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/AutomizerC.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 0.1.23-18e5b2d-m [2018-11-18 21:29:05,399 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 21:29:05,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 21:29:05,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 21:29:05,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 21:29:05,418 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 21:29:05,419 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 21:29:05,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 21:29:05,426 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 21:29:05,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 21:29:05,428 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 21:29:05,429 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 21:29:05,430 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 21:29:05,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 21:29:05,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 21:29:05,433 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 21:29:05,434 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 21:29:05,436 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 21:29:05,438 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 21:29:05,440 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 21:29:05,441 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 21:29:05,442 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 21:29:05,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 21:29:05,446 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 21:29:05,446 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 21:29:05,447 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 21:29:05,448 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 21:29:05,449 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 21:29:05,450 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 21:29:05,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 21:29:05,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 21:29:05,452 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 21:29:05,452 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 21:29:05,452 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 21:29:05,453 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 21:29:05,454 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 21:29:05,455 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 [2018-11-18 21:29:05,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 21:29:05,470 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 21:29:05,471 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 21:29:05,471 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 21:29:05,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 21:29:05,472 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 21:29:05,472 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 21:29:05,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 21:29:05,473 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 21:29:05,473 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 21:29:05,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 21:29:05,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 21:29:05,474 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 21:29:05,475 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 21:29:05,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 21:29:05,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 21:29:05,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 21:29:05,475 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 21:29:05,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 21:29:05,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 21:29:05,476 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 21:29:05,476 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 21:29:05,476 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 21:29:05,477 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 21:29:05,477 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 21:29:05,478 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 21:29:05,478 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 21:29:05,478 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 21:29:05,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 21:29:05,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 21:29:05,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 21:29:05,574 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 21:29:05,574 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 21:29:05,575 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-18 21:29:05,656 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24a6cb4b/73cd57a79c704c03ab427a8c5082904a/FLAG47352efb9 [2018-11-18 21:29:06,188 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 21:29:06,189 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-18 21:29:06,207 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24a6cb4b/73cd57a79c704c03ab427a8c5082904a/FLAG47352efb9 [2018-11-18 21:29:06,478 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24a6cb4b/73cd57a79c704c03ab427a8c5082904a [2018-11-18 21:29:06,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 21:29:06,492 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 21:29:06,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 21:29:06,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 21:29:06,497 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 21:29:06,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:29:06" (1/1) ... [2018-11-18 21:29:06,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9c81d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:06, skipping insertion in model container [2018-11-18 21:29:06,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:29:06" (1/1) ... [2018-11-18 21:29:06,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 21:29:06,597 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 21:29:07,163 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:29:07,169 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 21:29:07,348 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 21:29:07,475 INFO L195 MainTranslator]: Completed translation [2018-11-18 21:29:07,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07 WrapperNode [2018-11-18 21:29:07,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 21:29:07,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 21:29:07,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 21:29:07,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 21:29:07,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (1/1) ... [2018-11-18 21:29:07,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 21:29:07,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 21:29:07,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 21:29:07,610 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 21:29:07,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (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 [2018-11-18 21:29:07,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 21:29:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 21:29:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2018-11-18 21:29:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2018-11-18 21:29:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2018-11-18 21:29:07,700 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2018-11-18 21:29:07,701 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2018-11-18 21:29:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2018-11-18 21:29:07,704 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2018-11-18 21:29:07,705 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2018-11-18 21:29:07,706 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2018-11-18 21:29:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2018-11-18 21:29:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2018-11-18 21:29:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2018-11-18 21:29:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2018-11-18 21:29:07,707 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2018-11-18 21:29:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2018-11-18 21:29:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2018-11-18 21:29:07,710 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2018-11-18 21:29:07,711 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-11-18 21:29:07,712 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2018-11-18 21:29:07,713 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2018-11-18 21:29:07,714 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2018-11-18 21:29:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2018-11-18 21:29:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2018-11-18 21:29:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2018-11-18 21:29:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2018-11-18 21:29:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2018-11-18 21:29:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2018-11-18 21:29:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2018-11-18 21:29:07,717 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2018-11-18 21:29:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 21:29:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2018-11-18 21:29:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 21:29:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 21:29:08,183 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:08,184 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:08,329 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:08,329 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:08,376 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:08,376 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:09,547 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:09,547 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:09,911 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:09,912 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:10,539 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:10,540 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:10,562 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:10,563 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:10,576 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:10,577 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:10,783 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:10,783 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:10,873 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:10,874 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:11,360 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:11,360 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:11,403 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:11,403 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:11,430 WARN L687 $ProcedureCfgBuilder]: Two Gotos in a row! There was dead code [2018-11-18 21:29:11,430 WARN L652 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-11-18 21:29:11,631 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 21:29:11,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:29:11 BoogieIcfgContainer [2018-11-18 21:29:11,632 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 21:29:11,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 21:29:11,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 21:29:11,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 21:29:11,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:29:06" (1/3) ... [2018-11-18 21:29:11,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2a0a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:29:11, skipping insertion in model container [2018-11-18 21:29:11,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:29:07" (2/3) ... [2018-11-18 21:29:11,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d2a0a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:29:11, skipping insertion in model container [2018-11-18 21:29:11,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:29:11" (3/3) ... [2018-11-18 21:29:11,641 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy_simpl4_false-unreach-call_true-valid-memsafety_true-termination.cil.c [2018-11-18 21:29:11,652 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 21:29:11,662 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 21:29:11,681 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 21:29:11,719 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 21:29:11,720 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 21:29:11,720 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 21:29:11,720 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 21:29:11,720 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 21:29:11,720 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 21:29:11,721 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 21:29:11,721 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 21:29:11,721 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 21:29:11,755 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states. [2018-11-18 21:29:11,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 21:29:11,762 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:11,763 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 21:29:11,766 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:11,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:11,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1729519402, now seen corresponding path program 1 times [2018-11-18 21:29:11,776 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:11,777 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 [2018-11-18 21:29:11,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:11,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:12,086 INFO L256 TraceCheckUtils]: 0: Hoare triple {394#true} call ULTIMATE.init(); {394#true} is VALID [2018-11-18 21:29:12,090 INFO L273 TraceCheckUtils]: 1: Hoare triple {394#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; {394#true} is VALID [2018-11-18 21:29:12,090 INFO L273 TraceCheckUtils]: 2: Hoare triple {394#true} assume true; {394#true} is VALID [2018-11-18 21:29:12,090 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {394#true} {394#true} #1158#return; {394#true} is VALID [2018-11-18 21:29:12,091 INFO L256 TraceCheckUtils]: 4: Hoare triple {394#true} call #t~ret166 := main(); {394#true} is VALID [2018-11-18 21:29:12,091 INFO L273 TraceCheckUtils]: 5: Hoare triple {394#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; {394#true} is VALID [2018-11-18 21:29:12,092 INFO L256 TraceCheckUtils]: 6: Hoare triple {394#true} call _BLAST_init(); {394#true} is VALID [2018-11-18 21:29:12,093 INFO L273 TraceCheckUtils]: 7: Hoare triple {394#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; {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,095 INFO L273 TraceCheckUtils]: 8: Hoare triple {420#(= ~UNLOADED~0 ~s~0)} assume true; {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,099 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {420#(= ~UNLOADED~0 ~s~0)} {394#true} #1066#return; {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,112 INFO L273 TraceCheckUtils]: 10: Hoare triple {420#(= ~UNLOADED~0 ~s~0)} assume !~bvsge32(~status~1, 0bv32); {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,128 INFO L273 TraceCheckUtils]: 11: Hoare triple {420#(= ~UNLOADED~0 ~s~0)} assume !(1bv32 == ~pended~0); {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,142 INFO L273 TraceCheckUtils]: 12: Hoare triple {420#(= ~UNLOADED~0 ~s~0)} assume !(1bv32 == ~pended~0); {420#(= ~UNLOADED~0 ~s~0)} is VALID [2018-11-18 21:29:12,156 INFO L273 TraceCheckUtils]: 13: Hoare triple {420#(= ~UNLOADED~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {395#false} is VALID [2018-11-18 21:29:12,157 INFO L273 TraceCheckUtils]: 14: Hoare triple {395#false} assume 4294967295bv32 != ~status~1; {395#false} is VALID [2018-11-18 21:29:12,157 INFO L273 TraceCheckUtils]: 15: Hoare triple {395#false} assume !(~s~0 != ~SKIP2~0); {395#false} is VALID [2018-11-18 21:29:12,157 INFO L273 TraceCheckUtils]: 16: Hoare triple {395#false} assume 1bv32 == ~pended~0; {395#false} is VALID [2018-11-18 21:29:12,158 INFO L273 TraceCheckUtils]: 17: Hoare triple {395#false} assume 259bv32 != ~status~1; {395#false} is VALID [2018-11-18 21:29:12,158 INFO L256 TraceCheckUtils]: 18: Hoare triple {395#false} call errorFn(); {395#false} is VALID [2018-11-18 21:29:12,158 INFO L273 TraceCheckUtils]: 19: Hoare triple {395#false} assume !false; {395#false} is VALID [2018-11-18 21:29:12,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:12,169 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:12,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:12,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:12,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-18 21:29:12,190 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:12,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:12,262 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:12,262 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:12,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:12,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:12,273 INFO L87 Difference]: Start difference. First operand 391 states. Second operand 3 states. [2018-11-18 21:29:14,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:14,948 INFO L93 Difference]: Finished difference Result 637 states and 928 transitions. [2018-11-18 21:29:14,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:14,949 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-11-18 21:29:14,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:14,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:15,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2018-11-18 21:29:15,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 928 transitions. [2018-11-18 21:29:15,027 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 928 transitions. [2018-11-18 21:29:16,428 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 928 edges. 928 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:16,498 INFO L225 Difference]: With dead ends: 637 [2018-11-18 21:29:16,499 INFO L226 Difference]: Without dead ends: 383 [2018-11-18 21:29:16,507 INFO L604 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 [2018-11-18 21:29:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-11-18 21:29:17,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 383. [2018-11-18 21:29:17,135 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:17,135 INFO L82 GeneralOperation]: Start isEquivalent. First operand 383 states. Second operand 383 states. [2018-11-18 21:29:17,136 INFO L74 IsIncluded]: Start isIncluded. First operand 383 states. Second operand 383 states. [2018-11-18 21:29:17,136 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 383 states. [2018-11-18 21:29:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:17,167 INFO L93 Difference]: Finished difference Result 383 states and 527 transitions. [2018-11-18 21:29:17,167 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 527 transitions. [2018-11-18 21:29:17,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:17,174 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:17,175 INFO L74 IsIncluded]: Start isIncluded. First operand 383 states. Second operand 383 states. [2018-11-18 21:29:17,175 INFO L87 Difference]: Start difference. First operand 383 states. Second operand 383 states. [2018-11-18 21:29:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:17,199 INFO L93 Difference]: Finished difference Result 383 states and 527 transitions. [2018-11-18 21:29:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 527 transitions. [2018-11-18 21:29:17,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:17,203 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:17,203 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:17,203 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2018-11-18 21:29:17,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 527 transitions. [2018-11-18 21:29:17,230 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 527 transitions. Word has length 20 [2018-11-18 21:29:17,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:17,231 INFO L480 AbstractCegarLoop]: Abstraction has 383 states and 527 transitions. [2018-11-18 21:29:17,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:17,231 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 527 transitions. [2018-11-18 21:29:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 21:29:17,232 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:17,232 INFO L375 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] [2018-11-18 21:29:17,233 INFO L423 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:17,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:17,233 INFO L82 PathProgramCache]: Analyzing trace with hash 821979631, now seen corresponding path program 1 times [2018-11-18 21:29:17,234 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:17,234 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 [2018-11-18 21:29:17,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:17,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:17,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:17,583 INFO L256 TraceCheckUtils]: 0: Hoare triple {2609#true} call ULTIMATE.init(); {2609#true} is VALID [2018-11-18 21:29:17,584 INFO L273 TraceCheckUtils]: 1: Hoare triple {2609#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; {2609#true} is VALID [2018-11-18 21:29:17,584 INFO L273 TraceCheckUtils]: 2: Hoare triple {2609#true} assume true; {2609#true} is VALID [2018-11-18 21:29:17,584 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2609#true} {2609#true} #1158#return; {2609#true} is VALID [2018-11-18 21:29:17,585 INFO L256 TraceCheckUtils]: 4: Hoare triple {2609#true} call #t~ret166 := main(); {2609#true} is VALID [2018-11-18 21:29:17,585 INFO L273 TraceCheckUtils]: 5: Hoare triple {2609#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; {2609#true} is VALID [2018-11-18 21:29:17,585 INFO L256 TraceCheckUtils]: 6: Hoare triple {2609#true} call _BLAST_init(); {2609#true} is VALID [2018-11-18 21:29:17,586 INFO L273 TraceCheckUtils]: 7: Hoare triple {2609#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; {2609#true} is VALID [2018-11-18 21:29:17,586 INFO L273 TraceCheckUtils]: 8: Hoare triple {2609#true} assume true; {2609#true} is VALID [2018-11-18 21:29:17,586 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {2609#true} {2609#true} #1066#return; {2609#true} is VALID [2018-11-18 21:29:17,587 INFO L273 TraceCheckUtils]: 10: Hoare triple {2609#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; {2609#true} is VALID [2018-11-18 21:29:17,587 INFO L273 TraceCheckUtils]: 11: Hoare triple {2609#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {2609#true} is VALID [2018-11-18 21:29:17,587 INFO L256 TraceCheckUtils]: 12: Hoare triple {2609#true} call stub_driver_init(); {2609#true} is VALID [2018-11-18 21:29:17,600 INFO L273 TraceCheckUtils]: 13: Hoare triple {2609#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,614 INFO L273 TraceCheckUtils]: 14: Hoare triple {2653#(= ~NP~0 ~s~0)} assume true; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,626 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {2653#(= ~NP~0 ~s~0)} {2609#true} #1068#return; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,640 INFO L273 TraceCheckUtils]: 16: Hoare triple {2653#(= ~NP~0 ~s~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,651 INFO L273 TraceCheckUtils]: 17: Hoare triple {2653#(= ~NP~0 ~s~0)} assume 0bv32 == ~tmp_ndt_1~0; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,661 INFO L256 TraceCheckUtils]: 18: Hoare triple {2653#(= ~NP~0 ~s~0)} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,674 INFO L273 TraceCheckUtils]: 19: Hoare triple {2653#(= ~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; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,686 INFO L256 TraceCheckUtils]: 20: Hoare triple {2653#(= ~NP~0 ~s~0)} call IofCompleteRequest(~Irp, 0bv32); {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,699 INFO L273 TraceCheckUtils]: 21: Hoare triple {2653#(= ~NP~0 ~s~0)} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {2653#(= ~NP~0 ~s~0)} is VALID [2018-11-18 21:29:17,712 INFO L273 TraceCheckUtils]: 22: Hoare triple {2653#(= ~NP~0 ~s~0)} assume !(~s~0 == ~NP~0); {2610#false} is VALID [2018-11-18 21:29:17,712 INFO L256 TraceCheckUtils]: 23: Hoare triple {2610#false} call errorFn(); {2610#false} is VALID [2018-11-18 21:29:17,713 INFO L273 TraceCheckUtils]: 24: Hoare triple {2610#false} assume !false; {2610#false} is VALID [2018-11-18 21:29:17,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:17,715 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:17,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:17,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:17,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 21:29:17,731 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:17,731 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:18,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:18,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:18,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:18,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:18,060 INFO L87 Difference]: Start difference. First operand 383 states and 527 transitions. Second operand 3 states. [2018-11-18 21:29:20,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:20,842 INFO L93 Difference]: Finished difference Result 708 states and 962 transitions. [2018-11-18 21:29:20,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:20,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 21:29:20,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:20,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:20,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 962 transitions. [2018-11-18 21:29:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:20,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 962 transitions. [2018-11-18 21:29:20,882 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 962 transitions. [2018-11-18 21:29:22,379 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 962 edges. 962 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:22,412 INFO L225 Difference]: With dead ends: 708 [2018-11-18 21:29:22,412 INFO L226 Difference]: Without dead ends: 542 [2018-11-18 21:29:22,414 INFO L604 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 [2018-11-18 21:29:22,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2018-11-18 21:29:22,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 523. [2018-11-18 21:29:22,762 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:22,762 INFO L82 GeneralOperation]: Start isEquivalent. First operand 542 states. Second operand 523 states. [2018-11-18 21:29:22,763 INFO L74 IsIncluded]: Start isIncluded. First operand 542 states. Second operand 523 states. [2018-11-18 21:29:22,763 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 523 states. [2018-11-18 21:29:22,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:22,798 INFO L93 Difference]: Finished difference Result 542 states and 735 transitions. [2018-11-18 21:29:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 735 transitions. [2018-11-18 21:29:22,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:22,802 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:22,802 INFO L74 IsIncluded]: Start isIncluded. First operand 523 states. Second operand 542 states. [2018-11-18 21:29:22,802 INFO L87 Difference]: Start difference. First operand 523 states. Second operand 542 states. [2018-11-18 21:29:22,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:22,832 INFO L93 Difference]: Finished difference Result 542 states and 735 transitions. [2018-11-18 21:29:22,832 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 735 transitions. [2018-11-18 21:29:22,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:22,835 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:22,835 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:22,835 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:22,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-11-18 21:29:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 711 transitions. [2018-11-18 21:29:22,863 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 711 transitions. Word has length 25 [2018-11-18 21:29:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:22,863 INFO L480 AbstractCegarLoop]: Abstraction has 523 states and 711 transitions. [2018-11-18 21:29:22,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 711 transitions. [2018-11-18 21:29:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 21:29:22,864 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:22,865 INFO L375 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] [2018-11-18 21:29:22,865 INFO L423 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:22,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:22,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1967475866, now seen corresponding path program 1 times [2018-11-18 21:29:22,866 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:22,866 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 [2018-11-18 21:29:22,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:23,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:23,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:23,158 INFO L256 TraceCheckUtils]: 0: Hoare triple {5447#true} call ULTIMATE.init(); {5447#true} is VALID [2018-11-18 21:29:23,159 INFO L273 TraceCheckUtils]: 1: Hoare triple {5447#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; {5447#true} is VALID [2018-11-18 21:29:23,159 INFO L273 TraceCheckUtils]: 2: Hoare triple {5447#true} assume true; {5447#true} is VALID [2018-11-18 21:29:23,160 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5447#true} {5447#true} #1158#return; {5447#true} is VALID [2018-11-18 21:29:23,160 INFO L256 TraceCheckUtils]: 4: Hoare triple {5447#true} call #t~ret166 := main(); {5447#true} is VALID [2018-11-18 21:29:23,160 INFO L273 TraceCheckUtils]: 5: Hoare triple {5447#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; {5447#true} is VALID [2018-11-18 21:29:23,160 INFO L256 TraceCheckUtils]: 6: Hoare triple {5447#true} call _BLAST_init(); {5447#true} is VALID [2018-11-18 21:29:23,161 INFO L273 TraceCheckUtils]: 7: Hoare triple {5447#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; {5447#true} is VALID [2018-11-18 21:29:23,161 INFO L273 TraceCheckUtils]: 8: Hoare triple {5447#true} assume true; {5447#true} is VALID [2018-11-18 21:29:23,161 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {5447#true} {5447#true} #1066#return; {5447#true} is VALID [2018-11-18 21:29:23,161 INFO L273 TraceCheckUtils]: 10: Hoare triple {5447#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; {5447#true} is VALID [2018-11-18 21:29:23,162 INFO L273 TraceCheckUtils]: 11: Hoare triple {5447#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {5447#true} is VALID [2018-11-18 21:29:23,162 INFO L256 TraceCheckUtils]: 12: Hoare triple {5447#true} call stub_driver_init(); {5447#true} is VALID [2018-11-18 21:29:23,164 INFO L273 TraceCheckUtils]: 13: Hoare triple {5447#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,165 INFO L273 TraceCheckUtils]: 14: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume true; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,165 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {5491#(= (_ bv0 32) ~pended~0)} {5447#true} #1068#return; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,170 INFO L273 TraceCheckUtils]: 16: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,173 INFO L273 TraceCheckUtils]: 17: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,173 INFO L273 TraceCheckUtils]: 18: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,174 INFO L273 TraceCheckUtils]: 19: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume 2bv32 == ~tmp_ndt_3~0; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,179 INFO L256 TraceCheckUtils]: 20: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,180 INFO L273 TraceCheckUtils]: 21: Hoare triple {5491#(= (_ 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; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,182 INFO L273 TraceCheckUtils]: 22: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume 0bv32 != ~disketteExtension__HoldNewRequests~2; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,182 INFO L273 TraceCheckUtils]: 23: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 != ~__cil_tmp41~0; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,183 INFO L256 TraceCheckUtils]: 24: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} call #t~ret151 := FloppyQueueRequest(~disketteExtension~2, ~Irp); {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,183 INFO L273 TraceCheckUtils]: 25: Hoare triple {5491#(= (_ 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; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,185 INFO L273 TraceCheckUtils]: 26: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume 1bv32 == ~PagingReferenceCount~0; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,185 INFO L273 TraceCheckUtils]: 27: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume !(0bv32 != ~FAKE_CONDITION~1);~Irp__IoStatus__Status~4 := 259bv32;~myStatus~0 := 259bv32; {5491#(= (_ bv0 32) ~pended~0)} is VALID [2018-11-18 21:29:23,186 INFO L273 TraceCheckUtils]: 28: Hoare triple {5491#(= (_ bv0 32) ~pended~0)} assume !(0bv32 == ~pended~0); {5448#false} is VALID [2018-11-18 21:29:23,187 INFO L256 TraceCheckUtils]: 29: Hoare triple {5448#false} call errorFn(); {5448#false} is VALID [2018-11-18 21:29:23,187 INFO L273 TraceCheckUtils]: 30: Hoare triple {5448#false} assume !false; {5448#false} is VALID [2018-11-18 21:29:23,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:23,188 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:23,190 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:23,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:23,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-18 21:29:23,191 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:23,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:23,246 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:23,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:23,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:23,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:23,248 INFO L87 Difference]: Start difference. First operand 523 states and 711 transitions. Second operand 3 states. [2018-11-18 21:29:26,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:26,178 INFO L93 Difference]: Finished difference Result 648 states and 868 transitions. [2018-11-18 21:29:26,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:26,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-18 21:29:26,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:26,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2018-11-18 21:29:26,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 652 transitions. [2018-11-18 21:29:26,203 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 652 transitions. [2018-11-18 21:29:27,770 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 652 edges. 652 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:27,801 INFO L225 Difference]: With dead ends: 648 [2018-11-18 21:29:27,801 INFO L226 Difference]: Without dead ends: 627 [2018-11-18 21:29:27,802 INFO L604 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 [2018-11-18 21:29:27,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2018-11-18 21:29:28,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 587. [2018-11-18 21:29:28,305 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:28,306 INFO L82 GeneralOperation]: Start isEquivalent. First operand 627 states. Second operand 587 states. [2018-11-18 21:29:28,306 INFO L74 IsIncluded]: Start isIncluded. First operand 627 states. Second operand 587 states. [2018-11-18 21:29:28,306 INFO L87 Difference]: Start difference. First operand 627 states. Second operand 587 states. [2018-11-18 21:29:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:28,337 INFO L93 Difference]: Finished difference Result 627 states and 837 transitions. [2018-11-18 21:29:28,337 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 837 transitions. [2018-11-18 21:29:28,340 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:28,341 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:28,341 INFO L74 IsIncluded]: Start isIncluded. First operand 587 states. Second operand 627 states. [2018-11-18 21:29:28,341 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 627 states. [2018-11-18 21:29:28,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:28,374 INFO L93 Difference]: Finished difference Result 627 states and 837 transitions. [2018-11-18 21:29:28,374 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 837 transitions. [2018-11-18 21:29:28,377 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:28,377 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:28,378 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:28,378 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2018-11-18 21:29:28,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 794 transitions. [2018-11-18 21:29:28,410 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 794 transitions. Word has length 31 [2018-11-18 21:29:28,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:28,411 INFO L480 AbstractCegarLoop]: Abstraction has 587 states and 794 transitions. [2018-11-18 21:29:28,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:28,411 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 794 transitions. [2018-11-18 21:29:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 21:29:28,412 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:28,413 INFO L375 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] [2018-11-18 21:29:28,413 INFO L423 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:28,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:28,413 INFO L82 PathProgramCache]: Analyzing trace with hash -815055133, now seen corresponding path program 1 times [2018-11-18 21:29:28,414 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:28,414 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 [2018-11-18 21:29:28,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:28,629 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:29,085 INFO L256 TraceCheckUtils]: 0: Hoare triple {8462#true} call ULTIMATE.init(); {8462#true} is VALID [2018-11-18 21:29:29,085 INFO L273 TraceCheckUtils]: 1: Hoare triple {8462#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; {8462#true} is VALID [2018-11-18 21:29:29,086 INFO L273 TraceCheckUtils]: 2: Hoare triple {8462#true} assume true; {8462#true} is VALID [2018-11-18 21:29:29,086 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {8462#true} {8462#true} #1158#return; {8462#true} is VALID [2018-11-18 21:29:29,086 INFO L256 TraceCheckUtils]: 4: Hoare triple {8462#true} call #t~ret166 := main(); {8462#true} is VALID [2018-11-18 21:29:29,087 INFO L273 TraceCheckUtils]: 5: Hoare triple {8462#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; {8462#true} is VALID [2018-11-18 21:29:29,087 INFO L256 TraceCheckUtils]: 6: Hoare triple {8462#true} call _BLAST_init(); {8462#true} is VALID [2018-11-18 21:29:29,088 INFO L273 TraceCheckUtils]: 7: Hoare triple {8462#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; {8462#true} is VALID [2018-11-18 21:29:29,088 INFO L273 TraceCheckUtils]: 8: Hoare triple {8462#true} assume true; {8462#true} is VALID [2018-11-18 21:29:29,089 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {8462#true} {8462#true} #1066#return; {8462#true} is VALID [2018-11-18 21:29:29,089 INFO L273 TraceCheckUtils]: 10: Hoare triple {8462#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; {8462#true} is VALID [2018-11-18 21:29:29,089 INFO L273 TraceCheckUtils]: 11: Hoare triple {8462#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {8462#true} is VALID [2018-11-18 21:29:29,089 INFO L256 TraceCheckUtils]: 12: Hoare triple {8462#true} call stub_driver_init(); {8462#true} is VALID [2018-11-18 21:29:29,090 INFO L273 TraceCheckUtils]: 13: Hoare triple {8462#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,091 INFO L273 TraceCheckUtils]: 14: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume true; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,091 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {8506#(= (_ bv0 32) ~compRegistered~0)} {8462#true} #1068#return; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,096 INFO L273 TraceCheckUtils]: 16: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,098 INFO L273 TraceCheckUtils]: 17: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,098 INFO L273 TraceCheckUtils]: 18: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,099 INFO L273 TraceCheckUtils]: 19: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,099 INFO L273 TraceCheckUtils]: 20: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume 3bv32 == ~tmp_ndt_4~0; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,100 INFO L256 TraceCheckUtils]: 21: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,100 INFO L273 TraceCheckUtils]: 22: Hoare triple {8506#(= (_ 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; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,110 INFO L273 TraceCheckUtils]: 23: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(1bv32 == ~PagingReferenceCount~0); {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,111 INFO L273 TraceCheckUtils]: 24: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,112 INFO L273 TraceCheckUtils]: 25: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,112 INFO L273 TraceCheckUtils]: 26: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume 0bv32 == ~irpSp__MinorFunction~0; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,113 INFO L256 TraceCheckUtils]: 27: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} call #t~ret27 := FloppyStartDevice(~DeviceObject, ~Irp); {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,119 INFO L273 TraceCheckUtils]: 28: Hoare triple {8506#(= (_ 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; {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,129 INFO L273 TraceCheckUtils]: 29: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume !(~s~0 != ~NP~0); {8506#(= (_ bv0 32) ~compRegistered~0)} is VALID [2018-11-18 21:29:29,130 INFO L273 TraceCheckUtils]: 30: Hoare triple {8506#(= (_ bv0 32) ~compRegistered~0)} assume 0bv32 != ~compRegistered~0; {8463#false} is VALID [2018-11-18 21:29:29,130 INFO L256 TraceCheckUtils]: 31: Hoare triple {8463#false} call errorFn(); {8463#false} is VALID [2018-11-18 21:29:29,131 INFO L273 TraceCheckUtils]: 32: Hoare triple {8463#false} assume !false; {8463#false} is VALID [2018-11-18 21:29:29,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:29,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:29,134 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:29,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:29,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-18 21:29:29,135 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:29,135 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:29,260 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:29,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:29,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:29,261 INFO L87 Difference]: Start difference. First operand 587 states and 794 transitions. Second operand 3 states. [2018-11-18 21:29:32,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:32,262 INFO L93 Difference]: Finished difference Result 1102 states and 1485 transitions. [2018-11-18 21:29:32,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:32,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-18 21:29:32,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:32,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:32,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2018-11-18 21:29:32,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 881 transitions. [2018-11-18 21:29:32,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 881 transitions. [2018-11-18 21:29:33,778 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 881 edges. 881 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:33,828 INFO L225 Difference]: With dead ends: 1102 [2018-11-18 21:29:33,828 INFO L226 Difference]: Without dead ends: 800 [2018-11-18 21:29:33,830 INFO L604 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 [2018-11-18 21:29:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2018-11-18 21:29:34,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 771. [2018-11-18 21:29:34,737 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:34,738 INFO L82 GeneralOperation]: Start isEquivalent. First operand 800 states. Second operand 771 states. [2018-11-18 21:29:34,738 INFO L74 IsIncluded]: Start isIncluded. First operand 800 states. Second operand 771 states. [2018-11-18 21:29:34,738 INFO L87 Difference]: Start difference. First operand 800 states. Second operand 771 states. [2018-11-18 21:29:34,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:34,786 INFO L93 Difference]: Finished difference Result 800 states and 1079 transitions. [2018-11-18 21:29:34,786 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1079 transitions. [2018-11-18 21:29:34,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:34,790 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:34,790 INFO L74 IsIncluded]: Start isIncluded. First operand 771 states. Second operand 800 states. [2018-11-18 21:29:34,790 INFO L87 Difference]: Start difference. First operand 771 states. Second operand 800 states. [2018-11-18 21:29:34,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:34,840 INFO L93 Difference]: Finished difference Result 800 states and 1079 transitions. [2018-11-18 21:29:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1079 transitions. [2018-11-18 21:29:34,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:34,844 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:34,844 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:34,845 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:34,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 771 states. [2018-11-18 21:29:34,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1046 transitions. [2018-11-18 21:29:34,899 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1046 transitions. Word has length 33 [2018-11-18 21:29:34,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:34,899 INFO L480 AbstractCegarLoop]: Abstraction has 771 states and 1046 transitions. [2018-11-18 21:29:34,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:34,900 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1046 transitions. [2018-11-18 21:29:34,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 21:29:34,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:34,901 INFO L375 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] [2018-11-18 21:29:34,902 INFO L423 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:34,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:34,902 INFO L82 PathProgramCache]: Analyzing trace with hash -481514973, now seen corresponding path program 1 times [2018-11-18 21:29:34,902 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:34,902 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 [2018-11-18 21:29:34,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:35,077 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:35,358 INFO L256 TraceCheckUtils]: 0: Hoare triple {12699#true} call ULTIMATE.init(); {12699#true} is VALID [2018-11-18 21:29:35,359 INFO L273 TraceCheckUtils]: 1: Hoare triple {12699#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; {12699#true} is VALID [2018-11-18 21:29:35,359 INFO L273 TraceCheckUtils]: 2: Hoare triple {12699#true} assume true; {12699#true} is VALID [2018-11-18 21:29:35,359 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {12699#true} {12699#true} #1158#return; {12699#true} is VALID [2018-11-18 21:29:35,360 INFO L256 TraceCheckUtils]: 4: Hoare triple {12699#true} call #t~ret166 := main(); {12699#true} is VALID [2018-11-18 21:29:35,360 INFO L273 TraceCheckUtils]: 5: Hoare triple {12699#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; {12699#true} is VALID [2018-11-18 21:29:35,360 INFO L256 TraceCheckUtils]: 6: Hoare triple {12699#true} call _BLAST_init(); {12699#true} is VALID [2018-11-18 21:29:35,361 INFO L273 TraceCheckUtils]: 7: Hoare triple {12699#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; {12699#true} is VALID [2018-11-18 21:29:35,361 INFO L273 TraceCheckUtils]: 8: Hoare triple {12699#true} assume true; {12699#true} is VALID [2018-11-18 21:29:35,361 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {12699#true} {12699#true} #1066#return; {12699#true} is VALID [2018-11-18 21:29:35,361 INFO L273 TraceCheckUtils]: 10: Hoare triple {12699#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; {12699#true} is VALID [2018-11-18 21:29:35,362 INFO L273 TraceCheckUtils]: 11: Hoare triple {12699#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {12699#true} is VALID [2018-11-18 21:29:35,362 INFO L256 TraceCheckUtils]: 12: Hoare triple {12699#true} call stub_driver_init(); {12699#true} is VALID [2018-11-18 21:29:35,362 INFO L273 TraceCheckUtils]: 13: Hoare triple {12699#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {12699#true} is VALID [2018-11-18 21:29:35,362 INFO L273 TraceCheckUtils]: 14: Hoare triple {12699#true} assume true; {12699#true} is VALID [2018-11-18 21:29:35,363 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {12699#true} {12699#true} #1068#return; {12699#true} is VALID [2018-11-18 21:29:35,363 INFO L273 TraceCheckUtils]: 16: Hoare triple {12699#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {12699#true} is VALID [2018-11-18 21:29:35,363 INFO L273 TraceCheckUtils]: 17: Hoare triple {12699#true} assume 0bv32 == ~tmp_ndt_1~0; {12699#true} is VALID [2018-11-18 21:29:35,364 INFO L256 TraceCheckUtils]: 18: Hoare triple {12699#true} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {12699#true} is VALID [2018-11-18 21:29:35,364 INFO L273 TraceCheckUtils]: 19: Hoare triple {12699#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; {12699#true} is VALID [2018-11-18 21:29:35,364 INFO L256 TraceCheckUtils]: 20: Hoare triple {12699#true} call IofCompleteRequest(~Irp, 0bv32); {12699#true} is VALID [2018-11-18 21:29:35,365 INFO L273 TraceCheckUtils]: 21: Hoare triple {12699#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {12699#true} is VALID [2018-11-18 21:29:35,379 INFO L273 TraceCheckUtils]: 22: Hoare triple {12699#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,380 INFO L273 TraceCheckUtils]: 23: Hoare triple {12770#(= ~DC~0 ~s~0)} assume true; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,381 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {12770#(= ~DC~0 ~s~0)} {12699#true} #1086#return; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,381 INFO L273 TraceCheckUtils]: 25: Hoare triple {12770#(= ~DC~0 ~s~0)} #res := 0bv32; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,382 INFO L273 TraceCheckUtils]: 26: Hoare triple {12770#(= ~DC~0 ~s~0)} assume true; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,382 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {12770#(= ~DC~0 ~s~0)} {12699#true} #1070#return; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,383 INFO L273 TraceCheckUtils]: 28: Hoare triple {12770#(= ~DC~0 ~s~0)} ~status~1 := #t~ret93;havoc #t~ret93; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,383 INFO L273 TraceCheckUtils]: 29: Hoare triple {12770#(= ~DC~0 ~s~0)} assume !(1bv32 == ~pended~0); {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,384 INFO L273 TraceCheckUtils]: 30: Hoare triple {12770#(= ~DC~0 ~s~0)} assume !(1bv32 == ~pended~0); {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,385 INFO L273 TraceCheckUtils]: 31: Hoare triple {12770#(= ~DC~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,386 INFO L273 TraceCheckUtils]: 32: Hoare triple {12770#(= ~DC~0 ~s~0)} assume 4294967295bv32 != ~status~1; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,387 INFO L273 TraceCheckUtils]: 33: Hoare triple {12770#(= ~DC~0 ~s~0)} assume ~s~0 != ~SKIP2~0; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,388 INFO L273 TraceCheckUtils]: 34: Hoare triple {12770#(= ~DC~0 ~s~0)} assume ~s~0 != ~IPC~0; {12770#(= ~DC~0 ~s~0)} is VALID [2018-11-18 21:29:35,389 INFO L273 TraceCheckUtils]: 35: Hoare triple {12770#(= ~DC~0 ~s~0)} assume ~s~0 != ~DC~0; {12700#false} is VALID [2018-11-18 21:29:35,389 INFO L256 TraceCheckUtils]: 36: Hoare triple {12700#false} call errorFn(); {12700#false} is VALID [2018-11-18 21:29:35,389 INFO L273 TraceCheckUtils]: 37: Hoare triple {12700#false} assume !false; {12700#false} is VALID [2018-11-18 21:29:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:35,394 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:35,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:35,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:35,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-18 21:29:35,398 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:35,398 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:35,467 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:35,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:35,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:35,469 INFO L87 Difference]: Start difference. First operand 771 states and 1046 transitions. Second operand 3 states. [2018-11-18 21:29:38,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:38,482 INFO L93 Difference]: Finished difference Result 815 states and 1100 transitions. [2018-11-18 21:29:38,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:38,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-18 21:29:38,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:38,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2018-11-18 21:29:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:38,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 539 transitions. [2018-11-18 21:29:38,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 539 transitions. [2018-11-18 21:29:39,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:39,421 INFO L225 Difference]: With dead ends: 815 [2018-11-18 21:29:39,421 INFO L226 Difference]: Without dead ends: 810 [2018-11-18 21:29:39,422 INFO L604 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 [2018-11-18 21:29:39,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2018-11-18 21:29:40,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 806. [2018-11-18 21:29:40,387 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:40,387 INFO L82 GeneralOperation]: Start isEquivalent. First operand 810 states. Second operand 806 states. [2018-11-18 21:29:40,388 INFO L74 IsIncluded]: Start isIncluded. First operand 810 states. Second operand 806 states. [2018-11-18 21:29:40,388 INFO L87 Difference]: Start difference. First operand 810 states. Second operand 806 states. [2018-11-18 21:29:40,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:40,434 INFO L93 Difference]: Finished difference Result 810 states and 1093 transitions. [2018-11-18 21:29:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1093 transitions. [2018-11-18 21:29:40,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:40,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:40,438 INFO L74 IsIncluded]: Start isIncluded. First operand 806 states. Second operand 810 states. [2018-11-18 21:29:40,439 INFO L87 Difference]: Start difference. First operand 806 states. Second operand 810 states. [2018-11-18 21:29:40,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:40,483 INFO L93 Difference]: Finished difference Result 810 states and 1093 transitions. [2018-11-18 21:29:40,483 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 1093 transitions. [2018-11-18 21:29:40,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:40,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:40,487 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:40,487 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 806 states. [2018-11-18 21:29:40,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1090 transitions. [2018-11-18 21:29:40,537 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1090 transitions. Word has length 38 [2018-11-18 21:29:40,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:40,537 INFO L480 AbstractCegarLoop]: Abstraction has 806 states and 1090 transitions. [2018-11-18 21:29:40,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:40,537 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1090 transitions. [2018-11-18 21:29:40,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 21:29:40,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:40,539 INFO L375 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] [2018-11-18 21:29:40,539 INFO L423 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:40,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:40,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1405012121, now seen corresponding path program 1 times [2018-11-18 21:29:40,540 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:40,540 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 [2018-11-18 21:29:40,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:40,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:40,728 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:40,793 INFO L256 TraceCheckUtils]: 0: Hoare triple {16625#true} call ULTIMATE.init(); {16625#true} is VALID [2018-11-18 21:29:40,793 INFO L273 TraceCheckUtils]: 1: Hoare triple {16625#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; {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L273 TraceCheckUtils]: 2: Hoare triple {16625#true} assume true; {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {16625#true} {16625#true} #1158#return; {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L256 TraceCheckUtils]: 4: Hoare triple {16625#true} call #t~ret166 := main(); {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L273 TraceCheckUtils]: 5: Hoare triple {16625#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; {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L256 TraceCheckUtils]: 6: Hoare triple {16625#true} call _BLAST_init(); {16625#true} is VALID [2018-11-18 21:29:40,794 INFO L273 TraceCheckUtils]: 7: Hoare triple {16625#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; {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L273 TraceCheckUtils]: 8: Hoare triple {16625#true} assume true; {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {16625#true} {16625#true} #1066#return; {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L273 TraceCheckUtils]: 10: Hoare triple {16625#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; {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L273 TraceCheckUtils]: 11: Hoare triple {16625#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L256 TraceCheckUtils]: 12: Hoare triple {16625#true} call stub_driver_init(); {16625#true} is VALID [2018-11-18 21:29:40,795 INFO L273 TraceCheckUtils]: 13: Hoare triple {16625#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {16625#true} is VALID [2018-11-18 21:29:40,796 INFO L273 TraceCheckUtils]: 14: Hoare triple {16625#true} assume true; {16625#true} is VALID [2018-11-18 21:29:40,796 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {16625#true} {16625#true} #1068#return; {16625#true} is VALID [2018-11-18 21:29:40,796 INFO L273 TraceCheckUtils]: 16: Hoare triple {16625#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {16625#true} is VALID [2018-11-18 21:29:40,796 INFO L273 TraceCheckUtils]: 17: Hoare triple {16625#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {16625#true} is VALID [2018-11-18 21:29:40,797 INFO L273 TraceCheckUtils]: 18: Hoare triple {16625#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {16625#true} is VALID [2018-11-18 21:29:40,797 INFO L273 TraceCheckUtils]: 19: Hoare triple {16625#true} assume 2bv32 == ~tmp_ndt_3~0; {16625#true} is VALID [2018-11-18 21:29:40,797 INFO L256 TraceCheckUtils]: 20: Hoare triple {16625#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {16625#true} is VALID [2018-11-18 21:29:40,797 INFO L273 TraceCheckUtils]: 21: Hoare triple {16625#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; {16625#true} is VALID [2018-11-18 21:29:40,798 INFO L273 TraceCheckUtils]: 22: Hoare triple {16625#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {16625#true} is VALID [2018-11-18 21:29:40,798 INFO L273 TraceCheckUtils]: 23: Hoare triple {16625#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {16625#true} is VALID [2018-11-18 21:29:40,798 INFO L273 TraceCheckUtils]: 24: Hoare triple {16625#true} assume 0bv32 == ~disketteExtension__IsStarted~2; {16625#true} is VALID [2018-11-18 21:29:40,813 INFO L273 TraceCheckUtils]: 25: Hoare triple {16625#true} assume ~s~0 == ~NP~0;~s~0 := ~SKIP1~0; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,822 INFO L273 TraceCheckUtils]: 26: Hoare triple {16705#(= ~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; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,836 INFO L256 TraceCheckUtils]: 27: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} call #t~ret154 := IofCallDriver(~disketteExtension__TargetObject~2, ~Irp); {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,837 INFO L273 TraceCheckUtils]: 28: Hoare triple {16705#(= ~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; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,838 INFO L273 TraceCheckUtils]: 29: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} assume !(0bv32 != ~compRegistered~0); {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,842 INFO L273 TraceCheckUtils]: 30: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} havoc ~tmp_ndt_10~0;~tmp_ndt_10~0 := #t~nondet105;havoc #t~nondet105; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,842 INFO L273 TraceCheckUtils]: 31: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} assume 0bv32 == ~tmp_ndt_10~0; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,842 INFO L273 TraceCheckUtils]: 32: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} ~returnVal2~0 := 0bv32; {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,843 INFO L273 TraceCheckUtils]: 33: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~NP~0); {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,843 INFO L273 TraceCheckUtils]: 34: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~MPR1~0); {16705#(= ~SKIP1~0 ~s~0)} is VALID [2018-11-18 21:29:40,844 INFO L273 TraceCheckUtils]: 35: Hoare triple {16705#(= ~SKIP1~0 ~s~0)} assume !(~s~0 == ~SKIP1~0); {16626#false} is VALID [2018-11-18 21:29:40,844 INFO L256 TraceCheckUtils]: 36: Hoare triple {16626#false} call errorFn(); {16626#false} is VALID [2018-11-18 21:29:40,844 INFO L273 TraceCheckUtils]: 37: Hoare triple {16626#false} assume !false; {16626#false} is VALID [2018-11-18 21:29:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:40,845 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:40,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:40,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:29:40,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-18 21:29:40,848 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:40,848 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:29:40,897 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:40,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:29:40,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:29:40,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:29:40,898 INFO L87 Difference]: Start difference. First operand 806 states and 1090 transitions. Second operand 3 states. [2018-11-18 21:29:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:43,381 INFO L93 Difference]: Finished difference Result 821 states and 1110 transitions. [2018-11-18 21:29:43,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:29:43,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-18 21:29:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:43,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2018-11-18 21:29:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:29:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 519 transitions. [2018-11-18 21:29:43,395 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 519 transitions. [2018-11-18 21:29:44,256 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 519 edges. 519 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:44,293 INFO L225 Difference]: With dead ends: 821 [2018-11-18 21:29:44,294 INFO L226 Difference]: Without dead ends: 818 [2018-11-18 21:29:44,294 INFO L604 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 [2018-11-18 21:29:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2018-11-18 21:29:45,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 817. [2018-11-18 21:29:45,752 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:45,752 INFO L82 GeneralOperation]: Start isEquivalent. First operand 818 states. Second operand 817 states. [2018-11-18 21:29:45,752 INFO L74 IsIncluded]: Start isIncluded. First operand 818 states. Second operand 817 states. [2018-11-18 21:29:45,753 INFO L87 Difference]: Start difference. First operand 818 states. Second operand 817 states. [2018-11-18 21:29:45,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:45,799 INFO L93 Difference]: Finished difference Result 818 states and 1106 transitions. [2018-11-18 21:29:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1106 transitions. [2018-11-18 21:29:45,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:45,803 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:45,803 INFO L74 IsIncluded]: Start isIncluded. First operand 817 states. Second operand 818 states. [2018-11-18 21:29:45,803 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 818 states. [2018-11-18 21:29:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:45,855 INFO L93 Difference]: Finished difference Result 818 states and 1106 transitions. [2018-11-18 21:29:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1106 transitions. [2018-11-18 21:29:45,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:45,858 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:45,858 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:45,859 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:45,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2018-11-18 21:29:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1104 transitions. [2018-11-18 21:29:45,916 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1104 transitions. Word has length 38 [2018-11-18 21:29:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:45,916 INFO L480 AbstractCegarLoop]: Abstraction has 817 states and 1104 transitions. [2018-11-18 21:29:45,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:29:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1104 transitions. [2018-11-18 21:29:45,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 21:29:45,918 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:45,918 INFO L375 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] [2018-11-18 21:29:45,918 INFO L423 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:45,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:45,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1589461021, now seen corresponding path program 1 times [2018-11-18 21:29:45,919 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:45,919 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 [2018-11-18 21:29:45,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:46,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:46,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:46,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:46,287 INFO L256 TraceCheckUtils]: 0: Hoare triple {20591#true} call ULTIMATE.init(); {20591#true} is VALID [2018-11-18 21:29:46,288 INFO L273 TraceCheckUtils]: 1: Hoare triple {20591#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; {20591#true} is VALID [2018-11-18 21:29:46,288 INFO L273 TraceCheckUtils]: 2: Hoare triple {20591#true} assume true; {20591#true} is VALID [2018-11-18 21:29:46,288 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20591#true} {20591#true} #1158#return; {20591#true} is VALID [2018-11-18 21:29:46,288 INFO L256 TraceCheckUtils]: 4: Hoare triple {20591#true} call #t~ret166 := main(); {20591#true} is VALID [2018-11-18 21:29:46,288 INFO L273 TraceCheckUtils]: 5: Hoare triple {20591#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; {20591#true} is VALID [2018-11-18 21:29:46,289 INFO L256 TraceCheckUtils]: 6: Hoare triple {20591#true} call _BLAST_init(); {20591#true} is VALID [2018-11-18 21:29:46,293 INFO L273 TraceCheckUtils]: 7: Hoare triple {20591#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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,294 INFO L273 TraceCheckUtils]: 8: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,294 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20591#true} #1066#return; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,295 INFO L273 TraceCheckUtils]: 10: Hoare triple {20617#(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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,295 INFO L273 TraceCheckUtils]: 11: Hoare triple {20617#(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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,296 INFO L256 TraceCheckUtils]: 12: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call stub_driver_init(); {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,297 INFO L273 TraceCheckUtils]: 13: Hoare triple {20617#(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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,297 INFO L273 TraceCheckUtils]: 14: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,298 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1068#return; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,306 INFO L273 TraceCheckUtils]: 16: Hoare triple {20617#(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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,307 INFO L273 TraceCheckUtils]: 17: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~tmp_ndt_1~0; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,308 INFO L256 TraceCheckUtils]: 18: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,308 INFO L273 TraceCheckUtils]: 19: Hoare triple {20617#(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; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,309 INFO L256 TraceCheckUtils]: 20: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call IofCompleteRequest(~Irp, 0bv32); {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,309 INFO L273 TraceCheckUtils]: 21: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,310 INFO L273 TraceCheckUtils]: 22: Hoare triple {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,310 INFO L273 TraceCheckUtils]: 23: Hoare triple {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,311 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1086#return; {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,312 INFO L273 TraceCheckUtils]: 25: Hoare triple {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #res := 0bv32; {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,313 INFO L273 TraceCheckUtils]: 26: Hoare triple {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:46,315 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {20663#(and (= ~DC~0 ~s~0) (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {20617#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1070#return; {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,316 INFO L273 TraceCheckUtils]: 28: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} ~status~1 := #t~ret93;havoc #t~ret93; {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,317 INFO L273 TraceCheckUtils]: 29: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,318 INFO L273 TraceCheckUtils]: 30: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,319 INFO L273 TraceCheckUtils]: 31: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~UNLOADED~0; {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,319 INFO L273 TraceCheckUtils]: 32: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume 4294967295bv32 != ~status~1; {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:46,320 INFO L273 TraceCheckUtils]: 33: Hoare triple {20679#(and (= (bvadd ~SKIP2~0 (_ bv4294967292 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(~s~0 != ~SKIP2~0); {20592#false} is VALID [2018-11-18 21:29:46,320 INFO L273 TraceCheckUtils]: 34: Hoare triple {20592#false} assume !(1bv32 == ~pended~0); {20592#false} is VALID [2018-11-18 21:29:46,321 INFO L273 TraceCheckUtils]: 35: Hoare triple {20592#false} assume ~s~0 == ~DC~0; {20592#false} is VALID [2018-11-18 21:29:46,321 INFO L273 TraceCheckUtils]: 36: Hoare triple {20592#false} assume 259bv32 == ~status~1; {20592#false} is VALID [2018-11-18 21:29:46,321 INFO L256 TraceCheckUtils]: 37: Hoare triple {20592#false} call errorFn(); {20592#false} is VALID [2018-11-18 21:29:46,322 INFO L273 TraceCheckUtils]: 38: Hoare triple {20592#false} assume !false; {20592#false} is VALID [2018-11-18 21:29:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:46,328 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:46,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:46,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:29:46,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-18 21:29:46,332 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:46,332 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:29:46,435 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:46,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:29:46,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:29:46,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:29:46,436 INFO L87 Difference]: Start difference. First operand 817 states and 1104 transitions. Second operand 5 states. [2018-11-18 21:29:53,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:53,361 INFO L93 Difference]: Finished difference Result 830 states and 1116 transitions. [2018-11-18 21:29:53,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:29:53,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-11-18 21:29:53,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:29:53,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:29:53,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 541 transitions. [2018-11-18 21:29:53,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:29:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 541 transitions. [2018-11-18 21:29:53,374 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 541 transitions. [2018-11-18 21:29:56,911 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 541 edges. 541 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:56,963 INFO L225 Difference]: With dead ends: 830 [2018-11-18 21:29:56,963 INFO L226 Difference]: Without dead ends: 821 [2018-11-18 21:29:56,964 INFO L604 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 [2018-11-18 21:29:56,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2018-11-18 21:29:59,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 817. [2018-11-18 21:29:59,028 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:29:59,028 INFO L82 GeneralOperation]: Start isEquivalent. First operand 821 states. Second operand 817 states. [2018-11-18 21:29:59,028 INFO L74 IsIncluded]: Start isIncluded. First operand 821 states. Second operand 817 states. [2018-11-18 21:29:59,028 INFO L87 Difference]: Start difference. First operand 821 states. Second operand 817 states. [2018-11-18 21:29:59,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:59,077 INFO L93 Difference]: Finished difference Result 821 states and 1105 transitions. [2018-11-18 21:29:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1105 transitions. [2018-11-18 21:29:59,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:59,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:59,081 INFO L74 IsIncluded]: Start isIncluded. First operand 817 states. Second operand 821 states. [2018-11-18 21:29:59,081 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 821 states. [2018-11-18 21:29:59,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:29:59,132 INFO L93 Difference]: Finished difference Result 821 states and 1105 transitions. [2018-11-18 21:29:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1105 transitions. [2018-11-18 21:29:59,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:29:59,135 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:29:59,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:29:59,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:29:59,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2018-11-18 21:29:59,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1102 transitions. [2018-11-18 21:29:59,196 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1102 transitions. Word has length 39 [2018-11-18 21:29:59,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:29:59,196 INFO L480 AbstractCegarLoop]: Abstraction has 817 states and 1102 transitions. [2018-11-18 21:29:59,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:29:59,197 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1102 transitions. [2018-11-18 21:29:59,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-18 21:29:59,198 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:29:59,198 INFO L375 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] [2018-11-18 21:29:59,198 INFO L423 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:29:59,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:29:59,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1377063567, now seen corresponding path program 1 times [2018-11-18 21:29:59,199 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:29:59,199 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 [2018-11-18 21:29:59,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:29:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:29:59,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:29:59,724 INFO L256 TraceCheckUtils]: 0: Hoare triple {24582#true} call ULTIMATE.init(); {24582#true} is VALID [2018-11-18 21:29:59,724 INFO L273 TraceCheckUtils]: 1: Hoare triple {24582#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; {24582#true} is VALID [2018-11-18 21:29:59,724 INFO L273 TraceCheckUtils]: 2: Hoare triple {24582#true} assume true; {24582#true} is VALID [2018-11-18 21:29:59,724 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {24582#true} {24582#true} #1158#return; {24582#true} is VALID [2018-11-18 21:29:59,725 INFO L256 TraceCheckUtils]: 4: Hoare triple {24582#true} call #t~ret166 := main(); {24582#true} is VALID [2018-11-18 21:29:59,725 INFO L273 TraceCheckUtils]: 5: Hoare triple {24582#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; {24582#true} is VALID [2018-11-18 21:29:59,725 INFO L256 TraceCheckUtils]: 6: Hoare triple {24582#true} call _BLAST_init(); {24582#true} is VALID [2018-11-18 21:29:59,726 INFO L273 TraceCheckUtils]: 7: Hoare triple {24582#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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,726 INFO L273 TraceCheckUtils]: 8: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,727 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24582#true} #1066#return; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,727 INFO L273 TraceCheckUtils]: 10: Hoare triple {24608#(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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,728 INFO L273 TraceCheckUtils]: 11: Hoare triple {24608#(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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,728 INFO L256 TraceCheckUtils]: 12: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call stub_driver_init(); {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,729 INFO L273 TraceCheckUtils]: 13: Hoare triple {24608#(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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,729 INFO L273 TraceCheckUtils]: 14: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,730 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1068#return; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,731 INFO L273 TraceCheckUtils]: 16: Hoare triple {24608#(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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,731 INFO L273 TraceCheckUtils]: 17: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume 0bv32 == ~tmp_ndt_1~0; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,732 INFO L256 TraceCheckUtils]: 18: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,733 INFO L273 TraceCheckUtils]: 19: Hoare triple {24608#(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; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,734 INFO L256 TraceCheckUtils]: 20: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} call IofCompleteRequest(~Irp, 0bv32); {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,735 INFO L273 TraceCheckUtils]: 21: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,736 INFO L273 TraceCheckUtils]: 22: Hoare triple {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,736 INFO L273 TraceCheckUtils]: 23: Hoare triple {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,737 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1086#return; {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,741 INFO L273 TraceCheckUtils]: 25: Hoare triple {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #res := 0bv32; {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,741 INFO L273 TraceCheckUtils]: 26: Hoare triple {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} assume true; {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} is VALID [2018-11-18 21:29:59,743 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {24654#(and (= ~DC~0 ~s~0) (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} {24608#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~DC~0))} #1070#return; {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,743 INFO L273 TraceCheckUtils]: 28: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} ~status~1 := #t~ret93;havoc #t~ret93; {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,745 INFO L273 TraceCheckUtils]: 29: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,747 INFO L273 TraceCheckUtils]: 30: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(1bv32 == ~pended~0); {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,751 INFO L273 TraceCheckUtils]: 31: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~UNLOADED~0; {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,753 INFO L273 TraceCheckUtils]: 32: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume 4294967295bv32 != ~status~1; {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,753 INFO L273 TraceCheckUtils]: 33: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume ~s~0 != ~SKIP2~0; {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} is VALID [2018-11-18 21:29:59,754 INFO L273 TraceCheckUtils]: 34: Hoare triple {24670#(and (= (bvadd ~IPC~0 (_ bv4294967289 32)) (_ bv0 32)) (= (_ bv2 32) ~s~0))} assume !(~s~0 != ~IPC~0); {24583#false} is VALID [2018-11-18 21:29:59,755 INFO L273 TraceCheckUtils]: 35: Hoare triple {24583#false} assume !(1bv32 == ~pended~0); {24583#false} is VALID [2018-11-18 21:29:59,755 INFO L273 TraceCheckUtils]: 36: Hoare triple {24583#false} assume ~s~0 == ~DC~0; {24583#false} is VALID [2018-11-18 21:29:59,755 INFO L273 TraceCheckUtils]: 37: Hoare triple {24583#false} assume 259bv32 == ~status~1; {24583#false} is VALID [2018-11-18 21:29:59,755 INFO L256 TraceCheckUtils]: 38: Hoare triple {24583#false} call errorFn(); {24583#false} is VALID [2018-11-18 21:29:59,755 INFO L273 TraceCheckUtils]: 39: Hoare triple {24583#false} assume !false; {24583#false} is VALID [2018-11-18 21:29:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:29:59,759 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:29:59,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:29:59,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:29:59,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-11-18 21:29:59,761 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:29:59,761 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:29:59,818 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:29:59,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:29:59,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:29:59,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:29:59,819 INFO L87 Difference]: Start difference. First operand 817 states and 1102 transitions. Second operand 5 states. [2018-11-18 21:30:04,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:04,320 INFO L93 Difference]: Finished difference Result 830 states and 1114 transitions. [2018-11-18 21:30:04,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:30:04,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2018-11-18 21:30:04,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2018-11-18 21:30:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:04,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 540 transitions. [2018-11-18 21:30:04,330 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 540 transitions. [2018-11-18 21:30:05,276 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 540 edges. 540 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:05,317 INFO L225 Difference]: With dead ends: 830 [2018-11-18 21:30:05,317 INFO L226 Difference]: Without dead ends: 821 [2018-11-18 21:30:05,318 INFO L604 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 [2018-11-18 21:30:05,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2018-11-18 21:30:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 817. [2018-11-18 21:30:07,826 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:07,826 INFO L82 GeneralOperation]: Start isEquivalent. First operand 821 states. Second operand 817 states. [2018-11-18 21:30:07,826 INFO L74 IsIncluded]: Start isIncluded. First operand 821 states. Second operand 817 states. [2018-11-18 21:30:07,826 INFO L87 Difference]: Start difference. First operand 821 states. Second operand 817 states. [2018-11-18 21:30:07,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:07,860 INFO L93 Difference]: Finished difference Result 821 states and 1103 transitions. [2018-11-18 21:30:07,860 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1103 transitions. [2018-11-18 21:30:07,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:07,862 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:07,862 INFO L74 IsIncluded]: Start isIncluded. First operand 817 states. Second operand 821 states. [2018-11-18 21:30:07,862 INFO L87 Difference]: Start difference. First operand 817 states. Second operand 821 states. [2018-11-18 21:30:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:07,908 INFO L93 Difference]: Finished difference Result 821 states and 1103 transitions. [2018-11-18 21:30:07,909 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1103 transitions. [2018-11-18 21:30:07,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:07,911 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:07,911 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:07,911 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:07,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2018-11-18 21:30:07,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1100 transitions. [2018-11-18 21:30:07,960 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1100 transitions. Word has length 40 [2018-11-18 21:30:07,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:07,961 INFO L480 AbstractCegarLoop]: Abstraction has 817 states and 1100 transitions. [2018-11-18 21:30:07,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:30:07,961 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1100 transitions. [2018-11-18 21:30:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-18 21:30:07,963 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:07,963 INFO L375 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] [2018-11-18 21:30:07,963 INFO L423 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:07,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:07,963 INFO L82 PathProgramCache]: Analyzing trace with hash -205787380, now seen corresponding path program 1 times [2018-11-18 21:30:07,964 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:07,964 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 [2018-11-18 21:30:07,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:08,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:08,092 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:08,171 INFO L256 TraceCheckUtils]: 0: Hoare triple {28576#true} call ULTIMATE.init(); {28576#true} is VALID [2018-11-18 21:30:08,172 INFO L273 TraceCheckUtils]: 1: Hoare triple {28576#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; {28576#true} is VALID [2018-11-18 21:30:08,172 INFO L273 TraceCheckUtils]: 2: Hoare triple {28576#true} assume true; {28576#true} is VALID [2018-11-18 21:30:08,173 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {28576#true} {28576#true} #1158#return; {28576#true} is VALID [2018-11-18 21:30:08,173 INFO L256 TraceCheckUtils]: 4: Hoare triple {28576#true} call #t~ret166 := main(); {28576#true} is VALID [2018-11-18 21:30:08,173 INFO L273 TraceCheckUtils]: 5: Hoare triple {28576#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; {28576#true} is VALID [2018-11-18 21:30:08,173 INFO L256 TraceCheckUtils]: 6: Hoare triple {28576#true} call _BLAST_init(); {28576#true} is VALID [2018-11-18 21:30:08,173 INFO L273 TraceCheckUtils]: 7: Hoare triple {28576#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; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L273 TraceCheckUtils]: 8: Hoare triple {28576#true} assume true; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {28576#true} {28576#true} #1066#return; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L273 TraceCheckUtils]: 10: Hoare triple {28576#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; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L273 TraceCheckUtils]: 11: Hoare triple {28576#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L256 TraceCheckUtils]: 12: Hoare triple {28576#true} call stub_driver_init(); {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L273 TraceCheckUtils]: 13: Hoare triple {28576#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {28576#true} is VALID [2018-11-18 21:30:08,174 INFO L273 TraceCheckUtils]: 14: Hoare triple {28576#true} assume true; {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {28576#true} {28576#true} #1068#return; {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L273 TraceCheckUtils]: 16: Hoare triple {28576#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L273 TraceCheckUtils]: 17: Hoare triple {28576#true} assume 0bv32 == ~tmp_ndt_1~0; {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L256 TraceCheckUtils]: 18: Hoare triple {28576#true} call #t~ret93 := FloppyCreateClose(~devobj~0, ~pirp~0); {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L273 TraceCheckUtils]: 19: Hoare triple {28576#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; {28576#true} is VALID [2018-11-18 21:30:08,175 INFO L256 TraceCheckUtils]: 20: Hoare triple {28576#true} call IofCompleteRequest(~Irp, 0bv32); {28576#true} is VALID [2018-11-18 21:30:08,176 INFO L273 TraceCheckUtils]: 21: Hoare triple {28576#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {28576#true} is VALID [2018-11-18 21:30:08,176 INFO L273 TraceCheckUtils]: 22: Hoare triple {28576#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {28576#true} is VALID [2018-11-18 21:30:08,176 INFO L273 TraceCheckUtils]: 23: Hoare triple {28576#true} assume true; {28576#true} is VALID [2018-11-18 21:30:08,176 INFO L268 TraceCheckUtils]: 24: Hoare quadruple {28576#true} {28576#true} #1086#return; {28576#true} is VALID [2018-11-18 21:30:08,177 INFO L273 TraceCheckUtils]: 25: Hoare triple {28576#true} #res := 0bv32; {28656#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-18 21:30:08,177 INFO L273 TraceCheckUtils]: 26: Hoare triple {28656#(= (_ bv0 32) |FloppyCreateClose_#res|)} assume true; {28656#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-18 21:30:08,178 INFO L268 TraceCheckUtils]: 27: Hoare quadruple {28656#(= (_ bv0 32) |FloppyCreateClose_#res|)} {28576#true} #1070#return; {28663#(= |main_#t~ret93| (_ bv0 32))} is VALID [2018-11-18 21:30:08,178 INFO L273 TraceCheckUtils]: 28: Hoare triple {28663#(= |main_#t~ret93| (_ bv0 32))} ~status~1 := #t~ret93;havoc #t~ret93; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,179 INFO L273 TraceCheckUtils]: 29: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,179 INFO L273 TraceCheckUtils]: 30: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,180 INFO L273 TraceCheckUtils]: 31: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,181 INFO L273 TraceCheckUtils]: 32: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume 4294967295bv32 != ~status~1; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,182 INFO L273 TraceCheckUtils]: 33: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,182 INFO L273 TraceCheckUtils]: 34: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~IPC~0; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,183 INFO L273 TraceCheckUtils]: 35: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume !(~s~0 != ~DC~0); {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,183 INFO L273 TraceCheckUtils]: 36: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,183 INFO L273 TraceCheckUtils]: 37: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume ~s~0 == ~DC~0; {28667#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:08,184 INFO L273 TraceCheckUtils]: 38: Hoare triple {28667#(= main_~status~1 (_ bv0 32))} assume 259bv32 == ~status~1; {28577#false} is VALID [2018-11-18 21:30:08,184 INFO L256 TraceCheckUtils]: 39: Hoare triple {28577#false} call errorFn(); {28577#false} is VALID [2018-11-18 21:30:08,184 INFO L273 TraceCheckUtils]: 40: Hoare triple {28577#false} assume !false; {28577#false} is VALID [2018-11-18 21:30:08,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:08,186 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:08,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:08,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:30:08,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-18 21:30:08,189 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:08,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:30:08,253 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:08,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:30:08,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:30:08,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:30:08,254 INFO L87 Difference]: Start difference. First operand 817 states and 1100 transitions. Second operand 5 states. [2018-11-18 21:30:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:13,632 INFO L93 Difference]: Finished difference Result 830 states and 1112 transitions. [2018-11-18 21:30:13,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:30:13,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2018-11-18 21:30:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:13,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 511 transitions. [2018-11-18 21:30:13,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:13,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 511 transitions. [2018-11-18 21:30:13,642 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 511 transitions. [2018-11-18 21:30:14,631 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 511 edges. 511 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:14,683 INFO L225 Difference]: With dead ends: 830 [2018-11-18 21:30:14,683 INFO L226 Difference]: Without dead ends: 815 [2018-11-18 21:30:14,684 INFO L604 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 [2018-11-18 21:30:14,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2018-11-18 21:30:16,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 815. [2018-11-18 21:30:16,097 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:16,098 INFO L82 GeneralOperation]: Start isEquivalent. First operand 815 states. Second operand 815 states. [2018-11-18 21:30:16,098 INFO L74 IsIncluded]: Start isIncluded. First operand 815 states. Second operand 815 states. [2018-11-18 21:30:16,098 INFO L87 Difference]: Start difference. First operand 815 states. Second operand 815 states. [2018-11-18 21:30:16,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:16,140 INFO L93 Difference]: Finished difference Result 815 states and 1096 transitions. [2018-11-18 21:30:16,140 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1096 transitions. [2018-11-18 21:30:16,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:16,143 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:16,143 INFO L74 IsIncluded]: Start isIncluded. First operand 815 states. Second operand 815 states. [2018-11-18 21:30:16,143 INFO L87 Difference]: Start difference. First operand 815 states. Second operand 815 states. [2018-11-18 21:30:16,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:16,183 INFO L93 Difference]: Finished difference Result 815 states and 1096 transitions. [2018-11-18 21:30:16,183 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1096 transitions. [2018-11-18 21:30:16,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:16,185 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:16,185 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:16,185 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:16,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2018-11-18 21:30:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1096 transitions. [2018-11-18 21:30:16,220 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1096 transitions. Word has length 41 [2018-11-18 21:30:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:16,220 INFO L480 AbstractCegarLoop]: Abstraction has 815 states and 1096 transitions. [2018-11-18 21:30:16,220 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:30:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1096 transitions. [2018-11-18 21:30:16,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 21:30:16,221 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:16,221 INFO L375 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] [2018-11-18 21:30:16,221 INFO L423 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:16,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:16,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2059369933, now seen corresponding path program 1 times [2018-11-18 21:30:16,222 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:16,222 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 [2018-11-18 21:30:16,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:16,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:16,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:16,428 INFO L256 TraceCheckUtils]: 0: Hoare triple {32559#true} call ULTIMATE.init(); {32559#true} is VALID [2018-11-18 21:30:16,429 INFO L273 TraceCheckUtils]: 1: Hoare triple {32559#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; {32559#true} is VALID [2018-11-18 21:30:16,429 INFO L273 TraceCheckUtils]: 2: Hoare triple {32559#true} assume true; {32559#true} is VALID [2018-11-18 21:30:16,429 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {32559#true} {32559#true} #1158#return; {32559#true} is VALID [2018-11-18 21:30:16,430 INFO L256 TraceCheckUtils]: 4: Hoare triple {32559#true} call #t~ret166 := main(); {32559#true} is VALID [2018-11-18 21:30:16,430 INFO L273 TraceCheckUtils]: 5: Hoare triple {32559#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; {32559#true} is VALID [2018-11-18 21:30:16,430 INFO L256 TraceCheckUtils]: 6: Hoare triple {32559#true} call _BLAST_init(); {32559#true} is VALID [2018-11-18 21:30:16,431 INFO L273 TraceCheckUtils]: 7: Hoare triple {32559#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; {32559#true} is VALID [2018-11-18 21:30:16,431 INFO L273 TraceCheckUtils]: 8: Hoare triple {32559#true} assume true; {32559#true} is VALID [2018-11-18 21:30:16,431 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {32559#true} {32559#true} #1066#return; {32559#true} is VALID [2018-11-18 21:30:16,431 INFO L273 TraceCheckUtils]: 10: Hoare triple {32559#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; {32559#true} is VALID [2018-11-18 21:30:16,432 INFO L273 TraceCheckUtils]: 11: Hoare triple {32559#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {32559#true} is VALID [2018-11-18 21:30:16,432 INFO L256 TraceCheckUtils]: 12: Hoare triple {32559#true} call stub_driver_init(); {32559#true} is VALID [2018-11-18 21:30:16,432 INFO L273 TraceCheckUtils]: 13: Hoare triple {32559#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {32559#true} is VALID [2018-11-18 21:30:16,432 INFO L273 TraceCheckUtils]: 14: Hoare triple {32559#true} assume true; {32559#true} is VALID [2018-11-18 21:30:16,432 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {32559#true} {32559#true} #1068#return; {32559#true} is VALID [2018-11-18 21:30:16,433 INFO L273 TraceCheckUtils]: 16: Hoare triple {32559#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {32559#true} is VALID [2018-11-18 21:30:16,433 INFO L273 TraceCheckUtils]: 17: Hoare triple {32559#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {32559#true} is VALID [2018-11-18 21:30:16,433 INFO L273 TraceCheckUtils]: 18: Hoare triple {32559#true} assume 1bv32 == ~tmp_ndt_2~0; {32559#true} is VALID [2018-11-18 21:30:16,433 INFO L256 TraceCheckUtils]: 19: Hoare triple {32559#true} call #t~ret94 := FloppyCreateClose(~devobj~0, ~pirp~0); {32559#true} is VALID [2018-11-18 21:30:16,434 INFO L273 TraceCheckUtils]: 20: Hoare triple {32559#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; {32559#true} is VALID [2018-11-18 21:30:16,434 INFO L256 TraceCheckUtils]: 21: Hoare triple {32559#true} call IofCompleteRequest(~Irp, 0bv32); {32559#true} is VALID [2018-11-18 21:30:16,434 INFO L273 TraceCheckUtils]: 22: Hoare triple {32559#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {32559#true} is VALID [2018-11-18 21:30:16,434 INFO L273 TraceCheckUtils]: 23: Hoare triple {32559#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {32559#true} is VALID [2018-11-18 21:30:16,434 INFO L273 TraceCheckUtils]: 24: Hoare triple {32559#true} assume true; {32559#true} is VALID [2018-11-18 21:30:16,435 INFO L268 TraceCheckUtils]: 25: Hoare quadruple {32559#true} {32559#true} #1086#return; {32559#true} is VALID [2018-11-18 21:30:16,450 INFO L273 TraceCheckUtils]: 26: Hoare triple {32559#true} #res := 0bv32; {32642#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-18 21:30:16,465 INFO L273 TraceCheckUtils]: 27: Hoare triple {32642#(= (_ bv0 32) |FloppyCreateClose_#res|)} assume true; {32642#(= (_ bv0 32) |FloppyCreateClose_#res|)} is VALID [2018-11-18 21:30:16,471 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {32642#(= (_ bv0 32) |FloppyCreateClose_#res|)} {32559#true} #1072#return; {32649#(= |main_#t~ret94| (_ bv0 32))} is VALID [2018-11-18 21:30:16,472 INFO L273 TraceCheckUtils]: 29: Hoare triple {32649#(= |main_#t~ret94| (_ bv0 32))} ~status~1 := #t~ret94;havoc #t~ret94; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,473 INFO L273 TraceCheckUtils]: 30: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,473 INFO L273 TraceCheckUtils]: 31: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,479 INFO L273 TraceCheckUtils]: 32: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,480 INFO L273 TraceCheckUtils]: 33: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume 4294967295bv32 != ~status~1; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,482 INFO L273 TraceCheckUtils]: 34: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,483 INFO L273 TraceCheckUtils]: 35: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume ~s~0 != ~IPC~0; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,483 INFO L273 TraceCheckUtils]: 36: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume !(~s~0 != ~DC~0); {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,487 INFO L273 TraceCheckUtils]: 37: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume !(1bv32 == ~pended~0); {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,487 INFO L273 TraceCheckUtils]: 38: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume ~s~0 == ~DC~0; {32653#(= main_~status~1 (_ bv0 32))} is VALID [2018-11-18 21:30:16,489 INFO L273 TraceCheckUtils]: 39: Hoare triple {32653#(= main_~status~1 (_ bv0 32))} assume 259bv32 == ~status~1; {32560#false} is VALID [2018-11-18 21:30:16,489 INFO L256 TraceCheckUtils]: 40: Hoare triple {32560#false} call errorFn(); {32560#false} is VALID [2018-11-18 21:30:16,489 INFO L273 TraceCheckUtils]: 41: Hoare triple {32560#false} assume !false; {32560#false} is VALID [2018-11-18 21:30:16,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:16,490 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:16,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:16,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:30:16,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-18 21:30:16,493 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:16,493 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:30:16,536 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:16,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:30:16,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:30:16,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:30:16,537 INFO L87 Difference]: Start difference. First operand 815 states and 1096 transitions. Second operand 5 states. [2018-11-18 21:30:21,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:21,802 INFO L93 Difference]: Finished difference Result 828 states and 1108 transitions. [2018-11-18 21:30:21,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:30:21,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2018-11-18 21:30:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:21,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:21,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 507 transitions. [2018-11-18 21:30:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 507 transitions. [2018-11-18 21:30:21,813 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 507 transitions. [2018-11-18 21:30:22,415 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 507 edges. 507 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:22,461 INFO L225 Difference]: With dead ends: 828 [2018-11-18 21:30:22,461 INFO L226 Difference]: Without dead ends: 808 [2018-11-18 21:30:22,462 INFO L604 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 [2018-11-18 21:30:22,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2018-11-18 21:30:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2018-11-18 21:30:26,183 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:26,183 INFO L82 GeneralOperation]: Start isEquivalent. First operand 808 states. Second operand 808 states. [2018-11-18 21:30:26,183 INFO L74 IsIncluded]: Start isIncluded. First operand 808 states. Second operand 808 states. [2018-11-18 21:30:26,183 INFO L87 Difference]: Start difference. First operand 808 states. Second operand 808 states. [2018-11-18 21:30:26,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:26,212 INFO L93 Difference]: Finished difference Result 808 states and 1087 transitions. [2018-11-18 21:30:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1087 transitions. [2018-11-18 21:30:26,214 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:26,214 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:26,214 INFO L74 IsIncluded]: Start isIncluded. First operand 808 states. Second operand 808 states. [2018-11-18 21:30:26,214 INFO L87 Difference]: Start difference. First operand 808 states. Second operand 808 states. [2018-11-18 21:30:26,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:26,240 INFO L93 Difference]: Finished difference Result 808 states and 1087 transitions. [2018-11-18 21:30:26,240 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1087 transitions. [2018-11-18 21:30:26,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:26,241 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:26,241 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:26,242 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:26,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 808 states. [2018-11-18 21:30:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1087 transitions. [2018-11-18 21:30:26,272 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1087 transitions. Word has length 42 [2018-11-18 21:30:26,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:26,273 INFO L480 AbstractCegarLoop]: Abstraction has 808 states and 1087 transitions. [2018-11-18 21:30:26,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:30:26,273 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1087 transitions. [2018-11-18 21:30:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 21:30:26,273 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:26,274 INFO L375 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] [2018-11-18 21:30:26,274 INFO L423 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:26,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1192219836, now seen corresponding path program 1 times [2018-11-18 21:30:26,275 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:26,275 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 [2018-11-18 21:30:26,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:26,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:26,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:26,512 INFO L256 TraceCheckUtils]: 0: Hoare triple {36518#true} call ULTIMATE.init(); {36518#true} is VALID [2018-11-18 21:30:26,513 INFO L273 TraceCheckUtils]: 1: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,513 INFO L273 TraceCheckUtils]: 2: Hoare triple {36518#true} assume true; {36518#true} is VALID [2018-11-18 21:30:26,513 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {36518#true} {36518#true} #1158#return; {36518#true} is VALID [2018-11-18 21:30:26,514 INFO L256 TraceCheckUtils]: 4: Hoare triple {36518#true} call #t~ret166 := main(); {36518#true} is VALID [2018-11-18 21:30:26,514 INFO L273 TraceCheckUtils]: 5: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,514 INFO L256 TraceCheckUtils]: 6: Hoare triple {36518#true} call _BLAST_init(); {36518#true} is VALID [2018-11-18 21:30:26,514 INFO L273 TraceCheckUtils]: 7: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L273 TraceCheckUtils]: 8: Hoare triple {36518#true} assume true; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {36518#true} {36518#true} #1066#return; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L273 TraceCheckUtils]: 10: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L273 TraceCheckUtils]: 11: Hoare triple {36518#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L256 TraceCheckUtils]: 12: Hoare triple {36518#true} call stub_driver_init(); {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L273 TraceCheckUtils]: 13: Hoare triple {36518#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {36518#true} is VALID [2018-11-18 21:30:26,515 INFO L273 TraceCheckUtils]: 14: Hoare triple {36518#true} assume true; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {36518#true} {36518#true} #1068#return; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L273 TraceCheckUtils]: 16: Hoare triple {36518#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L273 TraceCheckUtils]: 17: Hoare triple {36518#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L273 TraceCheckUtils]: 18: Hoare triple {36518#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L273 TraceCheckUtils]: 19: Hoare triple {36518#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L273 TraceCheckUtils]: 20: Hoare triple {36518#true} assume 3bv32 == ~tmp_ndt_4~0; {36518#true} is VALID [2018-11-18 21:30:26,516 INFO L256 TraceCheckUtils]: 21: Hoare triple {36518#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {36518#true} is VALID [2018-11-18 21:30:26,517 INFO L273 TraceCheckUtils]: 22: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,517 INFO L273 TraceCheckUtils]: 23: Hoare triple {36518#true} assume !(1bv32 == ~PagingReferenceCount~0); {36518#true} is VALID [2018-11-18 21:30:26,517 INFO L273 TraceCheckUtils]: 24: Hoare triple {36518#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {36518#true} is VALID [2018-11-18 21:30:26,517 INFO L273 TraceCheckUtils]: 25: Hoare triple {36518#true} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {36518#true} is VALID [2018-11-18 21:30:26,517 INFO L273 TraceCheckUtils]: 26: Hoare triple {36518#true} assume !(0bv32 == ~irpSp__MinorFunction~0); {36518#true} is VALID [2018-11-18 21:30:26,518 INFO L273 TraceCheckUtils]: 27: Hoare triple {36518#true} assume 5bv32 == ~irpSp__MinorFunction~0; {36518#true} is VALID [2018-11-18 21:30:26,518 INFO L273 TraceCheckUtils]: 28: Hoare triple {36518#true} assume 5bv32 == ~irpSp__MinorFunction~0; {36518#true} is VALID [2018-11-18 21:30:26,518 INFO L273 TraceCheckUtils]: 29: Hoare triple {36518#true} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {36518#true} is VALID [2018-11-18 21:30:26,518 INFO L256 TraceCheckUtils]: 30: Hoare triple {36518#true} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {36518#true} is VALID [2018-11-18 21:30:26,518 INFO L273 TraceCheckUtils]: 31: Hoare triple {36518#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; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L273 TraceCheckUtils]: 32: Hoare triple {36518#true} assume 1bv32 == ~DisketteExtension__PoweringDown~0;~myStatus~0 := 3221226195bv32;~Irp__IoStatus__Status~0 := 3221226195bv32;~Irp__IoStatus__Information~0 := 0bv32;#res := 3221226195bv32; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L273 TraceCheckUtils]: 33: Hoare triple {36518#true} assume true; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L268 TraceCheckUtils]: 34: Hoare quadruple {36518#true} {36518#true} #1026#return; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L273 TraceCheckUtils]: 35: Hoare triple {36518#true} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L273 TraceCheckUtils]: 36: Hoare triple {36518#true} assume 259bv32 == ~__cil_tmp29~0; {36518#true} is VALID [2018-11-18 21:30:26,519 INFO L256 TraceCheckUtils]: 37: Hoare triple {36518#true} call #t~ret32 := KeWaitForSingleObject(~disketteExtension__FloppyThread~0, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {36518#true} is VALID [2018-11-18 21:30:26,520 INFO L273 TraceCheckUtils]: 38: Hoare triple {36518#true} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {36518#true} is VALID [2018-11-18 21:30:26,530 INFO L273 TraceCheckUtils]: 39: Hoare triple {36518#true} assume !(~s~0 == ~MPR3~0); {36640#(not (= ~MPR3~0 ~s~0))} is VALID [2018-11-18 21:30:26,532 INFO L273 TraceCheckUtils]: 40: Hoare triple {36640#(not (= ~MPR3~0 ~s~0))} assume !(1bv32 == ~customIrp~0); {36640#(not (= ~MPR3~0 ~s~0))} is VALID [2018-11-18 21:30:26,532 INFO L273 TraceCheckUtils]: 41: Hoare triple {36640#(not (= ~MPR3~0 ~s~0))} assume ~s~0 == ~MPR3~0; {36519#false} is VALID [2018-11-18 21:30:26,532 INFO L256 TraceCheckUtils]: 42: Hoare triple {36519#false} call errorFn(); {36519#false} is VALID [2018-11-18 21:30:26,532 INFO L273 TraceCheckUtils]: 43: Hoare triple {36519#false} assume !false; {36519#false} is VALID [2018-11-18 21:30:26,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:26,533 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:26,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:26,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:30:26,536 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-11-18 21:30:26,536 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:26,537 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:30:26,589 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:26,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:30:26,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:30:26,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:30:26,591 INFO L87 Difference]: Start difference. First operand 808 states and 1087 transitions. Second operand 3 states. [2018-11-18 21:30:30,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:30,683 INFO L93 Difference]: Finished difference Result 1192 states and 1617 transitions. [2018-11-18 21:30:30,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:30:30,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2018-11-18 21:30:30,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:30:30,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 655 transitions. [2018-11-18 21:30:30,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:30:30,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 655 transitions. [2018-11-18 21:30:30,691 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 655 transitions. [2018-11-18 21:30:31,848 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 655 edges. 655 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:31,932 INFO L225 Difference]: With dead ends: 1192 [2018-11-18 21:30:31,932 INFO L226 Difference]: Without dead ends: 1189 [2018-11-18 21:30:31,934 INFO L604 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 [2018-11-18 21:30:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2018-11-18 21:30:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 933. [2018-11-18 21:30:36,559 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:36,559 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1189 states. Second operand 933 states. [2018-11-18 21:30:36,559 INFO L74 IsIncluded]: Start isIncluded. First operand 1189 states. Second operand 933 states. [2018-11-18 21:30:36,560 INFO L87 Difference]: Start difference. First operand 1189 states. Second operand 933 states. [2018-11-18 21:30:36,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:36,613 INFO L93 Difference]: Finished difference Result 1189 states and 1610 transitions. [2018-11-18 21:30:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1610 transitions. [2018-11-18 21:30:36,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:36,616 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:36,616 INFO L74 IsIncluded]: Start isIncluded. First operand 933 states. Second operand 1189 states. [2018-11-18 21:30:36,616 INFO L87 Difference]: Start difference. First operand 933 states. Second operand 1189 states. [2018-11-18 21:30:36,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:36,664 INFO L93 Difference]: Finished difference Result 1189 states and 1610 transitions. [2018-11-18 21:30:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1189 states and 1610 transitions. [2018-11-18 21:30:36,667 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:36,667 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:36,667 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:36,667 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:36,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-11-18 21:30:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1258 transitions. [2018-11-18 21:30:36,706 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1258 transitions. Word has length 44 [2018-11-18 21:30:36,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:36,707 INFO L480 AbstractCegarLoop]: Abstraction has 933 states and 1258 transitions. [2018-11-18 21:30:36,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:30:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1258 transitions. [2018-11-18 21:30:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-18 21:30:36,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:36,708 INFO L375 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] [2018-11-18 21:30:36,709 INFO L423 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:36,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:36,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1319762688, now seen corresponding path program 1 times [2018-11-18 21:30:36,709 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:36,709 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 [2018-11-18 21:30:36,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:36,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:36,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:36,940 INFO L256 TraceCheckUtils]: 0: Hoare triple {41926#true} call ULTIMATE.init(); {41926#true} is VALID [2018-11-18 21:30:36,940 INFO L273 TraceCheckUtils]: 1: Hoare triple {41926#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; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L273 TraceCheckUtils]: 2: Hoare triple {41926#true} assume true; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {41926#true} {41926#true} #1158#return; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L256 TraceCheckUtils]: 4: Hoare triple {41926#true} call #t~ret166 := main(); {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L273 TraceCheckUtils]: 5: Hoare triple {41926#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; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L256 TraceCheckUtils]: 6: Hoare triple {41926#true} call _BLAST_init(); {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L273 TraceCheckUtils]: 7: Hoare triple {41926#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; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L273 TraceCheckUtils]: 8: Hoare triple {41926#true} assume true; {41926#true} is VALID [2018-11-18 21:30:36,941 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {41926#true} {41926#true} #1066#return; {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L273 TraceCheckUtils]: 10: Hoare triple {41926#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; {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L273 TraceCheckUtils]: 11: Hoare triple {41926#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L256 TraceCheckUtils]: 12: Hoare triple {41926#true} call stub_driver_init(); {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L273 TraceCheckUtils]: 13: Hoare triple {41926#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L273 TraceCheckUtils]: 14: Hoare triple {41926#true} assume true; {41926#true} is VALID [2018-11-18 21:30:36,942 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {41926#true} {41926#true} #1068#return; {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L273 TraceCheckUtils]: 16: Hoare triple {41926#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L273 TraceCheckUtils]: 17: Hoare triple {41926#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L273 TraceCheckUtils]: 18: Hoare triple {41926#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L273 TraceCheckUtils]: 19: Hoare triple {41926#true} assume 2bv32 == ~tmp_ndt_3~0; {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L256 TraceCheckUtils]: 20: Hoare triple {41926#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {41926#true} is VALID [2018-11-18 21:30:36,943 INFO L273 TraceCheckUtils]: 21: Hoare triple {41926#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; {41926#true} is VALID [2018-11-18 21:30:36,944 INFO L273 TraceCheckUtils]: 22: Hoare triple {41926#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {41926#true} is VALID [2018-11-18 21:30:36,944 INFO L273 TraceCheckUtils]: 23: Hoare triple {41926#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {41926#true} is VALID [2018-11-18 21:30:36,944 INFO L273 TraceCheckUtils]: 24: Hoare triple {41926#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {41926#true} is VALID [2018-11-18 21:30:36,944 INFO L273 TraceCheckUtils]: 25: Hoare triple {41926#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {41926#true} is VALID [2018-11-18 21:30:36,954 INFO L273 TraceCheckUtils]: 26: Hoare triple {41926#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~ntStatus~3 := 3221225485bv32; {42009#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:30:36,954 INFO L273 TraceCheckUtils]: 27: Hoare triple {42009#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {42013#(= (_ bv3221225485 32) FloppyDeviceControl_~__cil_tmp91~0)} is VALID [2018-11-18 21:30:36,956 INFO L273 TraceCheckUtils]: 28: Hoare triple {42013#(= (_ bv3221225485 32) FloppyDeviceControl_~__cil_tmp91~0)} assume !(259bv32 != ~__cil_tmp91~0); {41927#false} is VALID [2018-11-18 21:30:36,956 INFO L273 TraceCheckUtils]: 29: Hoare triple {41927#false} #res := ~ntStatus~3; {41927#false} is VALID [2018-11-18 21:30:36,956 INFO L273 TraceCheckUtils]: 30: Hoare triple {41927#false} assume true; {41927#false} is VALID [2018-11-18 21:30:36,956 INFO L268 TraceCheckUtils]: 31: Hoare quadruple {41927#false} {41926#true} #1074#return; {41927#false} is VALID [2018-11-18 21:30:36,956 INFO L273 TraceCheckUtils]: 32: Hoare triple {41927#false} ~status~1 := #t~ret95;havoc #t~ret95; {41927#false} is VALID [2018-11-18 21:30:36,956 INFO L273 TraceCheckUtils]: 33: Hoare triple {41927#false} assume !(1bv32 == ~pended~0); {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 34: Hoare triple {41927#false} assume !(1bv32 == ~pended~0); {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 35: Hoare triple {41927#false} assume ~s~0 != ~UNLOADED~0; {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 36: Hoare triple {41927#false} assume 4294967295bv32 != ~status~1; {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 37: Hoare triple {41927#false} assume ~s~0 != ~SKIP2~0; {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 38: Hoare triple {41927#false} assume ~s~0 != ~IPC~0; {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 39: Hoare triple {41927#false} assume ~s~0 != ~DC~0; {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L256 TraceCheckUtils]: 40: Hoare triple {41927#false} call errorFn(); {41927#false} is VALID [2018-11-18 21:30:36,957 INFO L273 TraceCheckUtils]: 41: Hoare triple {41927#false} assume !false; {41927#false} is VALID [2018-11-18 21:30:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:36,958 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:36,960 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:36,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 21:30:36,961 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-18 21:30:36,961 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:36,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 21:30:37,009 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:37,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 21:30:37,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 21:30:37,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 21:30:37,011 INFO L87 Difference]: Start difference. First operand 933 states and 1258 transitions. Second operand 4 states. [2018-11-18 21:30:40,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:40,994 INFO L93 Difference]: Finished difference Result 961 states and 1291 transitions. [2018-11-18 21:30:40,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:30:40,994 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-18 21:30:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:40,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:30:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:30:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:30:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:30:41,001 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 517 transitions. [2018-11-18 21:30:41,538 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 517 edges. 517 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:41,581 INFO L225 Difference]: With dead ends: 961 [2018-11-18 21:30:41,582 INFO L226 Difference]: Without dead ends: 939 [2018-11-18 21:30:41,582 INFO L604 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 [2018-11-18 21:30:41,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-11-18 21:30:44,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 935. [2018-11-18 21:30:44,705 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:44,705 INFO L82 GeneralOperation]: Start isEquivalent. First operand 939 states. Second operand 935 states. [2018-11-18 21:30:44,705 INFO L74 IsIncluded]: Start isIncluded. First operand 939 states. Second operand 935 states. [2018-11-18 21:30:44,706 INFO L87 Difference]: Start difference. First operand 939 states. Second operand 935 states. [2018-11-18 21:30:44,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:44,746 INFO L93 Difference]: Finished difference Result 939 states and 1265 transitions. [2018-11-18 21:30:44,746 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1265 transitions. [2018-11-18 21:30:44,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:44,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:44,748 INFO L74 IsIncluded]: Start isIncluded. First operand 935 states. Second operand 939 states. [2018-11-18 21:30:44,748 INFO L87 Difference]: Start difference. First operand 935 states. Second operand 939 states. [2018-11-18 21:30:44,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:44,800 INFO L93 Difference]: Finished difference Result 939 states and 1265 transitions. [2018-11-18 21:30:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1265 transitions. [2018-11-18 21:30:44,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:44,803 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:44,803 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:44,803 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2018-11-18 21:30:44,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1260 transitions. [2018-11-18 21:30:44,852 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1260 transitions. Word has length 42 [2018-11-18 21:30:44,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:44,852 INFO L480 AbstractCegarLoop]: Abstraction has 935 states and 1260 transitions. [2018-11-18 21:30:44,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 21:30:44,852 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1260 transitions. [2018-11-18 21:30:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 21:30:44,853 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:44,853 INFO L375 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] [2018-11-18 21:30:44,853 INFO L423 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:44,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:44,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1457830261, now seen corresponding path program 1 times [2018-11-18 21:30:44,854 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:44,854 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 [2018-11-18 21:30:44,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:45,008 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:45,069 INFO L256 TraceCheckUtils]: 0: Hoare triple {46507#true} call ULTIMATE.init(); {46507#true} is VALID [2018-11-18 21:30:45,069 INFO L273 TraceCheckUtils]: 1: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,070 INFO L273 TraceCheckUtils]: 2: Hoare triple {46507#true} assume true; {46507#true} is VALID [2018-11-18 21:30:45,070 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {46507#true} {46507#true} #1158#return; {46507#true} is VALID [2018-11-18 21:30:45,070 INFO L256 TraceCheckUtils]: 4: Hoare triple {46507#true} call #t~ret166 := main(); {46507#true} is VALID [2018-11-18 21:30:45,070 INFO L273 TraceCheckUtils]: 5: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,071 INFO L256 TraceCheckUtils]: 6: Hoare triple {46507#true} call _BLAST_init(); {46507#true} is VALID [2018-11-18 21:30:45,071 INFO L273 TraceCheckUtils]: 7: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,071 INFO L273 TraceCheckUtils]: 8: Hoare triple {46507#true} assume true; {46507#true} is VALID [2018-11-18 21:30:45,071 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {46507#true} {46507#true} #1066#return; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L273 TraceCheckUtils]: 10: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L273 TraceCheckUtils]: 11: Hoare triple {46507#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L256 TraceCheckUtils]: 12: Hoare triple {46507#true} call stub_driver_init(); {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L273 TraceCheckUtils]: 13: Hoare triple {46507#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L273 TraceCheckUtils]: 14: Hoare triple {46507#true} assume true; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {46507#true} {46507#true} #1068#return; {46507#true} is VALID [2018-11-18 21:30:45,072 INFO L273 TraceCheckUtils]: 16: Hoare triple {46507#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 17: Hoare triple {46507#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 18: Hoare triple {46507#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 19: Hoare triple {46507#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 20: Hoare triple {46507#true} assume 3bv32 == ~tmp_ndt_4~0; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L256 TraceCheckUtils]: 21: Hoare triple {46507#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 22: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,073 INFO L273 TraceCheckUtils]: 23: Hoare triple {46507#true} assume !(1bv32 == ~PagingReferenceCount~0); {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 24: Hoare triple {46507#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 25: Hoare triple {46507#true} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 26: Hoare triple {46507#true} assume !(0bv32 == ~irpSp__MinorFunction~0); {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 27: Hoare triple {46507#true} assume 5bv32 == ~irpSp__MinorFunction~0; {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 28: Hoare triple {46507#true} assume 5bv32 == ~irpSp__MinorFunction~0; {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 29: Hoare triple {46507#true} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L256 TraceCheckUtils]: 30: Hoare triple {46507#true} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {46507#true} is VALID [2018-11-18 21:30:45,074 INFO L273 TraceCheckUtils]: 31: Hoare triple {46507#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; {46507#true} is VALID [2018-11-18 21:30:45,075 INFO L273 TraceCheckUtils]: 32: Hoare triple {46507#true} assume 1bv32 == ~DisketteExtension__PoweringDown~0;~myStatus~0 := 3221226195bv32;~Irp__IoStatus__Status~0 := 3221226195bv32;~Irp__IoStatus__Information~0 := 0bv32;#res := 3221226195bv32; {46608#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} is VALID [2018-11-18 21:30:45,075 INFO L273 TraceCheckUtils]: 33: Hoare triple {46608#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} assume true; {46608#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} is VALID [2018-11-18 21:30:45,077 INFO L268 TraceCheckUtils]: 34: Hoare quadruple {46608#(= (_ bv3221226195 32) |FlQueueIrpToThread_#res|)} {46507#true} #1026#return; {46615#(= (_ bv3221226195 32) |FloppyPnp_#t~ret31|)} is VALID [2018-11-18 21:30:45,077 INFO L273 TraceCheckUtils]: 35: Hoare triple {46615#(= (_ bv3221226195 32) |FloppyPnp_#t~ret31|)} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {46619#(= (bvadd FloppyPnp_~__cil_tmp29~0 (_ bv1073741101 32)) (_ bv0 32))} is VALID [2018-11-18 21:30:45,079 INFO L273 TraceCheckUtils]: 36: Hoare triple {46619#(= (bvadd FloppyPnp_~__cil_tmp29~0 (_ bv1073741101 32)) (_ bv0 32))} assume 259bv32 == ~__cil_tmp29~0; {46508#false} is VALID [2018-11-18 21:30:45,079 INFO L256 TraceCheckUtils]: 37: Hoare triple {46508#false} call #t~ret32 := KeWaitForSingleObject(~disketteExtension__FloppyThread~0, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {46508#false} is VALID [2018-11-18 21:30:45,079 INFO L273 TraceCheckUtils]: 38: Hoare triple {46508#false} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {46508#false} is VALID [2018-11-18 21:30:45,079 INFO L273 TraceCheckUtils]: 39: Hoare triple {46508#false} assume ~s~0 == ~MPR3~0; {46508#false} is VALID [2018-11-18 21:30:45,079 INFO L273 TraceCheckUtils]: 40: Hoare triple {46508#false} assume !(1bv32 == ~setEventCalled~0); {46508#false} is VALID [2018-11-18 21:30:45,079 INFO L273 TraceCheckUtils]: 41: Hoare triple {46508#false} assume !(1bv32 == ~customIrp~0); {46508#false} is VALID [2018-11-18 21:30:45,080 INFO L273 TraceCheckUtils]: 42: Hoare triple {46508#false} assume ~s~0 == ~MPR3~0; {46508#false} is VALID [2018-11-18 21:30:45,080 INFO L256 TraceCheckUtils]: 43: Hoare triple {46508#false} call errorFn(); {46508#false} is VALID [2018-11-18 21:30:45,080 INFO L273 TraceCheckUtils]: 44: Hoare triple {46508#false} assume !false; {46508#false} is VALID [2018-11-18 21:30:45,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:45,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:45,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:45,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:30:45,083 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-18 21:30:45,083 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:45,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:30:45,133 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:45,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:30:45,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:30:45,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:30:45,134 INFO L87 Difference]: Start difference. First operand 935 states and 1260 transitions. Second operand 5 states. [2018-11-18 21:30:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:52,544 INFO L93 Difference]: Finished difference Result 1015 states and 1361 transitions. [2018-11-18 21:30:52,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:30:52,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-18 21:30:52,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:30:52,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:52,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2018-11-18 21:30:52,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:30:52,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 572 transitions. [2018-11-18 21:30:52,551 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 572 transitions. [2018-11-18 21:30:53,145 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 572 edges. 572 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:53,187 INFO L225 Difference]: With dead ends: 1015 [2018-11-18 21:30:53,187 INFO L226 Difference]: Without dead ends: 945 [2018-11-18 21:30:53,188 INFO L604 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 [2018-11-18 21:30:53,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2018-11-18 21:30:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2018-11-18 21:30:54,937 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:30:54,937 INFO L82 GeneralOperation]: Start isEquivalent. First operand 945 states. Second operand 939 states. [2018-11-18 21:30:54,937 INFO L74 IsIncluded]: Start isIncluded. First operand 945 states. Second operand 939 states. [2018-11-18 21:30:54,937 INFO L87 Difference]: Start difference. First operand 945 states. Second operand 939 states. [2018-11-18 21:30:54,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:54,977 INFO L93 Difference]: Finished difference Result 945 states and 1273 transitions. [2018-11-18 21:30:54,977 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1273 transitions. [2018-11-18 21:30:54,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:54,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:54,979 INFO L74 IsIncluded]: Start isIncluded. First operand 939 states. Second operand 945 states. [2018-11-18 21:30:54,979 INFO L87 Difference]: Start difference. First operand 939 states. Second operand 945 states. [2018-11-18 21:30:55,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:30:55,012 INFO L93 Difference]: Finished difference Result 945 states and 1273 transitions. [2018-11-18 21:30:55,012 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1273 transitions. [2018-11-18 21:30:55,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:30:55,014 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:30:55,014 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:30:55,014 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:30:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-11-18 21:30:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1265 transitions. [2018-11-18 21:30:55,077 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1265 transitions. Word has length 45 [2018-11-18 21:30:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:30:55,078 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1265 transitions. [2018-11-18 21:30:55,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:30:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1265 transitions. [2018-11-18 21:30:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 21:30:55,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:30:55,079 INFO L375 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] [2018-11-18 21:30:55,079 INFO L423 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:30:55,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:30:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1702886703, now seen corresponding path program 1 times [2018-11-18 21:30:55,080 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:30:55,080 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 [2018-11-18 21:30:55,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:30:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:30:55,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:30:55,309 INFO L256 TraceCheckUtils]: 0: Hoare triple {51183#true} call ULTIMATE.init(); {51183#true} is VALID [2018-11-18 21:30:55,309 INFO L273 TraceCheckUtils]: 1: Hoare triple {51183#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; {51183#true} is VALID [2018-11-18 21:30:55,309 INFO L273 TraceCheckUtils]: 2: Hoare triple {51183#true} assume true; {51183#true} is VALID [2018-11-18 21:30:55,310 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {51183#true} {51183#true} #1158#return; {51183#true} is VALID [2018-11-18 21:30:55,310 INFO L256 TraceCheckUtils]: 4: Hoare triple {51183#true} call #t~ret166 := main(); {51183#true} is VALID [2018-11-18 21:30:55,310 INFO L273 TraceCheckUtils]: 5: Hoare triple {51183#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; {51183#true} is VALID [2018-11-18 21:30:55,310 INFO L256 TraceCheckUtils]: 6: Hoare triple {51183#true} call _BLAST_init(); {51183#true} is VALID [2018-11-18 21:30:55,311 INFO L273 TraceCheckUtils]: 7: Hoare triple {51183#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; {51183#true} is VALID [2018-11-18 21:30:55,311 INFO L273 TraceCheckUtils]: 8: Hoare triple {51183#true} assume true; {51183#true} is VALID [2018-11-18 21:30:55,311 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {51183#true} {51183#true} #1066#return; {51183#true} is VALID [2018-11-18 21:30:55,311 INFO L273 TraceCheckUtils]: 10: Hoare triple {51183#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; {51183#true} is VALID [2018-11-18 21:30:55,311 INFO L273 TraceCheckUtils]: 11: Hoare triple {51183#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L256 TraceCheckUtils]: 12: Hoare triple {51183#true} call stub_driver_init(); {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 13: Hoare triple {51183#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 14: Hoare triple {51183#true} assume true; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {51183#true} {51183#true} #1068#return; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 16: Hoare triple {51183#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 17: Hoare triple {51183#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 18: Hoare triple {51183#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {51183#true} is VALID [2018-11-18 21:30:55,312 INFO L273 TraceCheckUtils]: 19: Hoare triple {51183#true} assume 2bv32 == ~tmp_ndt_3~0; {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L256 TraceCheckUtils]: 20: Hoare triple {51183#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 21: Hoare triple {51183#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; {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 22: Hoare triple {51183#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 23: Hoare triple {51183#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 24: Hoare triple {51183#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 25: Hoare triple {51183#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {51183#true} is VALID [2018-11-18 21:30:55,313 INFO L273 TraceCheckUtils]: 26: Hoare triple {51183#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); {51183#true} is VALID [2018-11-18 21:30:55,315 INFO L273 TraceCheckUtils]: 27: Hoare triple {51183#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~__cil_tmp82~0);~ntStatus~3 := 2147483653bv32;~Irp__IoStatus__Information~3 := ~sizeof__MOUNTDEV_NAME~0; {51269#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv2147483643 32)) (_ bv0 32))} is VALID [2018-11-18 21:30:55,315 INFO L273 TraceCheckUtils]: 28: Hoare triple {51269#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv2147483643 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {51273#(= (bvadd FloppyDeviceControl_~__cil_tmp91~0 (_ bv2147483643 32)) (_ bv0 32))} is VALID [2018-11-18 21:30:55,316 INFO L273 TraceCheckUtils]: 29: Hoare triple {51273#(= (bvadd FloppyDeviceControl_~__cil_tmp91~0 (_ bv2147483643 32)) (_ bv0 32))} assume !(259bv32 != ~__cil_tmp91~0); {51184#false} is VALID [2018-11-18 21:30:55,316 INFO L273 TraceCheckUtils]: 30: Hoare triple {51184#false} #res := ~ntStatus~3; {51184#false} is VALID [2018-11-18 21:30:55,316 INFO L273 TraceCheckUtils]: 31: Hoare triple {51184#false} assume true; {51184#false} is VALID [2018-11-18 21:30:55,316 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {51184#false} {51183#true} #1074#return; {51184#false} is VALID [2018-11-18 21:30:55,316 INFO L273 TraceCheckUtils]: 33: Hoare triple {51184#false} ~status~1 := #t~ret95;havoc #t~ret95; {51184#false} is VALID [2018-11-18 21:30:55,316 INFO L273 TraceCheckUtils]: 34: Hoare triple {51184#false} assume !(1bv32 == ~pended~0); {51184#false} is VALID [2018-11-18 21:30:55,317 INFO L273 TraceCheckUtils]: 35: Hoare triple {51184#false} assume !(1bv32 == ~pended~0); {51184#false} is VALID [2018-11-18 21:30:55,317 INFO L273 TraceCheckUtils]: 36: Hoare triple {51184#false} assume ~s~0 != ~UNLOADED~0; {51184#false} is VALID [2018-11-18 21:30:55,317 INFO L273 TraceCheckUtils]: 37: Hoare triple {51184#false} assume 4294967295bv32 != ~status~1; {51184#false} is VALID [2018-11-18 21:30:55,317 INFO L273 TraceCheckUtils]: 38: Hoare triple {51184#false} assume ~s~0 != ~SKIP2~0; {51184#false} is VALID [2018-11-18 21:30:55,318 INFO L273 TraceCheckUtils]: 39: Hoare triple {51184#false} assume ~s~0 != ~IPC~0; {51184#false} is VALID [2018-11-18 21:30:55,318 INFO L273 TraceCheckUtils]: 40: Hoare triple {51184#false} assume ~s~0 != ~DC~0; {51184#false} is VALID [2018-11-18 21:30:55,318 INFO L256 TraceCheckUtils]: 41: Hoare triple {51184#false} call errorFn(); {51184#false} is VALID [2018-11-18 21:30:55,319 INFO L273 TraceCheckUtils]: 42: Hoare triple {51184#false} assume !false; {51184#false} is VALID [2018-11-18 21:30:55,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:30:55,321 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:30:55,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:30:55,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 21:30:55,324 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-18 21:30:55,324 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:30:55,324 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 21:30:55,391 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:30:55,391 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 21:30:55,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 21:30:55,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 21:30:55,392 INFO L87 Difference]: Start difference. First operand 939 states and 1265 transitions. Second operand 4 states. [2018-11-18 21:31:01,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:01,046 INFO L93 Difference]: Finished difference Result 967 states and 1298 transitions. [2018-11-18 21:31:01,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:31:01,046 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-18 21:31:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:01,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:31:01,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:31:01,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:31:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:31:01,053 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 517 transitions. [2018-11-18 21:31:01,599 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 517 edges. 517 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:01,666 INFO L225 Difference]: With dead ends: 967 [2018-11-18 21:31:01,666 INFO L226 Difference]: Without dead ends: 945 [2018-11-18 21:31:01,667 INFO L604 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 [2018-11-18 21:31:01,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2018-11-18 21:31:07,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2018-11-18 21:31:07,170 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:07,171 INFO L82 GeneralOperation]: Start isEquivalent. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:07,171 INFO L74 IsIncluded]: Start isIncluded. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:07,171 INFO L87 Difference]: Start difference. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:07,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:07,213 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2018-11-18 21:31:07,213 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1272 transitions. [2018-11-18 21:31:07,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:07,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:07,215 INFO L74 IsIncluded]: Start isIncluded. First operand 939 states. Second operand 945 states. [2018-11-18 21:31:07,215 INFO L87 Difference]: Start difference. First operand 939 states. Second operand 945 states. [2018-11-18 21:31:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:07,255 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2018-11-18 21:31:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1272 transitions. [2018-11-18 21:31:07,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:07,257 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:07,258 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:07,258 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:07,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-11-18 21:31:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1265 transitions. [2018-11-18 21:31:07,296 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1265 transitions. Word has length 43 [2018-11-18 21:31:07,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:07,296 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1265 transitions. [2018-11-18 21:31:07,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 21:31:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1265 transitions. [2018-11-18 21:31:07,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-11-18 21:31:07,298 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:07,298 INFO L375 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] [2018-11-18 21:31:07,298 INFO L423 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:07,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1571012239, now seen corresponding path program 1 times [2018-11-18 21:31:07,299 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:07,299 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 [2018-11-18 21:31:07,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:07,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:07,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:07,513 INFO L256 TraceCheckUtils]: 0: Hoare triple {55790#true} call ULTIMATE.init(); {55790#true} is VALID [2018-11-18 21:31:07,513 INFO L273 TraceCheckUtils]: 1: Hoare triple {55790#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; {55790#true} is VALID [2018-11-18 21:31:07,513 INFO L273 TraceCheckUtils]: 2: Hoare triple {55790#true} assume true; {55790#true} is VALID [2018-11-18 21:31:07,514 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {55790#true} {55790#true} #1158#return; {55790#true} is VALID [2018-11-18 21:31:07,514 INFO L256 TraceCheckUtils]: 4: Hoare triple {55790#true} call #t~ret166 := main(); {55790#true} is VALID [2018-11-18 21:31:07,514 INFO L273 TraceCheckUtils]: 5: Hoare triple {55790#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; {55790#true} is VALID [2018-11-18 21:31:07,514 INFO L256 TraceCheckUtils]: 6: Hoare triple {55790#true} call _BLAST_init(); {55790#true} is VALID [2018-11-18 21:31:07,514 INFO L273 TraceCheckUtils]: 7: Hoare triple {55790#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; {55790#true} is VALID [2018-11-18 21:31:07,515 INFO L273 TraceCheckUtils]: 8: Hoare triple {55790#true} assume true; {55790#true} is VALID [2018-11-18 21:31:07,515 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {55790#true} {55790#true} #1066#return; {55790#true} is VALID [2018-11-18 21:31:07,515 INFO L273 TraceCheckUtils]: 10: Hoare triple {55790#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; {55790#true} is VALID [2018-11-18 21:31:07,515 INFO L273 TraceCheckUtils]: 11: Hoare triple {55790#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L256 TraceCheckUtils]: 12: Hoare triple {55790#true} call stub_driver_init(); {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L273 TraceCheckUtils]: 13: Hoare triple {55790#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L273 TraceCheckUtils]: 14: Hoare triple {55790#true} assume true; {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {55790#true} {55790#true} #1068#return; {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L273 TraceCheckUtils]: 16: Hoare triple {55790#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {55790#true} is VALID [2018-11-18 21:31:07,516 INFO L273 TraceCheckUtils]: 17: Hoare triple {55790#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 18: Hoare triple {55790#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 19: Hoare triple {55790#true} assume 2bv32 == ~tmp_ndt_3~0; {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L256 TraceCheckUtils]: 20: Hoare triple {55790#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 21: Hoare triple {55790#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; {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 22: Hoare triple {55790#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 23: Hoare triple {55790#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 24: Hoare triple {55790#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {55790#true} is VALID [2018-11-18 21:31:07,517 INFO L273 TraceCheckUtils]: 25: Hoare triple {55790#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {55790#true} is VALID [2018-11-18 21:31:07,518 INFO L273 TraceCheckUtils]: 26: Hoare triple {55790#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); {55790#true} is VALID [2018-11-18 21:31:07,518 INFO L273 TraceCheckUtils]: 27: Hoare triple {55790#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); {55876#(= FloppyDeviceControl_~ntStatus~3 (_ bv0 32))} is VALID [2018-11-18 21:31:07,518 INFO L273 TraceCheckUtils]: 28: Hoare triple {55876#(= FloppyDeviceControl_~ntStatus~3 (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {55880#(= FloppyDeviceControl_~__cil_tmp91~0 (_ bv0 32))} is VALID [2018-11-18 21:31:07,519 INFO L273 TraceCheckUtils]: 29: Hoare triple {55880#(= FloppyDeviceControl_~__cil_tmp91~0 (_ bv0 32))} assume !(259bv32 != ~__cil_tmp91~0); {55791#false} is VALID [2018-11-18 21:31:07,519 INFO L273 TraceCheckUtils]: 30: Hoare triple {55791#false} #res := ~ntStatus~3; {55791#false} is VALID [2018-11-18 21:31:07,519 INFO L273 TraceCheckUtils]: 31: Hoare triple {55791#false} assume true; {55791#false} is VALID [2018-11-18 21:31:07,519 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {55791#false} {55790#true} #1074#return; {55791#false} is VALID [2018-11-18 21:31:07,519 INFO L273 TraceCheckUtils]: 33: Hoare triple {55791#false} ~status~1 := #t~ret95;havoc #t~ret95; {55791#false} is VALID [2018-11-18 21:31:07,519 INFO L273 TraceCheckUtils]: 34: Hoare triple {55791#false} assume !(1bv32 == ~pended~0); {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 35: Hoare triple {55791#false} assume !(1bv32 == ~pended~0); {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 36: Hoare triple {55791#false} assume ~s~0 != ~UNLOADED~0; {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 37: Hoare triple {55791#false} assume 4294967295bv32 != ~status~1; {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 38: Hoare triple {55791#false} assume ~s~0 != ~SKIP2~0; {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 39: Hoare triple {55791#false} assume ~s~0 != ~IPC~0; {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 40: Hoare triple {55791#false} assume ~s~0 != ~DC~0; {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L256 TraceCheckUtils]: 41: Hoare triple {55791#false} call errorFn(); {55791#false} is VALID [2018-11-18 21:31:07,520 INFO L273 TraceCheckUtils]: 42: Hoare triple {55791#false} assume !false; {55791#false} is VALID [2018-11-18 21:31:07,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:07,521 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:07,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:07,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 21:31:07,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-18 21:31:07,524 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:07,525 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 21:31:07,586 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:07,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 21:31:07,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 21:31:07,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 21:31:07,587 INFO L87 Difference]: Start difference. First operand 939 states and 1265 transitions. Second operand 4 states. [2018-11-18 21:31:11,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:11,095 INFO L93 Difference]: Finished difference Result 967 states and 1298 transitions. [2018-11-18 21:31:11,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:31:11,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-11-18 21:31:11,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:11,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:31:11,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:31:11,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 21:31:11,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 517 transitions. [2018-11-18 21:31:11,113 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 517 transitions. [2018-11-18 21:31:11,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 517 edges. 517 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:11,716 INFO L225 Difference]: With dead ends: 967 [2018-11-18 21:31:11,716 INFO L226 Difference]: Without dead ends: 945 [2018-11-18 21:31:11,717 INFO L604 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 [2018-11-18 21:31:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2018-11-18 21:31:15,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 939. [2018-11-18 21:31:15,693 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:15,693 INFO L82 GeneralOperation]: Start isEquivalent. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:15,693 INFO L74 IsIncluded]: Start isIncluded. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:15,693 INFO L87 Difference]: Start difference. First operand 945 states. Second operand 939 states. [2018-11-18 21:31:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:15,748 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2018-11-18 21:31:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1272 transitions. [2018-11-18 21:31:15,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:15,750 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:15,750 INFO L74 IsIncluded]: Start isIncluded. First operand 939 states. Second operand 945 states. [2018-11-18 21:31:15,750 INFO L87 Difference]: Start difference. First operand 939 states. Second operand 945 states. [2018-11-18 21:31:15,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:15,808 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2018-11-18 21:31:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1272 transitions. [2018-11-18 21:31:15,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:15,811 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:15,811 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:15,811 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:15,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 939 states. [2018-11-18 21:31:15,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1265 transitions. [2018-11-18 21:31:15,890 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1265 transitions. Word has length 43 [2018-11-18 21:31:15,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:15,890 INFO L480 AbstractCegarLoop]: Abstraction has 939 states and 1265 transitions. [2018-11-18 21:31:15,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 21:31:15,891 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1265 transitions. [2018-11-18 21:31:15,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-18 21:31:15,892 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:15,892 INFO L375 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] [2018-11-18 21:31:15,893 INFO L423 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:15,893 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:15,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1593769136, now seen corresponding path program 1 times [2018-11-18 21:31:15,893 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:15,894 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 [2018-11-18 21:31:15,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:16,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:16,087 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:16,333 INFO L256 TraceCheckUtils]: 0: Hoare triple {60397#true} call ULTIMATE.init(); {60397#true} is VALID [2018-11-18 21:31:16,333 INFO L273 TraceCheckUtils]: 1: Hoare triple {60397#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; {60397#true} is VALID [2018-11-18 21:31:16,334 INFO L273 TraceCheckUtils]: 2: Hoare triple {60397#true} assume true; {60397#true} is VALID [2018-11-18 21:31:16,334 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {60397#true} {60397#true} #1158#return; {60397#true} is VALID [2018-11-18 21:31:16,334 INFO L256 TraceCheckUtils]: 4: Hoare triple {60397#true} call #t~ret166 := main(); {60397#true} is VALID [2018-11-18 21:31:16,334 INFO L273 TraceCheckUtils]: 5: Hoare triple {60397#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; {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L256 TraceCheckUtils]: 6: Hoare triple {60397#true} call _BLAST_init(); {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L273 TraceCheckUtils]: 7: Hoare triple {60397#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; {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L273 TraceCheckUtils]: 8: Hoare triple {60397#true} assume true; {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {60397#true} {60397#true} #1066#return; {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L273 TraceCheckUtils]: 10: Hoare triple {60397#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; {60397#true} is VALID [2018-11-18 21:31:16,335 INFO L273 TraceCheckUtils]: 11: Hoare triple {60397#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L256 TraceCheckUtils]: 12: Hoare triple {60397#true} call stub_driver_init(); {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 13: Hoare triple {60397#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 14: Hoare triple {60397#true} assume true; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {60397#true} {60397#true} #1068#return; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 16: Hoare triple {60397#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 17: Hoare triple {60397#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 18: Hoare triple {60397#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L273 TraceCheckUtils]: 19: Hoare triple {60397#true} assume 2bv32 == ~tmp_ndt_3~0; {60397#true} is VALID [2018-11-18 21:31:16,336 INFO L256 TraceCheckUtils]: 20: Hoare triple {60397#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 21: Hoare triple {60397#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; {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 22: Hoare triple {60397#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 23: Hoare triple {60397#true} assume 0bv32 != ~disketteExtension__IsRemoved~1;~Irp__IoStatus__Information~3 := 0bv32;~Irp__IoStatus__Status___0~0 := 3221225558bv32;~myStatus~0 := 3221225558bv32; {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L256 TraceCheckUtils]: 24: Hoare triple {60397#true} call IofCompleteRequest(~Irp, 0bv32); {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 25: Hoare triple {60397#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 26: Hoare triple {60397#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {60397#true} is VALID [2018-11-18 21:31:16,337 INFO L273 TraceCheckUtils]: 27: Hoare triple {60397#true} assume true; {60397#true} is VALID [2018-11-18 21:31:16,338 INFO L268 TraceCheckUtils]: 28: Hoare quadruple {60397#true} {60397#true} #1132#return; {60397#true} is VALID [2018-11-18 21:31:16,338 INFO L273 TraceCheckUtils]: 29: Hoare triple {60397#true} #res := 3221225558bv32; {60489#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,338 INFO L273 TraceCheckUtils]: 30: Hoare triple {60489#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} assume true; {60489#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,339 INFO L268 TraceCheckUtils]: 31: Hoare quadruple {60489#(= (bvadd |FloppyDeviceControl_#res| (_ bv1073741738 32)) (_ bv0 32))} {60397#true} #1074#return; {60496#(= (_ bv3221225558 32) |main_#t~ret95|)} is VALID [2018-11-18 21:31:16,339 INFO L273 TraceCheckUtils]: 32: Hoare triple {60496#(= (_ bv3221225558 32) |main_#t~ret95|)} ~status~1 := #t~ret95;havoc #t~ret95; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,340 INFO L273 TraceCheckUtils]: 33: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,340 INFO L273 TraceCheckUtils]: 34: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,340 INFO L273 TraceCheckUtils]: 35: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,341 INFO L273 TraceCheckUtils]: 36: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,341 INFO L273 TraceCheckUtils]: 37: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,341 INFO L273 TraceCheckUtils]: 38: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,342 INFO L273 TraceCheckUtils]: 39: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,342 INFO L273 TraceCheckUtils]: 40: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,343 INFO L273 TraceCheckUtils]: 41: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:16,343 INFO L273 TraceCheckUtils]: 42: Hoare triple {60500#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {60398#false} is VALID [2018-11-18 21:31:16,344 INFO L256 TraceCheckUtils]: 43: Hoare triple {60398#false} call errorFn(); {60398#false} is VALID [2018-11-18 21:31:16,344 INFO L273 TraceCheckUtils]: 44: Hoare triple {60398#false} assume !false; {60398#false} is VALID [2018-11-18 21:31:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:16,346 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:16,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:16,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:31:16,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-18 21:31:16,350 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:16,350 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:31:16,406 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:16,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:31:16,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:31:16,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:31:16,407 INFO L87 Difference]: Start difference. First operand 939 states and 1265 transitions. Second operand 5 states. [2018-11-18 21:31:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:21,186 INFO L93 Difference]: Finished difference Result 955 states and 1280 transitions. [2018-11-18 21:31:21,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:31:21,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2018-11-18 21:31:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:21,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2018-11-18 21:31:21,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:21,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 501 transitions. [2018-11-18 21:31:21,195 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 501 transitions. [2018-11-18 21:31:21,875 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 501 edges. 501 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:21,915 INFO L225 Difference]: With dead ends: 955 [2018-11-18 21:31:21,916 INFO L226 Difference]: Without dead ends: 937 [2018-11-18 21:31:21,916 INFO L604 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 [2018-11-18 21:31:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 937 states. [2018-11-18 21:31:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 937 to 937. [2018-11-18 21:31:24,173 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:24,173 INFO L82 GeneralOperation]: Start isEquivalent. First operand 937 states. Second operand 937 states. [2018-11-18 21:31:24,173 INFO L74 IsIncluded]: Start isIncluded. First operand 937 states. Second operand 937 states. [2018-11-18 21:31:24,173 INFO L87 Difference]: Start difference. First operand 937 states. Second operand 937 states. [2018-11-18 21:31:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:24,209 INFO L93 Difference]: Finished difference Result 937 states and 1261 transitions. [2018-11-18 21:31:24,209 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1261 transitions. [2018-11-18 21:31:24,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:24,211 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:24,211 INFO L74 IsIncluded]: Start isIncluded. First operand 937 states. Second operand 937 states. [2018-11-18 21:31:24,211 INFO L87 Difference]: Start difference. First operand 937 states. Second operand 937 states. [2018-11-18 21:31:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:24,242 INFO L93 Difference]: Finished difference Result 937 states and 1261 transitions. [2018-11-18 21:31:24,242 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1261 transitions. [2018-11-18 21:31:24,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:24,244 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:24,244 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:24,244 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:24,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 937 states. [2018-11-18 21:31:24,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1261 transitions. [2018-11-18 21:31:24,306 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1261 transitions. Word has length 45 [2018-11-18 21:31:24,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:24,307 INFO L480 AbstractCegarLoop]: Abstraction has 937 states and 1261 transitions. [2018-11-18 21:31:24,307 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:31:24,307 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1261 transitions. [2018-11-18 21:31:24,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 21:31:24,308 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:24,308 INFO L375 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] [2018-11-18 21:31:24,308 INFO L423 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:24,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:24,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1142229789, now seen corresponding path program 1 times [2018-11-18 21:31:24,309 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:24,309 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 [2018-11-18 21:31:24,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:24,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:24,541 INFO L256 TraceCheckUtils]: 0: Hoare triple {64973#true} call ULTIMATE.init(); {64973#true} is VALID [2018-11-18 21:31:24,541 INFO L273 TraceCheckUtils]: 1: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,541 INFO L273 TraceCheckUtils]: 2: Hoare triple {64973#true} assume true; {64973#true} is VALID [2018-11-18 21:31:24,541 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {64973#true} {64973#true} #1158#return; {64973#true} is VALID [2018-11-18 21:31:24,541 INFO L256 TraceCheckUtils]: 4: Hoare triple {64973#true} call #t~ret166 := main(); {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L273 TraceCheckUtils]: 5: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L256 TraceCheckUtils]: 6: Hoare triple {64973#true} call _BLAST_init(); {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L273 TraceCheckUtils]: 7: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L273 TraceCheckUtils]: 8: Hoare triple {64973#true} assume true; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {64973#true} {64973#true} #1066#return; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L273 TraceCheckUtils]: 10: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L273 TraceCheckUtils]: 11: Hoare triple {64973#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {64973#true} is VALID [2018-11-18 21:31:24,542 INFO L256 TraceCheckUtils]: 12: Hoare triple {64973#true} call stub_driver_init(); {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 13: Hoare triple {64973#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 14: Hoare triple {64973#true} assume true; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {64973#true} {64973#true} #1068#return; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 16: Hoare triple {64973#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 17: Hoare triple {64973#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 18: Hoare triple {64973#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L273 TraceCheckUtils]: 19: Hoare triple {64973#true} assume 2bv32 == ~tmp_ndt_3~0; {64973#true} is VALID [2018-11-18 21:31:24,543 INFO L256 TraceCheckUtils]: 20: Hoare triple {64973#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 21: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 22: Hoare triple {64973#true} assume 0bv32 != ~disketteExtension__HoldNewRequests~2; {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 23: Hoare triple {64973#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 != ~__cil_tmp41~0; {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L256 TraceCheckUtils]: 24: Hoare triple {64973#true} call #t~ret151 := FloppyQueueRequest(~disketteExtension~2, ~Irp); {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 25: Hoare triple {64973#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; {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 26: Hoare triple {64973#true} assume 1bv32 == ~PagingReferenceCount~0; {64973#true} is VALID [2018-11-18 21:31:24,544 INFO L273 TraceCheckUtils]: 27: Hoare triple {64973#true} assume !(0bv32 != ~FAKE_CONDITION~1);~Irp__IoStatus__Status~4 := 259bv32;~myStatus~0 := 259bv32; {64973#true} is VALID [2018-11-18 21:31:24,545 INFO L273 TraceCheckUtils]: 28: Hoare triple {64973#true} assume 0bv32 == ~pended~0;~pended~0 := 1bv32; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,545 INFO L273 TraceCheckUtils]: 29: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} ~ntStatus~4 := 259bv32; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,545 INFO L273 TraceCheckUtils]: 30: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} #res := ~ntStatus~4; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,546 INFO L273 TraceCheckUtils]: 31: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} assume true; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,546 INFO L268 TraceCheckUtils]: 32: Hoare quadruple {65062#(= (_ bv1 32) ~pended~0)} {64973#true} #1130#return; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,547 INFO L273 TraceCheckUtils]: 33: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} ~ntStatus~3 := #t~ret151;havoc #t~ret151;#res := ~ntStatus~3; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,547 INFO L273 TraceCheckUtils]: 34: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} assume true; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,547 INFO L268 TraceCheckUtils]: 35: Hoare quadruple {65062#(= (_ bv1 32) ~pended~0)} {64973#true} #1074#return; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,548 INFO L273 TraceCheckUtils]: 36: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} ~status~1 := #t~ret95;havoc #t~ret95; {65062#(= (_ bv1 32) ~pended~0)} is VALID [2018-11-18 21:31:24,548 INFO L273 TraceCheckUtils]: 37: Hoare triple {65062#(= (_ bv1 32) ~pended~0)} assume !(1bv32 == ~pended~0); {64974#false} is VALID [2018-11-18 21:31:24,548 INFO L273 TraceCheckUtils]: 38: Hoare triple {64974#false} assume !(1bv32 == ~pended~0); {64974#false} is VALID [2018-11-18 21:31:24,548 INFO L273 TraceCheckUtils]: 39: Hoare triple {64974#false} assume ~s~0 != ~UNLOADED~0; {64974#false} is VALID [2018-11-18 21:31:24,549 INFO L273 TraceCheckUtils]: 40: Hoare triple {64974#false} assume 4294967295bv32 != ~status~1; {64974#false} is VALID [2018-11-18 21:31:24,549 INFO L273 TraceCheckUtils]: 41: Hoare triple {64974#false} assume !(~s~0 != ~SKIP2~0); {64974#false} is VALID [2018-11-18 21:31:24,549 INFO L273 TraceCheckUtils]: 42: Hoare triple {64974#false} assume 1bv32 == ~pended~0; {64974#false} is VALID [2018-11-18 21:31:24,549 INFO L273 TraceCheckUtils]: 43: Hoare triple {64974#false} assume 259bv32 != ~status~1; {64974#false} is VALID [2018-11-18 21:31:24,550 INFO L256 TraceCheckUtils]: 44: Hoare triple {64974#false} call errorFn(); {64974#false} is VALID [2018-11-18 21:31:24,550 INFO L273 TraceCheckUtils]: 45: Hoare triple {64974#false} assume !false; {64974#false} is VALID [2018-11-18 21:31:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:24,552 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:24,558 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:24,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:31:24,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-11-18 21:31:24,559 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:24,559 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:31:24,627 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:24,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:31:24,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:31:24,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:31:24,628 INFO L87 Difference]: Start difference. First operand 937 states and 1261 transitions. Second operand 3 states. [2018-11-18 21:31:29,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:29,873 INFO L93 Difference]: Finished difference Result 968 states and 1298 transitions. [2018-11-18 21:31:29,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:31:29,873 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-11-18 21:31:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:31:29,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2018-11-18 21:31:29,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:31:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2018-11-18 21:31:29,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 596 transitions. [2018-11-18 21:31:30,662 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 596 edges. 596 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:30,701 INFO L225 Difference]: With dead ends: 968 [2018-11-18 21:31:30,701 INFO L226 Difference]: Without dead ends: 920 [2018-11-18 21:31:30,702 INFO L604 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 [2018-11-18 21:31:30,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2018-11-18 21:31:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 915. [2018-11-18 21:31:32,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:32,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 920 states. Second operand 915 states. [2018-11-18 21:31:32,546 INFO L74 IsIncluded]: Start isIncluded. First operand 920 states. Second operand 915 states. [2018-11-18 21:31:32,546 INFO L87 Difference]: Start difference. First operand 920 states. Second operand 915 states. [2018-11-18 21:31:32,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:32,582 INFO L93 Difference]: Finished difference Result 920 states and 1233 transitions. [2018-11-18 21:31:32,582 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1233 transitions. [2018-11-18 21:31:32,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:32,585 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:32,585 INFO L74 IsIncluded]: Start isIncluded. First operand 915 states. Second operand 920 states. [2018-11-18 21:31:32,585 INFO L87 Difference]: Start difference. First operand 915 states. Second operand 920 states. [2018-11-18 21:31:32,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:32,621 INFO L93 Difference]: Finished difference Result 920 states and 1233 transitions. [2018-11-18 21:31:32,621 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1233 transitions. [2018-11-18 21:31:32,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:32,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:32,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:32,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:32,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 915 states. [2018-11-18 21:31:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1229 transitions. [2018-11-18 21:31:32,668 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1229 transitions. Word has length 46 [2018-11-18 21:31:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:32,668 INFO L480 AbstractCegarLoop]: Abstraction has 915 states and 1229 transitions. [2018-11-18 21:31:32,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:31:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1229 transitions. [2018-11-18 21:31:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 21:31:32,669 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:32,670 INFO L375 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] [2018-11-18 21:31:32,670 INFO L423 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:32,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:32,670 INFO L82 PathProgramCache]: Analyzing trace with hash -1651959336, now seen corresponding path program 1 times [2018-11-18 21:31:32,671 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:32,671 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 [2018-11-18 21:31:32,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:32,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:32,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:32,890 INFO L256 TraceCheckUtils]: 0: Hoare triple {69511#true} call ULTIMATE.init(); {69511#true} is VALID [2018-11-18 21:31:32,890 INFO L273 TraceCheckUtils]: 1: Hoare triple {69511#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; {69511#true} is VALID [2018-11-18 21:31:32,890 INFO L273 TraceCheckUtils]: 2: Hoare triple {69511#true} assume true; {69511#true} is VALID [2018-11-18 21:31:32,890 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {69511#true} {69511#true} #1158#return; {69511#true} is VALID [2018-11-18 21:31:32,891 INFO L256 TraceCheckUtils]: 4: Hoare triple {69511#true} call #t~ret166 := main(); {69511#true} is VALID [2018-11-18 21:31:32,891 INFO L273 TraceCheckUtils]: 5: Hoare triple {69511#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; {69511#true} is VALID [2018-11-18 21:31:32,891 INFO L256 TraceCheckUtils]: 6: Hoare triple {69511#true} call _BLAST_init(); {69511#true} is VALID [2018-11-18 21:31:32,891 INFO L273 TraceCheckUtils]: 7: Hoare triple {69511#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; {69511#true} is VALID [2018-11-18 21:31:32,891 INFO L273 TraceCheckUtils]: 8: Hoare triple {69511#true} assume true; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {69511#true} {69511#true} #1066#return; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L273 TraceCheckUtils]: 10: Hoare triple {69511#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; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L273 TraceCheckUtils]: 11: Hoare triple {69511#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L256 TraceCheckUtils]: 12: Hoare triple {69511#true} call stub_driver_init(); {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L273 TraceCheckUtils]: 13: Hoare triple {69511#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L273 TraceCheckUtils]: 14: Hoare triple {69511#true} assume true; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {69511#true} {69511#true} #1068#return; {69511#true} is VALID [2018-11-18 21:31:32,892 INFO L273 TraceCheckUtils]: 16: Hoare triple {69511#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 17: Hoare triple {69511#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 18: Hoare triple {69511#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 19: Hoare triple {69511#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 20: Hoare triple {69511#true} assume 3bv32 == ~tmp_ndt_4~0; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L256 TraceCheckUtils]: 21: Hoare triple {69511#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 22: Hoare triple {69511#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; {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 23: Hoare triple {69511#true} assume !(1bv32 == ~PagingReferenceCount~0); {69511#true} is VALID [2018-11-18 21:31:32,893 INFO L273 TraceCheckUtils]: 24: Hoare triple {69511#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L273 TraceCheckUtils]: 25: Hoare triple {69511#true} assume 0bv32 != ~disketteExtension__IsRemoved~0;~Irp__IoStatus__Information~1 := 0bv32;~Irp__IoStatus__Status~1 := 3221225558bv32;~myStatus~0 := 3221225558bv32; {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L256 TraceCheckUtils]: 26: Hoare triple {69511#true} call IofCompleteRequest(~Irp, 0bv32); {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L273 TraceCheckUtils]: 27: Hoare triple {69511#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L273 TraceCheckUtils]: 28: Hoare triple {69511#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L273 TraceCheckUtils]: 29: Hoare triple {69511#true} assume true; {69511#true} is VALID [2018-11-18 21:31:32,894 INFO L268 TraceCheckUtils]: 30: Hoare quadruple {69511#true} {69511#true} #1018#return; {69511#true} is VALID [2018-11-18 21:31:32,895 INFO L273 TraceCheckUtils]: 31: Hoare triple {69511#true} #res := 3221225558bv32; {69609#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,895 INFO L273 TraceCheckUtils]: 32: Hoare triple {69609#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} assume true; {69609#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,896 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {69609#(= (bvadd |FloppyPnp_#res| (_ bv1073741738 32)) (_ bv0 32))} {69511#true} #1076#return; {69616#(= (_ bv3221225558 32) |main_#t~ret96|)} is VALID [2018-11-18 21:31:32,896 INFO L273 TraceCheckUtils]: 34: Hoare triple {69616#(= (_ bv3221225558 32) |main_#t~ret96|)} ~status~1 := #t~ret96;havoc #t~ret96; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,897 INFO L273 TraceCheckUtils]: 35: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,897 INFO L273 TraceCheckUtils]: 36: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,898 INFO L273 TraceCheckUtils]: 37: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,898 INFO L273 TraceCheckUtils]: 38: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,899 INFO L273 TraceCheckUtils]: 39: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,900 INFO L273 TraceCheckUtils]: 40: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,900 INFO L273 TraceCheckUtils]: 41: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,901 INFO L273 TraceCheckUtils]: 42: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,901 INFO L273 TraceCheckUtils]: 43: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} is VALID [2018-11-18 21:31:32,902 INFO L273 TraceCheckUtils]: 44: Hoare triple {69620#(= (bvadd main_~status~1 (_ bv1073741738 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {69512#false} is VALID [2018-11-18 21:31:32,902 INFO L256 TraceCheckUtils]: 45: Hoare triple {69512#false} call errorFn(); {69512#false} is VALID [2018-11-18 21:31:32,902 INFO L273 TraceCheckUtils]: 46: Hoare triple {69512#false} assume !false; {69512#false} is VALID [2018-11-18 21:31:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:32,905 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:32,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:32,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:31:32,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-18 21:31:32,909 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:32,909 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:31:32,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:32,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:31:32,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:31:32,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:31:32,972 INFO L87 Difference]: Start difference. First operand 915 states and 1229 transitions. Second operand 5 states. [2018-11-18 21:31:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:38,746 INFO L93 Difference]: Finished difference Result 931 states and 1244 transitions. [2018-11-18 21:31:38,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 21:31:38,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2018-11-18 21:31:38,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:38,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:38,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2018-11-18 21:31:38,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:38,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 494 transitions. [2018-11-18 21:31:38,752 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 494 transitions. [2018-11-18 21:31:39,255 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 494 edges. 494 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:39,305 INFO L225 Difference]: With dead ends: 931 [2018-11-18 21:31:39,306 INFO L226 Difference]: Without dead ends: 913 [2018-11-18 21:31:39,306 INFO L604 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 [2018-11-18 21:31:39,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 913 states. [2018-11-18 21:31:44,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 913 to 913. [2018-11-18 21:31:44,674 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:44,675 INFO L82 GeneralOperation]: Start isEquivalent. First operand 913 states. Second operand 913 states. [2018-11-18 21:31:44,675 INFO L74 IsIncluded]: Start isIncluded. First operand 913 states. Second operand 913 states. [2018-11-18 21:31:44,675 INFO L87 Difference]: Start difference. First operand 913 states. Second operand 913 states. [2018-11-18 21:31:44,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:44,712 INFO L93 Difference]: Finished difference Result 913 states and 1225 transitions. [2018-11-18 21:31:44,713 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1225 transitions. [2018-11-18 21:31:44,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:44,714 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:44,715 INFO L74 IsIncluded]: Start isIncluded. First operand 913 states. Second operand 913 states. [2018-11-18 21:31:44,715 INFO L87 Difference]: Start difference. First operand 913 states. Second operand 913 states. [2018-11-18 21:31:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:44,761 INFO L93 Difference]: Finished difference Result 913 states and 1225 transitions. [2018-11-18 21:31:44,761 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1225 transitions. [2018-11-18 21:31:44,763 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:44,764 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:44,764 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:44,764 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:44,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2018-11-18 21:31:44,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1225 transitions. [2018-11-18 21:31:44,803 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1225 transitions. Word has length 47 [2018-11-18 21:31:44,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:44,804 INFO L480 AbstractCegarLoop]: Abstraction has 913 states and 1225 transitions. [2018-11-18 21:31:44,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:31:44,804 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1225 transitions. [2018-11-18 21:31:44,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 21:31:44,805 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:44,805 INFO L375 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] [2018-11-18 21:31:44,805 INFO L423 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:44,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:44,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1967894333, now seen corresponding path program 1 times [2018-11-18 21:31:44,805 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:44,806 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 [2018-11-18 21:31:44,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:44,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:45,082 INFO L256 TraceCheckUtils]: 0: Hoare triple {73989#true} call ULTIMATE.init(); {73989#true} is VALID [2018-11-18 21:31:45,083 INFO L273 TraceCheckUtils]: 1: Hoare triple {73989#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; {73989#true} is VALID [2018-11-18 21:31:45,083 INFO L273 TraceCheckUtils]: 2: Hoare triple {73989#true} assume true; {73989#true} is VALID [2018-11-18 21:31:45,083 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {73989#true} {73989#true} #1158#return; {73989#true} is VALID [2018-11-18 21:31:45,083 INFO L256 TraceCheckUtils]: 4: Hoare triple {73989#true} call #t~ret166 := main(); {73989#true} is VALID [2018-11-18 21:31:45,083 INFO L273 TraceCheckUtils]: 5: Hoare triple {73989#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; {73989#true} is VALID [2018-11-18 21:31:45,084 INFO L256 TraceCheckUtils]: 6: Hoare triple {73989#true} call _BLAST_init(); {73989#true} is VALID [2018-11-18 21:31:45,084 INFO L273 TraceCheckUtils]: 7: Hoare triple {73989#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; {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,085 INFO L273 TraceCheckUtils]: 8: Hoare triple {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,085 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {73989#true} #1066#return; {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,086 INFO L273 TraceCheckUtils]: 10: Hoare triple {74015#(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; {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,086 INFO L273 TraceCheckUtils]: 11: Hoare triple {74015#(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; {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,087 INFO L256 TraceCheckUtils]: 12: Hoare triple {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call stub_driver_init(); {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,087 INFO L273 TraceCheckUtils]: 13: Hoare triple {74015#(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; {74034#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,088 INFO L273 TraceCheckUtils]: 14: Hoare triple {74034#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {74034#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,088 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {74034#(and (= (_ bv1 32) ~NP~0) (= ~NP~0 ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {74015#(and (= (_ bv1 32) ~NP~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #1068#return; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,089 INFO L273 TraceCheckUtils]: 16: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,090 INFO L273 TraceCheckUtils]: 17: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,091 INFO L273 TraceCheckUtils]: 18: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,091 INFO L273 TraceCheckUtils]: 19: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,092 INFO L273 TraceCheckUtils]: 20: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 3bv32 == ~tmp_ndt_4~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,093 INFO L256 TraceCheckUtils]: 21: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,094 INFO L273 TraceCheckUtils]: 22: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,094 INFO L273 TraceCheckUtils]: 23: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(1bv32 == ~PagingReferenceCount~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,095 INFO L273 TraceCheckUtils]: 24: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,096 INFO L273 TraceCheckUtils]: 25: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,096 INFO L273 TraceCheckUtils]: 26: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~irpSp__MinorFunction~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,097 INFO L273 TraceCheckUtils]: 27: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 5bv32 == ~irpSp__MinorFunction~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,098 INFO L273 TraceCheckUtils]: 28: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 5bv32 == ~irpSp__MinorFunction~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,098 INFO L273 TraceCheckUtils]: 29: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~disketteExtension__IsStarted~0);~disketteExtension__HoldNewRequests~0 := 1bv32; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,099 INFO L256 TraceCheckUtils]: 30: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} call #t~ret31 := FlQueueIrpToThread(~Irp, ~disketteExtension~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,100 INFO L273 TraceCheckUtils]: 31: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,101 INFO L273 TraceCheckUtils]: 32: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,101 INFO L273 TraceCheckUtils]: 33: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume !(0bv32 == ~DisketteExtension__ThreadReferenceCount~0); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,102 INFO L273 TraceCheckUtils]: 34: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 0bv32 == ~pended~0;~pended~0 := 1bv32; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,103 INFO L273 TraceCheckUtils]: 35: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #res := 259bv32; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,103 INFO L273 TraceCheckUtils]: 36: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume true; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,104 INFO L268 TraceCheckUtils]: 37: Hoare quadruple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} #1026#return; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,105 INFO L273 TraceCheckUtils]: 38: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} ~ntStatus~0 := #t~ret31;havoc #t~ret31;~__cil_tmp29~0 := ~ntStatus~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,106 INFO L273 TraceCheckUtils]: 39: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume 259bv32 == ~__cil_tmp29~0; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,107 INFO L256 TraceCheckUtils]: 40: Hoare triple {74041#(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); {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,107 INFO L273 TraceCheckUtils]: 41: Hoare triple {74041#(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; {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} is VALID [2018-11-18 21:31:45,108 INFO L273 TraceCheckUtils]: 42: Hoare triple {74041#(and (= (_ bv1 32) ~s~0) (= (bvadd ~MPR3~0 (_ bv4294967290 32)) (_ bv0 32)))} assume ~s~0 == ~MPR3~0; {73990#false} is VALID [2018-11-18 21:31:45,108 INFO L273 TraceCheckUtils]: 43: Hoare triple {73990#false} assume !(1bv32 == ~setEventCalled~0); {73990#false} is VALID [2018-11-18 21:31:45,109 INFO L273 TraceCheckUtils]: 44: Hoare triple {73990#false} assume !(1bv32 == ~customIrp~0); {73990#false} is VALID [2018-11-18 21:31:45,109 INFO L273 TraceCheckUtils]: 45: Hoare triple {73990#false} assume ~s~0 == ~MPR3~0; {73990#false} is VALID [2018-11-18 21:31:45,109 INFO L256 TraceCheckUtils]: 46: Hoare triple {73990#false} call errorFn(); {73990#false} is VALID [2018-11-18 21:31:45,109 INFO L273 TraceCheckUtils]: 47: Hoare triple {73990#false} assume !false; {73990#false} is VALID [2018-11-18 21:31:45,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:45,113 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:45,115 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:45,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 21:31:45,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-11-18 21:31:45,116 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:45,116 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 21:31:45,181 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:45,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 21:31:45,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 21:31:45,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 21:31:45,182 INFO L87 Difference]: Start difference. First operand 913 states and 1225 transitions. Second operand 5 states. [2018-11-18 21:31:51,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:51,262 INFO L93 Difference]: Finished difference Result 1503 states and 1978 transitions. [2018-11-18 21:31:51,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 21:31:51,262 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-11-18 21:31:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:51,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 891 transitions. [2018-11-18 21:31:51,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 21:31:51,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 891 transitions. [2018-11-18 21:31:51,272 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 891 transitions. [2018-11-18 21:31:52,472 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 891 edges. 891 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:52,519 INFO L225 Difference]: With dead ends: 1503 [2018-11-18 21:31:52,519 INFO L226 Difference]: Without dead ends: 949 [2018-11-18 21:31:52,521 INFO L604 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 [2018-11-18 21:31:52,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2018-11-18 21:31:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 904. [2018-11-18 21:31:55,446 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:31:55,446 INFO L82 GeneralOperation]: Start isEquivalent. First operand 949 states. Second operand 904 states. [2018-11-18 21:31:55,446 INFO L74 IsIncluded]: Start isIncluded. First operand 949 states. Second operand 904 states. [2018-11-18 21:31:55,446 INFO L87 Difference]: Start difference. First operand 949 states. Second operand 904 states. [2018-11-18 21:31:55,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:55,482 INFO L93 Difference]: Finished difference Result 949 states and 1255 transitions. [2018-11-18 21:31:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1255 transitions. [2018-11-18 21:31:55,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:55,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:55,484 INFO L74 IsIncluded]: Start isIncluded. First operand 904 states. Second operand 949 states. [2018-11-18 21:31:55,484 INFO L87 Difference]: Start difference. First operand 904 states. Second operand 949 states. [2018-11-18 21:31:55,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:55,516 INFO L93 Difference]: Finished difference Result 949 states and 1255 transitions. [2018-11-18 21:31:55,516 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1255 transitions. [2018-11-18 21:31:55,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:31:55,518 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:31:55,519 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:31:55,519 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:31:55,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2018-11-18 21:31:55,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 1204 transitions. [2018-11-18 21:31:55,557 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 1204 transitions. Word has length 48 [2018-11-18 21:31:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:31:55,557 INFO L480 AbstractCegarLoop]: Abstraction has 904 states and 1204 transitions. [2018-11-18 21:31:55,557 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 21:31:55,557 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 1204 transitions. [2018-11-18 21:31:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 21:31:55,558 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:31:55,558 INFO L375 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, 1, 1] [2018-11-18 21:31:55,558 INFO L423 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:31:55,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:31:55,559 INFO L82 PathProgramCache]: Analyzing trace with hash -341128887, now seen corresponding path program 1 times [2018-11-18 21:31:55,559 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:31:55,559 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 [2018-11-18 21:31:55,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:31:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:31:55,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:31:55,794 INFO L256 TraceCheckUtils]: 0: Hoare triple {79306#true} call ULTIMATE.init(); {79306#true} is VALID [2018-11-18 21:31:55,794 INFO L273 TraceCheckUtils]: 1: Hoare triple {79306#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; {79306#true} is VALID [2018-11-18 21:31:55,795 INFO L273 TraceCheckUtils]: 2: Hoare triple {79306#true} assume true; {79306#true} is VALID [2018-11-18 21:31:55,795 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {79306#true} {79306#true} #1158#return; {79306#true} is VALID [2018-11-18 21:31:55,795 INFO L256 TraceCheckUtils]: 4: Hoare triple {79306#true} call #t~ret166 := main(); {79306#true} is VALID [2018-11-18 21:31:55,795 INFO L273 TraceCheckUtils]: 5: Hoare triple {79306#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; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L256 TraceCheckUtils]: 6: Hoare triple {79306#true} call _BLAST_init(); {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L273 TraceCheckUtils]: 7: Hoare triple {79306#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; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L273 TraceCheckUtils]: 8: Hoare triple {79306#true} assume true; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {79306#true} {79306#true} #1066#return; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L273 TraceCheckUtils]: 10: Hoare triple {79306#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; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L273 TraceCheckUtils]: 11: Hoare triple {79306#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L256 TraceCheckUtils]: 12: Hoare triple {79306#true} call stub_driver_init(); {79306#true} is VALID [2018-11-18 21:31:55,796 INFO L273 TraceCheckUtils]: 13: Hoare triple {79306#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 14: Hoare triple {79306#true} assume true; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {79306#true} {79306#true} #1068#return; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 16: Hoare triple {79306#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 17: Hoare triple {79306#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 18: Hoare triple {79306#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 19: Hoare triple {79306#true} assume !(2bv32 == ~tmp_ndt_3~0);havoc ~tmp_ndt_4~0;~tmp_ndt_4~0 := #t~nondet92;havoc #t~nondet92; {79306#true} is VALID [2018-11-18 21:31:55,797 INFO L273 TraceCheckUtils]: 20: Hoare triple {79306#true} assume 3bv32 == ~tmp_ndt_4~0; {79306#true} is VALID [2018-11-18 21:31:55,798 INFO L256 TraceCheckUtils]: 21: Hoare triple {79306#true} call #t~ret96 := FloppyPnp(~devobj~0, ~pirp~0); {79306#true} is VALID [2018-11-18 21:31:55,798 INFO L273 TraceCheckUtils]: 22: Hoare triple {79306#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; {79306#true} is VALID [2018-11-18 21:31:55,798 INFO L273 TraceCheckUtils]: 23: Hoare triple {79306#true} assume !(1bv32 == ~PagingReferenceCount~0); {79306#true} is VALID [2018-11-18 21:31:55,798 INFO L273 TraceCheckUtils]: 24: Hoare triple {79306#true} ~disketteExtension~0 := ~DeviceObject__DeviceExtension~0;~irpSp~0 := ~Irp__Tail__Overlay__CurrentStackLocation~0; {79306#true} is VALID [2018-11-18 21:31:55,798 INFO L273 TraceCheckUtils]: 25: Hoare triple {79306#true} assume !(0bv32 != ~disketteExtension__IsRemoved~0); {79306#true} is VALID [2018-11-18 21:31:55,799 INFO L273 TraceCheckUtils]: 26: Hoare triple {79306#true} assume 0bv32 == ~irpSp__MinorFunction~0; {79306#true} is VALID [2018-11-18 21:31:55,799 INFO L256 TraceCheckUtils]: 27: Hoare triple {79306#true} call #t~ret27 := FloppyStartDevice(~DeviceObject, ~Irp); {79306#true} is VALID [2018-11-18 21:31:55,799 INFO L273 TraceCheckUtils]: 28: Hoare triple {79306#true} ~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; {79306#true} is VALID [2018-11-18 21:31:55,799 INFO L273 TraceCheckUtils]: 29: Hoare triple {79306#true} assume !(~s~0 != ~NP~0); {79306#true} is VALID [2018-11-18 21:31:55,819 INFO L273 TraceCheckUtils]: 30: Hoare triple {79306#true} assume !(0bv32 != ~compRegistered~0);~compRegistered~0 := 1bv32; {79401#(= (_ bv1 32) ~compRegistered~0)} is VALID [2018-11-18 21:31:55,832 INFO L273 TraceCheckUtils]: 31: Hoare triple {79401#(= (_ bv1 32) ~compRegistered~0)} ~irpSp___1~1 := ~bvsub32(~Irp__Tail__Overlay__CurrentStackLocation~1, 1bv32);~irpSp__Context~1 := ~doneEvent~1;~irpSp__Control~1 := 224bv32; {79401#(= (_ bv1 32) ~compRegistered~0)} is VALID [2018-11-18 21:31:55,848 INFO L256 TraceCheckUtils]: 32: Hoare triple {79401#(= (_ bv1 32) ~compRegistered~0)} call #t~ret71 := IofCallDriver(~disketteExtension__TargetObject~1, ~Irp); {79401#(= (_ bv1 32) ~compRegistered~0)} is VALID [2018-11-18 21:31:55,857 INFO L273 TraceCheckUtils]: 33: Hoare triple {79401#(= (_ bv1 32) ~compRegistered~0)} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~returnVal2~0;havoc ~compRetStatus1~0;~lcontext~0 := #t~nondet103;havoc #t~nondet103;havoc ~__cil_tmp7~0; {79401#(= (_ bv1 32) ~compRegistered~0)} is VALID [2018-11-18 21:31:55,870 INFO L273 TraceCheckUtils]: 34: Hoare triple {79401#(= (_ bv1 32) ~compRegistered~0)} assume !(0bv32 != ~compRegistered~0); {79307#false} is VALID [2018-11-18 21:31:55,870 INFO L273 TraceCheckUtils]: 35: Hoare triple {79307#false} havoc ~tmp_ndt_10~0;~tmp_ndt_10~0 := #t~nondet105;havoc #t~nondet105; {79307#false} is VALID [2018-11-18 21:31:55,870 INFO L273 TraceCheckUtils]: 36: Hoare triple {79307#false} assume 0bv32 == ~tmp_ndt_10~0; {79307#false} is VALID [2018-11-18 21:31:55,870 INFO L273 TraceCheckUtils]: 37: Hoare triple {79307#false} ~returnVal2~0 := 0bv32; {79307#false} is VALID [2018-11-18 21:31:55,871 INFO L273 TraceCheckUtils]: 38: Hoare triple {79307#false} assume ~s~0 == ~NP~0;~s~0 := ~IPC~0;~lowerDriverReturn~0 := ~returnVal2~0; {79307#false} is VALID [2018-11-18 21:31:55,871 INFO L273 TraceCheckUtils]: 39: Hoare triple {79307#false} #res := ~returnVal2~0; {79307#false} is VALID [2018-11-18 21:31:55,871 INFO L273 TraceCheckUtils]: 40: Hoare triple {79307#false} assume true; {79307#false} is VALID [2018-11-18 21:31:55,871 INFO L268 TraceCheckUtils]: 41: Hoare quadruple {79307#false} {79401#(= (_ bv1 32) ~compRegistered~0)} #1100#return; {79307#false} is VALID [2018-11-18 21:31:55,871 INFO L273 TraceCheckUtils]: 42: Hoare triple {79307#false} ~ntStatus~1 := #t~ret71;havoc #t~ret71;~__cil_tmp42~0 := ~ntStatus~1; {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L273 TraceCheckUtils]: 43: Hoare triple {79307#false} assume 259bv32 == ~__cil_tmp42~0; {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L256 TraceCheckUtils]: 44: Hoare triple {79307#false} call #t~ret72 := KeWaitForSingleObject(~doneEvent~1, ~Executive~0, ~KernelMode~0, 0bv32, 0bv32); {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L273 TraceCheckUtils]: 45: Hoare triple {79307#false} ~Object := #in~Object;~WaitReason := #in~WaitReason;~WaitMode := #in~WaitMode;~Alertable := #in~Alertable;~Timeout := #in~Timeout; {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L273 TraceCheckUtils]: 46: Hoare triple {79307#false} assume ~s~0 == ~MPR3~0; {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L273 TraceCheckUtils]: 47: Hoare triple {79307#false} assume !(1bv32 == ~setEventCalled~0); {79307#false} is VALID [2018-11-18 21:31:55,872 INFO L273 TraceCheckUtils]: 48: Hoare triple {79307#false} assume !(1bv32 == ~customIrp~0); {79307#false} is VALID [2018-11-18 21:31:55,873 INFO L273 TraceCheckUtils]: 49: Hoare triple {79307#false} assume ~s~0 == ~MPR3~0; {79307#false} is VALID [2018-11-18 21:31:55,873 INFO L256 TraceCheckUtils]: 50: Hoare triple {79307#false} call errorFn(); {79307#false} is VALID [2018-11-18 21:31:55,873 INFO L273 TraceCheckUtils]: 51: Hoare triple {79307#false} assume !false; {79307#false} is VALID [2018-11-18 21:31:55,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:31:55,875 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:31:55,879 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:31:55,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:31:55,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-18 21:31:55,880 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:31:55,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:31:55,986 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:31:55,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:31:55,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:31:55,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:31:55,986 INFO L87 Difference]: Start difference. First operand 904 states and 1204 transitions. Second operand 3 states. [2018-11-18 21:31:59,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:31:59,519 INFO L93 Difference]: Finished difference Result 988 states and 1287 transitions. [2018-11-18 21:31:59,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:31:59,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-18 21:31:59,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:31:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:31:59,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2018-11-18 21:31:59,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:31:59,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 702 transitions. [2018-11-18 21:31:59,526 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 702 transitions. [2018-11-18 21:32:00,283 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 702 edges. 702 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:32:00,306 INFO L225 Difference]: With dead ends: 988 [2018-11-18 21:32:00,306 INFO L226 Difference]: Without dead ends: 651 [2018-11-18 21:32:00,307 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:32:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2018-11-18 21:32:04,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 614. [2018-11-18 21:32:04,089 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:32:04,089 INFO L82 GeneralOperation]: Start isEquivalent. First operand 651 states. Second operand 614 states. [2018-11-18 21:32:04,089 INFO L74 IsIncluded]: Start isIncluded. First operand 651 states. Second operand 614 states. [2018-11-18 21:32:04,089 INFO L87 Difference]: Start difference. First operand 651 states. Second operand 614 states. [2018-11-18 21:32:04,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:32:04,109 INFO L93 Difference]: Finished difference Result 651 states and 840 transitions. [2018-11-18 21:32:04,110 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 840 transitions. [2018-11-18 21:32:04,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:32:04,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:32:04,111 INFO L74 IsIncluded]: Start isIncluded. First operand 614 states. Second operand 651 states. [2018-11-18 21:32:04,111 INFO L87 Difference]: Start difference. First operand 614 states. Second operand 651 states. [2018-11-18 21:32:04,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:32:04,132 INFO L93 Difference]: Finished difference Result 651 states and 840 transitions. [2018-11-18 21:32:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 840 transitions. [2018-11-18 21:32:04,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:32:04,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:32:04,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:32:04,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:32:04,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2018-11-18 21:32:04,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 793 transitions. [2018-11-18 21:32:04,151 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 793 transitions. Word has length 52 [2018-11-18 21:32:04,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:32:04,151 INFO L480 AbstractCegarLoop]: Abstraction has 614 states and 793 transitions. [2018-11-18 21:32:04,151 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:32:04,151 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 793 transitions. [2018-11-18 21:32:04,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 21:32:04,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:32:04,152 INFO L375 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] [2018-11-18 21:32:04,152 INFO L423 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:32:04,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:32:04,153 INFO L82 PathProgramCache]: Analyzing trace with hash 344016224, now seen corresponding path program 1 times [2018-11-18 21:32:04,153 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:32:04,153 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 [2018-11-18 21:32:04,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:32:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:32:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:32:04,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:32:04,489 INFO L256 TraceCheckUtils]: 0: Hoare triple {82936#true} call ULTIMATE.init(); {82936#true} is VALID [2018-11-18 21:32:04,489 INFO L273 TraceCheckUtils]: 1: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,490 INFO L273 TraceCheckUtils]: 2: Hoare triple {82936#true} assume true; {82936#true} is VALID [2018-11-18 21:32:04,490 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {82936#true} {82936#true} #1158#return; {82936#true} is VALID [2018-11-18 21:32:04,490 INFO L256 TraceCheckUtils]: 4: Hoare triple {82936#true} call #t~ret166 := main(); {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L273 TraceCheckUtils]: 5: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L256 TraceCheckUtils]: 6: Hoare triple {82936#true} call _BLAST_init(); {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L273 TraceCheckUtils]: 7: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L273 TraceCheckUtils]: 8: Hoare triple {82936#true} assume true; {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {82936#true} {82936#true} #1066#return; {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L273 TraceCheckUtils]: 10: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,491 INFO L273 TraceCheckUtils]: 11: Hoare triple {82936#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L256 TraceCheckUtils]: 12: Hoare triple {82936#true} call stub_driver_init(); {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 13: Hoare triple {82936#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 14: Hoare triple {82936#true} assume true; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {82936#true} {82936#true} #1068#return; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 16: Hoare triple {82936#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 17: Hoare triple {82936#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 18: Hoare triple {82936#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {82936#true} is VALID [2018-11-18 21:32:04,492 INFO L273 TraceCheckUtils]: 19: Hoare triple {82936#true} assume 2bv32 == ~tmp_ndt_3~0; {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L256 TraceCheckUtils]: 20: Hoare triple {82936#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 21: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 22: Hoare triple {82936#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 23: Hoare triple {82936#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 24: Hoare triple {82936#true} assume 0bv32 == ~disketteExtension__IsStarted~2; {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 25: Hoare triple {82936#true} assume ~s~0 == ~NP~0;~s~0 := ~SKIP1~0; {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 26: Hoare triple {82936#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; {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L256 TraceCheckUtils]: 27: Hoare triple {82936#true} call #t~ret154 := IofCallDriver(~disketteExtension__TargetObject~2, ~Irp); {82936#true} is VALID [2018-11-18 21:32:04,493 INFO L273 TraceCheckUtils]: 28: Hoare triple {82936#true} ~DeviceObject := #in~DeviceObject;~Irp := #in~Irp;havoc ~returnVal2~0;havoc ~compRetStatus1~0;~lcontext~0 := #t~nondet103;havoc #t~nondet103;havoc ~__cil_tmp7~0; {82936#true} is VALID [2018-11-18 21:32:04,494 INFO L273 TraceCheckUtils]: 29: Hoare triple {82936#true} assume !(0bv32 != ~compRegistered~0); {82936#true} is VALID [2018-11-18 21:32:04,494 INFO L273 TraceCheckUtils]: 30: Hoare triple {82936#true} havoc ~tmp_ndt_10~0;~tmp_ndt_10~0 := #t~nondet105;havoc #t~nondet105; {82936#true} is VALID [2018-11-18 21:32:04,494 INFO L273 TraceCheckUtils]: 31: Hoare triple {82936#true} assume 0bv32 == ~tmp_ndt_10~0; {82936#true} is VALID [2018-11-18 21:32:04,494 INFO L273 TraceCheckUtils]: 32: Hoare triple {82936#true} ~returnVal2~0 := 0bv32; {82936#true} is VALID [2018-11-18 21:32:04,494 INFO L273 TraceCheckUtils]: 33: Hoare triple {82936#true} assume ~s~0 == ~NP~0;~s~0 := ~IPC~0;~lowerDriverReturn~0 := ~returnVal2~0; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,495 INFO L273 TraceCheckUtils]: 34: Hoare triple {83040#(= ~IPC~0 ~s~0)} #res := ~returnVal2~0; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,495 INFO L273 TraceCheckUtils]: 35: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume true; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,496 INFO L268 TraceCheckUtils]: 36: Hoare quadruple {83040#(= ~IPC~0 ~s~0)} {82936#true} #1136#return; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,496 INFO L273 TraceCheckUtils]: 37: Hoare triple {83040#(= ~IPC~0 ~s~0)} ~tmp~0 := #t~ret154;havoc #t~ret154;#res := ~tmp~0; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,496 INFO L273 TraceCheckUtils]: 38: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume true; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,497 INFO L268 TraceCheckUtils]: 39: Hoare quadruple {83040#(= ~IPC~0 ~s~0)} {82936#true} #1074#return; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,497 INFO L273 TraceCheckUtils]: 40: Hoare triple {83040#(= ~IPC~0 ~s~0)} ~status~1 := #t~ret95;havoc #t~ret95; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,498 INFO L273 TraceCheckUtils]: 41: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume !(1bv32 == ~pended~0); {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,498 INFO L273 TraceCheckUtils]: 42: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume !(1bv32 == ~pended~0); {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,498 INFO L273 TraceCheckUtils]: 43: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume ~s~0 != ~UNLOADED~0; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,499 INFO L273 TraceCheckUtils]: 44: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume 4294967295bv32 != ~status~1; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,499 INFO L273 TraceCheckUtils]: 45: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume ~s~0 != ~SKIP2~0; {83040#(= ~IPC~0 ~s~0)} is VALID [2018-11-18 21:32:04,500 INFO L273 TraceCheckUtils]: 46: Hoare triple {83040#(= ~IPC~0 ~s~0)} assume ~s~0 != ~IPC~0; {82937#false} is VALID [2018-11-18 21:32:04,500 INFO L273 TraceCheckUtils]: 47: Hoare triple {82937#false} assume ~s~0 != ~DC~0; {82937#false} is VALID [2018-11-18 21:32:04,500 INFO L256 TraceCheckUtils]: 48: Hoare triple {82937#false} call errorFn(); {82937#false} is VALID [2018-11-18 21:32:04,500 INFO L273 TraceCheckUtils]: 49: Hoare triple {82937#false} assume !false; {82937#false} is VALID [2018-11-18 21:32:04,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:32:04,503 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:32:04,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:32:04,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 21:32:04,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-11-18 21:32:04,505 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:32:04,505 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 21:32:04,579 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:32:04,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 21:32:04,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 21:32:04,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:32:04,580 INFO L87 Difference]: Start difference. First operand 614 states and 793 transitions. Second operand 3 states. [2018-11-18 21:32:08,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:32:08,400 INFO L93 Difference]: Finished difference Result 823 states and 1071 transitions. [2018-11-18 21:32:08,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 21:32:08,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2018-11-18 21:32:08,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 21:32:08,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:32:08,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2018-11-18 21:32:08,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 21:32:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 719 transitions. [2018-11-18 21:32:08,411 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 719 transitions. [2018-11-18 21:32:09,168 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 719 edges. 719 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:32:09,202 INFO L225 Difference]: With dead ends: 823 [2018-11-18 21:32:09,202 INFO L226 Difference]: Without dead ends: 811 [2018-11-18 21:32:09,203 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 21:32:09,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2018-11-18 21:32:12,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 677. [2018-11-18 21:32:12,428 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 21:32:12,428 INFO L82 GeneralOperation]: Start isEquivalent. First operand 811 states. Second operand 677 states. [2018-11-18 21:32:12,428 INFO L74 IsIncluded]: Start isIncluded. First operand 811 states. Second operand 677 states. [2018-11-18 21:32:12,429 INFO L87 Difference]: Start difference. First operand 811 states. Second operand 677 states. [2018-11-18 21:32:12,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:32:12,457 INFO L93 Difference]: Finished difference Result 811 states and 1056 transitions. [2018-11-18 21:32:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1056 transitions. [2018-11-18 21:32:12,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:32:12,458 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:32:12,459 INFO L74 IsIncluded]: Start isIncluded. First operand 677 states. Second operand 811 states. [2018-11-18 21:32:12,459 INFO L87 Difference]: Start difference. First operand 677 states. Second operand 811 states. [2018-11-18 21:32:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 21:32:12,489 INFO L93 Difference]: Finished difference Result 811 states and 1056 transitions. [2018-11-18 21:32:12,489 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1056 transitions. [2018-11-18 21:32:12,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 21:32:12,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 21:32:12,490 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 21:32:12,490 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 21:32:12,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2018-11-18 21:32:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 871 transitions. [2018-11-18 21:32:12,512 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 871 transitions. Word has length 50 [2018-11-18 21:32:12,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 21:32:12,513 INFO L480 AbstractCegarLoop]: Abstraction has 677 states and 871 transitions. [2018-11-18 21:32:12,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 21:32:12,513 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 871 transitions. [2018-11-18 21:32:12,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-18 21:32:12,513 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 21:32:12,514 INFO L375 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] [2018-11-18 21:32:12,514 INFO L423 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 21:32:12,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 21:32:12,514 INFO L82 PathProgramCache]: Analyzing trace with hash -37148420, now seen corresponding path program 1 times [2018-11-18 21:32:12,514 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 21:32:12,515 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 23 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 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 21:32:12,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 21:32:12,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:32:12,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 21:32:12,688 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 21:32:12,791 INFO L256 TraceCheckUtils]: 0: Hoare triple {86730#true} call ULTIMATE.init(); {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L273 TraceCheckUtils]: 1: Hoare triple {86730#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; {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L273 TraceCheckUtils]: 2: Hoare triple {86730#true} assume true; {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {86730#true} {86730#true} #1158#return; {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L256 TraceCheckUtils]: 4: Hoare triple {86730#true} call #t~ret166 := main(); {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L273 TraceCheckUtils]: 5: Hoare triple {86730#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; {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L256 TraceCheckUtils]: 6: Hoare triple {86730#true} call _BLAST_init(); {86730#true} is VALID [2018-11-18 21:32:12,792 INFO L273 TraceCheckUtils]: 7: Hoare triple {86730#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; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L273 TraceCheckUtils]: 8: Hoare triple {86730#true} assume true; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L268 TraceCheckUtils]: 9: Hoare quadruple {86730#true} {86730#true} #1066#return; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L273 TraceCheckUtils]: 10: Hoare triple {86730#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; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L273 TraceCheckUtils]: 11: Hoare triple {86730#true} assume 0bv32 == ~irp_choice~0;~pirp__IoStatus__Status~0 := 3221225659bv32;~myStatus~0 := 3221225659bv32; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L256 TraceCheckUtils]: 12: Hoare triple {86730#true} call stub_driver_init(); {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L273 TraceCheckUtils]: 13: Hoare triple {86730#true} ~s~0 := ~NP~0;~pended~0 := 0bv32;~compRegistered~0 := 0bv32;~lowerDriverReturn~0 := 0bv32;~setEventCalled~0 := 0bv32;~customIrp~0 := 0bv32; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L273 TraceCheckUtils]: 14: Hoare triple {86730#true} assume true; {86730#true} is VALID [2018-11-18 21:32:12,793 INFO L268 TraceCheckUtils]: 15: Hoare quadruple {86730#true} {86730#true} #1068#return; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 16: Hoare triple {86730#true} assume !~bvslt32(~status~1, 0bv32);havoc ~tmp_ndt_1~0;~tmp_ndt_1~0 := #t~nondet89;havoc #t~nondet89; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 17: Hoare triple {86730#true} assume !(0bv32 == ~tmp_ndt_1~0);havoc ~tmp_ndt_2~0;~tmp_ndt_2~0 := #t~nondet90;havoc #t~nondet90; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 18: Hoare triple {86730#true} assume !(1bv32 == ~tmp_ndt_2~0);havoc ~tmp_ndt_3~0;~tmp_ndt_3~0 := #t~nondet91;havoc #t~nondet91; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 19: Hoare triple {86730#true} assume 2bv32 == ~tmp_ndt_3~0; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L256 TraceCheckUtils]: 20: Hoare triple {86730#true} call #t~ret95 := FloppyDeviceControl(~devobj~0, ~pirp~0); {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 21: Hoare triple {86730#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; {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 22: Hoare triple {86730#true} assume !(0bv32 != ~disketteExtension__HoldNewRequests~2); {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 23: Hoare triple {86730#true} assume !(0bv32 != ~disketteExtension__IsRemoved~1); {86730#true} is VALID [2018-11-18 21:32:12,794 INFO L273 TraceCheckUtils]: 24: Hoare triple {86730#true} assume !(0bv32 == ~disketteExtension__IsStarted~2); {86730#true} is VALID [2018-11-18 21:32:12,795 INFO L273 TraceCheckUtils]: 25: Hoare triple {86730#true} assume ~irpSp__Parameters__DeviceIoControl__IoControlCode___1~0 == ~__cil_tmp44~1; {86730#true} is VALID [2018-11-18 21:32:12,795 INFO L273 TraceCheckUtils]: 26: Hoare triple {86730#true} assume ~bvslt32(~irpSp__Parameters__DeviceIoControl__OutputBufferLength~0, ~sizeof__MOUNTDEV_NAME~0);~ntStatus~3 := 3221225485bv32; {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,795 INFO L273 TraceCheckUtils]: 27: Hoare triple {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} ~__cil_tmp91~0 := ~ntStatus~3; {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,796 INFO L273 TraceCheckUtils]: 28: Hoare triple {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} assume 259bv32 != ~__cil_tmp91~0;~Irp__IoStatus__Status___0~0 := ~ntStatus~3;~myStatus~0 := ~ntStatus~3; {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,796 INFO L256 TraceCheckUtils]: 29: Hoare triple {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} call IofCompleteRequest(~Irp, 0bv32); {86730#true} is VALID [2018-11-18 21:32:12,796 INFO L273 TraceCheckUtils]: 30: Hoare triple {86730#true} ~Irp := #in~Irp;~PriorityBoost := #in~PriorityBoost; {86730#true} is VALID [2018-11-18 21:32:12,796 INFO L273 TraceCheckUtils]: 31: Hoare triple {86730#true} assume ~s~0 == ~NP~0;~s~0 := ~DC~0; {86730#true} is VALID [2018-11-18 21:32:12,796 INFO L273 TraceCheckUtils]: 32: Hoare triple {86730#true} assume true; {86730#true} is VALID [2018-11-18 21:32:12,797 INFO L268 TraceCheckUtils]: 33: Hoare quadruple {86730#true} {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} #1146#return; {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,797 INFO L273 TraceCheckUtils]: 34: Hoare triple {86813#(= (bvadd FloppyDeviceControl_~ntStatus~3 (_ bv1073741811 32)) (_ bv0 32))} #res := ~ntStatus~3; {86838#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} is VALID [2018-11-18 21:32:12,797 INFO L273 TraceCheckUtils]: 35: Hoare triple {86838#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} assume true; {86838#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} is VALID [2018-11-18 21:32:12,798 INFO L268 TraceCheckUtils]: 36: Hoare quadruple {86838#(= (_ bv3221225485 32) |FloppyDeviceControl_#res|)} {86730#true} #1074#return; {86845#(= (bvadd |main_#t~ret95| (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,799 INFO L273 TraceCheckUtils]: 37: Hoare triple {86845#(= (bvadd |main_#t~ret95| (_ bv1073741811 32)) (_ bv0 32))} ~status~1 := #t~ret95;havoc #t~ret95; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,800 INFO L273 TraceCheckUtils]: 38: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,800 INFO L273 TraceCheckUtils]: 39: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,801 INFO L273 TraceCheckUtils]: 40: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~UNLOADED~0; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,801 INFO L273 TraceCheckUtils]: 41: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume 4294967295bv32 != ~status~1; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,802 INFO L273 TraceCheckUtils]: 42: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~SKIP2~0; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,802 INFO L273 TraceCheckUtils]: 43: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 != ~IPC~0; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,803 INFO L273 TraceCheckUtils]: 44: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(~s~0 != ~DC~0); {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,803 INFO L273 TraceCheckUtils]: 45: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume !(1bv32 == ~pended~0); {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,804 INFO L273 TraceCheckUtils]: 46: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume ~s~0 == ~DC~0; {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} is VALID [2018-11-18 21:32:12,804 INFO L273 TraceCheckUtils]: 47: Hoare triple {86849#(= (bvadd main_~status~1 (_ bv1073741811 32)) (_ bv0 32))} assume 259bv32 == ~status~1; {86731#false} is VALID [2018-11-18 21:32:12,805 INFO L256 TraceCheckUtils]: 48: Hoare triple {86731#false} call errorFn(); {86731#false} is VALID [2018-11-18 21:32:12,805 INFO L273 TraceCheckUtils]: 49: Hoare triple {86731#false} assume !false; {86731#false} is VALID [2018-11-18 21:32:12,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 21:32:12,808 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 21:32:12,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 21:32:12,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 21:32:12,814 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-11-18 21:32:12,814 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 21:32:12,814 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 21:32:12,870 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 21:32:12,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 21:32:12,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 21:32:12,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 21:32:12,871 INFO L87 Difference]: Start difference. First operand 677 states and 871 transitions. Second operand 6 states.