926 edges. 926 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:33,154 INFO L225 Difference]: With dead ends: 635 [2018-11-23 10:48:33,154 INFO L226 Difference]: Without dead ends: 382 [2018-11-23 10:48:33,163 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:33,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2018-11-23 10:48:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2018-11-23 10:48:33,860 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:48:33,861 INFO L82 GeneralOperation]: Start isEquivalent. First operand 382 states. Second operand 382 states. [2018-11-23 10:48:33,861 INFO L74 IsIncluded]: Start isIncluded. First operand 382 states. Second operand 382 states. [2018-11-23 10:48:33,861 INFO L87 Difference]: Start difference. First operand 382 states. Second operand 382 states. [2018-11-23 10:48:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:33,888 INFO L93 Difference]: Finished difference Result 382 states and 526 transitions. [2018-11-23 10:48:33,888 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2018-11-23 10:48:33,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:33,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:33,897 INFO L74 IsIncluded]: Start isIncluded. First operand 382 states. Second operand 382 states. [2018-11-23 10:48:33,897 INFO L87 Difference]: Start difference. First operand 382 states. Second operand 382 states. [2018-11-23 10:48:33,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:33,922 INFO L93 Difference]: Finished difference Result 382 states and 526 transitions. [2018-11-23 10:48:33,922 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2018-11-23 10:48:33,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:33,926 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:33,926 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:48:33,927 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:48:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2018-11-23 10:48:33,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2018-11-23 10:48:33,953 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2018-11-23 10:48:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:48:33,954 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2018-11-23 10:48:33,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:48:33,954 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2018-11-23 10:48:33,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 10:48:33,955 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:33,955 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:33,956 INFO L423 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:33,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:33,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1420696150, now seen corresponding path program 1 times [2018-11-23 10:48:33,957 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:33,957 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:33,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:34,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:34,371 INFO L256 TraceCheckUtils]: 0: Hoare triple {2603#true} call ULTIMATE.init(); {2603#true} is VALID [2018-11-23 10:48:34,372 INFO L273 TraceCheckUtils]: 1: Hoare triple {2603#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {2603#true} is VALID [2018-11-23 10:48:34,372 INFO L273 TraceCheckUtils]: 2: Hoare triple {2603#true} assume true; {2603#true} is VALID [2018-11-23 10:48:34,373 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2603#true} {2603#true} #1155#return; {2603#true} is VALID [2018-11-23 10:48:34,373 INFO L256 TraceCheckUtils]: 4: Hoare triple {2603#true} call #t~ret166 := main(); {2603#true} is VALID [2018-11-23 10:48:34,373 INFO L273 TraceCheckUtils]: 5: Hoare triple {2603#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {2603#true} is VALID [2018-11-23 10:48:34,373 INFO L256 TraceCheckUtils]: 6: Hoare triple {2603#true} call _BLAST_init(); {2603#true} is VALID [2018-11-23 10:48:34,374 INFO L273 TraceCheckUtils]: 7: Hoare triple {2603#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {2603#true} is VALID [2018-11-23 10:48:34,374 INFO L273 TraceCheckUtils]: 8: Hoare triple {2603#true} assume true; {2603#true} is VALID [2018-11-23 10:48:34,374 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {2603#true} {2603#true} #1063#return; {2603#true} is VALID [2018-11-23 10:48:34,375 INFO L273 TraceCheckUtils]: 10: Hoare triple {2603#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {2603#true} is VALID [2018-11-23 10:48:34,375 INFO L273 TraceCheckUtils]: 11: Hoare triple {2603#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {2603#true} is VALID [2018-11-23 10:48:34,375 INFO L256 TraceCheckUtils]: 12: Hoare triple {2603#true} call stub_driver_init(); {2603#true} is VALID [2018-11-23 10:48:34,388 INFO L273 TraceCheckUtils]: 13: Hoare triple {2603#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,401 INFO L273 TraceCheckUtils]: 14: Hoare triple {2647#(= ~NP~0 ~s~0)} assume true; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,414 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {2647#(= ~NP~0 ~s~0)} {2603#true} #1065#return; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,433 INFO L273 TraceCheckUtils]: 16: Hoare triple {2647#(= ~NP~0 ~s~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,443 INFO L273 TraceCheckUtils]: 17: Hoare triple {2647#(= ~NP~0 ~s~0)} assume 0bv32 == ~tmp_ndt_1~0; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,456 INFO L256 TraceCheckUtils]: 18: Hoare triple {2647#(= ~NP~0 ~s~0)} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,469 INFO L273 TraceCheckUtils]: 19: Hoare triple {2647#(= ~NP~0 ~s~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,482 INFO L256 TraceCheckUtils]: 20: Hoare triple {2647#(= ~NP~0 ~s~0)} call IofCompleteRequest(~Irp, 0bv32); {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,496 INFO L273 TraceCheckUtils]: 21: Hoare triple {2647#(= ~NP~0 ~s~0)} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {2647#(= ~NP~0 ~s~0)} is VALID [2018-11-23 10:48:34,510 INFO L273 TraceCheckUtils]: 22: Hoare triple {2647#(= ~NP~0 ~s~0)} assume !(~s~0 == ~NP~0); {2604#false} is VALID [2018-11-23 10:48:34,510 INFO L256 TraceCheckUtils]: 23: Hoare triple {2604#false} call errorFn(); {2604#false} is VALID [2018-11-23 10:48:34,511 INFO L273 TraceCheckUtils]: 24: Hoare triple {2604#false} assume !false; {2604#false} is VALID [2018-11-23 10:48:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:34,516 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:48:34,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:34,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:34,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 10:48:34,524 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:34,524 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:34,854 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:34,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:34,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:34,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:34,855 INFO L87 Difference]: Start difference. First operand 382 states and 526 transitions. Second operand 3 states. [2018-11-23 10:48:37,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:37,078 INFO L93 Difference]: Finished difference Result 705 states and 959 transitions. [2018-11-23 10:48:37,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:48:37,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-23 10:48:37,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:48:37,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2018-11-23 10:48:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 959 transitions. [2018-11-23 10:48:37,117 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 959 transitions. [2018-11-23 10:48:38,454 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 959 edges. 959 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:38,487 INFO L225 Difference]: With dead ends: 705 [2018-11-23 10:48:38,488 INFO L226 Difference]: Without dead ends: 540 [2018-11-23 10:48:38,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:38,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2018-11-23 10:48:38,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 521. [2018-11-23 10:48:38,875 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:48:38,875 INFO L82 GeneralOperation]: Start isEquivalent. First operand 540 states. Second operand 521 states. [2018-11-23 10:48:38,875 INFO L74 IsIncluded]: Start isIncluded. First operand 540 states. Second operand 521 states. [2018-11-23 10:48:38,876 INFO L87 Difference]: Start difference. First operand 540 states. Second operand 521 states. [2018-11-23 10:48:38,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:38,911 INFO L93 Difference]: Finished difference Result 540 states and 733 transitions. [2018-11-23 10:48:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 733 transitions. [2018-11-23 10:48:38,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:38,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:38,915 INFO L74 IsIncluded]: Start isIncluded. First operand 521 states. Second operand 540 states. [2018-11-23 10:48:38,915 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 540 states. [2018-11-23 10:48:38,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:38,947 INFO L93 Difference]: Finished difference Result 540 states and 733 transitions. [2018-11-23 10:48:38,947 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 733 transitions. [2018-11-23 10:48:38,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:38,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:38,951 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:48:38,951 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:48:38,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2018-11-23 10:48:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 709 transitions. [2018-11-23 10:48:38,983 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 709 transitions. Word has length 25 [2018-11-23 10:48:38,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:48:38,983 INFO L480 AbstractCegarLoop]: Abstraction has 521 states and 709 transitions. [2018-11-23 10:48:38,983 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:48:38,984 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 709 transitions. [2018-11-23 10:48:38,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 10:48:38,985 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:38,985 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:38,985 INFO L423 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:38,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:38,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1219018070, now seen corresponding path program 1 times [2018-11-23 10:48:38,987 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:38,987 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:39,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:39,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:39,271 INFO L256 TraceCheckUtils]: 0: Hoare triple {5432#true} call ULTIMATE.init(); {5432#true} is VALID [2018-11-23 10:48:39,272 INFO L273 TraceCheckUtils]: 1: Hoare triple {5432#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {5432#true} is VALID [2018-11-23 10:48:39,272 INFO L273 TraceCheckUtils]: 2: Hoare triple {5432#true} assume true; {5432#true} is VALID [2018-11-23 10:48:39,272 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5432#true} {5432#true} #1155#return; {5432#true} is VALID [2018-11-23 10:48:39,273 INFO L256 TraceCheckUtils]: 4: Hoare triple {5432#true} call #t~ret166 := main(); {5432#true} is VALID [2018-11-23 10:48:39,273 INFO L273 TraceCheckUtils]: 5: Hoare triple {5432#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {5432#true} is VALID [2018-11-23 10:48:39,274 INFO L256 TraceCheckUtils]: 6: Hoare triple {5432#true} call _BLAST_init(); {5432#true} is VALID [2018-11-23 10:48:39,274 INFO L273 TraceCheckUtils]: 7: Hoare triple {5432#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {5432#true} is VALID [2018-11-23 10:48:39,274 INFO L273 TraceCheckUtils]: 8: Hoare triple {5432#true} assume true; {5432#true} is VALID [2018-11-23 10:48:39,275 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {5432#true} {5432#true} #1063#return; {5432#true} is VALID [2018-11-23 10:48:39,275 INFO L273 TraceCheckUtils]: 10: Hoare triple {5432#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {5432#true} is VALID [2018-11-23 10:48:39,275 INFO L273 TraceCheckUtils]: 11: Hoare triple {5432#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {5432#true} is VALID [2018-11-23 10:48:39,275 INFO L256 TraceCheckUtils]: 12: Hoare triple {5432#true} call stub_driver_init(); {5432#true} is VALID [2018-11-23 10:48:39,277 INFO L273 TraceCheckUtils]: 13: Hoare triple {5432#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,278 INFO L273 TraceCheckUtils]: 14: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume true; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,279 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {5476#(= (_ bv0 32) ~pended~0)} {5432#true} #1065#return; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,279 INFO L273 TraceCheckUtils]: 16: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,281 INFO L273 TraceCheckUtils]: 17: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,282 INFO L273 TraceCheckUtils]: 18: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,282 INFO L273 TraceCheckUtils]: 19: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume 2bv32 == ~tmp_ndt_3~0; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,283 INFO L256 TraceCheckUtils]: 20: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,284 INFO L273 TraceCheckUtils]: 21: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,290 INFO L273 TraceCheckUtils]: 22: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume 0bv32 != ~disketteExtension__HoldNewRequests~2; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,290 INFO L273 TraceCheckUtils]: 23: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 != ~__cil_tmp41~0; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,291 INFO L256 TraceCheckUtils]: 24: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} call #t~ret151 := FloppyQueueRequest(~disketteExtension~2, ~Irp); {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,292 INFO L273 TraceCheckUtils]: 25: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} ~DisketteExtension := #in~DisketteExtension;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~4;havoc ~Irp__IoStatus__Information~4;havoc ~Irp__Tail__Overlay__CurrentStackLocation__Control~1;havoc ~ntStatus~4;~FAKE_CONDITION~1 := #t~nondet163;havoc #t~nondet163;#t~post164 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post164);havoc #t~post164; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,292 INFO L273 TraceCheckUtils]: 26: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume 1bv32 == ~PagingReferenceCount~0; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,293 INFO L273 TraceCheckUtils]: 27: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume !(0bv32 != ~FAKE_CONDITION~1);~Irp__IoStatus__Status~4 := 259bv32;~myStatus~0 := 259bv32; {5476#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-23 10:48:39,293 INFO L273 TraceCheckUtils]: 28: Hoare triple {5476#(= (_ bv0 32) ~pended~0)} assume !(0bv32 == ~pended~0); {5433#false} is VALID [2018-11-23 10:48:39,293 INFO L256 TraceCheckUtils]: 29: Hoare triple {5433#false} call errorFn(); {5433#false} is VALID [2018-11-23 10:48:39,293 INFO L273 TraceCheckUtils]: 30: Hoare triple {5433#false} assume !false; {5433#false} is VALID [2018-11-23 10:48:39,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:39,295 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:48:39,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:39,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:39,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-23 10:48:39,299 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:39,299 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:39,347 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:39,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:39,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:39,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:39,348 INFO L87 Difference]: Start difference. First operand 521 states and 709 transitions. Second operand 3 states. [2018-11-23 10:48:42,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:42,148 INFO L93 Difference]: Finished difference Result 646 states and 866 transitions. [2018-11-23 10:48:42,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:48:42,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-23 10:48:42,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:48:42,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2018-11-23 10:48:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:42,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 651 transitions. [2018-11-23 10:48:42,171 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 651 transitions. [2018-11-23 10:48:43,627 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 651 edges. 651 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:43,660 INFO L225 Difference]: With dead ends: 646 [2018-11-23 10:48:43,660 INFO L226 Difference]: Without dead ends: 625 [2018-11-23 10:48:43,661 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:43,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2018-11-23 10:48:44,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 585. [2018-11-23 10:48:44,240 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:48:44,240 INFO L82 GeneralOperation]: Start isEquivalent. First operand 625 states. Second operand 585 states. [2018-11-23 10:48:44,240 INFO L74 IsIncluded]: Start isIncluded. First operand 625 states. Second operand 585 states. [2018-11-23 10:48:44,240 INFO L87 Difference]: Start difference. First operand 625 states. Second operand 585 states. [2018-11-23 10:48:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:44,273 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2018-11-23 10:48:44,273 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 835 transitions. [2018-11-23 10:48:44,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:44,276 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:44,277 INFO L74 IsIncluded]: Start isIncluded. First operand 585 states. Second operand 625 states. [2018-11-23 10:48:44,277 INFO L87 Difference]: Start difference. First operand 585 states. Second operand 625 states. [2018-11-23 10:48:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:44,313 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2018-11-23 10:48:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 835 transitions. [2018-11-23 10:48:44,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:44,317 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:44,317 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:48:44,318 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:48:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2018-11-23 10:48:44,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 792 transitions. [2018-11-23 10:48:44,352 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 792 transitions. Word has length 31 [2018-11-23 10:48:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:48:44,352 INFO L480 AbstractCegarLoop]: Abstraction has 585 states and 792 transitions. [2018-11-23 10:48:44,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:48:44,353 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 792 transitions. [2018-11-23 10:48:44,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 10:48:44,356 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:44,356 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:44,356 INFO L423 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:44,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:44,357 INFO L82 PathProgramCache]: Analyzing trace with hash 401481508, now seen corresponding path program 1 times [2018-11-23 10:48:44,357 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:44,357 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:44,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:44,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:45,093 INFO L256 TraceCheckUtils]: 0: Hoare triple {8439#true} call ULTIMATE.init(); {8439#true} is VALID [2018-11-23 10:48:45,093 INFO L273 TraceCheckUtils]: 1: Hoare triple {8439#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {8439#true} is VALID [2018-11-23 10:48:45,095 INFO L273 TraceCheckUtils]: 2: Hoare triple {8439#true} assume true; {8439#true} is VALID [2018-11-23 10:48:45,095 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {8439#true} {8439#true} #1155#return; {8439#true} is VALID [2018-11-23 10:48:45,096 INFO L256 TraceCheckUtils]: 4: Hoare triple {8439#true} call #t~ret166 := main(); {8439#true} is VALID [2018-11-23 10:48:45,096 INFO L273 TraceCheckUtils]: 5: Hoare triple {8439#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {8439#true} is VALID [2018-11-23 10:48:45,096 INFO L256 TraceCheckUtils]: 6: Hoare triple {8439#true} call _BLAST_init(); {8439#true} is VALID [2018-11-23 10:48:45,096 INFO L273 TraceCheckUtils]: 7: Hoare triple {8439#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {8439#true} is VALID [2018-11-23 10:48:45,097 INFO L273 TraceCheckUtils]: 8: Hoare triple {8439#true} assume true; {8439#true} is VALID [2018-11-23 10:48:45,097 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {8439#true} {8439#true} #1063#return; {8439#true} is VALID [2018-11-23 10:48:45,097 INFO L273 TraceCheckUtils]: 10: Hoare triple {8439#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {8439#true} is VALID [2018-11-23 10:48:45,098 INFO L273 TraceCheckUtils]: 11: Hoare triple {8439#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {8439#true} is VALID [2018-11-23 10:48:45,098 INFO L256 TraceCheckUtils]: 12: Hoare triple {8439#true} call stub_driver_init(); {8439#true} is VALID [2018-11-23 10:48:45,098 INFO L273 TraceCheckUtils]: 13: Hoare triple {8439#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,100 INFO L273 TraceCheckUtils]: 14: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume true; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,102 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {8483#(= (_ bv0 32) ~compRegistered~0)} {8439#true} #1065#return; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,102 INFO L273 TraceCheckUtils]: 16: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,104 INFO L273 TraceCheckUtils]: 17: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,104 INFO L273 TraceCheckUtils]: 18: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,106 INFO L273 TraceCheckUtils]: 19: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,106 INFO L273 TraceCheckUtils]: 20: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume 3bv32 == ~tmp_ndt_4~0; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,107 INFO L256 TraceCheckUtils]: 21: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,107 INFO L273 TraceCheckUtils]: 22: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~0 := #t~nondet12;havoc #t~nondet12;~Irp__Tail__Overlay__CurrentStackLocation~0 := #t~nondet13;havoc #t~nondet13;havoc ~Irp__IoStatus__Information~1;havoc ~Irp__IoStatus__Status~1;~Irp__CurrentLocation~0 := #t~nondet14;havoc #t~nondet14;~disketteExtension__IsRemoved~0 := #t~nondet15;havoc #t~nondet15;~disketteExtension__IsStarted~0 := #t~nondet16;havoc #t~nondet16;~disketteExtension__TargetObject~0 := #t~nondet17;havoc #t~nondet17;havoc ~disketteExtension__HoldNewRequests~0;~disketteExtension__FloppyThread~0 := #t~nondet18;havoc #t~nondet18;~disketteExtension__InterfaceString__Buffer~0 := #t~nondet19;havoc #t~nondet19;~disketteExtension__InterfaceString~0 := #t~nondet20;havoc #t~nondet20;~disketteExtension__ArcName__Length~0 := #t~nondet21;havoc #t~nondet21;~disketteExtension__ArcName~0 := #t~nondet22;havoc #t~nondet22;~irpSp__MinorFunction~0 := #t~nondet23;havoc #t~nondet23;~IoGetConfigurationInformation__FloppyCount~0 := #t~nondet24;havoc #t~nondet24;havoc ~irpSp~0;havoc ~disketteExtension~0;havoc ~ntStatus~0;~doneEvent~0 := #t~nondet25;havoc #t~nondet25;havoc ~irpSp___0~0;havoc ~nextIrpSp~0;havoc ~nextIrpSp__Control~0;havoc ~irpSp___1~0;havoc ~irpSp__Context~0;havoc ~irpSp__Control~0;havoc ~__cil_tmp29~0;havoc ~__cil_tmp30~0;~ntStatus~0 := 0bv32;#t~post26 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post26);havoc #t~post26; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,117 INFO L273 TraceCheckUtils]: 23: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume 1bv32 == ~PagingReferenceCount~0; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,118 INFO L273 TraceCheckUtils]: 24: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,118 INFO L273 TraceCheckUtils]: 25: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,119 INFO L273 TraceCheckUtils]: 26: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume 0bv32 == ~irpSp__MinorFunction~0; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,119 INFO L256 TraceCheckUtils]: 27: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} call #t~ret27 := FloppyStartDevice(~DeviceObject, ~Irp); {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,126 INFO L273 TraceCheckUtils]: 28: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~1 := #t~nondet54;havoc #t~nondet54;~Irp__Tail__Overlay__CurrentStackLocation~1 := #t~nondet55;havoc #t~nondet55;havoc ~Irp__IoStatus__Status~2;~disketteExtension__TargetObject~1 := #t~nondet56;havoc #t~nondet56;havoc ~disketteExtension__MaxTransferSize~0;~disketteExtension__DriveType~0 := #t~nondet57;havoc #t~nondet57;havoc ~disketteExtension__PerpendicularMode~0;havoc ~disketteExtension__DeviceUnit~0;havoc ~disketteExtension__DriveOnValue~0;~disketteExtension__UnderlyingPDO~0 := #t~nondet58;havoc #t~nondet58;~disketteExtension__InterfaceString~1 := #t~nondet59;havoc #t~nondet59;havoc ~disketteExtension__IsStarted~1;havoc ~disketteExtension__HoldNewRequests~1;havoc ~ntStatus~1;havoc ~pnpStatus~0;~doneEvent~1 := #t~nondet60;havoc #t~nondet60;~fdcInfo~0 := #t~nondet61;havoc #t~nondet61;havoc ~fdcInfo__BufferCount~0;havoc ~fdcInfo__BufferSize~0;~fdcInfo__MaxTransferSize~0 := #t~nondet62;havoc #t~nondet62;~fdcInfo__AcpiBios~0 := #t~nondet63;havoc #t~nondet63;~fdcInfo__AcpiFdiSupported~0 := #t~nondet64;havoc #t~nondet64;~fdcInfo__PeripheralNumber~0 := #t~nondet65;havoc #t~nondet65;havoc ~fdcInfo__BusType~0;~fdcInfo__ControllerNumber~0 := #t~nondet66;havoc #t~nondet66;~fdcInfo__UnitNumber~0 := #t~nondet67;havoc #t~nondet67;~fdcInfo__BusNumber~0 := #t~nondet68;havoc #t~nondet68;havoc ~Dc~0;havoc ~Fp~0;havoc ~disketteExtension~1;havoc ~irpSp~1;havoc ~irpSp___0~1;havoc ~nextIrpSp~1;havoc ~nextIrpSp__Control~1;havoc ~irpSp___1~1;havoc ~irpSp__Control~1;havoc ~irpSp__Context~1;havoc ~InterfaceType~0;~KUSER_SHARED_DATA__AlternativeArchitecture_NEC98x86~0 := #t~nondet69;havoc #t~nondet69;havoc ~__cil_tmp42~0;havoc ~__cil_tmp43~0;havoc ~__cil_tmp44~0;havoc ~__cil_tmp45~0;~__cil_tmp46~0 := #t~nondet70;havoc #t~nondet70;havoc ~__cil_tmp47~0;havoc ~__cil_tmp48~0;havoc ~__cil_tmp49~0;~Dc~0 := ~DiskController~0;~Fp~0 := ~FloppyDiskPeripheral~0;~disketteExtension~1 := ~DeviceObject__DeviceExtension~1;~irpSp~1 := ~Irp__Tail__Overlay__CurrentStackLocation~1;~irpSp___0~1 := ~Irp__Tail__Overlay__CurrentStackLocation~1;~nextIrpSp~1 := ~bvsub32(~Irp__Tail__Overlay__CurrentStackLocation~1, 1bv32);~nextIrpSp__Control~1 := 0bv32; {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,135 INFO L273 TraceCheckUtils]: 29: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume !(~s~0 != ~NP~0); {8483#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-23 10:48:45,137 INFO L273 TraceCheckUtils]: 30: Hoare triple {8483#(= (_ bv0 32) ~compRegistered~0)} assume 0bv32 != ~compRegistered~0; {8440#false} is VALID [2018-11-23 10:48:45,137 INFO L256 TraceCheckUtils]: 31: Hoare triple {8440#false} call errorFn(); {8440#false} is VALID [2018-11-23 10:48:45,137 INFO L273 TraceCheckUtils]: 32: Hoare triple {8440#false} assume !false; {8440#false} is VALID [2018-11-23 10:48:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:45,139 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:48:45,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:45,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:45,141 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-23 10:48:45,141 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:45,142 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:45,221 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:45,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:45,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:45,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:45,222 INFO L87 Difference]: Start difference. First operand 585 states and 792 transitions. Second operand 3 states. [2018-11-23 10:48:48,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:48,514 INFO L93 Difference]: Finished difference Result 1096 states and 1479 transitions. [2018-11-23 10:48:48,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:48:48,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-23 10:48:48,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:48:48,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 878 transitions. [2018-11-23 10:48:48,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:48,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 878 transitions. [2018-11-23 10:48:48,537 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 878 transitions. [2018-11-23 10:48:50,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 878 edges. 878 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:50,048 INFO L225 Difference]: With dead ends: 1096 [2018-11-23 10:48:50,049 INFO L226 Difference]: Without dead ends: 796 [2018-11-23 10:48:50,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2018-11-23 10:48:51,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 767. [2018-11-23 10:48:51,086 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:48:51,086 INFO L82 GeneralOperation]: Start isEquivalent. First operand 796 states. Second operand 767 states. [2018-11-23 10:48:51,087 INFO L74 IsIncluded]: Start isIncluded. First operand 796 states. Second operand 767 states. [2018-11-23 10:48:51,087 INFO L87 Difference]: Start difference. First operand 796 states. Second operand 767 states. [2018-11-23 10:48:51,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:51,136 INFO L93 Difference]: Finished difference Result 796 states and 1075 transitions. [2018-11-23 10:48:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1075 transitions. [2018-11-23 10:48:51,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:51,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:51,140 INFO L74 IsIncluded]: Start isIncluded. First operand 767 states. Second operand 796 states. [2018-11-23 10:48:51,140 INFO L87 Difference]: Start difference. First operand 767 states. Second operand 796 states. [2018-11-23 10:48:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:51,193 INFO L93 Difference]: Finished difference Result 796 states and 1075 transitions. [2018-11-23 10:48:51,193 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1075 transitions. [2018-11-23 10:48:51,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:51,197 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:51,197 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:48:51,197 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:48:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2018-11-23 10:48:51,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1042 transitions. [2018-11-23 10:48:51,257 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1042 transitions. Word has length 33 [2018-11-23 10:48:51,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:48:51,257 INFO L480 AbstractCegarLoop]: Abstraction has 767 states and 1042 transitions. [2018-11-23 10:48:51,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:48:51,257 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1042 transitions. [2018-11-23 10:48:51,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 10:48:51,259 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:51,259 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:51,259 INFO L423 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:51,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:51,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1675496481, now seen corresponding path program 1 times [2018-11-23 10:48:51,260 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:51,260 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:51,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:51,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:51,948 INFO L256 TraceCheckUtils]: 0: Hoare triple {12658#true} call ULTIMATE.init(); {12658#true} is VALID [2018-11-23 10:48:51,949 INFO L273 TraceCheckUtils]: 1: Hoare triple {12658#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {12658#true} is VALID [2018-11-23 10:48:51,949 INFO L273 TraceCheckUtils]: 2: Hoare triple {12658#true} assume true; {12658#true} is VALID [2018-11-23 10:48:51,949 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {12658#true} {12658#true} #1155#return; {12658#true} is VALID [2018-11-23 10:48:51,949 INFO L256 TraceCheckUtils]: 4: Hoare triple {12658#true} call #t~ret166 := main(); {12658#true} is VALID [2018-11-23 10:48:51,950 INFO L273 TraceCheckUtils]: 5: Hoare triple {12658#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {12658#true} is VALID [2018-11-23 10:48:51,950 INFO L256 TraceCheckUtils]: 6: Hoare triple {12658#true} call _BLAST_init(); {12658#true} is VALID [2018-11-23 10:48:51,950 INFO L273 TraceCheckUtils]: 7: Hoare triple {12658#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {12658#true} is VALID [2018-11-23 10:48:51,950 INFO L273 TraceCheckUtils]: 8: Hoare triple {12658#true} assume true; {12658#true} is VALID [2018-11-23 10:48:51,951 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {12658#true} {12658#true} #1063#return; {12658#true} is VALID [2018-11-23 10:48:51,951 INFO L273 TraceCheckUtils]: 10: Hoare triple {12658#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {12658#true} is VALID [2018-11-23 10:48:51,951 INFO L273 TraceCheckUtils]: 11: Hoare triple {12658#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {12658#true} is VALID [2018-11-23 10:48:51,951 INFO L256 TraceCheckUtils]: 12: Hoare triple {12658#true} call stub_driver_init(); {12658#true} is VALID [2018-11-23 10:48:51,951 INFO L273 TraceCheckUtils]: 13: Hoare triple {12658#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {12658#true} is VALID [2018-11-23 10:48:51,952 INFO L273 TraceCheckUtils]: 14: Hoare triple {12658#true} assume true; {12658#true} is VALID [2018-11-23 10:48:51,952 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {12658#true} {12658#true} #1065#return; {12658#true} is VALID [2018-11-23 10:48:51,952 INFO L273 TraceCheckUtils]: 16: Hoare triple {12658#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {12658#true} is VALID [2018-11-23 10:48:51,953 INFO L273 TraceCheckUtils]: 17: Hoare triple {12658#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {12658#true} is VALID [2018-11-23 10:48:51,953 INFO L273 TraceCheckUtils]: 18: Hoare triple {12658#true} assume 1bv32 == ~tmp_ndt_2~0; {12658#true} is VALID [2018-11-23 10:48:51,953 INFO L256 TraceCheckUtils]: 19: Hoare triple {12658#true} call #t~ret94 := FloppyCreateClose(~devobj~0, ~pirp~0); {12658#true} is VALID [2018-11-23 10:48:51,954 INFO L273 TraceCheckUtils]: 20: Hoare triple {12658#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {12658#true} is VALID [2018-11-23 10:48:51,954 INFO L256 TraceCheckUtils]: 21: Hoare triple {12658#true} call IofCompleteRequest(~Irp, 0bv32); {12658#true} is VALID [2018-11-23 10:48:51,954 INFO L273 TraceCheckUtils]: 22: Hoare triple {12658#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {12658#true} is VALID [2018-11-23 10:48:51,968 INFO L273 TraceCheckUtils]: 23: Hoare triple {12658#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,969 INFO L273 TraceCheckUtils]: 24: Hoare triple {12732#(= ~DC~0 ~s~0)} assume true; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,970 INFO L268 TraceCheckUtils]: 25: Hoare quadruple {12732#(= ~DC~0 ~s~0)} {12658#true} #1083#return; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,970 INFO L273 TraceCheckUtils]: 26: Hoare triple {12732#(= ~DC~0 ~s~0)} #res := 0bv32; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,970 INFO L273 TraceCheckUtils]: 27: Hoare triple {12732#(= ~DC~0 ~s~0)} assume true; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,971 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {12732#(= ~DC~0 ~s~0)} {12658#true} #1069#return; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,972 INFO L273 TraceCheckUtils]: 29: Hoare triple {12732#(= ~DC~0 ~s~0)} ~status~1 := #t~ret94;havoc #t~ret94; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,973 INFO L273 TraceCheckUtils]: 30: Hoare triple {12732#(= ~DC~0 ~s~0)} assume !(1bv32 == ~pended~0); {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,974 INFO L273 TraceCheckUtils]: 31: Hoare triple {12732#(= ~DC~0 ~s~0)} assume !(1bv32 == ~pended~0); {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,974 INFO L273 TraceCheckUtils]: 32: Hoare triple {12732#(= ~DC~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,975 INFO L273 TraceCheckUtils]: 33: Hoare triple {12732#(= ~DC~0 ~s~0)} assume 4294967295bv32 != ~status~1; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,976 INFO L273 TraceCheckUtils]: 34: Hoare triple {12732#(= ~DC~0 ~s~0)} assume ~s~0 != ~SKIP2~0; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,977 INFO L273 TraceCheckUtils]: 35: Hoare triple {12732#(= ~DC~0 ~s~0)} assume ~s~0 != ~IPC~0; {12732#(= ~DC~0 ~s~0)} is VALID [2018-11-23 10:48:51,977 INFO L273 TraceCheckUtils]: 36: Hoare triple {12732#(= ~DC~0 ~s~0)} assume ~s~0 != ~DC~0; {12659#false} is VALID [2018-11-23 10:48:51,978 INFO L256 TraceCheckUtils]: 37: Hoare triple {12659#false} call errorFn(); {12659#false} is VALID [2018-11-23 10:48:51,978 INFO L273 TraceCheckUtils]: 38: Hoare triple {12659#false} assume !false; {12659#false} is VALID [2018-11-23 10:48:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:51,983 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:48:51,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:51,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:51,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-23 10:48:51,987 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:51,987 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:52,060 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:52,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:52,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:52,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:52,061 INFO L87 Difference]: Start difference. First operand 767 states and 1042 transitions. Second operand 3 states. [2018-11-23 10:48:54,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:54,898 INFO L93 Difference]: Finished difference Result 811 states and 1096 transitions. [2018-11-23 10:48:54,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:48:54,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-11-23 10:48:54,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:48:54,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:54,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2018-11-23 10:48:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:48:54,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2018-11-23 10:48:54,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 538 transitions. [2018-11-23 10:48:55,957 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 538 edges. 538 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:55,998 INFO L225 Difference]: With dead ends: 811 [2018-11-23 10:48:55,998 INFO L226 Difference]: Without dead ends: 806 [2018-11-23 10:48:55,999 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:56,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-11-23 10:48:57,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 802. [2018-11-23 10:48:57,034 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:48:57,034 INFO L82 GeneralOperation]: Start isEquivalent. First operand 806 states. Second operand 802 states. [2018-11-23 10:48:57,034 INFO L74 IsIncluded]: Start isIncluded. First operand 806 states. Second operand 802 states. [2018-11-23 10:48:57,034 INFO L87 Difference]: Start difference. First operand 806 states. Second operand 802 states. [2018-11-23 10:48:57,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:57,081 INFO L93 Difference]: Finished difference Result 806 states and 1089 transitions. [2018-11-23 10:48:57,081 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1089 transitions. [2018-11-23 10:48:57,085 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:57,085 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:57,085 INFO L74 IsIncluded]: Start isIncluded. First operand 802 states. Second operand 806 states. [2018-11-23 10:48:57,086 INFO L87 Difference]: Start difference. First operand 802 states. Second operand 806 states. [2018-11-23 10:48:57,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:48:57,131 INFO L93 Difference]: Finished difference Result 806 states and 1089 transitions. [2018-11-23 10:48:57,131 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1089 transitions. [2018-11-23 10:48:57,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:48:57,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:48:57,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:48:57,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:48:57,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2018-11-23 10:48:57,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1086 transitions. [2018-11-23 10:48:57,188 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1086 transitions. Word has length 39 [2018-11-23 10:48:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:48:57,189 INFO L480 AbstractCegarLoop]: Abstraction has 802 states and 1086 transitions. [2018-11-23 10:48:57,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:48:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1086 transitions. [2018-11-23 10:48:57,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-23 10:48:57,190 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:48:57,191 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:48:57,191 INFO L423 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:48:57,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:48:57,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1987377410, now seen corresponding path program 1 times [2018-11-23 10:48:57,192 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:48:57,192 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:48:57,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:48:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:48:57,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:48:57,607 INFO L256 TraceCheckUtils]: 0: Hoare triple {16571#true} call ULTIMATE.init(); {16571#true} is VALID [2018-11-23 10:48:57,608 INFO L273 TraceCheckUtils]: 1: Hoare triple {16571#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {16571#true} is VALID [2018-11-23 10:48:57,608 INFO L273 TraceCheckUtils]: 2: Hoare triple {16571#true} assume true; {16571#true} is VALID [2018-11-23 10:48:57,608 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {16571#true} {16571#true} #1155#return; {16571#true} is VALID [2018-11-23 10:48:57,608 INFO L256 TraceCheckUtils]: 4: Hoare triple {16571#true} call #t~ret166 := main(); {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L273 TraceCheckUtils]: 5: Hoare triple {16571#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L256 TraceCheckUtils]: 6: Hoare triple {16571#true} call _BLAST_init(); {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L273 TraceCheckUtils]: 7: Hoare triple {16571#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L273 TraceCheckUtils]: 8: Hoare triple {16571#true} assume true; {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {16571#true} {16571#true} #1063#return; {16571#true} is VALID [2018-11-23 10:48:57,609 INFO L273 TraceCheckUtils]: 10: Hoare triple {16571#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {16571#true} is VALID [2018-11-23 10:48:57,610 INFO L273 TraceCheckUtils]: 11: Hoare triple {16571#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {16571#true} is VALID [2018-11-23 10:48:57,610 INFO L256 TraceCheckUtils]: 12: Hoare triple {16571#true} call stub_driver_init(); {16571#true} is VALID [2018-11-23 10:48:57,610 INFO L273 TraceCheckUtils]: 13: Hoare triple {16571#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {16571#true} is VALID [2018-11-23 10:48:57,610 INFO L273 TraceCheckUtils]: 14: Hoare triple {16571#true} assume true; {16571#true} is VALID [2018-11-23 10:48:57,610 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {16571#true} {16571#true} #1065#return; {16571#true} is VALID [2018-11-23 10:48:57,611 INFO L273 TraceCheckUtils]: 16: Hoare triple {16571#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {16571#true} is VALID [2018-11-23 10:48:57,611 INFO L273 TraceCheckUtils]: 17: Hoare triple {16571#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {16571#true} is VALID [2018-11-23 10:48:57,611 INFO L273 TraceCheckUtils]: 18: Hoare triple {16571#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {16571#true} is VALID [2018-11-23 10:48:57,611 INFO L273 TraceCheckUtils]: 19: Hoare triple {16571#true} assume 2bv32 == ~tmp_ndt_3~0; {16571#true} is VALID [2018-11-23 10:48:57,612 INFO L256 TraceCheckUtils]: 20: Hoare triple {16571#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {16571#true} is VALID [2018-11-23 10:48:57,612 INFO L273 TraceCheckUtils]: 21: Hoare triple {16571#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {16571#true} is VALID [2018-11-23 10:48:57,612 INFO L273 TraceCheckUtils]: 22: Hoare triple {16571#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {16571#true} is VALID [2018-11-23 10:48:57,612 INFO L273 TraceCheckUtils]: 23: Hoare triple {16571#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {16571#true} is VALID [2018-11-23 10:48:57,613 INFO L273 TraceCheckUtils]: 24: Hoare triple {16571#true} assume 0bv32 == ~disketteExtension__IsStarted~2; {16571#true} is VALID [2018-11-23 10:48:57,627 INFO L273 TraceCheckUtils]: 25: Hoare triple {16571#true} assume ~s~0 == ~NP~0;~s~0 := ~SKIP1~0; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,636 INFO L273 TraceCheckUtils]: 26: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} #t~post152 := ~Irp__CurrentLocation~1;~Irp__CurrentLocation~1 := ~bvadd32(1bv32, #t~post152);havoc #t~post152;#t~post153 := ~Irp__Tail__Overlay__CurrentStackLocation~2;~Irp__Tail__Overlay__CurrentStackLocation~2 := ~bvadd32(1bv32, #t~post153);havoc #t~post153; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,649 INFO L256 TraceCheckUtils]: 27: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} call #t~ret154 := IofCallDriver(~disketteExtension__TargetObject~2, ~Irp); {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,651 INFO L273 TraceCheckUtils]: 28: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~returnVal2~0;havoc ~compRetStatus1~0;~lcontext~0 := #t~nondet103;havoc #t~nondet103;havoc ~__cil_tmp7~0; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,656 INFO L273 TraceCheckUtils]: 29: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} assume !(0bv32 != ~compRegistered~0); {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,656 INFO L273 TraceCheckUtils]: 30: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} havoc ~tmp_ndt_10~0;~tmp_ndt_10~0 := #t~nondet105;havoc #t~nondet105; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,657 INFO L273 TraceCheckUtils]: 31: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} assume 0bv32 == ~tmp_ndt_10~0; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,657 INFO L273 TraceCheckUtils]: 32: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} ~returnVal2~0 := 0bv32; {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,657 INFO L273 TraceCheckUtils]: 33: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~NP~0); {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,658 INFO L273 TraceCheckUtils]: 34: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~MPR1~0); {16651#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-23 10:48:57,658 INFO L273 TraceCheckUtils]: 35: Hoare triple {16651#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~SKIP1~0); {16572#false} is VALID [2018-11-23 10:48:57,658 INFO L256 TraceCheckUtils]: 36: Hoare triple {16572#false} call errorFn(); {16572#false} is VALID [2018-11-23 10:48:57,658 INFO L273 TraceCheckUtils]: 37: Hoare triple {16572#false} assume !false; {16572#false} is VALID [2018-11-23 10:48:57,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:48:57,660 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:48:57,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:48:57,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:48:57,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-23 10:48:57,664 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:48:57,664 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:48:57,739 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:48:57,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:48:57,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:48:57,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:48:57,740 INFO L87 Difference]: Start difference. First operand 802 states and 1086 transitions. Second operand 3 states. [2018-11-23 10:49:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:00,251 INFO L93 Difference]: Finished difference Result 817 states and 1106 transitions. [2018-11-23 10:49:00,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:49:00,252 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-23 10:49:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:00,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:49:00,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2018-11-23 10:49:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:49:00,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 518 transitions. [2018-11-23 10:49:00,263 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 518 transitions. [2018-11-23 10:49:00,852 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 518 edges. 518 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:00,887 INFO L225 Difference]: With dead ends: 817 [2018-11-23 10:49:00,887 INFO L226 Difference]: Without dead ends: 814 [2018-11-23 10:49:00,888 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:49:00,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2018-11-23 10:49:02,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 813. [2018-11-23 10:49:02,306 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:02,306 INFO L82 GeneralOperation]: Start isEquivalent. First operand 814 states. Second operand 813 states. [2018-11-23 10:49:02,306 INFO L74 IsIncluded]: Start isIncluded. First operand 814 states. Second operand 813 states. [2018-11-23 10:49:02,306 INFO L87 Difference]: Start difference. First operand 814 states. Second operand 813 states. [2018-11-23 10:49:02,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:02,351 INFO L93 Difference]: Finished difference Result 814 states and 1102 transitions. [2018-11-23 10:49:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1102 transitions. [2018-11-23 10:49:02,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:02,355 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:02,355 INFO L74 IsIncluded]: Start isIncluded. First operand 813 states. Second operand 814 states. [2018-11-23 10:49:02,355 INFO L87 Difference]: Start difference. First operand 813 states. Second operand 814 states. [2018-11-23 10:49:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:02,401 INFO L93 Difference]: Finished difference Result 814 states and 1102 transitions. [2018-11-23 10:49:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1102 transitions. [2018-11-23 10:49:02,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:02,404 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:02,404 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:02,404 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:02,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2018-11-23 10:49:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1100 transitions. [2018-11-23 10:49:02,460 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1100 transitions. Word has length 38 [2018-11-23 10:49:02,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:02,460 INFO L480 AbstractCegarLoop]: Abstraction has 813 states and 1100 transitions. [2018-11-23 10:49:02,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:49:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1100 transitions. [2018-11-23 10:49:02,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-23 10:49:02,462 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:02,462 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:02,463 INFO L423 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:02,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:02,463 INFO L82 PathProgramCache]: Analyzing trace with hash -815128834, now seen corresponding path program 1 times [2018-11-23 10:49:02,463 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:02,463 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:02,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:02,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:02,615 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:02,783 INFO L256 TraceCheckUtils]: 0: Hoare triple {20521#true} call ULTIMATE.init(); {20521#true} is VALID [2018-11-23 10:49:02,783 INFO L273 TraceCheckUtils]: 1: Hoare triple {20521#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {20521#true} is VALID [2018-11-23 10:49:02,783 INFO L273 TraceCheckUtils]: 2: Hoare triple {20521#true} assume true; {20521#true} is VALID [2018-11-23 10:49:02,784 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20521#true} {20521#true} #1155#return; {20521#true} is VALID [2018-11-23 10:49:02,784 INFO L256 TraceCheckUtils]: 4: Hoare triple {20521#true} call #t~ret166 := main(); {20521#true} is VALID [2018-11-23 10:49:02,784 INFO L273 TraceCheckUtils]: 5: Hoare triple {20521#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {20521#true} is VALID [2018-11-23 10:49:02,785 INFO L256 TraceCheckUtils]: 6: Hoare triple {20521#true} call _BLAST_init(); {20521#true} is VALID [2018-11-23 10:49:02,789 INFO L273 TraceCheckUtils]: 7: Hoare triple {20521#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,789 INFO L273 TraceCheckUtils]: 8: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,790 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20521#true} #1063#return; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,791 INFO L273 TraceCheckUtils]: 10: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,791 INFO L273 TraceCheckUtils]: 11: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,792 INFO L256 TraceCheckUtils]: 12: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call stub_driver_init(); {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,792 INFO L273 TraceCheckUtils]: 13: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,793 INFO L273 TraceCheckUtils]: 14: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,800 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1065#return; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,800 INFO L273 TraceCheckUtils]: 16: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,801 INFO L273 TraceCheckUtils]: 17: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~tmp_ndt_1~0; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,801 INFO L256 TraceCheckUtils]: 18: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,802 INFO L273 TraceCheckUtils]: 19: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,803 INFO L256 TraceCheckUtils]: 20: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call IofCompleteRequest(~Irp, 0bv32); {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,803 INFO L273 TraceCheckUtils]: 21: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,804 INFO L273 TraceCheckUtils]: 22: Hoare triple {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,804 INFO L273 TraceCheckUtils]: 23: Hoare triple {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,806 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1083#return; {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,806 INFO L273 TraceCheckUtils]: 25: Hoare triple {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #res := 0bv32; {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,808 INFO L273 TraceCheckUtils]: 26: Hoare triple {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:02,809 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {20593#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20547#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1067#return; {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,810 INFO L273 TraceCheckUtils]: 28: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} ~status~1 := #t~ret93;havoc #t~ret93; {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,810 INFO L273 TraceCheckUtils]: 29: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,811 INFO L273 TraceCheckUtils]: 30: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,811 INFO L273 TraceCheckUtils]: 31: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~UNLOADED~0; {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,811 INFO L273 TraceCheckUtils]: 32: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume 4294967295bv32 != ~status~1; {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:02,812 INFO L273 TraceCheckUtils]: 33: Hoare triple {20609#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(~s~0 != ~SKIP2~0); {20522#false} is VALID [2018-11-23 10:49:02,812 INFO L273 TraceCheckUtils]: 34: Hoare triple {20522#false} assume !(1bv32 == ~pended~0); {20522#false} is VALID [2018-11-23 10:49:02,812 INFO L273 TraceCheckUtils]: 35: Hoare triple {20522#false} assume ~s~0 == ~DC~0; {20522#false} is VALID [2018-11-23 10:49:02,813 INFO L273 TraceCheckUtils]: 36: Hoare triple {20522#false} assume 259bv32 == ~status~1; {20522#false} is VALID [2018-11-23 10:49:02,813 INFO L256 TraceCheckUtils]: 37: Hoare triple {20522#false} call errorFn(); {20522#false} is VALID [2018-11-23 10:49:02,813 INFO L273 TraceCheckUtils]: 38: Hoare triple {20522#false} assume !false; {20522#false} is VALID [2018-11-23 10:49:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:02,819 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:02,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:02,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:49:02,822 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-23 10:49:02,822 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:02,822 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:49:02,896 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:02,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:49:02,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:49:02,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:02,897 INFO L87 Difference]: Start difference. First operand 813 states and 1100 transitions. Second operand 5 states. [2018-11-23 10:49:08,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:08,943 INFO L93 Difference]: Finished difference Result 826 states and 1112 transitions. [2018-11-23 10:49:08,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:49:08,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-23 10:49:08,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:08,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:08,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2018-11-23 10:49:08,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:08,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2018-11-23 10:49:08,954 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 540 transitions. [2018-11-23 10:49:12,606 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 540 edges. 540 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:12,655 INFO L225 Difference]: With dead ends: 826 [2018-11-23 10:49:12,655 INFO L226 Difference]: Without dead ends: 817 [2018-11-23 10:49:12,656 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:12,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2018-11-23 10:49:14,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 813. [2018-11-23 10:49:14,434 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:14,434 INFO L82 GeneralOperation]: Start isEquivalent. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:14,434 INFO L74 IsIncluded]: Start isIncluded. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:14,435 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:14,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:14,473 INFO L93 Difference]: Finished difference Result 817 states and 1101 transitions. [2018-11-23 10:49:14,473 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1101 transitions. [2018-11-23 10:49:14,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:14,476 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:14,476 INFO L74 IsIncluded]: Start isIncluded. First operand 813 states. Second operand 817 states. [2018-11-23 10:49:14,476 INFO L87 Difference]: Start difference. First operand 813 states. Second operand 817 states. [2018-11-23 10:49:14,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:14,519 INFO L93 Difference]: Finished difference Result 817 states and 1101 transitions. [2018-11-23 10:49:14,520 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1101 transitions. [2018-11-23 10:49:14,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:14,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:14,522 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:14,522 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:14,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2018-11-23 10:49:14,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1098 transitions. [2018-11-23 10:49:14,579 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1098 transitions. Word has length 39 [2018-11-23 10:49:14,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:14,579 INFO L480 AbstractCegarLoop]: Abstraction has 813 states and 1098 transitions. [2018-11-23 10:49:14,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:49:14,579 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1098 transitions. [2018-11-23 10:49:14,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 10:49:14,581 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:14,581 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:14,581 INFO L423 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:14,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:14,581 INFO L82 PathProgramCache]: Analyzing trace with hash -388441454, now seen corresponding path program 1 times [2018-11-23 10:49:14,582 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:14,582 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:14,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:14,730 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:15,136 INFO L256 TraceCheckUtils]: 0: Hoare triple {24496#true} call ULTIMATE.init(); {24496#true} is VALID [2018-11-23 10:49:15,136 INFO L273 TraceCheckUtils]: 1: Hoare triple {24496#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {24496#true} is VALID [2018-11-23 10:49:15,137 INFO L273 TraceCheckUtils]: 2: Hoare triple {24496#true} assume true; {24496#true} is VALID [2018-11-23 10:49:15,137 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {24496#true} {24496#true} #1155#return; {24496#true} is VALID [2018-11-23 10:49:15,137 INFO L256 TraceCheckUtils]: 4: Hoare triple {24496#true} call #t~ret166 := main(); {24496#true} is VALID [2018-11-23 10:49:15,137 INFO L273 TraceCheckUtils]: 5: Hoare triple {24496#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {24496#true} is VALID [2018-11-23 10:49:15,137 INFO L256 TraceCheckUtils]: 6: Hoare triple {24496#true} call _BLAST_init(); {24496#true} is VALID [2018-11-23 10:49:15,138 INFO L273 TraceCheckUtils]: 7: Hoare triple {24496#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,139 INFO L273 TraceCheckUtils]: 8: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,139 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24496#true} #1063#return; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,140 INFO L273 TraceCheckUtils]: 10: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,140 INFO L273 TraceCheckUtils]: 11: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,140 INFO L256 TraceCheckUtils]: 12: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call stub_driver_init(); {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,141 INFO L273 TraceCheckUtils]: 13: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,142 INFO L273 TraceCheckUtils]: 14: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,143 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1065#return; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,143 INFO L273 TraceCheckUtils]: 16: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,144 INFO L273 TraceCheckUtils]: 17: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~tmp_ndt_1~0; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,145 INFO L256 TraceCheckUtils]: 18: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,146 INFO L273 TraceCheckUtils]: 19: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,147 INFO L256 TraceCheckUtils]: 20: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call IofCompleteRequest(~Irp, 0bv32); {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,148 INFO L273 TraceCheckUtils]: 21: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,148 INFO L273 TraceCheckUtils]: 22: Hoare triple {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,151 INFO L273 TraceCheckUtils]: 23: Hoare triple {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,152 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1083#return; {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,153 INFO L273 TraceCheckUtils]: 25: Hoare triple {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #res := 0bv32; {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,153 INFO L273 TraceCheckUtils]: 26: Hoare triple {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-23 10:49:15,155 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {24568#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24522#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1067#return; {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,157 INFO L273 TraceCheckUtils]: 28: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} ~status~1 := #t~ret93;havoc #t~ret93; {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,162 INFO L273 TraceCheckUtils]: 29: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,165 INFO L273 TraceCheckUtils]: 30: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,167 INFO L273 TraceCheckUtils]: 31: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~UNLOADED~0; {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,168 INFO L273 TraceCheckUtils]: 32: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume 4294967295bv32 != ~status~1; {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,169 INFO L273 TraceCheckUtils]: 33: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~SKIP2~0; {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-23 10:49:15,169 INFO L273 TraceCheckUtils]: 34: Hoare triple {24584#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(~s~0 != ~IPC~0); {24497#false} is VALID [2018-11-23 10:49:15,170 INFO L273 TraceCheckUtils]: 35: Hoare triple {24497#false} assume !(1bv32 == ~pended~0); {24497#false} is VALID [2018-11-23 10:49:15,170 INFO L273 TraceCheckUtils]: 36: Hoare triple {24497#false} assume ~s~0 == ~DC~0; {24497#false} is VALID [2018-11-23 10:49:15,170 INFO L273 TraceCheckUtils]: 37: Hoare triple {24497#false} assume 259bv32 == ~status~1; {24497#false} is VALID [2018-11-23 10:49:15,170 INFO L256 TraceCheckUtils]: 38: Hoare triple {24497#false} call errorFn(); {24497#false} is VALID [2018-11-23 10:49:15,170 INFO L273 TraceCheckUtils]: 39: Hoare triple {24497#false} assume !false; {24497#false} is VALID [2018-11-23 10:49:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:15,173 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:15,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:15,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:49:15,176 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-11-23 10:49:15,176 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:15,176 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:49:15,292 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:15,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:49:15,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:49:15,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:15,293 INFO L87 Difference]: Start difference. First operand 813 states and 1098 transitions. Second operand 5 states. [2018-11-23 10:49:19,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:19,668 INFO L93 Difference]: Finished difference Result 826 states and 1110 transitions. [2018-11-23 10:49:19,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:49:19,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-11-23 10:49:19,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:19,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2018-11-23 10:49:19,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:19,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 539 transitions. [2018-11-23 10:49:19,679 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 539 transitions. [2018-11-23 10:49:20,635 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:20,683 INFO L225 Difference]: With dead ends: 826 [2018-11-23 10:49:20,683 INFO L226 Difference]: Without dead ends: 817 [2018-11-23 10:49:20,684 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:20,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2018-11-23 10:49:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 813. [2018-11-23 10:49:22,744 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:22,744 INFO L82 GeneralOperation]: Start isEquivalent. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:22,744 INFO L74 IsIncluded]: Start isIncluded. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:22,745 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 813 states. [2018-11-23 10:49:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:22,775 INFO L93 Difference]: Finished difference Result 817 states and 1099 transitions. [2018-11-23 10:49:22,776 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1099 transitions. [2018-11-23 10:49:22,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:22,778 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:22,778 INFO L74 IsIncluded]: Start isIncluded. First operand 813 states. Second operand 817 states. [2018-11-23 10:49:22,778 INFO L87 Difference]: Start difference. First operand 813 states. Second operand 817 states. [2018-11-23 10:49:22,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:22,818 INFO L93 Difference]: Finished difference Result 817 states and 1099 transitions. [2018-11-23 10:49:22,818 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1099 transitions. [2018-11-23 10:49:22,819 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:22,820 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:22,820 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:22,820 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:22,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2018-11-23 10:49:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1096 transitions. [2018-11-23 10:49:22,862 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1096 transitions. Word has length 40 [2018-11-23 10:49:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:22,863 INFO L480 AbstractCegarLoop]: Abstraction has 813 states and 1096 transitions. [2018-11-23 10:49:22,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:49:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1096 transitions. [2018-11-23 10:49:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 10:49:22,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:22,864 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:22,864 INFO L423 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:22,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:22,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1977292724, now seen corresponding path program 1 times [2018-11-23 10:49:22,865 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:22,865 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:22,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:23,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:23,092 INFO L256 TraceCheckUtils]: 0: Hoare triple {28474#true} call ULTIMATE.init(); {28474#true} is VALID [2018-11-23 10:49:23,093 INFO L273 TraceCheckUtils]: 1: Hoare triple {28474#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {28474#true} is VALID [2018-11-23 10:49:23,093 INFO L273 TraceCheckUtils]: 2: Hoare triple {28474#true} assume true; {28474#true} is VALID [2018-11-23 10:49:23,093 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {28474#true} {28474#true} #1155#return; {28474#true} is VALID [2018-11-23 10:49:23,094 INFO L256 TraceCheckUtils]: 4: Hoare triple {28474#true} call #t~ret166 := main(); {28474#true} is VALID [2018-11-23 10:49:23,094 INFO L273 TraceCheckUtils]: 5: Hoare triple {28474#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {28474#true} is VALID [2018-11-23 10:49:23,094 INFO L256 TraceCheckUtils]: 6: Hoare triple {28474#true} call _BLAST_init(); {28474#true} is VALID [2018-11-23 10:49:23,095 INFO L273 TraceCheckUtils]: 7: Hoare triple {28474#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {28474#true} is VALID [2018-11-23 10:49:23,095 INFO L273 TraceCheckUtils]: 8: Hoare triple {28474#true} assume true; {28474#true} is VALID [2018-11-23 10:49:23,095 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {28474#true} {28474#true} #1063#return; {28474#true} is VALID [2018-11-23 10:49:23,095 INFO L273 TraceCheckUtils]: 10: Hoare triple {28474#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L273 TraceCheckUtils]: 11: Hoare triple {28474#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L256 TraceCheckUtils]: 12: Hoare triple {28474#true} call stub_driver_init(); {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L273 TraceCheckUtils]: 13: Hoare triple {28474#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L273 TraceCheckUtils]: 14: Hoare triple {28474#true} assume true; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {28474#true} {28474#true} #1065#return; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {28474#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {28474#true} is VALID [2018-11-23 10:49:23,096 INFO L273 TraceCheckUtils]: 17: Hoare triple {28474#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {28474#true} is VALID [2018-11-23 10:49:23,097 INFO L273 TraceCheckUtils]: 18: Hoare triple {28474#true} assume 1bv32 == ~tmp_ndt_2~0; {28474#true} is VALID [2018-11-23 10:49:23,097 INFO L256 TraceCheckUtils]: 19: Hoare triple {28474#true} call #t~ret94 := FloppyCreateClose(~devobj~0, ~pirp~0); {28474#true} is VALID [2018-11-23 10:49:23,097 INFO L273 TraceCheckUtils]: 20: Hoare triple {28474#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {28474#true} is VALID [2018-11-23 10:49:23,097 INFO L256 TraceCheckUtils]: 21: Hoare triple {28474#true} call IofCompleteRequest(~Irp, 0bv32); {28474#true} is VALID [2018-11-23 10:49:23,097 INFO L273 TraceCheckUtils]: 22: Hoare triple {28474#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {28474#true} is VALID [2018-11-23 10:49:23,098 INFO L273 TraceCheckUtils]: 23: Hoare triple {28474#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {28474#true} is VALID [2018-11-23 10:49:23,098 INFO L273 TraceCheckUtils]: 24: Hoare triple {28474#true} assume true; {28474#true} is VALID [2018-11-23 10:49:23,098 INFO L268 TraceCheckUtils]: 25: Hoare quadruple {28474#true} {28474#true} #1083#return; {28474#true} is VALID [2018-11-23 10:49:23,099 INFO L273 TraceCheckUtils]: 26: Hoare triple {28474#true} #res := 0bv32; {28557#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-23 10:49:23,099 INFO L273 TraceCheckUtils]: 27: Hoare triple {28557#(= (_ bv0 32) |FloppyCreateClose_#res|)} assume true; {28557#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-23 10:49:23,100 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {28557#(= (_ bv0 32) |FloppyCreateClose_#res|)} {28474#true} #1069#return; {28564#(= |main_#t~ret94| (_ bv0 32))} is VALID [2018-11-23 10:49:23,100 INFO L273 TraceCheckUtils]: 29: Hoare triple {28564#(= |main_#t~ret94| (_ bv0 32))} ~status~1 := #t~ret94;havoc #t~ret94; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,101 INFO L273 TraceCheckUtils]: 30: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,101 INFO L273 TraceCheckUtils]: 31: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,101 INFO L273 TraceCheckUtils]: 32: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,102 INFO L273 TraceCheckUtils]: 33: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume 4294967295bv32 != ~status~1; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,102 INFO L273 TraceCheckUtils]: 34: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,103 INFO L273 TraceCheckUtils]: 35: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~IPC~0; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,103 INFO L273 TraceCheckUtils]: 36: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume !(~s~0 != ~DC~0); {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,104 INFO L273 TraceCheckUtils]: 37: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,105 INFO L273 TraceCheckUtils]: 38: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume ~s~0 == ~DC~0; {28568#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:23,105 INFO L273 TraceCheckUtils]: 39: Hoare triple {28568#(= main_~status~1 (_ bv0 32))} assume 259bv32 == ~status~1; {28475#false} is VALID [2018-11-23 10:49:23,105 INFO L256 TraceCheckUtils]: 40: Hoare triple {28475#false} call errorFn(); {28475#false} is VALID [2018-11-23 10:49:23,106 INFO L273 TraceCheckUtils]: 41: Hoare triple {28475#false} assume !false; {28475#false} is VALID [2018-11-23 10:49:23,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:23,108 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:23,109 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:23,109 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:49:23,110 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-23 10:49:23,110 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:23,110 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:49:23,177 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:23,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:49:23,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:49:23,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:23,178 INFO L87 Difference]: Start difference. First operand 813 states and 1096 transitions. Second operand 5 states. [2018-11-23 10:49:29,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:29,038 INFO L93 Difference]: Finished difference Result 826 states and 1108 transitions. [2018-11-23 10:49:29,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 10:49:29,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-23 10:49:29,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:29,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2018-11-23 10:49:29,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 510 transitions. [2018-11-23 10:49:29,045 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 510 transitions. [2018-11-23 10:49:30,013 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 510 edges. 510 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:30,064 INFO L225 Difference]: With dead ends: 826 [2018-11-23 10:49:30,064 INFO L226 Difference]: Without dead ends: 811 [2018-11-23 10:49:30,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:49:30,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2018-11-23 10:49:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2018-11-23 10:49:31,569 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:31,569 INFO L82 GeneralOperation]: Start isEquivalent. First operand 811 states. Second operand 811 states. [2018-11-23 10:49:31,569 INFO L74 IsIncluded]: Start isIncluded. First operand 811 states. Second operand 811 states. [2018-11-23 10:49:31,569 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 811 states. [2018-11-23 10:49:31,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:31,612 INFO L93 Difference]: Finished difference Result 811 states and 1092 transitions. [2018-11-23 10:49:31,612 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1092 transitions. [2018-11-23 10:49:31,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:31,614 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:31,614 INFO L74 IsIncluded]: Start isIncluded. First operand 811 states. Second operand 811 states. [2018-11-23 10:49:31,615 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 811 states. [2018-11-23 10:49:31,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:31,658 INFO L93 Difference]: Finished difference Result 811 states and 1092 transitions. [2018-11-23 10:49:31,658 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1092 transitions. [2018-11-23 10:49:31,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:31,660 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:31,661 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:31,661 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2018-11-23 10:49:31,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1092 transitions. [2018-11-23 10:49:31,703 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1092 transitions. Word has length 42 [2018-11-23 10:49:31,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:31,703 INFO L480 AbstractCegarLoop]: Abstraction has 811 states and 1092 transitions. [2018-11-23 10:49:31,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:49:31,703 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1092 transitions. [2018-11-23 10:49:31,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-23 10:49:31,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:31,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:31,705 INFO L423 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:31,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:31,705 INFO L82 PathProgramCache]: Analyzing trace with hash 898132775, now seen corresponding path program 1 times [2018-11-23 10:49:31,705 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:31,706 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:31,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:31,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:31,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:31,965 INFO L256 TraceCheckUtils]: 0: Hoare triple {32444#true} call ULTIMATE.init(); {32444#true} is VALID [2018-11-23 10:49:31,965 INFO L273 TraceCheckUtils]: 1: Hoare triple {32444#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {32444#true} is VALID [2018-11-23 10:49:31,965 INFO L273 TraceCheckUtils]: 2: Hoare triple {32444#true} assume true; {32444#true} is VALID [2018-11-23 10:49:31,966 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {32444#true} {32444#true} #1155#return; {32444#true} is VALID [2018-11-23 10:49:31,966 INFO L256 TraceCheckUtils]: 4: Hoare triple {32444#true} call #t~ret166 := main(); {32444#true} is VALID [2018-11-23 10:49:31,966 INFO L273 TraceCheckUtils]: 5: Hoare triple {32444#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {32444#true} is VALID [2018-11-23 10:49:31,966 INFO L256 TraceCheckUtils]: 6: Hoare triple {32444#true} call _BLAST_init(); {32444#true} is VALID [2018-11-23 10:49:31,966 INFO L273 TraceCheckUtils]: 7: Hoare triple {32444#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {32444#true} is VALID [2018-11-23 10:49:31,967 INFO L273 TraceCheckUtils]: 8: Hoare triple {32444#true} assume true; {32444#true} is VALID [2018-11-23 10:49:31,967 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {32444#true} {32444#true} #1063#return; {32444#true} is VALID [2018-11-23 10:49:31,967 INFO L273 TraceCheckUtils]: 10: Hoare triple {32444#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {32444#true} is VALID [2018-11-23 10:49:31,967 INFO L273 TraceCheckUtils]: 11: Hoare triple {32444#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {32444#true} is VALID [2018-11-23 10:49:31,967 INFO L256 TraceCheckUtils]: 12: Hoare triple {32444#true} call stub_driver_init(); {32444#true} is VALID [2018-11-23 10:49:31,968 INFO L273 TraceCheckUtils]: 13: Hoare triple {32444#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {32444#true} is VALID [2018-11-23 10:49:31,968 INFO L273 TraceCheckUtils]: 14: Hoare triple {32444#true} assume true; {32444#true} is VALID [2018-11-23 10:49:31,968 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {32444#true} {32444#true} #1065#return; {32444#true} is VALID [2018-11-23 10:49:31,968 INFO L273 TraceCheckUtils]: 16: Hoare triple {32444#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {32444#true} is VALID [2018-11-23 10:49:31,968 INFO L273 TraceCheckUtils]: 17: Hoare triple {32444#true} assume 0bv32 == ~tmp_ndt_1~0; {32444#true} is VALID [2018-11-23 10:49:31,969 INFO L256 TraceCheckUtils]: 18: Hoare triple {32444#true} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {32444#true} is VALID [2018-11-23 10:49:31,969 INFO L273 TraceCheckUtils]: 19: Hoare triple {32444#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~3;havoc ~Irp__IoStatus__Information~2;~myStatus~0 := 0bv32;~Irp__IoStatus__Status~3 := 0bv32;~Irp__IoStatus__Information~2 := 1bv32; {32444#true} is VALID [2018-11-23 10:49:31,969 INFO L256 TraceCheckUtils]: 20: Hoare triple {32444#true} call IofCompleteRequest(~Irp, 0bv32); {32444#true} is VALID [2018-11-23 10:49:31,969 INFO L273 TraceCheckUtils]: 21: Hoare triple {32444#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {32444#true} is VALID [2018-11-23 10:49:31,969 INFO L273 TraceCheckUtils]: 22: Hoare triple {32444#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {32444#true} is VALID [2018-11-23 10:49:31,970 INFO L273 TraceCheckUtils]: 23: Hoare triple {32444#true} assume true; {32444#true} is VALID [2018-11-23 10:49:31,970 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {32444#true} {32444#true} #1083#return; {32444#true} is VALID [2018-11-23 10:49:31,980 INFO L273 TraceCheckUtils]: 25: Hoare triple {32444#true} #res := 0bv32; {32524#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-23 10:49:31,993 INFO L273 TraceCheckUtils]: 26: Hoare triple {32524#(= (_ bv0 32) |FloppyCreateClose_#res|)} assume true; {32524#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-23 10:49:32,006 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {32524#(= (_ bv0 32) |FloppyCreateClose_#res|)} {32444#true} #1067#return; {32531#(= |main_#t~ret93| (_ bv0 32))} is VALID [2018-11-23 10:49:32,006 INFO L273 TraceCheckUtils]: 28: Hoare triple {32531#(= |main_#t~ret93| (_ bv0 32))} ~status~1 := #t~ret93;havoc #t~ret93; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,010 INFO L273 TraceCheckUtils]: 29: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,016 INFO L273 TraceCheckUtils]: 30: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,016 INFO L273 TraceCheckUtils]: 31: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,019 INFO L273 TraceCheckUtils]: 32: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume 4294967295bv32 != ~status~1; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,019 INFO L273 TraceCheckUtils]: 33: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,020 INFO L273 TraceCheckUtils]: 34: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~IPC~0; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,020 INFO L273 TraceCheckUtils]: 35: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume !(~s~0 != ~DC~0); {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,020 INFO L273 TraceCheckUtils]: 36: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,021 INFO L273 TraceCheckUtils]: 37: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume ~s~0 == ~DC~0; {32535#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-23 10:49:32,021 INFO L273 TraceCheckUtils]: 38: Hoare triple {32535#(= main_~status~1 (_ bv0 32))} assume 259bv32 == ~status~1; {32445#false} is VALID [2018-11-23 10:49:32,021 INFO L256 TraceCheckUtils]: 39: Hoare triple {32445#false} call errorFn(); {32445#false} is VALID [2018-11-23 10:49:32,021 INFO L273 TraceCheckUtils]: 40: Hoare triple {32445#false} assume !false; {32445#false} is VALID [2018-11-23 10:49:32,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:32,022 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:32,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:32,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:49:32,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-23 10:49:32,025 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:32,025 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:49:32,076 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:32,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:49:32,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:49:32,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:32,077 INFO L87 Difference]: Start difference. First operand 811 states and 1092 transitions. Second operand 5 states. [2018-11-23 10:49:36,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:36,759 INFO L93 Difference]: Finished difference Result 824 states and 1104 transitions. [2018-11-23 10:49:36,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 10:49:36,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-23 10:49:36,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 506 transitions. [2018-11-23 10:49:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:49:36,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 506 transitions. [2018-11-23 10:49:36,771 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 506 transitions. [2018-11-23 10:49:37,364 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 506 edges. 506 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:37,414 INFO L225 Difference]: With dead ends: 824 [2018-11-23 10:49:37,414 INFO L226 Difference]: Without dead ends: 804 [2018-11-23 10:49:37,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:49:37,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2018-11-23 10:49:41,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2018-11-23 10:49:41,046 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:41,046 INFO L82 GeneralOperation]: Start isEquivalent. First operand 804 states. Second operand 804 states. [2018-11-23 10:49:41,047 INFO L74 IsIncluded]: Start isIncluded. First operand 804 states. Second operand 804 states. [2018-11-23 10:49:41,047 INFO L87 Difference]: Start difference. First operand 804 states. Second operand 804 states. [2018-11-23 10:49:41,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:41,081 INFO L93 Difference]: Finished difference Result 804 states and 1083 transitions. [2018-11-23 10:49:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1083 transitions. [2018-11-23 10:49:41,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:41,084 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:41,084 INFO L74 IsIncluded]: Start isIncluded. First operand 804 states. Second operand 804 states. [2018-11-23 10:49:41,084 INFO L87 Difference]: Start difference. First operand 804 states. Second operand 804 states. [2018-11-23 10:49:41,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:41,121 INFO L93 Difference]: Finished difference Result 804 states and 1083 transitions. [2018-11-23 10:49:41,121 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1083 transitions. [2018-11-23 10:49:41,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:41,123 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:41,123 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:41,123 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:41,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2018-11-23 10:49:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1083 transitions. [2018-11-23 10:49:41,165 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1083 transitions. Word has length 41 [2018-11-23 10:49:41,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:41,166 INFO L480 AbstractCegarLoop]: Abstraction has 804 states and 1083 transitions. [2018-11-23 10:49:41,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:49:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1083 transitions. [2018-11-23 10:49:41,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-23 10:49:41,167 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:41,167 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:41,167 INFO L423 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:41,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:41,168 INFO L82 PathProgramCache]: Analyzing trace with hash -514424031, now seen corresponding path program 1 times [2018-11-23 10:49:41,168 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:41,168 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:41,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:41,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:41,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:41,455 INFO L256 TraceCheckUtils]: 0: Hoare triple {36384#true} call ULTIMATE.init(); {36384#true} is VALID [2018-11-23 10:49:41,455 INFO L273 TraceCheckUtils]: 1: Hoare triple {36384#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {36384#true} is VALID [2018-11-23 10:49:41,456 INFO L273 TraceCheckUtils]: 2: Hoare triple {36384#true} assume true; {36384#true} is VALID [2018-11-23 10:49:41,456 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {36384#true} {36384#true} #1155#return; {36384#true} is VALID [2018-11-23 10:49:41,456 INFO L256 TraceCheckUtils]: 4: Hoare triple {36384#true} call #t~ret166 := main(); {36384#true} is VALID [2018-11-23 10:49:41,456 INFO L273 TraceCheckUtils]: 5: Hoare triple {36384#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {36384#true} is VALID [2018-11-23 10:49:41,457 INFO L256 TraceCheckUtils]: 6: Hoare triple {36384#true} call _BLAST_init(); {36384#true} is VALID [2018-11-23 10:49:41,457 INFO L273 TraceCheckUtils]: 7: Hoare triple {36384#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {36384#true} is VALID [2018-11-23 10:49:41,457 INFO L273 TraceCheckUtils]: 8: Hoare triple {36384#true} assume true; {36384#true} is VALID [2018-11-23 10:49:41,457 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {36384#true} {36384#true} #1063#return; {36384#true} is VALID [2018-11-23 10:49:41,457 INFO L273 TraceCheckUtils]: 10: Hoare triple {36384#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {36384#true} is VALID [2018-11-23 10:49:41,458 INFO L273 TraceCheckUtils]: 11: Hoare triple {36384#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {36384#true} is VALID [2018-11-23 10:49:41,458 INFO L256 TraceCheckUtils]: 12: Hoare triple {36384#true} call stub_driver_init(); {36384#true} is VALID [2018-11-23 10:49:41,458 INFO L273 TraceCheckUtils]: 13: Hoare triple {36384#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {36384#true} is VALID [2018-11-23 10:49:41,458 INFO L273 TraceCheckUtils]: 14: Hoare triple {36384#true} assume true; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {36384#true} {36384#true} #1065#return; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L273 TraceCheckUtils]: 16: Hoare triple {36384#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L273 TraceCheckUtils]: 17: Hoare triple {36384#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L273 TraceCheckUtils]: 18: Hoare triple {36384#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L273 TraceCheckUtils]: 19: Hoare triple {36384#true} assume 2bv32 == ~tmp_ndt_3~0; {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L256 TraceCheckUtils]: 20: Hoare triple {36384#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {36384#true} is VALID [2018-11-23 10:49:41,459 INFO L273 TraceCheckUtils]: 21: Hoare triple {36384#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {36384#true} is VALID [2018-11-23 10:49:41,460 INFO L273 TraceCheckUtils]: 22: Hoare triple {36384#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {36384#true} is VALID [2018-11-23 10:49:41,460 INFO L273 TraceCheckUtils]: 23: Hoare triple {36384#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {36384#true} is VALID [2018-11-23 10:49:41,460 INFO L273 TraceCheckUtils]: 24: Hoare triple {36384#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {36384#true} is VALID [2018-11-23 10:49:41,460 INFO L273 TraceCheckUtils]: 25: Hoare triple {36384#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {36384#true} is VALID [2018-11-23 10:49:41,461 INFO L273 TraceCheckUtils]: 26: Hoare triple {36384#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~ntStatus~3 := 3221225485bv32; {36467#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:49:41,462 INFO L273 TraceCheckUtils]: 27: Hoare triple {36467#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {36471#(= (_ bv3221225485 32) FloppyDeviceControl_~__cil_tmp91~0)} is VALID [2018-11-23 10:49:41,462 INFO L273 TraceCheckUtils]: 28: Hoare triple {36471#(= (_ bv3221225485 32) FloppyDeviceControl_~__cil_tmp91~0)} assume !(259bv32 != ~__cil_tmp91~0); {36385#false} is VALID [2018-11-23 10:49:41,462 INFO L273 TraceCheckUtils]: 29: Hoare triple {36385#false} #res := ~ntStatus~3; {36385#false} is VALID [2018-11-23 10:49:41,462 INFO L273 TraceCheckUtils]: 30: Hoare triple {36385#false} assume true; {36385#false} is VALID [2018-11-23 10:49:41,462 INFO L268 TraceCheckUtils]: 31: Hoare quadruple {36385#false} {36384#true} #1071#return; {36385#false} is VALID [2018-11-23 10:49:41,463 INFO L273 TraceCheckUtils]: 32: Hoare triple {36385#false} ~status~1 := #t~ret95;havoc #t~ret95; {36385#false} is VALID [2018-11-23 10:49:41,463 INFO L273 TraceCheckUtils]: 33: Hoare triple {36385#false} assume !(1bv32 == ~pended~0); {36385#false} is VALID [2018-11-23 10:49:41,463 INFO L273 TraceCheckUtils]: 34: Hoare triple {36385#false} assume !(1bv32 == ~pended~0); {36385#false} is VALID [2018-11-23 10:49:41,463 INFO L273 TraceCheckUtils]: 35: Hoare triple {36385#false} assume ~s~0 != ~UNLOADED~0; {36385#false} is VALID [2018-11-23 10:49:41,463 INFO L273 TraceCheckUtils]: 36: Hoare triple {36385#false} assume 4294967295bv32 != ~status~1; {36385#false} is VALID [2018-11-23 10:49:41,464 INFO L273 TraceCheckUtils]: 37: Hoare triple {36385#false} assume ~s~0 != ~SKIP2~0; {36385#false} is VALID [2018-11-23 10:49:41,464 INFO L273 TraceCheckUtils]: 38: Hoare triple {36385#false} assume ~s~0 != ~IPC~0; {36385#false} is VALID [2018-11-23 10:49:41,464 INFO L273 TraceCheckUtils]: 39: Hoare triple {36385#false} assume ~s~0 != ~DC~0; {36385#false} is VALID [2018-11-23 10:49:41,464 INFO L256 TraceCheckUtils]: 40: Hoare triple {36385#false} call errorFn(); {36385#false} is VALID [2018-11-23 10:49:41,464 INFO L273 TraceCheckUtils]: 41: Hoare triple {36385#false} assume !false; {36385#false} is VALID [2018-11-23 10:49:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:41,466 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:41,471 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:41,471 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 10:49:41,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-23 10:49:41,472 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:41,472 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 10:49:41,520 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:41,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 10:49:41,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 10:49:41,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 10:49:41,521 INFO L87 Difference]: Start difference. First operand 804 states and 1083 transitions. Second operand 4 states. [2018-11-23 10:49:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:44,374 INFO L93 Difference]: Finished difference Result 832 states and 1116 transitions. [2018-11-23 10:49:44,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:49:44,374 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-23 10:49:44,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:49:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:49:44,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:49:44,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:49:44,381 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 516 transitions. [2018-11-23 10:49:45,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 516 edges. 516 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:45,420 INFO L225 Difference]: With dead ends: 832 [2018-11-23 10:49:45,420 INFO L226 Difference]: Without dead ends: 810 [2018-11-23 10:49:45,421 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:49:45,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-11-23 10:49:47,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 806. [2018-11-23 10:49:47,506 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:47,506 INFO L82 GeneralOperation]: Start isEquivalent. First operand 810 states. Second operand 806 states. [2018-11-23 10:49:47,506 INFO L74 IsIncluded]: Start isIncluded. First operand 810 states. Second operand 806 states. [2018-11-23 10:49:47,506 INFO L87 Difference]: Start difference. First operand 810 states. Second operand 806 states. [2018-11-23 10:49:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:47,539 INFO L93 Difference]: Finished difference Result 810 states and 1090 transitions. [2018-11-23 10:49:47,539 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1090 transitions. [2018-11-23 10:49:47,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:47,541 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:47,541 INFO L74 IsIncluded]: Start isIncluded. First operand 806 states. Second operand 810 states. [2018-11-23 10:49:47,541 INFO L87 Difference]: Start difference. First operand 806 states. Second operand 810 states. [2018-11-23 10:49:47,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:47,574 INFO L93 Difference]: Finished difference Result 810 states and 1090 transitions. [2018-11-23 10:49:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1090 transitions. [2018-11-23 10:49:47,575 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:47,575 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:47,576 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:47,576 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:47,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2018-11-23 10:49:47,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1085 transitions. [2018-11-23 10:49:47,609 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1085 transitions. Word has length 42 [2018-11-23 10:49:47,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:47,609 INFO L480 AbstractCegarLoop]: Abstraction has 806 states and 1085 transitions. [2018-11-23 10:49:47,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 10:49:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1085 transitions. [2018-11-23 10:49:47,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-23 10:49:47,610 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:47,610 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:47,611 INFO L423 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:47,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:47,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1193401920, now seen corresponding path program 1 times [2018-11-23 10:49:47,611 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:47,611 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:47,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:47,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:47,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:47,827 INFO L256 TraceCheckUtils]: 0: Hoare triple {40351#true} call ULTIMATE.init(); {40351#true} is VALID [2018-11-23 10:49:47,828 INFO L273 TraceCheckUtils]: 1: Hoare triple {40351#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {40351#true} is VALID [2018-11-23 10:49:47,828 INFO L273 TraceCheckUtils]: 2: Hoare triple {40351#true} assume true; {40351#true} is VALID [2018-11-23 10:49:47,829 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {40351#true} {40351#true} #1155#return; {40351#true} is VALID [2018-11-23 10:49:47,829 INFO L256 TraceCheckUtils]: 4: Hoare triple {40351#true} call #t~ret166 := main(); {40351#true} is VALID [2018-11-23 10:49:47,829 INFO L273 TraceCheckUtils]: 5: Hoare triple {40351#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {40351#true} is VALID [2018-11-23 10:49:47,829 INFO L256 TraceCheckUtils]: 6: Hoare triple {40351#true} call _BLAST_init(); {40351#true} is VALID [2018-11-23 10:49:47,829 INFO L273 TraceCheckUtils]: 7: Hoare triple {40351#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {40351#true} is VALID [2018-11-23 10:49:47,830 INFO L273 TraceCheckUtils]: 8: Hoare triple {40351#true} assume true; {40351#true} is VALID [2018-11-23 10:49:47,830 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {40351#true} {40351#true} #1063#return; {40351#true} is VALID [2018-11-23 10:49:47,830 INFO L273 TraceCheckUtils]: 10: Hoare triple {40351#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {40351#true} is VALID [2018-11-23 10:49:47,830 INFO L273 TraceCheckUtils]: 11: Hoare triple {40351#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {40351#true} is VALID [2018-11-23 10:49:47,831 INFO L256 TraceCheckUtils]: 12: Hoare triple {40351#true} call stub_driver_init(); {40351#true} is VALID [2018-11-23 10:49:47,831 INFO L273 TraceCheckUtils]: 13: Hoare triple {40351#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {40351#true} is VALID [2018-11-23 10:49:47,831 INFO L273 TraceCheckUtils]: 14: Hoare triple {40351#true} assume true; {40351#true} is VALID [2018-11-23 10:49:47,832 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {40351#true} {40351#true} #1065#return; {40351#true} is VALID [2018-11-23 10:49:47,832 INFO L273 TraceCheckUtils]: 16: Hoare triple {40351#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {40351#true} is VALID [2018-11-23 10:49:47,832 INFO L273 TraceCheckUtils]: 17: Hoare triple {40351#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {40351#true} is VALID [2018-11-23 10:49:47,832 INFO L273 TraceCheckUtils]: 18: Hoare triple {40351#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {40351#true} is VALID [2018-11-23 10:49:47,832 INFO L273 TraceCheckUtils]: 19: Hoare triple {40351#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L273 TraceCheckUtils]: 20: Hoare triple {40351#true} assume 3bv32 == ~tmp_ndt_4~0; {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L256 TraceCheckUtils]: 21: Hoare triple {40351#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L273 TraceCheckUtils]: 22: Hoare triple {40351#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~0 := #t~nondet12;havoc #t~nondet12;~Irp__Tail__Overlay__CurrentStackLocation~0 := #t~nondet13;havoc #t~nondet13;havoc ~Irp__IoStatus__Information~1;havoc ~Irp__IoStatus__Status~1;~Irp__CurrentLocation~0 := #t~nondet14;havoc #t~nondet14;~disketteExtension__IsRemoved~0 := #t~nondet15;havoc #t~nondet15;~disketteExtension__IsStarted~0 := #t~nondet16;havoc #t~nondet16;~disketteExtension__TargetObject~0 := #t~nondet17;havoc #t~nondet17;havoc ~disketteExtension__HoldNewRequests~0;~disketteExtension__FloppyThread~0 := #t~nondet18;havoc #t~nondet18;~disketteExtension__InterfaceString__Buffer~0 := #t~nondet19;havoc #t~nondet19;~disketteExtension__InterfaceString~0 := #t~nondet20;havoc #t~nondet20;~disketteExtension__ArcName__Length~0 := #t~nondet21;havoc #t~nondet21;~disketteExtension__ArcName~0 := #t~nondet22;havoc #t~nondet22;~irpSp__MinorFunction~0 := #t~nondet23;havoc #t~nondet23;~IoGetConfigurationInformation__FloppyCount~0 := #t~nondet24;havoc #t~nondet24;havoc ~irpSp~0;havoc ~disketteExtension~0;havoc ~ntStatus~0;~doneEvent~0 := #t~nondet25;havoc #t~nondet25;havoc ~irpSp___0~0;havoc ~nextIrpSp~0;havoc ~nextIrpSp__Control~0;havoc ~irpSp___1~0;havoc ~irpSp__Context~0;havoc ~irpSp__Control~0;havoc ~__cil_tmp29~0;havoc ~__cil_tmp30~0;~ntStatus~0 := 0bv32;#t~post26 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post26);havoc #t~post26; {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L273 TraceCheckUtils]: 23: Hoare triple {40351#true} assume 1bv32 == ~PagingReferenceCount~0; {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L273 TraceCheckUtils]: 24: Hoare triple {40351#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {40351#true} is VALID [2018-11-23 10:49:47,833 INFO L273 TraceCheckUtils]: 25: Hoare triple {40351#true} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {40351#true} is VALID [2018-11-23 10:49:47,834 INFO L273 TraceCheckUtils]: 26: Hoare triple {40351#true} assume !(0bv32 == ~irpSp__MinorFunction~0); {40351#true} is VALID [2018-11-23 10:49:47,834 INFO L273 TraceCheckUtils]: 27: Hoare triple {40351#true} assume 5bv32 == ~irpSp__MinorFunction~0; {40351#true} is VALID [2018-11-23 10:49:47,834 INFO L273 TraceCheckUtils]: 28: Hoare triple {40351#true} assume 5bv32 == ~irpSp__MinorFunction~0; {40351#true} is VALID [2018-11-23 10:49:47,834 INFO L273 TraceCheckUtils]: 29: Hoare triple {40351#true} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {40351#true} is VALID [2018-11-23 10:49:47,834 INFO L256 TraceCheckUtils]: 30: Hoare triple {40351#true} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {40351#true} is VALID [2018-11-23 10:49:47,835 INFO L273 TraceCheckUtils]: 31: Hoare triple {40351#true} ~Irp := #in~Irp;~DisketteExtension := #in~DisketteExtension;havoc ~status~0;~threadHandle~0 := #t~nondet0;havoc #t~nondet0;~DisketteExtension__PoweringDown~0 := #t~nondet1;havoc #t~nondet1;~DisketteExtension__ThreadReferenceCount~0 := #t~nondet2;havoc #t~nondet2;~DisketteExtension__FloppyThread~0 := #t~nondet3;havoc #t~nondet3;havoc ~Irp__IoStatus__Status~0;havoc ~Irp__IoStatus__Information~0;havoc ~Irp__Tail__Overlay__CurrentStackLocation__Control~0;~ObjAttributes~0 := #t~nondet4;havoc #t~nondet4;havoc ~__cil_tmp12~0;havoc ~__cil_tmp13~0; {40351#true} is VALID [2018-11-23 10:49:47,835 INFO L273 TraceCheckUtils]: 32: Hoare triple {40351#true} assume 1bv32 == ~DisketteExtension__PoweringDown~0;~myStatus~0 := 3221226195bv32;~Irp__IoStatus__Status~0 := 3221226195bv32;~Irp__IoStatus__Information~0 := 0bv32;#res := 3221226195bv32; {40351#true} is VALID [2018-11-23 10:49:47,835 INFO L273 TraceCheckUtils]: 33: Hoare triple {40351#true} assume true; {40351#true} is VALID [2018-11-23 10:49:47,835 INFO L268 TraceCheckUtils]: 34: Hoare quadruple {40351#true} {40351#true} #1023#return; {40351#true} is VALID [2018-11-23 10:49:47,835 INFO L273 TraceCheckUtils]: 35: Hoare triple {40351#true} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {40351#true} is VALID [2018-11-23 10:49:47,836 INFO L273 TraceCheckUtils]: 36: Hoare triple {40351#true} assume 259bv32 == ~__cil_tmp29~0; {40351#true} is VALID [2018-11-23 10:49:47,836 INFO L256 TraceCheckUtils]: 37: Hoare triple {40351#true} call #t~ret32 := KeWaitForSingleObject(~disketteExtension__FloppyThread~0, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {40351#true} is VALID [2018-11-23 10:49:47,836 INFO L273 TraceCheckUtils]: 38: Hoare triple {40351#true} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {40351#true} is VALID [2018-11-23 10:49:47,841 INFO L273 TraceCheckUtils]: 39: Hoare triple {40351#true} assume !(~s~0 == ~MPR3~0); {40473#(not (= ~MPR3~0 ~s~0))} is VALID [2018-11-23 10:49:47,843 INFO L273 TraceCheckUtils]: 40: Hoare triple {40473#(not (= ~MPR3~0 ~s~0))} assume !(1bv32 == ~customIrp~0); {40473#(not (= ~MPR3~0 ~s~0))} is VALID [2018-11-23 10:49:47,843 INFO L273 TraceCheckUtils]: 41: Hoare triple {40473#(not (= ~MPR3~0 ~s~0))} assume ~s~0 == ~MPR3~0; {40352#false} is VALID [2018-11-23 10:49:47,843 INFO L256 TraceCheckUtils]: 42: Hoare triple {40352#false} call errorFn(); {40352#false} is VALID [2018-11-23 10:49:47,843 INFO L273 TraceCheckUtils]: 43: Hoare triple {40352#false} assume !false; {40352#false} is VALID [2018-11-23 10:49:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:47,844 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:47,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:47,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:49:47,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-11-23 10:49:47,848 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:47,848 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:49:47,901 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:47,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:49:47,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:49:47,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:49:47,902 INFO L87 Difference]: Start difference. First operand 806 states and 1085 transitions. Second operand 3 states. [2018-11-23 10:49:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:54,587 INFO L93 Difference]: Finished difference Result 1186 states and 1611 transitions. [2018-11-23 10:49:54,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:49:54,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-11-23 10:49:54,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:49:54,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:49:54,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2018-11-23 10:49:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:49:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 653 transitions. [2018-11-23 10:49:54,597 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 653 transitions. [2018-11-23 10:49:55,316 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 653 edges. 653 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:55,382 INFO L225 Difference]: With dead ends: 1186 [2018-11-23 10:49:55,382 INFO L226 Difference]: Without dead ends: 1183 [2018-11-23 10:49:55,383 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:49:55,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2018-11-23 10:49:57,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 929. [2018-11-23 10:49:57,344 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:49:57,344 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1183 states. Second operand 929 states. [2018-11-23 10:49:57,344 INFO L74 IsIncluded]: Start isIncluded. First operand 1183 states. Second operand 929 states. [2018-11-23 10:49:57,344 INFO L87 Difference]: Start difference. First operand 1183 states. Second operand 929 states. [2018-11-23 10:49:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:57,396 INFO L93 Difference]: Finished difference Result 1183 states and 1604 transitions. [2018-11-23 10:49:57,396 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1604 transitions. [2018-11-23 10:49:57,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:57,399 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:57,399 INFO L74 IsIncluded]: Start isIncluded. First operand 929 states. Second operand 1183 states. [2018-11-23 10:49:57,399 INFO L87 Difference]: Start difference. First operand 929 states. Second operand 1183 states. [2018-11-23 10:49:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:49:57,452 INFO L93 Difference]: Finished difference Result 1183 states and 1604 transitions. [2018-11-23 10:49:57,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1604 transitions. [2018-11-23 10:49:57,455 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:49:57,455 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:49:57,455 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:49:57,455 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:49:57,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2018-11-23 10:49:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1254 transitions. [2018-11-23 10:49:57,497 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1254 transitions. Word has length 44 [2018-11-23 10:49:57,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:49:57,497 INFO L480 AbstractCegarLoop]: Abstraction has 929 states and 1254 transitions. [2018-11-23 10:49:57,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:49:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1254 transitions. [2018-11-23 10:49:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 10:49:57,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:49:57,499 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:49:57,499 INFO L423 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:49:57,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:49:57,500 INFO L82 PathProgramCache]: Analyzing trace with hash -1952216181, now seen corresponding path program 1 times [2018-11-23 10:49:57,500 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:49:57,500 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:49:57,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:49:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:49:57,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:49:57,731 INFO L256 TraceCheckUtils]: 0: Hoare triple {45739#true} call ULTIMATE.init(); {45739#true} is VALID [2018-11-23 10:49:57,732 INFO L273 TraceCheckUtils]: 1: Hoare triple {45739#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {45739#true} is VALID [2018-11-23 10:49:57,732 INFO L273 TraceCheckUtils]: 2: Hoare triple {45739#true} assume true; {45739#true} is VALID [2018-11-23 10:49:57,732 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {45739#true} {45739#true} #1155#return; {45739#true} is VALID [2018-11-23 10:49:57,733 INFO L256 TraceCheckUtils]: 4: Hoare triple {45739#true} call #t~ret166 := main(); {45739#true} is VALID [2018-11-23 10:49:57,733 INFO L273 TraceCheckUtils]: 5: Hoare triple {45739#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {45739#true} is VALID [2018-11-23 10:49:57,733 INFO L256 TraceCheckUtils]: 6: Hoare triple {45739#true} call _BLAST_init(); {45739#true} is VALID [2018-11-23 10:49:57,733 INFO L273 TraceCheckUtils]: 7: Hoare triple {45739#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {45739#true} is VALID [2018-11-23 10:49:57,734 INFO L273 TraceCheckUtils]: 8: Hoare triple {45739#true} assume true; {45739#true} is VALID [2018-11-23 10:49:57,734 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {45739#true} {45739#true} #1063#return; {45739#true} is VALID [2018-11-23 10:49:57,734 INFO L273 TraceCheckUtils]: 10: Hoare triple {45739#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {45739#true} is VALID [2018-11-23 10:49:57,734 INFO L273 TraceCheckUtils]: 11: Hoare triple {45739#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {45739#true} is VALID [2018-11-23 10:49:57,734 INFO L256 TraceCheckUtils]: 12: Hoare triple {45739#true} call stub_driver_init(); {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 13: Hoare triple {45739#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 14: Hoare triple {45739#true} assume true; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {45739#true} {45739#true} #1065#return; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 16: Hoare triple {45739#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 17: Hoare triple {45739#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 18: Hoare triple {45739#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {45739#true} is VALID [2018-11-23 10:49:57,735 INFO L273 TraceCheckUtils]: 19: Hoare triple {45739#true} assume 2bv32 == ~tmp_ndt_3~0; {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L256 TraceCheckUtils]: 20: Hoare triple {45739#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 21: Hoare triple {45739#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 22: Hoare triple {45739#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 23: Hoare triple {45739#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 24: Hoare triple {45739#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 25: Hoare triple {45739#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {45739#true} is VALID [2018-11-23 10:49:57,736 INFO L273 TraceCheckUtils]: 26: Hoare triple {45739#true} assume !~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~mountName~0 := ~Irp__AssociatedIrp__SystemBuffer~0;~mountName__NameLength~0 := ~disketteExtension__DeviceName__Length~0;~__cil_tmp82~0 := ~bvadd32(~sizeof__USHORT~0, ~mountName__NameLength~0); {45739#true} is VALID [2018-11-23 10:49:57,737 INFO L273 TraceCheckUtils]: 27: Hoare triple {45739#true} assume !~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~__cil_tmp82~0);~ntStatus~3 := 0bv32;~Irp__IoStatus__Information~3 := ~bvadd32(~sizeof__USHORT~0, ~mountName__NameLength~0); {45825#(= FloppyDeviceControl_~ntStatus~3 (_ bv0 32))} is VALID [2018-11-23 10:49:57,737 INFO L273 TraceCheckUtils]: 28: Hoare triple {45825#(= FloppyDeviceControl_~ntStatus~3 (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {45829#(= FloppyDeviceControl_~__cil_tmp91~0 (_ bv0 32))} is VALID [2018-11-23 10:49:57,738 INFO L273 TraceCheckUtils]: 29: Hoare triple {45829#(= FloppyDeviceControl_~__cil_tmp91~0 (_ bv0 32))} assume !(259bv32 != ~__cil_tmp91~0); {45740#false} is VALID [2018-11-23 10:49:57,738 INFO L273 TraceCheckUtils]: 30: Hoare triple {45740#false} #res := ~ntStatus~3; {45740#false} is VALID [2018-11-23 10:49:57,738 INFO L273 TraceCheckUtils]: 31: Hoare triple {45740#false} assume true; {45740#false} is VALID [2018-11-23 10:49:57,738 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {45740#false} {45739#true} #1071#return; {45740#false} is VALID [2018-11-23 10:49:57,738 INFO L273 TraceCheckUtils]: 33: Hoare triple {45740#false} ~status~1 := #t~ret95;havoc #t~ret95; {45740#false} is VALID [2018-11-23 10:49:57,738 INFO L273 TraceCheckUtils]: 34: Hoare triple {45740#false} assume !(1bv32 == ~pended~0); {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 35: Hoare triple {45740#false} assume !(1bv32 == ~pended~0); {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 36: Hoare triple {45740#false} assume ~s~0 != ~UNLOADED~0; {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 37: Hoare triple {45740#false} assume 4294967295bv32 != ~status~1; {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 38: Hoare triple {45740#false} assume ~s~0 != ~SKIP2~0; {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 39: Hoare triple {45740#false} assume ~s~0 != ~IPC~0; {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 40: Hoare triple {45740#false} assume ~s~0 != ~DC~0; {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L256 TraceCheckUtils]: 41: Hoare triple {45740#false} call errorFn(); {45740#false} is VALID [2018-11-23 10:49:57,739 INFO L273 TraceCheckUtils]: 42: Hoare triple {45740#false} assume !false; {45740#false} is VALID [2018-11-23 10:49:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:49:57,740 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:49:57,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:49:57,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 10:49:57,743 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-23 10:49:57,743 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:49:57,743 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 10:49:57,796 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:49:57,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 10:49:57,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 10:49:57,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 10:49:57,797 INFO L87 Difference]: Start difference. First operand 929 states and 1254 transitions. Second operand 4 states. [2018-11-23 10:50:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:02,838 INFO L93 Difference]: Finished difference Result 957 states and 1287 transitions. [2018-11-23 10:50:02,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:50:02,838 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-23 10:50:02,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:02,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:50:02,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:50:02,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:50:02,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:50:02,844 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 516 transitions. [2018-11-23 10:50:03,397 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 516 edges. 516 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:03,443 INFO L225 Difference]: With dead ends: 957 [2018-11-23 10:50:03,444 INFO L226 Difference]: Without dead ends: 935 [2018-11-23 10:50:03,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:03,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2018-11-23 10:50:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 929. [2018-11-23 10:50:08,696 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:50:08,696 INFO L82 GeneralOperation]: Start isEquivalent. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:08,696 INFO L74 IsIncluded]: Start isIncluded. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:08,697 INFO L87 Difference]: Start difference. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:08,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:08,751 INFO L93 Difference]: Finished difference Result 935 states and 1261 transitions. [2018-11-23 10:50:08,751 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1261 transitions. [2018-11-23 10:50:08,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:08,754 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:08,754 INFO L74 IsIncluded]: Start isIncluded. First operand 929 states. Second operand 935 states. [2018-11-23 10:50:08,754 INFO L87 Difference]: Start difference. First operand 929 states. Second operand 935 states. [2018-11-23 10:50:08,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:08,790 INFO L93 Difference]: Finished difference Result 935 states and 1261 transitions. [2018-11-23 10:50:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1261 transitions. [2018-11-23 10:50:08,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:08,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:08,792 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:50:08,792 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:50:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2018-11-23 10:50:08,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1254 transitions. [2018-11-23 10:50:08,853 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1254 transitions. Word has length 43 [2018-11-23 10:50:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:50:08,853 INFO L480 AbstractCegarLoop]: Abstraction has 929 states and 1254 transitions. [2018-11-23 10:50:08,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 10:50:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1254 transitions. [2018-11-23 10:50:08,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-23 10:50:08,854 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:50:08,854 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:50:08,854 INFO L423 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:50:08,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:50:08,855 INFO L82 PathProgramCache]: Analyzing trace with hash -931147827, now seen corresponding path program 1 times [2018-11-23 10:50:08,855 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:50:08,855 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:50:08,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:50:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:09,028 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:50:09,079 INFO L256 TraceCheckUtils]: 0: Hoare triple {50306#true} call ULTIMATE.init(); {50306#true} is VALID [2018-11-23 10:50:09,079 INFO L273 TraceCheckUtils]: 1: Hoare triple {50306#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {50306#true} is VALID [2018-11-23 10:50:09,079 INFO L273 TraceCheckUtils]: 2: Hoare triple {50306#true} assume true; {50306#true} is VALID [2018-11-23 10:50:09,080 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {50306#true} {50306#true} #1155#return; {50306#true} is VALID [2018-11-23 10:50:09,080 INFO L256 TraceCheckUtils]: 4: Hoare triple {50306#true} call #t~ret166 := main(); {50306#true} is VALID [2018-11-23 10:50:09,080 INFO L273 TraceCheckUtils]: 5: Hoare triple {50306#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {50306#true} is VALID [2018-11-23 10:50:09,080 INFO L256 TraceCheckUtils]: 6: Hoare triple {50306#true} call _BLAST_init(); {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L273 TraceCheckUtils]: 7: Hoare triple {50306#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L273 TraceCheckUtils]: 8: Hoare triple {50306#true} assume true; {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {50306#true} {50306#true} #1063#return; {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L273 TraceCheckUtils]: 10: Hoare triple {50306#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L273 TraceCheckUtils]: 11: Hoare triple {50306#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {50306#true} is VALID [2018-11-23 10:50:09,081 INFO L256 TraceCheckUtils]: 12: Hoare triple {50306#true} call stub_driver_init(); {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 13: Hoare triple {50306#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 14: Hoare triple {50306#true} assume true; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {50306#true} {50306#true} #1065#return; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 16: Hoare triple {50306#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 17: Hoare triple {50306#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 18: Hoare triple {50306#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L273 TraceCheckUtils]: 19: Hoare triple {50306#true} assume 2bv32 == ~tmp_ndt_3~0; {50306#true} is VALID [2018-11-23 10:50:09,082 INFO L256 TraceCheckUtils]: 20: Hoare triple {50306#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 21: Hoare triple {50306#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 22: Hoare triple {50306#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 23: Hoare triple {50306#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 24: Hoare triple {50306#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 25: Hoare triple {50306#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {50306#true} is VALID [2018-11-23 10:50:09,083 INFO L273 TraceCheckUtils]: 26: Hoare triple {50306#true} assume !~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~mountName~0 := ~Irp__AssociatedIrp__SystemBuffer~0;~mountName__NameLength~0 := ~disketteExtension__DeviceName__Length~0;~__cil_tmp82~0 := ~bvadd32(~sizeof__USHORT~0, ~mountName__NameLength~0); {50306#true} is VALID [2018-11-23 10:50:09,084 INFO L273 TraceCheckUtils]: 27: Hoare triple {50306#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~__cil_tmp82~0);~ntStatus~3 := 2147483653bv32;~Irp__IoStatus__Information~3 := ~sizeof__MOUNTDEV_NAME~0; {50392#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv2147483643 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:09,084 INFO L273 TraceCheckUtils]: 28: Hoare triple {50392#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv2147483643 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {50396#(= (bvadd FloppyDeviceControl_~__cil_tmp91~0 (_ bv2147483643 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:09,085 INFO L273 TraceCheckUtils]: 29: Hoare triple {50396#(= (bvadd FloppyDeviceControl_~__cil_tmp91~0 (_ bv2147483643 32)) (_ bv0 32))} assume !(259bv32 != ~__cil_tmp91~0); {50307#false} is VALID [2018-11-23 10:50:09,085 INFO L273 TraceCheckUtils]: 30: Hoare triple {50307#false} #res := ~ntStatus~3; {50307#false} is VALID [2018-11-23 10:50:09,085 INFO L273 TraceCheckUtils]: 31: Hoare triple {50307#false} assume true; {50307#false} is VALID [2018-11-23 10:50:09,085 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {50307#false} {50306#true} #1071#return; {50307#false} is VALID [2018-11-23 10:50:09,085 INFO L273 TraceCheckUtils]: 33: Hoare triple {50307#false} ~status~1 := #t~ret95;havoc #t~ret95; {50307#false} is VALID [2018-11-23 10:50:09,085 INFO L273 TraceCheckUtils]: 34: Hoare triple {50307#false} assume !(1bv32 == ~pended~0); {50307#false} is VALID [2018-11-23 10:50:09,086 INFO L273 TraceCheckUtils]: 35: Hoare triple {50307#false} assume !(1bv32 == ~pended~0); {50307#false} is VALID [2018-11-23 10:50:09,086 INFO L273 TraceCheckUtils]: 36: Hoare triple {50307#false} assume ~s~0 != ~UNLOADED~0; {50307#false} is VALID [2018-11-23 10:50:09,086 INFO L273 TraceCheckUtils]: 37: Hoare triple {50307#false} assume 4294967295bv32 != ~status~1; {50307#false} is VALID [2018-11-23 10:50:09,086 INFO L273 TraceCheckUtils]: 38: Hoare triple {50307#false} assume ~s~0 != ~SKIP2~0; {50307#false} is VALID [2018-11-23 10:50:09,086 INFO L273 TraceCheckUtils]: 39: Hoare triple {50307#false} assume ~s~0 != ~IPC~0; {50307#false} is VALID [2018-11-23 10:50:09,087 INFO L273 TraceCheckUtils]: 40: Hoare triple {50307#false} assume ~s~0 != ~DC~0; {50307#false} is VALID [2018-11-23 10:50:09,087 INFO L256 TraceCheckUtils]: 41: Hoare triple {50307#false} call errorFn(); {50307#false} is VALID [2018-11-23 10:50:09,087 INFO L273 TraceCheckUtils]: 42: Hoare triple {50307#false} assume !false; {50307#false} is VALID [2018-11-23 10:50:09,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:50:09,088 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:50:09,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:50:09,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 10:50:09,092 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-23 10:50:09,092 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:50:09,092 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-23 10:50:09,163 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:09,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 10:50:09,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 10:50:09,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 10:50:09,164 INFO L87 Difference]: Start difference. First operand 929 states and 1254 transitions. Second operand 4 states. [2018-11-23 10:50:12,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:12,822 INFO L93 Difference]: Finished difference Result 957 states and 1287 transitions. [2018-11-23 10:50:12,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:50:12,822 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-23 10:50:12,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:12,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:50:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:50:12,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 10:50:12,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 516 transitions. [2018-11-23 10:50:12,828 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 516 transitions. [2018-11-23 10:50:13,399 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 516 edges. 516 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:13,469 INFO L225 Difference]: With dead ends: 957 [2018-11-23 10:50:13,469 INFO L226 Difference]: Without dead ends: 935 [2018-11-23 10:50:13,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:13,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2018-11-23 10:50:17,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 929. [2018-11-23 10:50:17,156 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:50:17,156 INFO L82 GeneralOperation]: Start isEquivalent. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:17,156 INFO L74 IsIncluded]: Start isIncluded. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:17,156 INFO L87 Difference]: Start difference. First operand 935 states. Second operand 929 states. [2018-11-23 10:50:17,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:17,210 INFO L93 Difference]: Finished difference Result 935 states and 1261 transitions. [2018-11-23 10:50:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1261 transitions. [2018-11-23 10:50:17,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:17,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:17,213 INFO L74 IsIncluded]: Start isIncluded. First operand 929 states. Second operand 935 states. [2018-11-23 10:50:17,213 INFO L87 Difference]: Start difference. First operand 929 states. Second operand 935 states. [2018-11-23 10:50:17,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:17,267 INFO L93 Difference]: Finished difference Result 935 states and 1261 transitions. [2018-11-23 10:50:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1261 transitions. [2018-11-23 10:50:17,270 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:17,270 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:17,271 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:50:17,271 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:50:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2018-11-23 10:50:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1254 transitions. [2018-11-23 10:50:17,321 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1254 transitions. Word has length 43 [2018-11-23 10:50:17,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:50:17,321 INFO L480 AbstractCegarLoop]: Abstraction has 929 states and 1254 transitions. [2018-11-23 10:50:17,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 10:50:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1254 transitions. [2018-11-23 10:50:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-23 10:50:17,323 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:50:17,323 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:50:17,323 INFO L423 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:50:17,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:50:17,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1421186615, now seen corresponding path program 1 times [2018-11-23 10:50:17,324 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:50:17,324 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:50:17,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:50:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:17,486 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:50:17,553 INFO L256 TraceCheckUtils]: 0: Hoare triple {54873#true} call ULTIMATE.init(); {54873#true} is VALID [2018-11-23 10:50:17,553 INFO L273 TraceCheckUtils]: 1: Hoare triple {54873#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {54873#true} is VALID [2018-11-23 10:50:17,554 INFO L273 TraceCheckUtils]: 2: Hoare triple {54873#true} assume true; {54873#true} is VALID [2018-11-23 10:50:17,554 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {54873#true} {54873#true} #1155#return; {54873#true} is VALID [2018-11-23 10:50:17,554 INFO L256 TraceCheckUtils]: 4: Hoare triple {54873#true} call #t~ret166 := main(); {54873#true} is VALID [2018-11-23 10:50:17,554 INFO L273 TraceCheckUtils]: 5: Hoare triple {54873#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L256 TraceCheckUtils]: 6: Hoare triple {54873#true} call _BLAST_init(); {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L273 TraceCheckUtils]: 7: Hoare triple {54873#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L273 TraceCheckUtils]: 8: Hoare triple {54873#true} assume true; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {54873#true} {54873#true} #1063#return; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L273 TraceCheckUtils]: 10: Hoare triple {54873#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L273 TraceCheckUtils]: 11: Hoare triple {54873#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {54873#true} is VALID [2018-11-23 10:50:17,555 INFO L256 TraceCheckUtils]: 12: Hoare triple {54873#true} call stub_driver_init(); {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 13: Hoare triple {54873#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 14: Hoare triple {54873#true} assume true; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {54873#true} {54873#true} #1065#return; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 16: Hoare triple {54873#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 17: Hoare triple {54873#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 18: Hoare triple {54873#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {54873#true} is VALID [2018-11-23 10:50:17,556 INFO L273 TraceCheckUtils]: 19: Hoare triple {54873#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {54873#true} is VALID [2018-11-23 10:50:17,557 INFO L273 TraceCheckUtils]: 20: Hoare triple {54873#true} assume 3bv32 == ~tmp_ndt_4~0; {54873#true} is VALID [2018-11-23 10:50:17,557 INFO L256 TraceCheckUtils]: 21: Hoare triple {54873#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {54873#true} is VALID [2018-11-23 10:50:17,557 INFO L273 TraceCheckUtils]: 22: Hoare triple {54873#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~0 := #t~nondet12;havoc #t~nondet12;~Irp__Tail__Overlay__CurrentStackLocation~0 := #t~nondet13;havoc #t~nondet13;havoc ~Irp__IoStatus__Information~1;havoc ~Irp__IoStatus__Status~1;~Irp__CurrentLocation~0 := #t~nondet14;havoc #t~nondet14;~disketteExtension__IsRemoved~0 := #t~nondet15;havoc #t~nondet15;~disketteExtension__IsStarted~0 := #t~nondet16;havoc #t~nondet16;~disketteExtension__TargetObject~0 := #t~nondet17;havoc #t~nondet17;havoc ~disketteExtension__HoldNewRequests~0;~disketteExtension__FloppyThread~0 := #t~nondet18;havoc #t~nondet18;~disketteExtension__InterfaceString__Buffer~0 := #t~nondet19;havoc #t~nondet19;~disketteExtension__InterfaceString~0 := #t~nondet20;havoc #t~nondet20;~disketteExtension__ArcName__Length~0 := #t~nondet21;havoc #t~nondet21;~disketteExtension__ArcName~0 := #t~nondet22;havoc #t~nondet22;~irpSp__MinorFunction~0 := #t~nondet23;havoc #t~nondet23;~IoGetConfigurationInformation__FloppyCount~0 := #t~nondet24;havoc #t~nondet24;havoc ~irpSp~0;havoc ~disketteExtension~0;havoc ~ntStatus~0;~doneEvent~0 := #t~nondet25;havoc #t~nondet25;havoc ~irpSp___0~0;havoc ~nextIrpSp~0;havoc ~nextIrpSp__Control~0;havoc ~irpSp___1~0;havoc ~irpSp__Context~0;havoc ~irpSp__Control~0;havoc ~__cil_tmp29~0;havoc ~__cil_tmp30~0;~ntStatus~0 := 0bv32;#t~post26 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post26);havoc #t~post26; {54873#true} is VALID [2018-11-23 10:50:17,557 INFO L273 TraceCheckUtils]: 23: Hoare triple {54873#true} assume 1bv32 == ~PagingReferenceCount~0; {54873#true} is VALID [2018-11-23 10:50:17,557 INFO L273 TraceCheckUtils]: 24: Hoare triple {54873#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 25: Hoare triple {54873#true} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 26: Hoare triple {54873#true} assume !(0bv32 == ~irpSp__MinorFunction~0); {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 27: Hoare triple {54873#true} assume 5bv32 == ~irpSp__MinorFunction~0; {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 28: Hoare triple {54873#true} assume 5bv32 == ~irpSp__MinorFunction~0; {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 29: Hoare triple {54873#true} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L256 TraceCheckUtils]: 30: Hoare triple {54873#true} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {54873#true} is VALID [2018-11-23 10:50:17,558 INFO L273 TraceCheckUtils]: 31: Hoare triple {54873#true} ~Irp := #in~Irp;~DisketteExtension := #in~DisketteExtension;havoc ~status~0;~threadHandle~0 := #t~nondet0;havoc #t~nondet0;~DisketteExtension__PoweringDown~0 := #t~nondet1;havoc #t~nondet1;~DisketteExtension__ThreadReferenceCount~0 := #t~nondet2;havoc #t~nondet2;~DisketteExtension__FloppyThread~0 := #t~nondet3;havoc #t~nondet3;havoc ~Irp__IoStatus__Status~0;havoc ~Irp__IoStatus__Information~0;havoc ~Irp__Tail__Overlay__CurrentStackLocation__Control~0;~ObjAttributes~0 := #t~nondet4;havoc #t~nondet4;havoc ~__cil_tmp12~0;havoc ~__cil_tmp13~0; {54873#true} is VALID [2018-11-23 10:50:17,564 INFO L273 TraceCheckUtils]: 32: Hoare triple {54873#true} assume 1bv32 == ~DisketteExtension__PoweringDown~0;~myStatus~0 := 3221226195bv32;~Irp__IoStatus__Status~0 := 3221226195bv32;~Irp__IoStatus__Information~0 := 0bv32;#res := 3221226195bv32; {54974#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} is VALID [2018-11-23 10:50:17,564 INFO L273 TraceCheckUtils]: 33: Hoare triple {54974#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} assume true; {54974#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} is VALID [2018-11-23 10:50:17,565 INFO L268 TraceCheckUtils]: 34: Hoare quadruple {54974#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} {54873#true} #1023#return; {54981#(= (_ bv3221226195 32) |FloppyPnp_#t~ret31|)} is VALID [2018-11-23 10:50:17,565 INFO L273 TraceCheckUtils]: 35: Hoare triple {54981#(= (_ bv3221226195 32) |FloppyPnp_#t~ret31|)} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {54985#(= (bvadd FloppyPnp_~__cil_tmp29~0 (_ bv1073741101 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:17,566 INFO L273 TraceCheckUtils]: 36: Hoare triple {54985#(= (bvadd FloppyPnp_~__cil_tmp29~0 (_ bv1073741101 32)) (_ bv0 32))} assume 259bv32 == ~__cil_tmp29~0; {54874#false} is VALID [2018-11-23 10:50:17,566 INFO L256 TraceCheckUtils]: 37: Hoare triple {54874#false} call #t~ret32 := KeWaitForSingleObject(~disketteExtension__FloppyThread~0, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {54874#false} is VALID [2018-11-23 10:50:17,566 INFO L273 TraceCheckUtils]: 38: Hoare triple {54874#false} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {54874#false} is VALID [2018-11-23 10:50:17,566 INFO L273 TraceCheckUtils]: 39: Hoare triple {54874#false} assume ~s~0 == ~MPR3~0; {54874#false} is VALID [2018-11-23 10:50:17,566 INFO L273 TraceCheckUtils]: 40: Hoare triple {54874#false} assume !(1bv32 == ~setEventCalled~0); {54874#false} is VALID [2018-11-23 10:50:17,566 INFO L273 TraceCheckUtils]: 41: Hoare triple {54874#false} assume !(1bv32 == ~customIrp~0); {54874#false} is VALID [2018-11-23 10:50:17,567 INFO L273 TraceCheckUtils]: 42: Hoare triple {54874#false} assume ~s~0 == ~MPR3~0; {54874#false} is VALID [2018-11-23 10:50:17,567 INFO L256 TraceCheckUtils]: 43: Hoare triple {54874#false} call errorFn(); {54874#false} is VALID [2018-11-23 10:50:17,567 INFO L273 TraceCheckUtils]: 44: Hoare triple {54874#false} assume !false; {54874#false} is VALID [2018-11-23 10:50:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:50:17,568 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:50:17,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:50:17,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:50:17,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-23 10:50:17,571 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:50:17,572 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:50:17,623 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:17,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:50:17,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:50:17,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:17,624 INFO L87 Difference]: Start difference. First operand 929 states and 1254 transitions. Second operand 5 states. [2018-11-23 10:50:23,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:23,257 INFO L93 Difference]: Finished difference Result 1009 states and 1355 transitions. [2018-11-23 10:50:23,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 10:50:23,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-23 10:50:23,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:23,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2018-11-23 10:50:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 571 transitions. [2018-11-23 10:50:23,268 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 571 transitions. [2018-11-23 10:50:23,879 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 571 edges. 571 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:23,933 INFO L225 Difference]: With dead ends: 1009 [2018-11-23 10:50:23,934 INFO L226 Difference]: Without dead ends: 939 [2018-11-23 10:50:23,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-11-23 10:50:27,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 933. [2018-11-23 10:50:27,595 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:50:27,595 INFO L82 GeneralOperation]: Start isEquivalent. First operand 939 states. Second operand 933 states. [2018-11-23 10:50:27,595 INFO L74 IsIncluded]: Start isIncluded. First operand 939 states. Second operand 933 states. [2018-11-23 10:50:27,595 INFO L87 Difference]: Start difference. First operand 939 states. Second operand 933 states. [2018-11-23 10:50:27,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:27,643 INFO L93 Difference]: Finished difference Result 939 states and 1267 transitions. [2018-11-23 10:50:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1267 transitions. [2018-11-23 10:50:27,645 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:27,645 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:27,645 INFO L74 IsIncluded]: Start isIncluded. First operand 933 states. Second operand 939 states. [2018-11-23 10:50:27,645 INFO L87 Difference]: Start difference. First operand 933 states. Second operand 939 states. [2018-11-23 10:50:27,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:27,679 INFO L93 Difference]: Finished difference Result 939 states and 1267 transitions. [2018-11-23 10:50:27,679 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1267 transitions. [2018-11-23 10:50:27,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:27,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:27,681 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:50:27,681 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:50:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-11-23 10:50:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1259 transitions. [2018-11-23 10:50:27,749 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1259 transitions. Word has length 45 [2018-11-23 10:50:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:50:27,750 INFO L480 AbstractCegarLoop]: Abstraction has 933 states and 1259 transitions. [2018-11-23 10:50:27,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:50:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1259 transitions. [2018-11-23 10:50:27,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-23 10:50:27,751 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:50:27,751 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:50:27,751 INFO L423 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:50:27,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:50:27,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1230825012, now seen corresponding path program 1 times [2018-11-23 10:50:27,752 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:50:27,752 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:50:27,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:50:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:27,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:50:28,001 INFO L256 TraceCheckUtils]: 0: Hoare triple {59525#true} call ULTIMATE.init(); {59525#true} is VALID [2018-11-23 10:50:28,002 INFO L273 TraceCheckUtils]: 1: Hoare triple {59525#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {59525#true} is VALID [2018-11-23 10:50:28,002 INFO L273 TraceCheckUtils]: 2: Hoare triple {59525#true} assume true; {59525#true} is VALID [2018-11-23 10:50:28,002 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {59525#true} {59525#true} #1155#return; {59525#true} is VALID [2018-11-23 10:50:28,002 INFO L256 TraceCheckUtils]: 4: Hoare triple {59525#true} call #t~ret166 := main(); {59525#true} is VALID [2018-11-23 10:50:28,003 INFO L273 TraceCheckUtils]: 5: Hoare triple {59525#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {59525#true} is VALID [2018-11-23 10:50:28,003 INFO L256 TraceCheckUtils]: 6: Hoare triple {59525#true} call _BLAST_init(); {59525#true} is VALID [2018-11-23 10:50:28,003 INFO L273 TraceCheckUtils]: 7: Hoare triple {59525#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {59525#true} is VALID [2018-11-23 10:50:28,003 INFO L273 TraceCheckUtils]: 8: Hoare triple {59525#true} assume true; {59525#true} is VALID [2018-11-23 10:50:28,003 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {59525#true} {59525#true} #1063#return; {59525#true} is VALID [2018-11-23 10:50:28,004 INFO L273 TraceCheckUtils]: 10: Hoare triple {59525#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {59525#true} is VALID [2018-11-23 10:50:28,004 INFO L273 TraceCheckUtils]: 11: Hoare triple {59525#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {59525#true} is VALID [2018-11-23 10:50:28,004 INFO L256 TraceCheckUtils]: 12: Hoare triple {59525#true} call stub_driver_init(); {59525#true} is VALID [2018-11-23 10:50:28,004 INFO L273 TraceCheckUtils]: 13: Hoare triple {59525#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 14: Hoare triple {59525#true} assume true; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {59525#true} {59525#true} #1065#return; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 16: Hoare triple {59525#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 17: Hoare triple {59525#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 18: Hoare triple {59525#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 19: Hoare triple {59525#true} assume 2bv32 == ~tmp_ndt_3~0; {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L256 TraceCheckUtils]: 20: Hoare triple {59525#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {59525#true} is VALID [2018-11-23 10:50:28,005 INFO L273 TraceCheckUtils]: 21: Hoare triple {59525#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L273 TraceCheckUtils]: 22: Hoare triple {59525#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L273 TraceCheckUtils]: 23: Hoare triple {59525#true} assume 0bv32 != ~disketteExtension__IsRemoved~1;~Irp__IoStatus__Information~3 := 0bv32;~Irp__IoStatus__Status___0~0 := 3221225558bv32;~myStatus~0 := 3221225558bv32; {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L256 TraceCheckUtils]: 24: Hoare triple {59525#true} call IofCompleteRequest(~Irp, 0bv32); {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L273 TraceCheckUtils]: 25: Hoare triple {59525#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L273 TraceCheckUtils]: 26: Hoare triple {59525#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L273 TraceCheckUtils]: 27: Hoare triple {59525#true} assume true; {59525#true} is VALID [2018-11-23 10:50:28,006 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {59525#true} {59525#true} #1129#return; {59525#true} is VALID [2018-11-23 10:50:28,007 INFO L273 TraceCheckUtils]: 29: Hoare triple {59525#true} #res := 3221225558bv32; {59617#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,007 INFO L273 TraceCheckUtils]: 30: Hoare triple {59617#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} assume true; {59617#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,008 INFO L268 TraceCheckUtils]: 31: Hoare quadruple {59617#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} {59525#true} #1071#return; {59624#(= (_ bv3221225558 32) |main_#t~ret95|)} is VALID [2018-11-23 10:50:28,008 INFO L273 TraceCheckUtils]: 32: Hoare triple {59624#(= (_ bv3221225558 32) |main_#t~ret95|)} ~status~1 := #t~ret95;havoc #t~ret95; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,009 INFO L273 TraceCheckUtils]: 33: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,009 INFO L273 TraceCheckUtils]: 34: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,009 INFO L273 TraceCheckUtils]: 35: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,010 INFO L273 TraceCheckUtils]: 36: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,010 INFO L273 TraceCheckUtils]: 37: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,011 INFO L273 TraceCheckUtils]: 38: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,011 INFO L273 TraceCheckUtils]: 39: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,012 INFO L273 TraceCheckUtils]: 40: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,012 INFO L273 TraceCheckUtils]: 41: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:28,013 INFO L273 TraceCheckUtils]: 42: Hoare triple {59628#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {59526#false} is VALID [2018-11-23 10:50:28,013 INFO L256 TraceCheckUtils]: 43: Hoare triple {59526#false} call errorFn(); {59526#false} is VALID [2018-11-23 10:50:28,014 INFO L273 TraceCheckUtils]: 44: Hoare triple {59526#false} assume !false; {59526#false} is VALID [2018-11-23 10:50:28,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:50:28,016 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:50:28,019 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:50:28,019 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:50:28,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-23 10:50:28,020 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:50:28,020 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:50:28,074 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:28,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:50:28,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:50:28,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:28,075 INFO L87 Difference]: Start difference. First operand 933 states and 1259 transitions. Second operand 5 states. [2018-11-23 10:50:36,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:36,347 INFO L93 Difference]: Finished difference Result 949 states and 1274 transitions. [2018-11-23 10:50:36,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 10:50:36,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-23 10:50:36,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:36,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 500 transitions. [2018-11-23 10:50:36,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:36,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 500 transitions. [2018-11-23 10:50:36,357 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 500 transitions. [2018-11-23 10:50:37,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 500 edges. 500 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:37,173 INFO L225 Difference]: With dead ends: 949 [2018-11-23 10:50:37,173 INFO L226 Difference]: Without dead ends: 931 [2018-11-23 10:50:37,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:37,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2018-11-23 10:50:39,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 931. [2018-11-23 10:50:39,332 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:50:39,332 INFO L82 GeneralOperation]: Start isEquivalent. First operand 931 states. Second operand 931 states. [2018-11-23 10:50:39,332 INFO L74 IsIncluded]: Start isIncluded. First operand 931 states. Second operand 931 states. [2018-11-23 10:50:39,333 INFO L87 Difference]: Start difference. First operand 931 states. Second operand 931 states. [2018-11-23 10:50:39,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:39,372 INFO L93 Difference]: Finished difference Result 931 states and 1255 transitions. [2018-11-23 10:50:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1255 transitions. [2018-11-23 10:50:39,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:39,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:39,374 INFO L74 IsIncluded]: Start isIncluded. First operand 931 states. Second operand 931 states. [2018-11-23 10:50:39,374 INFO L87 Difference]: Start difference. First operand 931 states. Second operand 931 states. [2018-11-23 10:50:39,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:39,407 INFO L93 Difference]: Finished difference Result 931 states and 1255 transitions. [2018-11-23 10:50:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1255 transitions. [2018-11-23 10:50:39,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:39,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:39,409 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:50:39,409 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:50:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2018-11-23 10:50:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1255 transitions. [2018-11-23 10:50:39,453 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1255 transitions. Word has length 45 [2018-11-23 10:50:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:50:39,454 INFO L480 AbstractCegarLoop]: Abstraction has 931 states and 1255 transitions. [2018-11-23 10:50:39,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:50:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1255 transitions. [2018-11-23 10:50:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 10:50:39,454 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:50:39,455 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:50:39,455 INFO L423 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:50:39,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:50:39,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1277595138, now seen corresponding path program 1 times [2018-11-23 10:50:39,455 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:50:39,455 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:50:39,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:50:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:39,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:50:39,681 INFO L256 TraceCheckUtils]: 0: Hoare triple {64077#true} call ULTIMATE.init(); {64077#true} is VALID [2018-11-23 10:50:39,682 INFO L273 TraceCheckUtils]: 1: Hoare triple {64077#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {64077#true} is VALID [2018-11-23 10:50:39,682 INFO L273 TraceCheckUtils]: 2: Hoare triple {64077#true} assume true; {64077#true} is VALID [2018-11-23 10:50:39,682 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {64077#true} {64077#true} #1155#return; {64077#true} is VALID [2018-11-23 10:50:39,682 INFO L256 TraceCheckUtils]: 4: Hoare triple {64077#true} call #t~ret166 := main(); {64077#true} is VALID [2018-11-23 10:50:39,682 INFO L273 TraceCheckUtils]: 5: Hoare triple {64077#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {64077#true} is VALID [2018-11-23 10:50:39,683 INFO L256 TraceCheckUtils]: 6: Hoare triple {64077#true} call _BLAST_init(); {64077#true} is VALID [2018-11-23 10:50:39,683 INFO L273 TraceCheckUtils]: 7: Hoare triple {64077#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {64077#true} is VALID [2018-11-23 10:50:39,683 INFO L273 TraceCheckUtils]: 8: Hoare triple {64077#true} assume true; {64077#true} is VALID [2018-11-23 10:50:39,683 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {64077#true} {64077#true} #1063#return; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 10: Hoare triple {64077#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 11: Hoare triple {64077#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L256 TraceCheckUtils]: 12: Hoare triple {64077#true} call stub_driver_init(); {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 13: Hoare triple {64077#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 14: Hoare triple {64077#true} assume true; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {64077#true} {64077#true} #1065#return; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 16: Hoare triple {64077#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {64077#true} is VALID [2018-11-23 10:50:39,684 INFO L273 TraceCheckUtils]: 17: Hoare triple {64077#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 18: Hoare triple {64077#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 19: Hoare triple {64077#true} assume 2bv32 == ~tmp_ndt_3~0; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L256 TraceCheckUtils]: 20: Hoare triple {64077#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 21: Hoare triple {64077#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 22: Hoare triple {64077#true} assume 0bv32 != ~disketteExtension__HoldNewRequests~2; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 23: Hoare triple {64077#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 != ~__cil_tmp41~0; {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L256 TraceCheckUtils]: 24: Hoare triple {64077#true} call #t~ret151 := FloppyQueueRequest(~disketteExtension~2, ~Irp); {64077#true} is VALID [2018-11-23 10:50:39,685 INFO L273 TraceCheckUtils]: 25: Hoare triple {64077#true} ~DisketteExtension := #in~DisketteExtension;~Irp := #in~Irp;havoc ~Irp__IoStatus__Status~4;havoc ~Irp__IoStatus__Information~4;havoc ~Irp__Tail__Overlay__CurrentStackLocation__Control~1;havoc ~ntStatus~4;~FAKE_CONDITION~1 := #t~nondet163;havoc #t~nondet163;#t~post164 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post164);havoc #t~post164; {64077#true} is VALID [2018-11-23 10:50:39,686 INFO L273 TraceCheckUtils]: 26: Hoare triple {64077#true} assume 1bv32 == ~PagingReferenceCount~0; {64077#true} is VALID [2018-11-23 10:50:39,686 INFO L273 TraceCheckUtils]: 27: Hoare triple {64077#true} assume !(0bv32 != ~FAKE_CONDITION~1);~Irp__IoStatus__Status~4 := 259bv32;~myStatus~0 := 259bv32; {64077#true} is VALID [2018-11-23 10:50:39,686 INFO L273 TraceCheckUtils]: 28: Hoare triple {64077#true} assume 0bv32 == ~pended~0;~pended~0 := 1bv32; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,687 INFO L273 TraceCheckUtils]: 29: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} ~ntStatus~4 := 259bv32; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,687 INFO L273 TraceCheckUtils]: 30: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} #res := ~ntStatus~4; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,687 INFO L273 TraceCheckUtils]: 31: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} assume true; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,688 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {64166#(= (_ bv1 32) ~pended~0)} {64077#true} #1127#return; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,688 INFO L273 TraceCheckUtils]: 33: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} ~ntStatus~3 := #t~ret151;havoc #t~ret151;#res := ~ntStatus~3; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,688 INFO L273 TraceCheckUtils]: 34: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} assume true; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,689 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {64166#(= (_ bv1 32) ~pended~0)} {64077#true} #1071#return; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,690 INFO L273 TraceCheckUtils]: 36: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} ~status~1 := #t~ret95;havoc #t~ret95; {64166#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-23 10:50:39,690 INFO L273 TraceCheckUtils]: 37: Hoare triple {64166#(= (_ bv1 32) ~pended~0)} assume !(1bv32 == ~pended~0); {64078#false} is VALID [2018-11-23 10:50:39,691 INFO L273 TraceCheckUtils]: 38: Hoare triple {64078#false} assume !(1bv32 == ~pended~0); {64078#false} is VALID [2018-11-23 10:50:39,691 INFO L273 TraceCheckUtils]: 39: Hoare triple {64078#false} assume ~s~0 != ~UNLOADED~0; {64078#false} is VALID [2018-11-23 10:50:39,691 INFO L273 TraceCheckUtils]: 40: Hoare triple {64078#false} assume 4294967295bv32 != ~status~1; {64078#false} is VALID [2018-11-23 10:50:39,691 INFO L273 TraceCheckUtils]: 41: Hoare triple {64078#false} assume !(~s~0 != ~SKIP2~0); {64078#false} is VALID [2018-11-23 10:50:39,692 INFO L273 TraceCheckUtils]: 42: Hoare triple {64078#false} assume 1bv32 == ~pended~0; {64078#false} is VALID [2018-11-23 10:50:39,692 INFO L273 TraceCheckUtils]: 43: Hoare triple {64078#false} assume 259bv32 != ~status~1; {64078#false} is VALID [2018-11-23 10:50:39,692 INFO L256 TraceCheckUtils]: 44: Hoare triple {64078#false} call errorFn(); {64078#false} is VALID [2018-11-23 10:50:39,692 INFO L273 TraceCheckUtils]: 45: Hoare triple {64078#false} assume !false; {64078#false} is VALID [2018-11-23 10:50:39,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:50:39,695 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:50:39,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:50:39,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:50:39,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-11-23 10:50:39,702 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:50:39,702 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:50:39,771 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:39,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:50:39,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:50:39,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:50:39,772 INFO L87 Difference]: Start difference. First operand 931 states and 1255 transitions. Second operand 3 states. [2018-11-23 10:50:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:45,054 INFO L93 Difference]: Finished difference Result 962 states and 1292 transitions. [2018-11-23 10:50:45,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:50:45,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-11-23 10:50:45,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:45,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:50:45,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2018-11-23 10:50:45,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 10:50:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 595 transitions. [2018-11-23 10:50:45,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 595 transitions. [2018-11-23 10:50:45,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 595 edges. 595 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:45,744 INFO L225 Difference]: With dead ends: 962 [2018-11-23 10:50:45,744 INFO L226 Difference]: Without dead ends: 914 [2018-11-23 10:50:45,745 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:50:45,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2018-11-23 10:50:52,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 909. [2018-11-23 10:50:52,893 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:50:52,893 INFO L82 GeneralOperation]: Start isEquivalent. First operand 914 states. Second operand 909 states. [2018-11-23 10:50:52,893 INFO L74 IsIncluded]: Start isIncluded. First operand 914 states. Second operand 909 states. [2018-11-23 10:50:52,894 INFO L87 Difference]: Start difference. First operand 914 states. Second operand 909 states. [2018-11-23 10:50:52,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:52,931 INFO L93 Difference]: Finished difference Result 914 states and 1227 transitions. [2018-11-23 10:50:52,931 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1227 transitions. [2018-11-23 10:50:52,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:52,933 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:52,933 INFO L74 IsIncluded]: Start isIncluded. First operand 909 states. Second operand 914 states. [2018-11-23 10:50:52,933 INFO L87 Difference]: Start difference. First operand 909 states. Second operand 914 states. [2018-11-23 10:50:52,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:52,968 INFO L93 Difference]: Finished difference Result 914 states and 1227 transitions. [2018-11-23 10:50:52,968 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1227 transitions. [2018-11-23 10:50:52,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:50:52,970 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:50:52,970 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:50:52,970 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:50:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-11-23 10:50:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1223 transitions. [2018-11-23 10:50:53,012 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1223 transitions. Word has length 46 [2018-11-23 10:50:53,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:50:53,012 INFO L480 AbstractCegarLoop]: Abstraction has 909 states and 1223 transitions. [2018-11-23 10:50:53,012 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:50:53,012 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1223 transitions. [2018-11-23 10:50:53,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 10:50:53,013 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:50:53,013 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:50:53,013 INFO L423 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:50:53,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:50:53,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1678296023, now seen corresponding path program 1 times [2018-11-23 10:50:53,014 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:50:53,014 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:50:53,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:50:53,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:50:53,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:50:53,275 INFO L256 TraceCheckUtils]: 0: Hoare triple {68591#true} call ULTIMATE.init(); {68591#true} is VALID [2018-11-23 10:50:53,276 INFO L273 TraceCheckUtils]: 1: Hoare triple {68591#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {68591#true} is VALID [2018-11-23 10:50:53,276 INFO L273 TraceCheckUtils]: 2: Hoare triple {68591#true} assume true; {68591#true} is VALID [2018-11-23 10:50:53,276 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {68591#true} {68591#true} #1155#return; {68591#true} is VALID [2018-11-23 10:50:53,276 INFO L256 TraceCheckUtils]: 4: Hoare triple {68591#true} call #t~ret166 := main(); {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L273 TraceCheckUtils]: 5: Hoare triple {68591#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L256 TraceCheckUtils]: 6: Hoare triple {68591#true} call _BLAST_init(); {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L273 TraceCheckUtils]: 7: Hoare triple {68591#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L273 TraceCheckUtils]: 8: Hoare triple {68591#true} assume true; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {68591#true} {68591#true} #1063#return; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L273 TraceCheckUtils]: 10: Hoare triple {68591#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L273 TraceCheckUtils]: 11: Hoare triple {68591#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {68591#true} is VALID [2018-11-23 10:50:53,277 INFO L256 TraceCheckUtils]: 12: Hoare triple {68591#true} call stub_driver_init(); {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 13: Hoare triple {68591#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 14: Hoare triple {68591#true} assume true; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {68591#true} {68591#true} #1065#return; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 16: Hoare triple {68591#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 17: Hoare triple {68591#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 18: Hoare triple {68591#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 19: Hoare triple {68591#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {68591#true} is VALID [2018-11-23 10:50:53,278 INFO L273 TraceCheckUtils]: 20: Hoare triple {68591#true} assume 3bv32 == ~tmp_ndt_4~0; {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L256 TraceCheckUtils]: 21: Hoare triple {68591#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L273 TraceCheckUtils]: 22: Hoare triple {68591#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~0 := #t~nondet12;havoc #t~nondet12;~Irp__Tail__Overlay__CurrentStackLocation~0 := #t~nondet13;havoc #t~nondet13;havoc ~Irp__IoStatus__Information~1;havoc ~Irp__IoStatus__Status~1;~Irp__CurrentLocation~0 := #t~nondet14;havoc #t~nondet14;~disketteExtension__IsRemoved~0 := #t~nondet15;havoc #t~nondet15;~disketteExtension__IsStarted~0 := #t~nondet16;havoc #t~nondet16;~disketteExtension__TargetObject~0 := #t~nondet17;havoc #t~nondet17;havoc ~disketteExtension__HoldNewRequests~0;~disketteExtension__FloppyThread~0 := #t~nondet18;havoc #t~nondet18;~disketteExtension__InterfaceString__Buffer~0 := #t~nondet19;havoc #t~nondet19;~disketteExtension__InterfaceString~0 := #t~nondet20;havoc #t~nondet20;~disketteExtension__ArcName__Length~0 := #t~nondet21;havoc #t~nondet21;~disketteExtension__ArcName~0 := #t~nondet22;havoc #t~nondet22;~irpSp__MinorFunction~0 := #t~nondet23;havoc #t~nondet23;~IoGetConfigurationInformation__FloppyCount~0 := #t~nondet24;havoc #t~nondet24;havoc ~irpSp~0;havoc ~disketteExtension~0;havoc ~ntStatus~0;~doneEvent~0 := #t~nondet25;havoc #t~nondet25;havoc ~irpSp___0~0;havoc ~nextIrpSp~0;havoc ~nextIrpSp__Control~0;havoc ~irpSp___1~0;havoc ~irpSp__Context~0;havoc ~irpSp__Control~0;havoc ~__cil_tmp29~0;havoc ~__cil_tmp30~0;~ntStatus~0 := 0bv32;#t~post26 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post26);havoc #t~post26; {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L273 TraceCheckUtils]: 23: Hoare triple {68591#true} assume 1bv32 == ~PagingReferenceCount~0; {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L273 TraceCheckUtils]: 24: Hoare triple {68591#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L273 TraceCheckUtils]: 25: Hoare triple {68591#true} assume 0bv32 != ~disketteExtension__IsRemoved~0;~Irp__IoStatus__Information~1 := 0bv32;~Irp__IoStatus__Status~1 := 3221225558bv32;~myStatus~0 := 3221225558bv32; {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L256 TraceCheckUtils]: 26: Hoare triple {68591#true} call IofCompleteRequest(~Irp, 0bv32); {68591#true} is VALID [2018-11-23 10:50:53,279 INFO L273 TraceCheckUtils]: 27: Hoare triple {68591#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {68591#true} is VALID [2018-11-23 10:50:53,280 INFO L273 TraceCheckUtils]: 28: Hoare triple {68591#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {68591#true} is VALID [2018-11-23 10:50:53,280 INFO L273 TraceCheckUtils]: 29: Hoare triple {68591#true} assume true; {68591#true} is VALID [2018-11-23 10:50:53,280 INFO L268 TraceCheckUtils]: 30: Hoare quadruple {68591#true} {68591#true} #1015#return; {68591#true} is VALID [2018-11-23 10:50:53,280 INFO L273 TraceCheckUtils]: 31: Hoare triple {68591#true} #res := 3221225558bv32; {68689#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,281 INFO L273 TraceCheckUtils]: 32: Hoare triple {68689#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} assume true; {68689#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,281 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {68689#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} {68591#true} #1073#return; {68696#(= (_ bv3221225558 32) |main_#t~ret96|)} is VALID [2018-11-23 10:50:53,282 INFO L273 TraceCheckUtils]: 34: Hoare triple {68696#(= (_ bv3221225558 32) |main_#t~ret96|)} ~status~1 := #t~ret96;havoc #t~ret96; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,282 INFO L273 TraceCheckUtils]: 35: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,282 INFO L273 TraceCheckUtils]: 36: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,283 INFO L273 TraceCheckUtils]: 37: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,283 INFO L273 TraceCheckUtils]: 38: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,283 INFO L273 TraceCheckUtils]: 39: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,284 INFO L273 TraceCheckUtils]: 40: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,284 INFO L273 TraceCheckUtils]: 41: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,284 INFO L273 TraceCheckUtils]: 42: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,285 INFO L273 TraceCheckUtils]: 43: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-23 10:50:53,285 INFO L273 TraceCheckUtils]: 44: Hoare triple {68700#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {68592#false} is VALID [2018-11-23 10:50:53,286 INFO L256 TraceCheckUtils]: 45: Hoare triple {68592#false} call errorFn(); {68592#false} is VALID [2018-11-23 10:50:53,286 INFO L273 TraceCheckUtils]: 46: Hoare triple {68592#false} assume !false; {68592#false} is VALID [2018-11-23 10:50:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:50:53,288 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:50:53,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:50:53,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:50:53,294 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-23 10:50:53,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:50:53,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:50:53,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:53,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:50:53,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:50:53,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:53,361 INFO L87 Difference]: Start difference. First operand 909 states and 1223 transitions. Second operand 5 states. [2018-11-23 10:50:57,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:50:57,962 INFO L93 Difference]: Finished difference Result 925 states and 1238 transitions. [2018-11-23 10:50:57,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 10:50:57,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-23 10:50:57,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:50:57,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2018-11-23 10:50:57,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:50:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2018-11-23 10:50:57,969 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 493 transitions. [2018-11-23 10:50:58,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 493 edges. 493 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:50:58,538 INFO L225 Difference]: With dead ends: 925 [2018-11-23 10:50:58,539 INFO L226 Difference]: Without dead ends: 907 [2018-11-23 10:50:58,539 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:50:58,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2018-11-23 10:51:02,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 907. [2018-11-23 10:51:02,801 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:51:02,801 INFO L82 GeneralOperation]: Start isEquivalent. First operand 907 states. Second operand 907 states. [2018-11-23 10:51:02,801 INFO L74 IsIncluded]: Start isIncluded. First operand 907 states. Second operand 907 states. [2018-11-23 10:51:02,802 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 907 states. [2018-11-23 10:51:02,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:02,838 INFO L93 Difference]: Finished difference Result 907 states and 1219 transitions. [2018-11-23 10:51:02,838 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1219 transitions. [2018-11-23 10:51:02,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:02,840 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:02,840 INFO L74 IsIncluded]: Start isIncluded. First operand 907 states. Second operand 907 states. [2018-11-23 10:51:02,840 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 907 states. [2018-11-23 10:51:02,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:02,873 INFO L93 Difference]: Finished difference Result 907 states and 1219 transitions. [2018-11-23 10:51:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1219 transitions. [2018-11-23 10:51:02,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:02,875 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:02,875 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:51:02,876 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:51:02,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 907 states. [2018-11-23 10:51:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1219 transitions. [2018-11-23 10:51:02,916 INFO L78 Accepts]: Start accepts. Automaton has 907 states and 1219 transitions. Word has length 47 [2018-11-23 10:51:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:51:02,917 INFO L480 AbstractCegarLoop]: Abstraction has 907 states and 1219 transitions. [2018-11-23 10:51:02,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:51:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states and 1219 transitions. [2018-11-23 10:51:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-23 10:51:02,918 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:51:02,918 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:51:02,918 INFO L423 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:51:02,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:51:02,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1437549762, now seen corresponding path program 1 times [2018-11-23 10:51:02,918 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:51:02,918 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:51:02,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:51:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:03,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:03,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:51:03,225 INFO L256 TraceCheckUtils]: 0: Hoare triple {73045#true} call ULTIMATE.init(); {73045#true} is VALID [2018-11-23 10:51:03,225 INFO L273 TraceCheckUtils]: 1: Hoare triple {73045#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {73045#true} is VALID [2018-11-23 10:51:03,225 INFO L273 TraceCheckUtils]: 2: Hoare triple {73045#true} assume true; {73045#true} is VALID [2018-11-23 10:51:03,225 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {73045#true} {73045#true} #1155#return; {73045#true} is VALID [2018-11-23 10:51:03,225 INFO L256 TraceCheckUtils]: 4: Hoare triple {73045#true} call #t~ret166 := main(); {73045#true} is VALID [2018-11-23 10:51:03,226 INFO L273 TraceCheckUtils]: 5: Hoare triple {73045#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {73045#true} is VALID [2018-11-23 10:51:03,226 INFO L256 TraceCheckUtils]: 6: Hoare triple {73045#true} call _BLAST_init(); {73045#true} is VALID [2018-11-23 10:51:03,226 INFO L273 TraceCheckUtils]: 7: Hoare triple {73045#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,227 INFO L273 TraceCheckUtils]: 8: Hoare triple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,227 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {73045#true} #1063#return; {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,228 INFO L273 TraceCheckUtils]: 10: Hoare triple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,228 INFO L273 TraceCheckUtils]: 11: Hoare triple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,229 INFO L256 TraceCheckUtils]: 12: Hoare triple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call stub_driver_init(); {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,229 INFO L273 TraceCheckUtils]: 13: Hoare triple {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {73090#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,230 INFO L273 TraceCheckUtils]: 14: Hoare triple {73090#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {73090#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,230 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {73090#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {73071#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #1065#return; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,231 INFO L273 TraceCheckUtils]: 16: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,232 INFO L273 TraceCheckUtils]: 17: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,232 INFO L273 TraceCheckUtils]: 18: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,233 INFO L273 TraceCheckUtils]: 19: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,234 INFO L273 TraceCheckUtils]: 20: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 3bv32 == ~tmp_ndt_4~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,235 INFO L256 TraceCheckUtils]: 21: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,236 INFO L273 TraceCheckUtils]: 22: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~DeviceObject__DeviceExtension~0 := #t~nondet12;havoc #t~nondet12;~Irp__Tail__Overlay__CurrentStackLocation~0 := #t~nondet13;havoc #t~nondet13;havoc ~Irp__IoStatus__Information~1;havoc ~Irp__IoStatus__Status~1;~Irp__CurrentLocation~0 := #t~nondet14;havoc #t~nondet14;~disketteExtension__IsRemoved~0 := #t~nondet15;havoc #t~nondet15;~disketteExtension__IsStarted~0 := #t~nondet16;havoc #t~nondet16;~disketteExtension__TargetObject~0 := #t~nondet17;havoc #t~nondet17;havoc ~disketteExtension__HoldNewRequests~0;~disketteExtension__FloppyThread~0 := #t~nondet18;havoc #t~nondet18;~disketteExtension__InterfaceString__Buffer~0 := #t~nondet19;havoc #t~nondet19;~disketteExtension__InterfaceString~0 := #t~nondet20;havoc #t~nondet20;~disketteExtension__ArcName__Length~0 := #t~nondet21;havoc #t~nondet21;~disketteExtension__ArcName~0 := #t~nondet22;havoc #t~nondet22;~irpSp__MinorFunction~0 := #t~nondet23;havoc #t~nondet23;~IoGetConfigurationInformation__FloppyCount~0 := #t~nondet24;havoc #t~nondet24;havoc ~irpSp~0;havoc ~disketteExtension~0;havoc ~ntStatus~0;~doneEvent~0 := #t~nondet25;havoc #t~nondet25;havoc ~irpSp___0~0;havoc ~nextIrpSp~0;havoc ~nextIrpSp__Control~0;havoc ~irpSp___1~0;havoc ~irpSp__Context~0;havoc ~irpSp__Control~0;havoc ~__cil_tmp29~0;havoc ~__cil_tmp30~0;~ntStatus~0 := 0bv32;#t~post26 := ~PagingReferenceCount~0;~PagingReferenceCount~0 := ~bvadd32(1bv32, #t~post26);havoc #t~post26; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,237 INFO L273 TraceCheckUtils]: 23: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 1bv32 == ~PagingReferenceCount~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,237 INFO L273 TraceCheckUtils]: 24: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,238 INFO L273 TraceCheckUtils]: 25: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,239 INFO L273 TraceCheckUtils]: 26: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~irpSp__MinorFunction~0); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,239 INFO L273 TraceCheckUtils]: 27: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 5bv32 == ~irpSp__MinorFunction~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,240 INFO L273 TraceCheckUtils]: 28: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 5bv32 == ~irpSp__MinorFunction~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,241 INFO L273 TraceCheckUtils]: 29: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,242 INFO L256 TraceCheckUtils]: 30: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,243 INFO L273 TraceCheckUtils]: 31: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~Irp := #in~Irp;~DisketteExtension := #in~DisketteExtension;havoc ~status~0;~threadHandle~0 := #t~nondet0;havoc #t~nondet0;~DisketteExtension__PoweringDown~0 := #t~nondet1;havoc #t~nondet1;~DisketteExtension__ThreadReferenceCount~0 := #t~nondet2;havoc #t~nondet2;~DisketteExtension__FloppyThread~0 := #t~nondet3;havoc #t~nondet3;havoc ~Irp__IoStatus__Status~0;havoc ~Irp__IoStatus__Information~0;havoc ~Irp__Tail__Overlay__CurrentStackLocation__Control~0;~ObjAttributes~0 := #t~nondet4;havoc #t~nondet4;havoc ~__cil_tmp12~0;havoc ~__cil_tmp13~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,243 INFO L273 TraceCheckUtils]: 32: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(1bv32 == ~DisketteExtension__PoweringDown~0);#t~post5 := ~DisketteExtension__ThreadReferenceCount~0;~DisketteExtension__ThreadReferenceCount~0 := ~bvadd32(1bv32, #t~post5);havoc #t~post5; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,244 INFO L273 TraceCheckUtils]: 33: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~DisketteExtension__ThreadReferenceCount~0); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,245 INFO L273 TraceCheckUtils]: 34: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 0bv32 == ~pended~0;~pended~0 := 1bv32; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,246 INFO L273 TraceCheckUtils]: 35: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #res := 259bv32; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,246 INFO L273 TraceCheckUtils]: 36: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,247 INFO L268 TraceCheckUtils]: 37: Hoare quadruple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #1023#return; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,248 INFO L273 TraceCheckUtils]: 38: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,249 INFO L273 TraceCheckUtils]: 39: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 259bv32 == ~__cil_tmp29~0; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,250 INFO L256 TraceCheckUtils]: 40: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call #t~ret32 := KeWaitForSingleObject(~disketteExtension__FloppyThread~0, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,251 INFO L273 TraceCheckUtils]: 41: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-23 10:51:03,251 INFO L273 TraceCheckUtils]: 42: Hoare triple {73097#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume ~s~0 == ~MPR3~0; {73046#false} is VALID [2018-11-23 10:51:03,252 INFO L273 TraceCheckUtils]: 43: Hoare triple {73046#false} assume !(1bv32 == ~setEventCalled~0); {73046#false} is VALID [2018-11-23 10:51:03,252 INFO L273 TraceCheckUtils]: 44: Hoare triple {73046#false} assume !(1bv32 == ~customIrp~0); {73046#false} is VALID [2018-11-23 10:51:03,252 INFO L273 TraceCheckUtils]: 45: Hoare triple {73046#false} assume ~s~0 == ~MPR3~0; {73046#false} is VALID [2018-11-23 10:51:03,252 INFO L256 TraceCheckUtils]: 46: Hoare triple {73046#false} call errorFn(); {73046#false} is VALID [2018-11-23 10:51:03,253 INFO L273 TraceCheckUtils]: 47: Hoare triple {73046#false} assume !false; {73046#false} is VALID [2018-11-23 10:51:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:51:03,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:51:03,260 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:51:03,260 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:51:03,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-11-23 10:51:03,261 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:51:03,261 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 10:51:03,330 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:51:03,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:51:03,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:51:03,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:51:03,331 INFO L87 Difference]: Start difference. First operand 907 states and 1219 transitions. Second operand 5 states. [2018-11-23 10:51:10,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:10,089 INFO L93 Difference]: Finished difference Result 1491 states and 1966 transitions. [2018-11-23 10:51:10,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:51:10,089 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-11-23 10:51:10,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:51:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:51:10,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 888 transitions. [2018-11-23 10:51:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 10:51:10,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 888 transitions. [2018-11-23 10:51:10,101 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 888 transitions. [2018-11-23 10:51:11,371 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 888 edges. 888 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:51:11,422 INFO L225 Difference]: With dead ends: 1491 [2018-11-23 10:51:11,422 INFO L226 Difference]: Without dead ends: 943 [2018-11-23 10:51:11,424 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:51:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2018-11-23 10:51:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 898. [2018-11-23 10:51:16,464 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:51:16,464 INFO L82 GeneralOperation]: Start isEquivalent. First operand 943 states. Second operand 898 states. [2018-11-23 10:51:16,464 INFO L74 IsIncluded]: Start isIncluded. First operand 943 states. Second operand 898 states. [2018-11-23 10:51:16,464 INFO L87 Difference]: Start difference. First operand 943 states. Second operand 898 states. [2018-11-23 10:51:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:16,500 INFO L93 Difference]: Finished difference Result 943 states and 1249 transitions. [2018-11-23 10:51:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1249 transitions. [2018-11-23 10:51:16,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:16,502 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:16,502 INFO L74 IsIncluded]: Start isIncluded. First operand 898 states. Second operand 943 states. [2018-11-23 10:51:16,503 INFO L87 Difference]: Start difference. First operand 898 states. Second operand 943 states. [2018-11-23 10:51:16,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:16,536 INFO L93 Difference]: Finished difference Result 943 states and 1249 transitions. [2018-11-23 10:51:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 943 states and 1249 transitions. [2018-11-23 10:51:16,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:16,538 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:16,538 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:51:16,538 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:51:16,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2018-11-23 10:51:16,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1198 transitions. [2018-11-23 10:51:16,578 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1198 transitions. Word has length 48 [2018-11-23 10:51:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:51:16,579 INFO L480 AbstractCegarLoop]: Abstraction has 898 states and 1198 transitions. [2018-11-23 10:51:16,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:51:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1198 transitions. [2018-11-23 10:51:16,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 10:51:16,580 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:51:16,580 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:51:16,580 INFO L423 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:51:16,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:51:16,580 INFO L82 PathProgramCache]: Analyzing trace with hash 789546877, now seen corresponding path program 1 times [2018-11-23 10:51:16,581 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:51:16,581 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:51:16,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:51:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:16,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:51:16,843 INFO L256 TraceCheckUtils]: 0: Hoare triple {78332#true} call ULTIMATE.init(); {78332#true} is VALID [2018-11-23 10:51:16,843 INFO L273 TraceCheckUtils]: 1: Hoare triple {78332#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {78332#true} is VALID [2018-11-23 10:51:16,843 INFO L273 TraceCheckUtils]: 2: Hoare triple {78332#true} assume true; {78332#true} is VALID [2018-11-23 10:51:16,843 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {78332#true} {78332#true} #1155#return; {78332#true} is VALID [2018-11-23 10:51:16,844 INFO L256 TraceCheckUtils]: 4: Hoare triple {78332#true} call #t~ret166 := main(); {78332#true} is VALID [2018-11-23 10:51:16,844 INFO L273 TraceCheckUtils]: 5: Hoare triple {78332#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {78332#true} is VALID [2018-11-23 10:51:16,844 INFO L256 TraceCheckUtils]: 6: Hoare triple {78332#true} call _BLAST_init(); {78332#true} is VALID [2018-11-23 10:51:16,844 INFO L273 TraceCheckUtils]: 7: Hoare triple {78332#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L273 TraceCheckUtils]: 8: Hoare triple {78332#true} assume true; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {78332#true} {78332#true} #1063#return; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L273 TraceCheckUtils]: 10: Hoare triple {78332#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L273 TraceCheckUtils]: 11: Hoare triple {78332#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L256 TraceCheckUtils]: 12: Hoare triple {78332#true} call stub_driver_init(); {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L273 TraceCheckUtils]: 13: Hoare triple {78332#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {78332#true} is VALID [2018-11-23 10:51:16,845 INFO L273 TraceCheckUtils]: 14: Hoare triple {78332#true} assume true; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {78332#true} {78332#true} #1065#return; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L273 TraceCheckUtils]: 16: Hoare triple {78332#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L273 TraceCheckUtils]: 17: Hoare triple {78332#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L273 TraceCheckUtils]: 18: Hoare triple {78332#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L273 TraceCheckUtils]: 19: Hoare triple {78332#true} assume 2bv32 == ~tmp_ndt_3~0; {78332#true} is VALID [2018-11-23 10:51:16,846 INFO L256 TraceCheckUtils]: 20: Hoare triple {78332#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {78332#true} is VALID [2018-11-23 10:51:16,847 INFO L273 TraceCheckUtils]: 21: Hoare triple {78332#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {78332#true} is VALID [2018-11-23 10:51:16,847 INFO L273 TraceCheckUtils]: 22: Hoare triple {78332#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {78332#true} is VALID [2018-11-23 10:51:16,847 INFO L273 TraceCheckUtils]: 23: Hoare triple {78332#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {78332#true} is VALID [2018-11-23 10:51:16,847 INFO L273 TraceCheckUtils]: 24: Hoare triple {78332#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {78332#true} is VALID [2018-11-23 10:51:16,847 INFO L273 TraceCheckUtils]: 25: Hoare triple {78332#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {78332#true} is VALID [2018-11-23 10:51:16,865 INFO L273 TraceCheckUtils]: 26: Hoare triple {78332#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~ntStatus~3 := 3221225485bv32; {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,874 INFO L273 TraceCheckUtils]: 27: Hoare triple {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,887 INFO L273 TraceCheckUtils]: 28: Hoare triple {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} assume 259bv32 != ~__cil_tmp91~0;~Irp__IoStatus__Status___0~0 := ~ntStatus~3;~myStatus~0 := ~ntStatus~3; {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,887 INFO L256 TraceCheckUtils]: 29: Hoare triple {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} call IofCompleteRequest(~Irp, 0bv32); {78332#true} is VALID [2018-11-23 10:51:16,887 INFO L273 TraceCheckUtils]: 30: Hoare triple {78332#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {78332#true} is VALID [2018-11-23 10:51:16,888 INFO L273 TraceCheckUtils]: 31: Hoare triple {78332#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {78332#true} is VALID [2018-11-23 10:51:16,888 INFO L273 TraceCheckUtils]: 32: Hoare triple {78332#true} assume true; {78332#true} is VALID [2018-11-23 10:51:16,897 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {78332#true} {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} #1143#return; {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,913 INFO L273 TraceCheckUtils]: 34: Hoare triple {78415#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} #res := ~ntStatus~3; {78440#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} is VALID [2018-11-23 10:51:16,922 INFO L273 TraceCheckUtils]: 35: Hoare triple {78440#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} assume true; {78440#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} is VALID [2018-11-23 10:51:16,938 INFO L268 TraceCheckUtils]: 36: Hoare quadruple {78440#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} {78332#true} #1071#return; {78447#(= (bvadd |main_#t~ret95| (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,947 INFO L273 TraceCheckUtils]: 37: Hoare triple {78447#(= (bvadd |main_#t~ret95| (_ bv1073741811 32)) (_ bv0 32))} ~status~1 := #t~ret95;havoc #t~ret95; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,958 INFO L273 TraceCheckUtils]: 38: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,958 INFO L273 TraceCheckUtils]: 39: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,960 INFO L273 TraceCheckUtils]: 40: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,960 INFO L273 TraceCheckUtils]: 41: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,962 INFO L273 TraceCheckUtils]: 42: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,962 INFO L273 TraceCheckUtils]: 43: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,964 INFO L273 TraceCheckUtils]: 44: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,964 INFO L273 TraceCheckUtils]: 45: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,966 INFO L273 TraceCheckUtils]: 46: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-23 10:51:16,966 INFO L273 TraceCheckUtils]: 47: Hoare triple {78451#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {78333#false} is VALID [2018-11-23 10:51:16,966 INFO L256 TraceCheckUtils]: 48: Hoare triple {78333#false} call errorFn(); {78333#false} is VALID [2018-11-23 10:51:16,966 INFO L273 TraceCheckUtils]: 49: Hoare triple {78333#false} assume !false; {78333#false} is VALID [2018-11-23 10:51:16,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:51:16,968 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:51:16,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:51:16,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 10:51:16,971 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-11-23 10:51:16,971 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:51:16,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 10:51:17,032 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:51:17,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 10:51:17,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 10:51:17,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:51:17,033 INFO L87 Difference]: Start difference. First operand 898 states and 1198 transitions. Second operand 6 states. [2018-11-23 10:51:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:22,824 INFO L93 Difference]: Finished difference Result 918 states and 1218 transitions. [2018-11-23 10:51:22,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 10:51:22,824 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-11-23 10:51:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:51:22,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 10:51:22,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2018-11-23 10:51:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 10:51:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 494 transitions. [2018-11-23 10:51:22,834 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 494 transitions. [2018-11-23 10:51:23,381 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 494 edges. 494 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:51:23,425 INFO L225 Difference]: With dead ends: 918 [2018-11-23 10:51:23,425 INFO L226 Difference]: Without dead ends: 898 [2018-11-23 10:51:23,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 10:51:23,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2018-11-23 10:51:28,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2018-11-23 10:51:28,676 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 10:51:28,676 INFO L82 GeneralOperation]: Start isEquivalent. First operand 898 states. Second operand 898 states. [2018-11-23 10:51:28,676 INFO L74 IsIncluded]: Start isIncluded. First operand 898 states. Second operand 898 states. [2018-11-23 10:51:28,676 INFO L87 Difference]: Start difference. First operand 898 states. Second operand 898 states. [2018-11-23 10:51:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:28,724 INFO L93 Difference]: Finished difference Result 898 states and 1189 transitions. [2018-11-23 10:51:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1189 transitions. [2018-11-23 10:51:28,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:28,727 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:28,727 INFO L74 IsIncluded]: Start isIncluded. First operand 898 states. Second operand 898 states. [2018-11-23 10:51:28,727 INFO L87 Difference]: Start difference. First operand 898 states. Second operand 898 states. [2018-11-23 10:51:28,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:51:28,764 INFO L93 Difference]: Finished difference Result 898 states and 1189 transitions. [2018-11-23 10:51:28,764 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1189 transitions. [2018-11-23 10:51:28,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:51:28,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 10:51:28,766 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 10:51:28,766 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 10:51:28,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2018-11-23 10:51:28,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1189 transitions. [2018-11-23 10:51:28,806 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1189 transitions. Word has length 50 [2018-11-23 10:51:28,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:51:28,807 INFO L480 AbstractCegarLoop]: Abstraction has 898 states and 1189 transitions. [2018-11-23 10:51:28,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 10:51:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1189 transitions. [2018-11-23 10:51:28,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-23 10:51:28,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:51:28,808 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:51:28,808 INFO L423 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:51:28,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:51:28,808 INFO L82 PathProgramCache]: Analyzing trace with hash 640091009, now seen corresponding path program 1 times [2018-11-23 10:51:28,808 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 10:51:28,808 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 10:51:28,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:51:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:51:28,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:51:29,129 INFO L256 TraceCheckUtils]: 0: Hoare triple {82759#true} call ULTIMATE.init(); {82759#true} is VALID [2018-11-23 10:51:29,129 INFO L273 TraceCheckUtils]: 1: Hoare triple {82759#true} ~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~PagingReferenceCount~0 := 0bv32;~PagingMutex~0 := 0bv32; {82759#true} is VALID [2018-11-23 10:51:29,130 INFO L273 TraceCheckUtils]: 2: Hoare triple {82759#true} assume true; {82759#true} is VALID [2018-11-23 10:51:29,130 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {82759#true} {82759#true} #1155#return; {82759#true} is VALID [2018-11-23 10:51:29,130 INFO L256 TraceCheckUtils]: 4: Hoare triple {82759#true} call #t~ret166 := main(); {82759#true} is VALID [2018-11-23 10:51:29,131 INFO L273 TraceCheckUtils]: 5: Hoare triple {82759#true} havoc ~status~1;~irp~1 := #t~nondet86;havoc #t~nondet86;havoc ~pirp~0;havoc ~pirp__IoStatus__Status~0;~irp_choice~0 := #t~nondet87;havoc #t~nondet87;~devobj~0 := #t~nondet88;havoc #t~nondet88;havoc ~__cil_tmp8~0;~FloppyThread~0 := 0bv32;~KernelMode~0 := 0bv32;~Suspended~0 := 0bv32;~Executive~0 := 0bv32;~DiskController~0 := 0bv32;~FloppyDiskPeripheral~0 := 0bv32;~FlConfigCallBack~0 := 0bv32;~MaximumInterfaceType~0 := 0bv32;~MOUNTDEV_MOUNTED_DEVICE_GUID~0 := 0bv32;~myStatus~0 := 0bv32;~s~0 := 0bv32;~UNLOADED~0 := 0bv32;~NP~0 := 0bv32;~DC~0 := 0bv32;~SKIP1~0 := 0bv32;~SKIP2~0 := 0bv32;~MPR1~0 := 0bv32;~MPR3~0 := 0bv32;~IPC~0 := 0bv32;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32;~status~1 := 0bv32;~pirp~0 := ~irp~1; {82759#true} is VALID [2018-11-23 10:51:29,131 INFO L256 TraceCheckUtils]: 6: Hoare triple {82759#true} call _BLAST_init(); {82759#true} is VALID [2018-11-23 10:51:29,131 INFO L273 TraceCheckUtils]: 7: Hoare triple {82759#true} ~UNLOADED~0 := 0bv32;~NP~0 := 1bv32;~DC~0 := 2bv32;~SKIP1~0 := 3bv32;~SKIP2~0 := 4bv32;~MPR1~0 := 5bv32;~MPR3~0 := 6bv32;~IPC~0 := 7bv32;~s~0 := ~UNLOADED~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L273 TraceCheckUtils]: 8: Hoare triple {82759#true} assume true; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {82759#true} {82759#true} #1063#return; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L273 TraceCheckUtils]: 10: Hoare triple {82759#true} assume ~bvsge32(~status~1, 0bv32);~s~0 := ~NP~0;~customIrp~0 := 0bv32;~setEventCalled~0 := ~customIrp~0;~lowerDriverReturn~0 := ~setEventCalled~0;~compRegistered~0 := ~lowerDriverReturn~0;~pended~0 := ~compRegistered~0;~pirp__IoStatus__Status~0 := 0bv32;~myStatus~0 := 0bv32; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L273 TraceCheckUtils]: 11: Hoare triple {82759#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L256 TraceCheckUtils]: 12: Hoare triple {82759#true} call stub_driver_init(); {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L273 TraceCheckUtils]: 13: Hoare triple {82759#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {82759#true} is VALID [2018-11-23 10:51:29,132 INFO L273 TraceCheckUtils]: 14: Hoare triple {82759#true} assume true; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {82759#true} {82759#true} #1065#return; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 16: Hoare triple {82759#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 17: Hoare triple {82759#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 18: Hoare triple {82759#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 19: Hoare triple {82759#true} assume 2bv32 == ~tmp_ndt_3~0; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L256 TraceCheckUtils]: 20: Hoare triple {82759#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 21: Hoare triple {82759#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;~disketteExtension__HoldNewRequests~2 := #t~nondet112;havoc #t~nondet112;~disketteExtension__IsRemoved~1 := #t~nondet113;havoc #t~nondet113;havoc ~Irp__IoStatus__Information~3;~disketteExtension__IsStarted~2 := #t~nondet114;havoc #t~nondet114;~Irp__CurrentLocation~1 := #t~nondet115;havoc #t~nondet115;~Irp__Tail__Overlay__CurrentStackLocation~2 := #t~nondet116;havoc #t~nondet116;~disketteExtension__TargetObject~2 := #t~nondet117;havoc #t~nondet117;~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0 := #t~nondet118;havoc #t~nondet118;~sizeof__MOUNTDEV_NAME~0 := #t~nondet119;havoc #t~nondet119;~Irp__AssociatedIrp__SystemBuffer~0 := #t~nondet120;havoc #t~nondet120;havoc ~mountName__NameLength~0;~disketteExtension__DeviceName__Length~0 := #t~nondet121;havoc #t~nondet121;~sizeof__USHORT~0 := #t~nondet122;havoc #t~nondet122;~disketteExtension__InterfaceString__Buffer~1 := #t~nondet123;havoc #t~nondet123;havoc ~uniqueId__UniqueIdLength~0;~disketteExtension__InterfaceString__Length~0 := #t~nondet124;havoc #t~nondet124;~sizeof__MOUNTDEV_UNIQUE_ID~0 := #t~nondet125;havoc #t~nondet125;~irpSp__Parameters__DeviceIoControl__InputBufferLength~0 := #t~nondet126;havoc #t~nondet126;~sizeof__FORMAT_PARAMETERS~0 := #t~nondet127;havoc #t~nondet127;~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 := #t~nondet128;havoc #t~nondet128;~sizeof__FORMAT_EX_PARAMETERS~0 := #t~nondet129;havoc #t~nondet129;~formatExParameters__FormatGapLength~0 := #t~nondet130;havoc #t~nondet130;~formatExParameters__SectorsPerTrack~0 := #t~nondet131;havoc #t~nondet131;~sizeof__DISK_GEOMETRY~0 := #t~nondet132;havoc #t~nondet132;havoc ~Irp__IoStatus__Status___0~0;~disketteExtension~2 := #t~nondet133;havoc #t~nondet133;havoc ~ntStatus~3;havoc ~outputBufferLength~0;~lowestDriveMediaType~0 := #t~nondet134;havoc #t~nondet134;~highestDriveMediaType~0 := #t~nondet135;havoc #t~nondet135;~formatExParametersSize~0 := #t~nondet136;havoc #t~nondet136;havoc ~formatExParameters~0;havoc ~tmp~0;havoc ~mountName~0;havoc ~uniqueId~0;havoc ~tmp___0~0;havoc ~__cil_tmp39~0;havoc ~__cil_tmp40~0;~__cil_tmp41~0 := #t~nondet137;havoc #t~nondet137;havoc ~__cil_tmp42~1;havoc ~__cil_tmp43~1;~__cil_tmp44~1 := #t~nondet138;havoc #t~nondet138;~__cil_tmp45~1 := #t~nondet139;havoc #t~nondet139;havoc ~__cil_tmp46~1;havoc ~__cil_tmp47~1;havoc ~__cil_tmp48~1;havoc ~__cil_tmp49~1;~__cil_tmp50~0 := #t~nondet140;havoc #t~nondet140;havoc ~__cil_tmp51~0;havoc ~__cil_tmp52~0;havoc ~__cil_tmp53~0;havoc ~__cil_tmp54~0;~__cil_tmp55~0 := #t~nondet141;havoc #t~nondet141;havoc ~__cil_tmp56~0;havoc ~__cil_tmp57~0;havoc ~__cil_tmp58~0;havoc ~__cil_tmp59~0;~__cil_tmp60~0 := #t~nondet142;havoc #t~nondet142;havoc ~__cil_tmp61~0;havoc ~__cil_tmp62~0;havoc ~__cil_tmp63~0;havoc ~__cil_tmp64~0;~__cil_tmp65~0 := #t~nondet143;havoc #t~nondet143;~__cil_tmp66~0 := #t~nondet144;havoc #t~nondet144;havoc ~__cil_tmp67~0;havoc ~__cil_tmp68~0;~__cil_tmp69~0 := #t~nondet145;havoc #t~nondet145;havoc ~__cil_tmp70~0;havoc ~__cil_tmp71~0;~__cil_tmp72~0 := #t~nondet146;havoc #t~nondet146;havoc ~__cil_tmp73~0;havoc ~__cil_tmp74~0;~__cil_tmp75~0 := #t~nondet147;havoc #t~nondet147;havoc ~__cil_tmp76~0;havoc ~__cil_tmp77~0;~__cil_tmp78~0 := #t~nondet148;havoc #t~nondet148;havoc ~__cil_tmp79~0;havoc ~__cil_tmp80~0;~__cil_tmp81~0 := #t~nondet149;havoc #t~nondet149;havoc ~__cil_tmp82~0;havoc ~__cil_tmp83~0;havoc ~__cil_tmp84~0;havoc ~__cil_tmp85~0;havoc ~__cil_tmp86~0;havoc ~__cil_tmp87~0;~__cil_tmp88~0 := #t~nondet150;havoc #t~nondet150;havoc ~__cil_tmp89~0;havoc ~__cil_tmp90~0;havoc ~__cil_tmp91~0; {82759#true} is VALID [2018-11-23 10:51:29,133 INFO L273 TraceCheckUtils]: 22: Hoare triple {82759#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 23: Hoare triple {82759#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 24: Hoare triple {82759#true} assume 0bv32 == ~disketteExtension__IsStarted~2; {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 25: Hoare triple {82759#true} assume ~s~0 == ~NP~0;~s~0 := ~SKIP1~0; {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 26: Hoare triple {82759#true} #t~post152 := ~Irp__CurrentLocation~1;~Irp__CurrentLocation~1 := ~bvadd32(1bv32, #t~post152);havoc #t~post152;#t~post153 := ~Irp__Tail__Overlay__CurrentStackLocation~2;~Irp__Tail__Overlay__CurrentStackLocation~2 := ~bvadd32(1bv32, #t~post153);havoc #t~post153; {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L256 TraceCheckUtils]: 27: Hoare triple {82759#true} call #t~ret154 := IofCallDriver(~disketteExtension__TargetObject~2, ~Irp); {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 28: Hoare triple {82759#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~returnVal2~0;havoc ~compRetStatus1~0;~lcontext~0 := #t~nondet103;havoc #t~nondet103;havoc ~__cil_tmp7~0; {82759#true} is VALID [2018-11-23 10:51:29,134 INFO L273 TraceCheckUtils]: 29: Hoare triple {82759#true} assume !(0bv32 != ~compRegistered~0); {82759#true} is VALID [2018-11-23 10:51:29,135 INFO L273 TraceCheckUtils]: 30: Hoare triple {82759#true} havoc ~tmp_ndt_10~0;~tmp_ndt_10~0 := #t~nondet105;havoc #t~nondet105; {82759#true} is VALID [2018-11-23 10:51:29,135 INFO L273 TraceCheckUtils]: 31: Hoare triple {82759#true} assume 0bv32 == ~tmp_ndt_10~0; {82759#true} is VALID [2018-11-23 10:51:29,135 INFO L273 TraceCheckUtils]: 32: Hoare triple {82759#true} ~returnVal2~0 := 0bv32; {82759#true} is VALID [2018-11-23 10:51:29,135 INFO L273 TraceCheckUtils]: 33: Hoare triple {82759#true} assume ~s~0 == ~NP~0;~s~0 := ~IPC~0;~lowerDriverReturn~0 := ~returnVal2~0; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,136 INFO L273 TraceCheckUtils]: 34: Hoare triple {82863#(= ~IPC~0 ~s~0)} #res := ~returnVal2~0; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,136 INFO L273 TraceCheckUtils]: 35: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume true; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,137 INFO L268 TraceCheckUtils]: 36: Hoare quadruple {82863#(= ~IPC~0 ~s~0)} {82759#true} #1133#return; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,137 INFO L273 TraceCheckUtils]: 37: Hoare triple {82863#(= ~IPC~0 ~s~0)} ~tmp~0 := #t~ret154;havoc #t~ret154;#res := ~tmp~0; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,137 INFO L273 TraceCheckUtils]: 38: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume true; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,138 INFO L268 TraceCheckUtils]: 39: Hoare quadruple {82863#(= ~IPC~0 ~s~0)} {82759#true} #1071#return; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,139 INFO L273 TraceCheckUtils]: 40: Hoare triple {82863#(= ~IPC~0 ~s~0)} ~status~1 := #t~ret95;havoc #t~ret95; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,139 INFO L273 TraceCheckUtils]: 41: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume !(1bv32 == ~pended~0); {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,140 INFO L273 TraceCheckUtils]: 42: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume !(1bv32 == ~pended~0); {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,140 INFO L273 TraceCheckUtils]: 43: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,141 INFO L273 TraceCheckUtils]: 44: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume 4294967295bv32 != ~status~1; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,141 INFO L273 TraceCheckUtils]: 45: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume ~s~0 != ~SKIP2~0; {82863#(= ~IPC~0 ~s~0)} is VALID [2018-11-23 10:51:29,142 INFO L273 TraceCheckUtils]: 46: Hoare triple {82863#(= ~IPC~0 ~s~0)} assume ~s~0 != ~IPC~0; {82760#false} is VALID [2018-11-23 10:51:29,142 INFO L273 TraceCheckUtils]: 47: Hoare triple {82760#false} assume ~s~0 != ~DC~0; {82760#false} is VALID [2018-11-23 10:51:29,142 INFO L256 TraceCheckUtils]: 48: Hoare triple {82760#false} call errorFn(); {82760#false} is VALID [2018-11-23 10:51:29,142 INFO L273 TraceCheckUtils]: 49: Hoare triple {82760#false} assume !false; {82760#false} is VALID [2018-11-23 10:51:29,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:51:29,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 10:51:29,148 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:51:29,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:51:29,148 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-11-23 10:51:29,149 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 10:51:29,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 10:51:29,203 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 10:51:29,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:51:29,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:51:29,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:51:29,204 INFO L87 Difference]: Start difference. First operand 898 states and 1189 transitions. Second operand 3 states.