/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:05:50,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:05:50,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:05:50,295 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:05:50,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:05:50,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:05:50,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:05:50,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:05:50,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:05:50,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:05:50,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:05:50,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:05:50,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:05:50,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:05:50,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:05:50,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:05:50,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:05:50,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:05:50,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:05:50,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:05:50,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:05:50,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:05:50,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:05:50,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:05:50,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 04:05:50,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 04:05:50,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 04:05:50,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 04:05:50,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 04:05:50,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 04:05:50,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 04:05:50,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 04:05:50,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 04:05:50,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 04:05:50,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 04:05:50,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 04:05:50,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 04:05:50,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 04:05:50,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:05:50,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:05:50,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:05:50,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 04:05:50,353 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:05:50,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:05:50,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:05:50,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:05:50,355 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:05:50,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:05:50,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:05:50,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:05:50,357 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:05:50,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:05:50,357 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:05:50,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:05:50,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:05:50,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:05:50,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:05:50,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:05:50,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:05:50,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:05:50,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:05:50,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:05:50,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:05:50,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:05:50,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:05:50,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 04:05:50,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:05:50,686 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:05:50,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:05:50,691 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:05:50,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:05:50,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-11-07 04:05:50,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0749eaf8/186826068e124130b7f26222fc00ba73/FLAG9705091d5 [2019-11-07 04:05:51,248 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:05:51,249 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-11-07 04:05:51,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0749eaf8/186826068e124130b7f26222fc00ba73/FLAG9705091d5 [2019-11-07 04:05:51,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0749eaf8/186826068e124130b7f26222fc00ba73 [2019-11-07 04:05:51,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:05:51,523 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:05:51,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:05:51,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:05:51,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:05:51,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:05:51" (1/1) ... [2019-11-07 04:05:51,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e14870a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:51, skipping insertion in model container [2019-11-07 04:05:51,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:05:51" (1/1) ... [2019-11-07 04:05:51,564 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:05:51,684 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:05:52,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:05:52,210 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:05:52,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:05:52,394 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:05:52,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52 WrapperNode [2019-11-07 04:05:52,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:05:52,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:05:52,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:05:52,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:05:52,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... [2019-11-07 04:05:52,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:05:52,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:05:52,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:05:52,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:05:52,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:05:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:05:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:05:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2019-11-07 04:05:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2019-11-07 04:05:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2019-11-07 04:05:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2019-11-07 04:05:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2019-11-07 04:05:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2019-11-07 04:05:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2019-11-07 04:05:52,583 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2019-11-07 04:05:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2019-11-07 04:05:52,584 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:05:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2019-11-07 04:05:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2019-11-07 04:05:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2019-11-07 04:05:52,585 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2019-11-07 04:05:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2019-11-07 04:05:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2019-11-07 04:05:52,587 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2019-11-07 04:05:52,588 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2019-11-07 04:05:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2019-11-07 04:05:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2019-11-07 04:05:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2019-11-07 04:05:52,589 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2019-11-07 04:05:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:05:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-07 04:05:52,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:05:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-11-07 04:05:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 04:05:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2019-11-07 04:05:52,590 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2019-11-07 04:05:52,591 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2019-11-07 04:05:52,592 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2019-11-07 04:05:52,593 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2019-11-07 04:05:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2019-11-07 04:05:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2019-11-07 04:05:52,594 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2019-11-07 04:05:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:05:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2019-11-07 04:05:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:05:52,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:05:52,965 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,041 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:53,041 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:53,049 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,067 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:53,067 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:53,074 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,399 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-11-07 04:05:53,399 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2019-11-07 04:05:53,405 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,512 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2019-11-07 04:05:53,513 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2019-11-07 04:05:53,535 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,566 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-11-07 04:05:53,567 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-11-07 04:05:53,678 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:53,689 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:53,690 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,721 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:53,721 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:53,722 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,731 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:53,731 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:53,773 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,812 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2019-11-07 04:05:53,812 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2019-11-07 04:05:53,815 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:53,966 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2019-11-07 04:05:53,967 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2019-11-07 04:05:54,017 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:54,024 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:54,024 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:54,025 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:54,039 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:54,040 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:54,040 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-07 04:05:54,048 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-11-07 04:05:54,049 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-11-07 04:05:54,477 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:05:54,477 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 04:05:54,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:05:54 BoogieIcfgContainer [2019-11-07 04:05:54,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:05:54,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:05:54,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:05:54,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:05:54,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:05:51" (1/3) ... [2019-11-07 04:05:54,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f4465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:05:54, skipping insertion in model container [2019-11-07 04:05:54,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:05:52" (2/3) ... [2019-11-07 04:05:54,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62f4465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:05:54, skipping insertion in model container [2019-11-07 04:05:54,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:05:54" (3/3) ... [2019-11-07 04:05:54,492 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2019-11-07 04:05:54,503 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:05:54,515 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:05:54,528 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:05:54,574 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:05:54,574 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:05:54,574 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:05:54,575 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:05:54,576 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:05:54,577 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:05:54,577 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:05:54,577 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:05:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2019-11-07 04:05:54,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-07 04:05:54,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:54,620 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:05:54,622 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:54,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:54,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1185276521, now seen corresponding path program 1 times [2019-11-07 04:05:54,642 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:54,642 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155630991] [2019-11-07 04:05:54,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:54,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:54,910 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155630991] [2019-11-07 04:05:54,911 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:54,912 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:54,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107565489] [2019-11-07 04:05:54,918 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:54,918 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:54,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:54,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:54,936 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2019-11-07 04:05:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:55,100 INFO L93 Difference]: Finished difference Result 496 states and 730 transitions. [2019-11-07 04:05:55,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:55,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-11-07 04:05:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:55,118 INFO L225 Difference]: With dead ends: 496 [2019-11-07 04:05:55,119 INFO L226 Difference]: Without dead ends: 300 [2019-11-07 04:05:55,125 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-11-07 04:05:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-11-07 04:05:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-11-07 04:05:55,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 408 transitions. [2019-11-07 04:05:55,205 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 408 transitions. Word has length 18 [2019-11-07 04:05:55,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:55,205 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 408 transitions. [2019-11-07 04:05:55,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 408 transitions. [2019-11-07 04:05:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-07 04:05:55,208 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:55,208 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:05:55,208 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:55,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:55,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1685353303, now seen corresponding path program 1 times [2019-11-07 04:05:55,209 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:55,209 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123504013] [2019-11-07 04:05:55,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:55,325 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123504013] [2019-11-07 04:05:55,325 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:55,325 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:55,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954529561] [2019-11-07 04:05:55,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:55,329 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:55,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:55,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,330 INFO L87 Difference]: Start difference. First operand 300 states and 408 transitions. Second operand 3 states. [2019-11-07 04:05:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:55,573 INFO L93 Difference]: Finished difference Result 516 states and 690 transitions. [2019-11-07 04:05:55,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:55,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-11-07 04:05:55,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:55,579 INFO L225 Difference]: With dead ends: 516 [2019-11-07 04:05:55,579 INFO L226 Difference]: Without dead ends: 387 [2019-11-07 04:05:55,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-11-07 04:05:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 368. [2019-11-07 04:05:55,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-11-07 04:05:55,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 488 transitions. [2019-11-07 04:05:55,618 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 488 transitions. Word has length 21 [2019-11-07 04:05:55,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:55,619 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 488 transitions. [2019-11-07 04:05:55,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:55,619 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2019-11-07 04:05:55,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-07 04:05:55,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:55,621 INFO L410 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] [2019-11-07 04:05:55,621 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:55,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:55,622 INFO L82 PathProgramCache]: Analyzing trace with hash -915073831, now seen corresponding path program 1 times [2019-11-07 04:05:55,622 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:55,622 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571905834] [2019-11-07 04:05:55,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:55,708 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571905834] [2019-11-07 04:05:55,708 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:55,708 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:55,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279752339] [2019-11-07 04:05:55,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:55,710 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:55,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:55,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,711 INFO L87 Difference]: Start difference. First operand 368 states and 488 transitions. Second operand 3 states. [2019-11-07 04:05:55,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:55,781 INFO L93 Difference]: Finished difference Result 466 states and 611 transitions. [2019-11-07 04:05:55,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:55,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-07 04:05:55,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:55,786 INFO L225 Difference]: With dead ends: 466 [2019-11-07 04:05:55,786 INFO L226 Difference]: Without dead ends: 445 [2019-11-07 04:05:55,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-11-07 04:05:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 429. [2019-11-07 04:05:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-11-07 04:05:55,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 564 transitions. [2019-11-07 04:05:55,849 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 564 transitions. Word has length 26 [2019-11-07 04:05:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:55,850 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 564 transitions. [2019-11-07 04:05:55,850 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:55,850 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 564 transitions. [2019-11-07 04:05:55,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-07 04:05:55,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:55,860 INFO L410 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] [2019-11-07 04:05:55,860 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:55,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:55,860 INFO L82 PathProgramCache]: Analyzing trace with hash -218053855, now seen corresponding path program 1 times [2019-11-07 04:05:55,860 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:55,861 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235247668] [2019-11-07 04:05:55,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:55,939 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235247668] [2019-11-07 04:05:55,939 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:55,939 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:55,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867766774] [2019-11-07 04:05:55,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:55,940 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:55,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:55,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:55,940 INFO L87 Difference]: Start difference. First operand 429 states and 564 transitions. Second operand 3 states. [2019-11-07 04:05:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,000 INFO L93 Difference]: Finished difference Result 769 states and 1008 transitions. [2019-11-07 04:05:56,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:56,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-07 04:05:56,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,006 INFO L225 Difference]: With dead ends: 769 [2019-11-07 04:05:56,006 INFO L226 Difference]: Without dead ends: 568 [2019-11-07 04:05:56,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-11-07 04:05:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 542. [2019-11-07 04:05:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-11-07 04:05:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 717 transitions. [2019-11-07 04:05:56,063 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 717 transitions. Word has length 27 [2019-11-07 04:05:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:56,064 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 717 transitions. [2019-11-07 04:05:56,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:56,064 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 717 transitions. [2019-11-07 04:05:56,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-07 04:05:56,067 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:56,067 INFO L410 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] [2019-11-07 04:05:56,067 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:56,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:56,067 INFO L82 PathProgramCache]: Analyzing trace with hash 477972724, now seen corresponding path program 1 times [2019-11-07 04:05:56,068 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:56,068 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830741514] [2019-11-07 04:05:56,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:56,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:56,189 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830741514] [2019-11-07 04:05:56,189 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:56,189 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:56,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609599923] [2019-11-07 04:05:56,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:56,190 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:56,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:56,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,191 INFO L87 Difference]: Start difference. First operand 542 states and 717 transitions. Second operand 3 states. [2019-11-07 04:05:56,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,307 INFO L93 Difference]: Finished difference Result 551 states and 728 transitions. [2019-11-07 04:05:56,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:56,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-11-07 04:05:56,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,313 INFO L225 Difference]: With dead ends: 551 [2019-11-07 04:05:56,313 INFO L226 Difference]: Without dead ends: 548 [2019-11-07 04:05:56,313 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-11-07 04:05:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2019-11-07 04:05:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-11-07 04:05:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 724 transitions. [2019-11-07 04:05:56,342 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 724 transitions. Word has length 32 [2019-11-07 04:05:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:56,342 INFO L462 AbstractCegarLoop]: Abstraction has 548 states and 724 transitions. [2019-11-07 04:05:56,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 724 transitions. [2019-11-07 04:05:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-07 04:05:56,344 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:56,344 INFO L410 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] [2019-11-07 04:05:56,344 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:56,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:56,345 INFO L82 PathProgramCache]: Analyzing trace with hash 365807463, now seen corresponding path program 1 times [2019-11-07 04:05:56,345 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:56,345 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403468727] [2019-11-07 04:05:56,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:56,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:56,382 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403468727] [2019-11-07 04:05:56,382 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:56,382 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:56,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790981993] [2019-11-07 04:05:56,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:56,383 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:56,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:56,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,384 INFO L87 Difference]: Start difference. First operand 548 states and 724 transitions. Second operand 3 states. [2019-11-07 04:05:56,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,461 INFO L93 Difference]: Finished difference Result 588 states and 772 transitions. [2019-11-07 04:05:56,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:56,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-11-07 04:05:56,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,465 INFO L225 Difference]: With dead ends: 588 [2019-11-07 04:05:56,466 INFO L226 Difference]: Without dead ends: 583 [2019-11-07 04:05:56,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-11-07 04:05:56,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 579. [2019-11-07 04:05:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-11-07 04:05:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 762 transitions. [2019-11-07 04:05:56,494 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 762 transitions. Word has length 34 [2019-11-07 04:05:56,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:56,494 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 762 transitions. [2019-11-07 04:05:56,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:56,495 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 762 transitions. [2019-11-07 04:05:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-07 04:05:56,496 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:56,496 INFO L410 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] [2019-11-07 04:05:56,496 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:56,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:56,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1092268321, now seen corresponding path program 1 times [2019-11-07 04:05:56,497 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:56,497 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330628979] [2019-11-07 04:05:56,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:56,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:56,540 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330628979] [2019-11-07 04:05:56,540 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:56,540 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:05:56,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807585665] [2019-11-07 04:05:56,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:05:56,541 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:56,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:05:56,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:05:56,542 INFO L87 Difference]: Start difference. First operand 579 states and 762 transitions. Second operand 5 states. [2019-11-07 04:05:56,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,604 INFO L93 Difference]: Finished difference Result 592 states and 776 transitions. [2019-11-07 04:05:56,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:05:56,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-07 04:05:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,609 INFO L225 Difference]: With dead ends: 592 [2019-11-07 04:05:56,609 INFO L226 Difference]: Without dead ends: 577 [2019-11-07 04:05:56,610 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:05:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-11-07 04:05:56,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-11-07 04:05:56,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-11-07 04:05:56,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 758 transitions. [2019-11-07 04:05:56,648 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 758 transitions. Word has length 35 [2019-11-07 04:05:56,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:56,649 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 758 transitions. [2019-11-07 04:05:56,649 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:05:56,649 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 758 transitions. [2019-11-07 04:05:56,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-07 04:05:56,651 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:56,651 INFO L410 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] [2019-11-07 04:05:56,652 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:56,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:56,652 INFO L82 PathProgramCache]: Analyzing trace with hash 625993510, now seen corresponding path program 1 times [2019-11-07 04:05:56,652 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:56,652 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57781610] [2019-11-07 04:05:56,653 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:56,699 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57781610] [2019-11-07 04:05:56,701 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:56,701 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:05:56,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462638908] [2019-11-07 04:05:56,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:05:56,702 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:56,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:05:56,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:05:56,703 INFO L87 Difference]: Start difference. First operand 577 states and 758 transitions. Second operand 5 states. [2019-11-07 04:05:56,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,757 INFO L93 Difference]: Finished difference Result 590 states and 772 transitions. [2019-11-07 04:05:56,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:05:56,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-11-07 04:05:56,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,762 INFO L225 Difference]: With dead ends: 590 [2019-11-07 04:05:56,762 INFO L226 Difference]: Without dead ends: 571 [2019-11-07 04:05:56,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:05:56,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-11-07 04:05:56,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2019-11-07 04:05:56,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-11-07 04:05:56,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 750 transitions. [2019-11-07 04:05:56,790 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 750 transitions. Word has length 34 [2019-11-07 04:05:56,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:56,791 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 750 transitions. [2019-11-07 04:05:56,791 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:05:56,791 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 750 transitions. [2019-11-07 04:05:56,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-07 04:05:56,793 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:56,794 INFO L410 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] [2019-11-07 04:05:56,794 INFO L410 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:56,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:56,794 INFO L82 PathProgramCache]: Analyzing trace with hash 765744359, now seen corresponding path program 1 times [2019-11-07 04:05:56,795 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:56,795 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779145683] [2019-11-07 04:05:56,795 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:56,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:56,889 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779145683] [2019-11-07 04:05:56,892 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:56,892 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:56,892 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807492100] [2019-11-07 04:05:56,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:56,893 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:56,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:56,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:56,893 INFO L87 Difference]: Start difference. First operand 571 states and 750 transitions. Second operand 3 states. [2019-11-07 04:05:56,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:56,994 INFO L93 Difference]: Finished difference Result 729 states and 970 transitions. [2019-11-07 04:05:56,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:56,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-11-07 04:05:56,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:56,999 INFO L225 Difference]: With dead ends: 729 [2019-11-07 04:05:56,999 INFO L226 Difference]: Without dead ends: 726 [2019-11-07 04:05:57,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:57,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-11-07 04:05:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 617. [2019-11-07 04:05:57,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2019-11-07 04:05:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 814 transitions. [2019-11-07 04:05:57,030 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 814 transitions. Word has length 38 [2019-11-07 04:05:57,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:57,030 INFO L462 AbstractCegarLoop]: Abstraction has 617 states and 814 transitions. [2019-11-07 04:05:57,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:57,031 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 814 transitions. [2019-11-07 04:05:57,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-07 04:05:57,032 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:57,032 INFO L410 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] [2019-11-07 04:05:57,032 INFO L410 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2025179122, now seen corresponding path program 1 times [2019-11-07 04:05:57,033 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:57,033 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672429692] [2019-11-07 04:05:57,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:57,147 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672429692] [2019-11-07 04:05:57,147 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:57,147 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:05:57,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187551220] [2019-11-07 04:05:57,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:05:57,149 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:57,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:05:57,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:05:57,150 INFO L87 Difference]: Start difference. First operand 617 states and 814 transitions. Second operand 8 states. [2019-11-07 04:05:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:57,995 INFO L93 Difference]: Finished difference Result 826 states and 1088 transitions. [2019-11-07 04:05:57,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:05:57,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-07 04:05:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:58,001 INFO L225 Difference]: With dead ends: 826 [2019-11-07 04:05:58,001 INFO L226 Difference]: Without dead ends: 748 [2019-11-07 04:05:58,004 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:05:58,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2019-11-07 04:05:58,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 611. [2019-11-07 04:05:58,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-11-07 04:05:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 800 transitions. [2019-11-07 04:05:58,039 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 800 transitions. Word has length 39 [2019-11-07 04:05:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:58,039 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 800 transitions. [2019-11-07 04:05:58,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:05:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 800 transitions. [2019-11-07 04:05:58,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-07 04:05:58,042 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:58,042 INFO L410 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] [2019-11-07 04:05:58,042 INFO L410 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:58,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1892539206, now seen corresponding path program 1 times [2019-11-07 04:05:58,046 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:58,046 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349287785] [2019-11-07 04:05:58,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:58,119 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349287785] [2019-11-07 04:05:58,119 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:58,119 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:05:58,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486248532] [2019-11-07 04:05:58,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:05:58,120 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:58,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:05:58,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:05:58,121 INFO L87 Difference]: Start difference. First operand 611 states and 800 transitions. Second operand 4 states. [2019-11-07 04:05:58,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:58,190 INFO L93 Difference]: Finished difference Result 639 states and 833 transitions. [2019-11-07 04:05:58,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:05:58,190 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-11-07 04:05:58,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:58,194 INFO L225 Difference]: With dead ends: 639 [2019-11-07 04:05:58,194 INFO L226 Difference]: Without dead ends: 617 [2019-11-07 04:05:58,195 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:05:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2019-11-07 04:05:58,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 613. [2019-11-07 04:05:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-11-07 04:05:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 802 transitions. [2019-11-07 04:05:58,225 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 802 transitions. Word has length 37 [2019-11-07 04:05:58,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:58,226 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 802 transitions. [2019-11-07 04:05:58,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:05:58,226 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 802 transitions. [2019-11-07 04:05:58,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-07 04:05:58,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:58,229 INFO L410 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] [2019-11-07 04:05:58,229 INFO L410 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:58,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:58,229 INFO L82 PathProgramCache]: Analyzing trace with hash -962951765, now seen corresponding path program 1 times [2019-11-07 04:05:58,230 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:58,230 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871037113] [2019-11-07 04:05:58,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:58,339 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871037113] [2019-11-07 04:05:58,340 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:58,340 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:05:58,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239817216] [2019-11-07 04:05:58,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:05:58,341 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:05:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:05:58,341 INFO L87 Difference]: Start difference. First operand 613 states and 802 transitions. Second operand 8 states. [2019-11-07 04:05:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:59,031 INFO L93 Difference]: Finished difference Result 640 states and 830 transitions. [2019-11-07 04:05:59,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:05:59,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-11-07 04:05:59,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:59,035 INFO L225 Difference]: With dead ends: 640 [2019-11-07 04:05:59,035 INFO L226 Difference]: Without dead ends: 631 [2019-11-07 04:05:59,036 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:05:59,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-11-07 04:05:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 613. [2019-11-07 04:05:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-11-07 04:05:59,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 800 transitions. [2019-11-07 04:05:59,069 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 800 transitions. Word has length 39 [2019-11-07 04:05:59,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:59,070 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 800 transitions. [2019-11-07 04:05:59,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:05:59,070 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 800 transitions. [2019-11-07 04:05:59,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-07 04:05:59,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:59,072 INFO L410 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] [2019-11-07 04:05:59,072 INFO L410 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:59,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:59,072 INFO L82 PathProgramCache]: Analyzing trace with hash -675985017, now seen corresponding path program 1 times [2019-11-07 04:05:59,073 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:59,073 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927614290] [2019-11-07 04:05:59,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:59,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:59,146 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927614290] [2019-11-07 04:05:59,146 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:59,146 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:05:59,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723393237] [2019-11-07 04:05:59,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:05:59,147 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:59,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:05:59,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:05:59,148 INFO L87 Difference]: Start difference. First operand 613 states and 800 transitions. Second operand 8 states. [2019-11-07 04:05:59,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:59,797 INFO L93 Difference]: Finished difference Result 640 states and 827 transitions. [2019-11-07 04:05:59,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:05:59,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-11-07 04:05:59,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:59,803 INFO L225 Difference]: With dead ends: 640 [2019-11-07 04:05:59,803 INFO L226 Difference]: Without dead ends: 631 [2019-11-07 04:05:59,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:05:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-11-07 04:05:59,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 613. [2019-11-07 04:05:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-11-07 04:05:59,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 798 transitions. [2019-11-07 04:05:59,838 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 798 transitions. Word has length 40 [2019-11-07 04:05:59,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:59,839 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 798 transitions. [2019-11-07 04:05:59,839 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:05:59,839 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 798 transitions. [2019-11-07 04:05:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-07 04:05:59,840 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:59,841 INFO L410 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] [2019-11-07 04:05:59,841 INFO L410 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:59,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:59,841 INFO L82 PathProgramCache]: Analyzing trace with hash -169617054, now seen corresponding path program 1 times [2019-11-07 04:05:59,842 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:59,842 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149689673] [2019-11-07 04:05:59,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:59,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:05:59,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:05:59,877 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149689673] [2019-11-07 04:05:59,878 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:05:59,878 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:05:59,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609945794] [2019-11-07 04:05:59,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:05:59,879 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:05:59,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:05:59,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:59,879 INFO L87 Difference]: Start difference. First operand 613 states and 798 transitions. Second operand 3 states. [2019-11-07 04:05:59,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:05:59,922 INFO L93 Difference]: Finished difference Result 643 states and 834 transitions. [2019-11-07 04:05:59,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:05:59,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-11-07 04:05:59,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:05:59,927 INFO L225 Difference]: With dead ends: 643 [2019-11-07 04:05:59,927 INFO L226 Difference]: Without dead ends: 606 [2019-11-07 04:05:59,928 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:05:59,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2019-11-07 04:05:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 602. [2019-11-07 04:05:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-11-07 04:05:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 779 transitions. [2019-11-07 04:05:59,967 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 779 transitions. Word has length 40 [2019-11-07 04:05:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:05:59,968 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 779 transitions. [2019-11-07 04:05:59,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:05:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 779 transitions. [2019-11-07 04:05:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-07 04:05:59,970 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:05:59,970 INFO L410 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] [2019-11-07 04:05:59,970 INFO L410 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:05:59,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:05:59,971 INFO L82 PathProgramCache]: Analyzing trace with hash 574216916, now seen corresponding path program 1 times [2019-11-07 04:05:59,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:05:59,971 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14413340] [2019-11-07 04:05:59,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:05:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:00,047 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14413340] [2019-11-07 04:06:00,047 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:00,047 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:00,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937551381] [2019-11-07 04:06:00,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:00,049 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:00,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:00,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:00,049 INFO L87 Difference]: Start difference. First operand 602 states and 779 transitions. Second operand 5 states. [2019-11-07 04:06:00,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:00,092 INFO L93 Difference]: Finished difference Result 618 states and 794 transitions. [2019-11-07 04:06:00,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:00,092 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-11-07 04:06:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:00,096 INFO L225 Difference]: With dead ends: 618 [2019-11-07 04:06:00,096 INFO L226 Difference]: Without dead ends: 600 [2019-11-07 04:06:00,098 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-07 04:06:00,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-07 04:06:00,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-07 04:06:00,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 775 transitions. [2019-11-07 04:06:00,131 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 775 transitions. Word has length 41 [2019-11-07 04:06:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:00,131 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 775 transitions. [2019-11-07 04:06:00,131 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 775 transitions. [2019-11-07 04:06:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:06:00,133 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:00,133 INFO L410 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] [2019-11-07 04:06:00,133 INFO L410 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:00,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:00,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1755444174, now seen corresponding path program 1 times [2019-11-07 04:06:00,134 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:00,134 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889018627] [2019-11-07 04:06:00,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:00,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:00,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:00,203 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889018627] [2019-11-07 04:06:00,204 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:00,204 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 04:06:00,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434269836] [2019-11-07 04:06:00,204 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 04:06:00,205 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:00,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 04:06:00,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:06:00,205 INFO L87 Difference]: Start difference. First operand 600 states and 775 transitions. Second operand 4 states. [2019-11-07 04:06:00,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:00,392 INFO L93 Difference]: Finished difference Result 650 states and 819 transitions. [2019-11-07 04:06:00,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 04:06:00,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-11-07 04:06:00,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:00,395 INFO L225 Difference]: With dead ends: 650 [2019-11-07 04:06:00,395 INFO L226 Difference]: Without dead ends: 461 [2019-11-07 04:06:00,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 04:06:00,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-11-07 04:06:00,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 442. [2019-11-07 04:06:00,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-11-07 04:06:00,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 551 transitions. [2019-11-07 04:06:00,422 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 551 transitions. Word has length 43 [2019-11-07 04:06:00,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:00,423 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 551 transitions. [2019-11-07 04:06:00,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 04:06:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 551 transitions. [2019-11-07 04:06:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-07 04:06:00,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:00,424 INFO L410 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] [2019-11-07 04:06:00,425 INFO L410 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:00,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:00,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1072987595, now seen corresponding path program 1 times [2019-11-07 04:06:00,425 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:00,425 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198184701] [2019-11-07 04:06:00,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:00,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:00,483 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198184701] [2019-11-07 04:06:00,484 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:00,484 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:00,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836723451] [2019-11-07 04:06:00,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:00,484 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:00,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:00,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:00,485 INFO L87 Difference]: Start difference. First operand 442 states and 551 transitions. Second operand 5 states. [2019-11-07 04:06:00,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:00,525 INFO L93 Difference]: Finished difference Result 458 states and 566 transitions. [2019-11-07 04:06:00,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:00,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-11-07 04:06:00,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:00,528 INFO L225 Difference]: With dead ends: 458 [2019-11-07 04:06:00,528 INFO L226 Difference]: Without dead ends: 440 [2019-11-07 04:06:00,529 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:00,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-11-07 04:06:00,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2019-11-07 04:06:00,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-11-07 04:06:00,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 547 transitions. [2019-11-07 04:06:00,551 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 547 transitions. Word has length 41 [2019-11-07 04:06:00,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:00,552 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 547 transitions. [2019-11-07 04:06:00,552 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:00,552 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 547 transitions. [2019-11-07 04:06:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-11-07 04:06:00,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:00,553 INFO L410 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] [2019-11-07 04:06:00,554 INFO L410 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:00,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:00,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1901639222, now seen corresponding path program 1 times [2019-11-07 04:06:00,554 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:00,554 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027804886] [2019-11-07 04:06:00,554 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:00,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:00,595 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027804886] [2019-11-07 04:06:00,595 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:00,595 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:06:00,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575079422] [2019-11-07 04:06:00,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:06:00,596 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:00,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:06:00,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:00,596 INFO L87 Difference]: Start difference. First operand 440 states and 547 transitions. Second operand 3 states. [2019-11-07 04:06:00,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:00,697 INFO L93 Difference]: Finished difference Result 601 states and 761 transitions. [2019-11-07 04:06:00,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:06:00,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-11-07 04:06:00,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:00,701 INFO L225 Difference]: With dead ends: 601 [2019-11-07 04:06:00,702 INFO L226 Difference]: Without dead ends: 589 [2019-11-07 04:06:00,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:00,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2019-11-07 04:06:00,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 489. [2019-11-07 04:06:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-11-07 04:06:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 607 transitions. [2019-11-07 04:06:00,729 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 607 transitions. Word has length 43 [2019-11-07 04:06:00,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:00,730 INFO L462 AbstractCegarLoop]: Abstraction has 489 states and 607 transitions. [2019-11-07 04:06:00,730 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:06:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 607 transitions. [2019-11-07 04:06:00,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-11-07 04:06:00,731 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:00,731 INFO L410 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] [2019-11-07 04:06:00,732 INFO L410 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:00,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1050847397, now seen corresponding path program 1 times [2019-11-07 04:06:00,732 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:00,732 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591037871] [2019-11-07 04:06:00,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:00,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:00,782 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591037871] [2019-11-07 04:06:00,782 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:00,782 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:06:00,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906668154] [2019-11-07 04:06:00,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:06:00,783 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:00,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:06:00,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:00,784 INFO L87 Difference]: Start difference. First operand 489 states and 607 transitions. Second operand 3 states. [2019-11-07 04:06:00,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:00,896 INFO L93 Difference]: Finished difference Result 670 states and 839 transitions. [2019-11-07 04:06:00,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:06:00,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-11-07 04:06:00,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:00,899 INFO L225 Difference]: With dead ends: 670 [2019-11-07 04:06:00,899 INFO L226 Difference]: Without dead ends: 492 [2019-11-07 04:06:00,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:00,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-11-07 04:06:00,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2019-11-07 04:06:00,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2019-11-07 04:06:00,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2019-11-07 04:06:00,925 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 611 transitions. Word has length 51 [2019-11-07 04:06:00,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:00,925 INFO L462 AbstractCegarLoop]: Abstraction has 492 states and 611 transitions. [2019-11-07 04:06:00,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:06:00,926 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 611 transitions. [2019-11-07 04:06:00,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-07 04:06:00,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:00,927 INFO L410 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] [2019-11-07 04:06:00,927 INFO L410 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:00,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:00,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1631605306, now seen corresponding path program 1 times [2019-11-07 04:06:00,928 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:00,928 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457382070] [2019-11-07 04:06:00,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:00,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:01,037 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457382070] [2019-11-07 04:06:01,037 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:01,037 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:06:01,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288163519] [2019-11-07 04:06:01,038 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:06:01,038 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:01,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:06:01,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:01,039 INFO L87 Difference]: Start difference. First operand 492 states and 611 transitions. Second operand 10 states. [2019-11-07 04:06:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:02,708 INFO L93 Difference]: Finished difference Result 617 states and 775 transitions. [2019-11-07 04:06:02,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-07 04:06:02,709 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2019-11-07 04:06:02,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:02,713 INFO L225 Difference]: With dead ends: 617 [2019-11-07 04:06:02,714 INFO L226 Difference]: Without dead ends: 606 [2019-11-07 04:06:02,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2019-11-07 04:06:02,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2019-11-07 04:06:02,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 530. [2019-11-07 04:06:02,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-11-07 04:06:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 653 transitions. [2019-11-07 04:06:02,756 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 653 transitions. Word has length 44 [2019-11-07 04:06:02,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:02,756 INFO L462 AbstractCegarLoop]: Abstraction has 530 states and 653 transitions. [2019-11-07 04:06:02,756 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:06:02,756 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 653 transitions. [2019-11-07 04:06:02,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-07 04:06:02,758 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:02,759 INFO L410 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] [2019-11-07 04:06:02,759 INFO L410 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:02,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:02,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1620124305, now seen corresponding path program 1 times [2019-11-07 04:06:02,760 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:02,760 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236299692] [2019-11-07 04:06:02,760 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:02,840 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236299692] [2019-11-07 04:06:02,840 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:02,840 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:06:02,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826453536] [2019-11-07 04:06:02,841 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:06:02,841 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:02,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:06:02,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:02,841 INFO L87 Difference]: Start difference. First operand 530 states and 653 transitions. Second operand 7 states. [2019-11-07 04:06:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:03,482 INFO L93 Difference]: Finished difference Result 610 states and 753 transitions. [2019-11-07 04:06:03,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 04:06:03,483 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2019-11-07 04:06:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:03,485 INFO L225 Difference]: With dead ends: 610 [2019-11-07 04:06:03,486 INFO L226 Difference]: Without dead ends: 545 [2019-11-07 04:06:03,486 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-11-07 04:06:03,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-11-07 04:06:03,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 541. [2019-11-07 04:06:03,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2019-11-07 04:06:03,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 665 transitions. [2019-11-07 04:06:03,517 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 665 transitions. Word has length 44 [2019-11-07 04:06:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:03,517 INFO L462 AbstractCegarLoop]: Abstraction has 541 states and 665 transitions. [2019-11-07 04:06:03,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:06:03,517 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 665 transitions. [2019-11-07 04:06:03,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-07 04:06:03,519 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:03,519 INFO L410 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] [2019-11-07 04:06:03,519 INFO L410 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:03,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1246355178, now seen corresponding path program 1 times [2019-11-07 04:06:03,520 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:03,520 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382602587] [2019-11-07 04:06:03,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:03,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:03,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:03,664 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382602587] [2019-11-07 04:06:03,664 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:03,665 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:06:03,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855898538] [2019-11-07 04:06:03,665 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:06:03,665 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:03,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:06:03,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:03,666 INFO L87 Difference]: Start difference. First operand 541 states and 665 transitions. Second operand 7 states. [2019-11-07 04:06:03,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:03,814 INFO L93 Difference]: Finished difference Result 570 states and 693 transitions. [2019-11-07 04:06:03,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:03,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-11-07 04:06:03,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:03,818 INFO L225 Difference]: With dead ends: 570 [2019-11-07 04:06:03,818 INFO L226 Difference]: Without dead ends: 549 [2019-11-07 04:06:03,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:03,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2019-11-07 04:06:03,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 536. [2019-11-07 04:06:03,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-11-07 04:06:03,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 648 transitions. [2019-11-07 04:06:03,849 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 648 transitions. Word has length 45 [2019-11-07 04:06:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:03,849 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 648 transitions. [2019-11-07 04:06:03,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:06:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 648 transitions. [2019-11-07 04:06:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-07 04:06:03,851 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:03,851 INFO L410 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] [2019-11-07 04:06:03,851 INFO L410 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:03,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:03,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1857399340, now seen corresponding path program 1 times [2019-11-07 04:06:03,851 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:03,852 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401598387] [2019-11-07 04:06:03,852 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:03,968 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401598387] [2019-11-07 04:06:03,968 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:03,968 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:06:03,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553000021] [2019-11-07 04:06:03,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:06:03,969 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:03,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:06:03,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:03,969 INFO L87 Difference]: Start difference. First operand 536 states and 648 transitions. Second operand 9 states. [2019-11-07 04:06:05,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:05,233 INFO L93 Difference]: Finished difference Result 624 states and 744 transitions. [2019-11-07 04:06:05,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-07 04:06:05,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2019-11-07 04:06:05,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:05,237 INFO L225 Difference]: With dead ends: 624 [2019-11-07 04:06:05,237 INFO L226 Difference]: Without dead ends: 564 [2019-11-07 04:06:05,237 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2019-11-07 04:06:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-11-07 04:06:05,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 501. [2019-11-07 04:06:05,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-11-07 04:06:05,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 602 transitions. [2019-11-07 04:06:05,268 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 602 transitions. Word has length 45 [2019-11-07 04:06:05,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:05,268 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 602 transitions. [2019-11-07 04:06:05,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:06:05,268 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 602 transitions. [2019-11-07 04:06:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-07 04:06:05,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:05,270 INFO L410 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] [2019-11-07 04:06:05,270 INFO L410 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:05,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:05,270 INFO L82 PathProgramCache]: Analyzing trace with hash 305885669, now seen corresponding path program 1 times [2019-11-07 04:06:05,270 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:05,270 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507018409] [2019-11-07 04:06:05,271 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:05,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:05,310 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507018409] [2019-11-07 04:06:05,310 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:05,310 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 04:06:05,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049869718] [2019-11-07 04:06:05,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 04:06:05,311 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:05,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 04:06:05,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:05,311 INFO L87 Difference]: Start difference. First operand 501 states and 602 transitions. Second operand 3 states. [2019-11-07 04:06:05,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:05,392 INFO L93 Difference]: Finished difference Result 587 states and 707 transitions. [2019-11-07 04:06:05,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 04:06:05,392 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-11-07 04:06:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:05,395 INFO L225 Difference]: With dead ends: 587 [2019-11-07 04:06:05,396 INFO L226 Difference]: Without dead ends: 569 [2019-11-07 04:06:05,396 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 04:06:05,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-11-07 04:06:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 521. [2019-11-07 04:06:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-11-07 04:06:05,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 626 transitions. [2019-11-07 04:06:05,431 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 626 transitions. Word has length 45 [2019-11-07 04:06:05,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:05,431 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 626 transitions. [2019-11-07 04:06:05,431 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 04:06:05,431 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 626 transitions. [2019-11-07 04:06:05,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:06:05,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:05,433 INFO L410 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, 1] [2019-11-07 04:06:05,433 INFO L410 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:05,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:05,434 INFO L82 PathProgramCache]: Analyzing trace with hash 909821056, now seen corresponding path program 1 times [2019-11-07 04:06:05,434 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:05,434 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460281194] [2019-11-07 04:06:05,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:05,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:05,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:05,558 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460281194] [2019-11-07 04:06:05,558 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:05,559 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:05,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645267015] [2019-11-07 04:06:05,559 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:05,560 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:05,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:05,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:05,560 INFO L87 Difference]: Start difference. First operand 521 states and 626 transitions. Second operand 5 states. [2019-11-07 04:06:05,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:05,638 INFO L93 Difference]: Finished difference Result 699 states and 855 transitions. [2019-11-07 04:06:05,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:05,638 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-11-07 04:06:05,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:05,641 INFO L225 Difference]: With dead ends: 699 [2019-11-07 04:06:05,641 INFO L226 Difference]: Without dead ends: 489 [2019-11-07 04:06:05,642 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:05,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2019-11-07 04:06:05,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2019-11-07 04:06:05,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-11-07 04:06:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 579 transitions. [2019-11-07 04:06:05,688 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 579 transitions. Word has length 53 [2019-11-07 04:06:05,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:05,689 INFO L462 AbstractCegarLoop]: Abstraction has 489 states and 579 transitions. [2019-11-07 04:06:05,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 579 transitions. [2019-11-07 04:06:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:06:05,691 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:05,691 INFO L410 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] [2019-11-07 04:06:05,691 INFO L410 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:05,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1345400191, now seen corresponding path program 1 times [2019-11-07 04:06:05,692 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:05,692 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474417918] [2019-11-07 04:06:05,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:05,800 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474417918] [2019-11-07 04:06:05,800 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:05,800 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:06:05,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558810613] [2019-11-07 04:06:05,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:06:05,801 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:05,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:06:05,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:05,801 INFO L87 Difference]: Start difference. First operand 489 states and 579 transitions. Second operand 8 states. [2019-11-07 04:06:05,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:05,993 INFO L93 Difference]: Finished difference Result 505 states and 595 transitions. [2019-11-07 04:06:05,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:05,993 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2019-11-07 04:06:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:05,996 INFO L225 Difference]: With dead ends: 505 [2019-11-07 04:06:05,996 INFO L226 Difference]: Without dead ends: 501 [2019-11-07 04:06:05,997 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:05,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-11-07 04:06:06,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2019-11-07 04:06:06,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-11-07 04:06:06,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 587 transitions. [2019-11-07 04:06:06,033 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 587 transitions. Word has length 46 [2019-11-07 04:06:06,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:06,033 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 587 transitions. [2019-11-07 04:06:06,033 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:06:06,033 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 587 transitions. [2019-11-07 04:06:06,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-07 04:06:06,035 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:06,035 INFO L410 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] [2019-11-07 04:06:06,035 INFO L410 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:06,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:06,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1345123361, now seen corresponding path program 1 times [2019-11-07 04:06:06,036 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:06,036 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444543486] [2019-11-07 04:06:06,036 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:06,097 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444543486] [2019-11-07 04:06:06,097 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:06,097 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:06,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221778922] [2019-11-07 04:06:06,098 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:06,098 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:06,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:06,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:06,099 INFO L87 Difference]: Start difference. First operand 497 states and 587 transitions. Second operand 5 states. [2019-11-07 04:06:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:06,449 INFO L93 Difference]: Finished difference Result 512 states and 601 transitions. [2019-11-07 04:06:06,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:06,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-11-07 04:06:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:06,453 INFO L225 Difference]: With dead ends: 512 [2019-11-07 04:06:06,453 INFO L226 Difference]: Without dead ends: 494 [2019-11-07 04:06:06,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:06:06,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-11-07 04:06:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 487. [2019-11-07 04:06:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2019-11-07 04:06:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 575 transitions. [2019-11-07 04:06:06,482 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 575 transitions. Word has length 46 [2019-11-07 04:06:06,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:06,482 INFO L462 AbstractCegarLoop]: Abstraction has 487 states and 575 transitions. [2019-11-07 04:06:06,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 575 transitions. [2019-11-07 04:06:06,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 04:06:06,484 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:06,484 INFO L410 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] [2019-11-07 04:06:06,484 INFO L410 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:06,484 INFO L82 PathProgramCache]: Analyzing trace with hash -903148805, now seen corresponding path program 1 times [2019-11-07 04:06:06,484 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:06,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626347058] [2019-11-07 04:06:06,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:06,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:06,568 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626347058] [2019-11-07 04:06:06,568 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:06,568 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:06:06,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961480474] [2019-11-07 04:06:06,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:06:06,569 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:06,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:06:06,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:06,569 INFO L87 Difference]: Start difference. First operand 487 states and 575 transitions. Second operand 8 states. [2019-11-07 04:06:06,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:06,630 INFO L93 Difference]: Finished difference Result 500 states and 587 transitions. [2019-11-07 04:06:06,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:06,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2019-11-07 04:06:06,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:06,632 INFO L225 Difference]: With dead ends: 500 [2019-11-07 04:06:06,633 INFO L226 Difference]: Without dead ends: 476 [2019-11-07 04:06:06,633 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:06,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-11-07 04:06:06,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2019-11-07 04:06:06,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-11-07 04:06:06,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 562 transitions. [2019-11-07 04:06:06,662 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 562 transitions. Word has length 47 [2019-11-07 04:06:06,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:06,662 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 562 transitions. [2019-11-07 04:06:06,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:06:06,662 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 562 transitions. [2019-11-07 04:06:06,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-11-07 04:06:06,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:06,664 INFO L410 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] [2019-11-07 04:06:06,664 INFO L410 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:06,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:06,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1100389975, now seen corresponding path program 1 times [2019-11-07 04:06:06,664 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:06,664 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077286303] [2019-11-07 04:06:06,665 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:06,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:06,723 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077286303] [2019-11-07 04:06:06,723 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:06,723 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:06:06,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310475314] [2019-11-07 04:06:06,724 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:06:06,724 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:06,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:06:06,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:06:06,724 INFO L87 Difference]: Start difference. First operand 476 states and 562 transitions. Second operand 6 states. [2019-11-07 04:06:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:06,796 INFO L93 Difference]: Finished difference Result 505 states and 595 transitions. [2019-11-07 04:06:06,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:06:06,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-11-07 04:06:06,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:06,801 INFO L225 Difference]: With dead ends: 505 [2019-11-07 04:06:06,801 INFO L226 Difference]: Without dead ends: 478 [2019-11-07 04:06:06,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:06,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-11-07 04:06:06,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-11-07 04:06:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-11-07 04:06:06,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 564 transitions. [2019-11-07 04:06:06,849 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 564 transitions. Word has length 47 [2019-11-07 04:06:06,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:06,849 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 564 transitions. [2019-11-07 04:06:06,849 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:06:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 564 transitions. [2019-11-07 04:06:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-11-07 04:06:06,852 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:06,853 INFO L410 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, 1, 1, 1, 1, 1] [2019-11-07 04:06:06,853 INFO L410 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:06,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:06,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1633456135, now seen corresponding path program 1 times [2019-11-07 04:06:06,853 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:06,854 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730817640] [2019-11-07 04:06:06,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:06,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:06,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:06,931 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730817640] [2019-11-07 04:06:06,933 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:06,933 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:06,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765250361] [2019-11-07 04:06:06,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:06,934 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:06,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:06,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:06,935 INFO L87 Difference]: Start difference. First operand 478 states and 564 transitions. Second operand 5 states. [2019-11-07 04:06:07,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:07,420 INFO L93 Difference]: Finished difference Result 656 states and 787 transitions. [2019-11-07 04:06:07,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:07,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-11-07 04:06:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:07,424 INFO L225 Difference]: With dead ends: 656 [2019-11-07 04:06:07,424 INFO L226 Difference]: Without dead ends: 478 [2019-11-07 04:06:07,426 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-11-07 04:06:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-11-07 04:06:07,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-11-07 04:06:07,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 563 transitions. [2019-11-07 04:06:07,459 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 563 transitions. Word has length 57 [2019-11-07 04:06:07,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:07,459 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 563 transitions. [2019-11-07 04:06:07,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 563 transitions. [2019-11-07 04:06:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-11-07 04:06:07,461 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:07,461 INFO L410 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] [2019-11-07 04:06:07,461 INFO L410 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:07,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:07,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1328924742, now seen corresponding path program 1 times [2019-11-07 04:06:07,462 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:07,462 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460469276] [2019-11-07 04:06:07,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:07,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:07,571 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460469276] [2019-11-07 04:06:07,571 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:07,571 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:06:07,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342640762] [2019-11-07 04:06:07,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:06:07,571 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:07,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:06:07,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:07,573 INFO L87 Difference]: Start difference. First operand 478 states and 563 transitions. Second operand 8 states. [2019-11-07 04:06:07,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:07,727 INFO L93 Difference]: Finished difference Result 492 states and 576 transitions. [2019-11-07 04:06:07,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:07,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-11-07 04:06:07,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:07,731 INFO L225 Difference]: With dead ends: 492 [2019-11-07 04:06:07,731 INFO L226 Difference]: Without dead ends: 474 [2019-11-07 04:06:07,732 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:07,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-11-07 04:06:07,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2019-11-07 04:06:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-11-07 04:06:07,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 557 transitions. [2019-11-07 04:06:07,762 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 557 transitions. Word has length 49 [2019-11-07 04:06:07,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:07,762 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 557 transitions. [2019-11-07 04:06:07,762 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:06:07,762 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 557 transitions. [2019-11-07 04:06:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-07 04:06:07,764 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:07,764 INFO L410 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, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:07,765 INFO L410 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:07,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1913204380, now seen corresponding path program 1 times [2019-11-07 04:06:07,765 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:07,767 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669207689] [2019-11-07 04:06:07,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:07,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:07,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:07,925 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669207689] [2019-11-07 04:06:07,925 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:07,926 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:06:07,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35917461] [2019-11-07 04:06:07,926 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:06:07,926 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:07,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:06:07,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:07,927 INFO L87 Difference]: Start difference. First operand 474 states and 557 transitions. Second operand 7 states. [2019-11-07 04:06:08,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:08,216 INFO L93 Difference]: Finished difference Result 493 states and 577 transitions. [2019-11-07 04:06:08,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:06:08,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-11-07 04:06:08,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:08,219 INFO L225 Difference]: With dead ends: 493 [2019-11-07 04:06:08,219 INFO L226 Difference]: Without dead ends: 490 [2019-11-07 04:06:08,221 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:08,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-11-07 04:06:08,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 474. [2019-11-07 04:06:08,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-11-07 04:06:08,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 557 transitions. [2019-11-07 04:06:08,268 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 557 transitions. Word has length 58 [2019-11-07 04:06:08,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:08,269 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 557 transitions. [2019-11-07 04:06:08,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:06:08,269 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 557 transitions. [2019-11-07 04:06:08,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:06:08,270 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:08,270 INFO L410 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] [2019-11-07 04:06:08,271 INFO L410 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:08,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:08,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1487745293, now seen corresponding path program 1 times [2019-11-07 04:06:08,271 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:08,271 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122150758] [2019-11-07 04:06:08,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:08,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:08,333 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122150758] [2019-11-07 04:06:08,333 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:08,333 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:06:08,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884045891] [2019-11-07 04:06:08,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:06:08,334 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:08,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:06:08,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:06:08,334 INFO L87 Difference]: Start difference. First operand 474 states and 557 transitions. Second operand 6 states. [2019-11-07 04:06:08,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:08,409 INFO L93 Difference]: Finished difference Result 503 states and 585 transitions. [2019-11-07 04:06:08,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:06:08,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-11-07 04:06:08,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:08,412 INFO L225 Difference]: With dead ends: 503 [2019-11-07 04:06:08,412 INFO L226 Difference]: Without dead ends: 481 [2019-11-07 04:06:08,413 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-11-07 04:06:08,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 469. [2019-11-07 04:06:08,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-11-07 04:06:08,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 551 transitions. [2019-11-07 04:06:08,455 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 551 transitions. Word has length 52 [2019-11-07 04:06:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:08,456 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 551 transitions. [2019-11-07 04:06:08,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:06:08,456 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 551 transitions. [2019-11-07 04:06:08,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:06:08,457 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:08,457 INFO L410 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, 1] [2019-11-07 04:06:08,458 INFO L410 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:08,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:08,458 INFO L82 PathProgramCache]: Analyzing trace with hash -457860153, now seen corresponding path program 1 times [2019-11-07 04:06:08,458 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:08,458 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753660417] [2019-11-07 04:06:08,458 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:08,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:08,513 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753660417] [2019-11-07 04:06:08,513 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:08,514 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:06:08,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189131510] [2019-11-07 04:06:08,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:06:08,514 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:08,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:06:08,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:06:08,515 INFO L87 Difference]: Start difference. First operand 469 states and 551 transitions. Second operand 6 states. [2019-11-07 04:06:08,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:08,574 INFO L93 Difference]: Finished difference Result 481 states and 563 transitions. [2019-11-07 04:06:08,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 04:06:08,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-11-07 04:06:08,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:08,577 INFO L225 Difference]: With dead ends: 481 [2019-11-07 04:06:08,578 INFO L226 Difference]: Without dead ends: 454 [2019-11-07 04:06:08,578 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:08,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-07 04:06:08,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 452. [2019-11-07 04:06:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-11-07 04:06:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 530 transitions. [2019-11-07 04:06:08,615 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 530 transitions. Word has length 53 [2019-11-07 04:06:08,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:08,615 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 530 transitions. [2019-11-07 04:06:08,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:06:08,615 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 530 transitions. [2019-11-07 04:06:08,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-11-07 04:06:08,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:08,619 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:08,619 INFO L410 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:08,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:08,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1231805186, now seen corresponding path program 1 times [2019-11-07 04:06:08,620 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:08,620 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797581342] [2019-11-07 04:06:08,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:08,730 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797581342] [2019-11-07 04:06:08,730 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:08,731 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:08,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222640687] [2019-11-07 04:06:08,731 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:08,731 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:08,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:08,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:08,732 INFO L87 Difference]: Start difference. First operand 452 states and 530 transitions. Second operand 5 states. [2019-11-07 04:06:09,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:09,128 INFO L93 Difference]: Finished difference Result 705 states and 841 transitions. [2019-11-07 04:06:09,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:06:09,128 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-11-07 04:06:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:09,137 INFO L225 Difference]: With dead ends: 705 [2019-11-07 04:06:09,137 INFO L226 Difference]: Without dead ends: 533 [2019-11-07 04:06:09,138 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:09,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2019-11-07 04:06:09,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 502. [2019-11-07 04:06:09,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2019-11-07 04:06:09,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 592 transitions. [2019-11-07 04:06:09,172 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 592 transitions. Word has length 60 [2019-11-07 04:06:09,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:09,173 INFO L462 AbstractCegarLoop]: Abstraction has 502 states and 592 transitions. [2019-11-07 04:06:09,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:09,173 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 592 transitions. [2019-11-07 04:06:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:06:09,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:09,176 INFO L410 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] [2019-11-07 04:06:09,176 INFO L410 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:09,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:09,176 INFO L82 PathProgramCache]: Analyzing trace with hash 838098221, now seen corresponding path program 1 times [2019-11-07 04:06:09,176 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:09,177 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050663451] [2019-11-07 04:06:09,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:09,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:09,295 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050663451] [2019-11-07 04:06:09,296 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:09,296 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:06:09,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633362743] [2019-11-07 04:06:09,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:06:09,297 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:09,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:06:09,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:09,298 INFO L87 Difference]: Start difference. First operand 502 states and 592 transitions. Second operand 9 states. [2019-11-07 04:06:09,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:09,565 INFO L93 Difference]: Finished difference Result 517 states and 606 transitions. [2019-11-07 04:06:09,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:06:09,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-11-07 04:06:09,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:09,569 INFO L225 Difference]: With dead ends: 517 [2019-11-07 04:06:09,569 INFO L226 Difference]: Without dead ends: 498 [2019-11-07 04:06:09,570 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:06:09,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-11-07 04:06:09,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2019-11-07 04:06:09,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-11-07 04:06:09,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 586 transitions. [2019-11-07 04:06:09,608 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 586 transitions. Word has length 52 [2019-11-07 04:06:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:09,608 INFO L462 AbstractCegarLoop]: Abstraction has 498 states and 586 transitions. [2019-11-07 04:06:09,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:06:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 586 transitions. [2019-11-07 04:06:09,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-11-07 04:06:09,610 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:09,610 INFO L410 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] [2019-11-07 04:06:09,610 INFO L410 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:09,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:09,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1594848538, now seen corresponding path program 1 times [2019-11-07 04:06:09,611 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:09,611 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235272233] [2019-11-07 04:06:09,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:09,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:09,734 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235272233] [2019-11-07 04:06:09,734 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:09,734 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:06:09,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391581481] [2019-11-07 04:06:09,735 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:06:09,735 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:09,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:06:09,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:09,737 INFO L87 Difference]: Start difference. First operand 498 states and 586 transitions. Second operand 9 states. [2019-11-07 04:06:09,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:09,961 INFO L93 Difference]: Finished difference Result 513 states and 600 transitions. [2019-11-07 04:06:09,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:06:09,961 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-11-07 04:06:09,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:09,964 INFO L225 Difference]: With dead ends: 513 [2019-11-07 04:06:09,964 INFO L226 Difference]: Without dead ends: 494 [2019-11-07 04:06:09,965 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:06:09,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-11-07 04:06:09,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2019-11-07 04:06:09,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-11-07 04:06:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 580 transitions. [2019-11-07 04:06:10,000 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 580 transitions. Word has length 52 [2019-11-07 04:06:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:10,000 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 580 transitions. [2019-11-07 04:06:10,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:06:10,001 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 580 transitions. [2019-11-07 04:06:10,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-11-07 04:06:10,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:10,002 INFO L410 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, 1] [2019-11-07 04:06:10,003 INFO L410 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:10,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:10,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1542682953, now seen corresponding path program 1 times [2019-11-07 04:06:10,003 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:10,003 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748125385] [2019-11-07 04:06:10,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:10,152 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748125385] [2019-11-07 04:06:10,153 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:10,153 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:06:10,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286814175] [2019-11-07 04:06:10,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:06:10,154 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:10,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:06:10,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:10,155 INFO L87 Difference]: Start difference. First operand 494 states and 580 transitions. Second operand 9 states. [2019-11-07 04:06:10,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:10,444 INFO L93 Difference]: Finished difference Result 509 states and 594 transitions. [2019-11-07 04:06:10,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:06:10,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-11-07 04:06:10,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:10,448 INFO L225 Difference]: With dead ends: 509 [2019-11-07 04:06:10,448 INFO L226 Difference]: Without dead ends: 490 [2019-11-07 04:06:10,449 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:06:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-11-07 04:06:10,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2019-11-07 04:06:10,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2019-11-07 04:06:10,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 574 transitions. [2019-11-07 04:06:10,492 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 574 transitions. Word has length 53 [2019-11-07 04:06:10,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:10,492 INFO L462 AbstractCegarLoop]: Abstraction has 490 states and 574 transitions. [2019-11-07 04:06:10,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:06:10,492 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 574 transitions. [2019-11-07 04:06:10,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 04:06:10,494 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:10,494 INFO L410 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, 1, 1, 1, 1] [2019-11-07 04:06:10,494 INFO L410 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1273072073, now seen corresponding path program 1 times [2019-11-07 04:06:10,495 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:10,495 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668742328] [2019-11-07 04:06:10,495 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:10,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:10,560 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668742328] [2019-11-07 04:06:10,561 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:10,561 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:10,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120474749] [2019-11-07 04:06:10,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:10,562 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:10,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:10,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:10,562 INFO L87 Difference]: Start difference. First operand 490 states and 574 transitions. Second operand 5 states. [2019-11-07 04:06:10,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:10,635 INFO L93 Difference]: Finished difference Result 511 states and 593 transitions. [2019-11-07 04:06:10,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:10,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-11-07 04:06:10,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:10,638 INFO L225 Difference]: With dead ends: 511 [2019-11-07 04:06:10,639 INFO L226 Difference]: Without dead ends: 488 [2019-11-07 04:06:10,639 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-11-07 04:06:10,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 485. [2019-11-07 04:06:10,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-11-07 04:06:10,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 567 transitions. [2019-11-07 04:06:10,674 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 567 transitions. Word has length 56 [2019-11-07 04:06:10,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:10,675 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 567 transitions. [2019-11-07 04:06:10,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:10,675 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 567 transitions. [2019-11-07 04:06:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 04:06:10,677 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:10,677 INFO L410 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, 1, 1, 1, 1] [2019-11-07 04:06:10,677 INFO L410 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:10,678 INFO L82 PathProgramCache]: Analyzing trace with hash 63394735, now seen corresponding path program 1 times [2019-11-07 04:06:10,678 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:10,678 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500019609] [2019-11-07 04:06:10,678 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:10,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:10,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:10,799 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500019609] [2019-11-07 04:06:10,800 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:10,800 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-07 04:06:10,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796684909] [2019-11-07 04:06:10,802 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-07 04:06:10,802 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:10,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-07 04:06:10,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:10,802 INFO L87 Difference]: Start difference. First operand 485 states and 567 transitions. Second operand 9 states. [2019-11-07 04:06:11,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:11,070 INFO L93 Difference]: Finished difference Result 500 states and 581 transitions. [2019-11-07 04:06:11,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:06:11,070 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-11-07 04:06:11,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:11,073 INFO L225 Difference]: With dead ends: 500 [2019-11-07 04:06:11,073 INFO L226 Difference]: Without dead ends: 468 [2019-11-07 04:06:11,074 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-11-07 04:06:11,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-11-07 04:06:11,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2019-11-07 04:06:11,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-11-07 04:06:11,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 546 transitions. [2019-11-07 04:06:11,104 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 546 transitions. Word has length 56 [2019-11-07 04:06:11,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:11,105 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 546 transitions. [2019-11-07 04:06:11,105 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-07 04:06:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 546 transitions. [2019-11-07 04:06:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 04:06:11,107 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:11,107 INFO L410 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, 1, 1, 1, 1] [2019-11-07 04:06:11,107 INFO L410 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:11,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1940722786, now seen corresponding path program 1 times [2019-11-07 04:06:11,108 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:11,108 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950273880] [2019-11-07 04:06:11,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:11,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950273880] [2019-11-07 04:06:11,246 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:11,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:06:11,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792460270] [2019-11-07 04:06:11,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:06:11,248 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:11,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:06:11,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:11,249 INFO L87 Difference]: Start difference. First operand 468 states and 546 transitions. Second operand 8 states. [2019-11-07 04:06:11,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:11,453 INFO L93 Difference]: Finished difference Result 479 states and 556 transitions. [2019-11-07 04:06:11,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:11,454 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-07 04:06:11,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:11,457 INFO L225 Difference]: With dead ends: 479 [2019-11-07 04:06:11,457 INFO L226 Difference]: Without dead ends: 459 [2019-11-07 04:06:11,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-07 04:06:11,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-11-07 04:06:11,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2019-11-07 04:06:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-11-07 04:06:11,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 535 transitions. [2019-11-07 04:06:11,505 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 535 transitions. Word has length 56 [2019-11-07 04:06:11,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:11,506 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 535 transitions. [2019-11-07 04:06:11,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:06:11,506 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 535 transitions. [2019-11-07 04:06:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-11-07 04:06:11,508 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:11,508 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:11,509 INFO L410 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:11,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:11,509 INFO L82 PathProgramCache]: Analyzing trace with hash -259612304, now seen corresponding path program 1 times [2019-11-07 04:06:11,510 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:11,512 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237846559] [2019-11-07 04:06:11,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:11,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:11,690 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237846559] [2019-11-07 04:06:11,690 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:11,690 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:06:11,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950623855] [2019-11-07 04:06:11,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:06:11,692 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:11,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:06:11,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:11,693 INFO L87 Difference]: Start difference. First operand 459 states and 535 transitions. Second operand 10 states. [2019-11-07 04:06:12,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:12,417 INFO L93 Difference]: Finished difference Result 493 states and 569 transitions. [2019-11-07 04:06:12,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 04:06:12,417 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-11-07 04:06:12,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:12,419 INFO L225 Difference]: With dead ends: 493 [2019-11-07 04:06:12,420 INFO L226 Difference]: Without dead ends: 457 [2019-11-07 04:06:12,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:06:12,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-11-07 04:06:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2019-11-07 04:06:12,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-11-07 04:06:12,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 530 transitions. [2019-11-07 04:06:12,456 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 530 transitions. Word has length 66 [2019-11-07 04:06:12,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:12,457 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 530 transitions. [2019-11-07 04:06:12,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:06:12,457 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 530 transitions. [2019-11-07 04:06:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-07 04:06:12,459 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:12,460 INFO L410 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:12,460 INFO L410 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:12,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:12,460 INFO L82 PathProgramCache]: Analyzing trace with hash 157821587, now seen corresponding path program 1 times [2019-11-07 04:06:12,461 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:12,461 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433621021] [2019-11-07 04:06:12,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:12,536 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433621021] [2019-11-07 04:06:12,536 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:12,536 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 04:06:12,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077723466] [2019-11-07 04:06:12,537 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 04:06:12,537 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:12,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 04:06:12,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 04:06:12,538 INFO L87 Difference]: Start difference. First operand 457 states and 530 transitions. Second operand 6 states. [2019-11-07 04:06:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:12,590 INFO L93 Difference]: Finished difference Result 462 states and 534 transitions. [2019-11-07 04:06:12,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:06:12,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-11-07 04:06:12,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:12,592 INFO L225 Difference]: With dead ends: 462 [2019-11-07 04:06:12,593 INFO L226 Difference]: Without dead ends: 410 [2019-11-07 04:06:12,594 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-11-07 04:06:12,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2019-11-07 04:06:12,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-11-07 04:06:12,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 474 transitions. [2019-11-07 04:06:12,625 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 474 transitions. Word has length 59 [2019-11-07 04:06:12,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:12,627 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 474 transitions. [2019-11-07 04:06:12,627 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 04:06:12,627 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 474 transitions. [2019-11-07 04:06:12,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-11-07 04:06:12,628 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:12,629 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:12,629 INFO L410 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:12,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:12,629 INFO L82 PathProgramCache]: Analyzing trace with hash -237484545, now seen corresponding path program 1 times [2019-11-07 04:06:12,629 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:12,629 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213046984] [2019-11-07 04:06:12,630 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:12,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:12,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:12,788 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213046984] [2019-11-07 04:06:12,788 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:12,788 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 04:06:12,788 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136906036] [2019-11-07 04:06:12,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 04:06:12,791 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:12,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 04:06:12,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-07 04:06:12,792 INFO L87 Difference]: Start difference. First operand 410 states and 474 transitions. Second operand 8 states. [2019-11-07 04:06:13,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:13,387 INFO L93 Difference]: Finished difference Result 492 states and 583 transitions. [2019-11-07 04:06:13,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-07 04:06:13,388 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2019-11-07 04:06:13,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:13,390 INFO L225 Difference]: With dead ends: 492 [2019-11-07 04:06:13,390 INFO L226 Difference]: Without dead ends: 488 [2019-11-07 04:06:13,391 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-11-07 04:06:13,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 410. [2019-11-07 04:06:13,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-11-07 04:06:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 474 transitions. [2019-11-07 04:06:13,422 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 474 transitions. Word has length 67 [2019-11-07 04:06:13,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:13,423 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 474 transitions. [2019-11-07 04:06:13,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 04:06:13,423 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 474 transitions. [2019-11-07 04:06:13,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-11-07 04:06:13,424 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:13,424 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:13,424 INFO L410 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:13,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:13,425 INFO L82 PathProgramCache]: Analyzing trace with hash 597157261, now seen corresponding path program 1 times [2019-11-07 04:06:13,425 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:13,425 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220594258] [2019-11-07 04:06:13,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:13,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:13,473 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220594258] [2019-11-07 04:06:13,473 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:13,473 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:13,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149715269] [2019-11-07 04:06:13,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:13,474 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:13,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:13,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:13,474 INFO L87 Difference]: Start difference. First operand 410 states and 474 transitions. Second operand 5 states. [2019-11-07 04:06:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:13,834 INFO L93 Difference]: Finished difference Result 708 states and 800 transitions. [2019-11-07 04:06:13,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 04:06:13,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-11-07 04:06:13,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:13,836 INFO L225 Difference]: With dead ends: 708 [2019-11-07 04:06:13,837 INFO L226 Difference]: Without dead ends: 445 [2019-11-07 04:06:13,838 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-11-07 04:06:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 425. [2019-11-07 04:06:13,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-11-07 04:06:13,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 483 transitions. [2019-11-07 04:06:13,874 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 483 transitions. Word has length 62 [2019-11-07 04:06:13,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:13,875 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 483 transitions. [2019-11-07 04:06:13,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:13,875 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 483 transitions. [2019-11-07 04:06:13,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-07 04:06:13,876 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:13,876 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:13,876 INFO L410 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:13,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:13,877 INFO L82 PathProgramCache]: Analyzing trace with hash 509313900, now seen corresponding path program 1 times [2019-11-07 04:06:13,877 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:13,877 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720762180] [2019-11-07 04:06:13,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:13,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:13,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:13,934 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720762180] [2019-11-07 04:06:13,934 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:13,934 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 04:06:13,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763606355] [2019-11-07 04:06:13,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 04:06:13,935 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:13,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 04:06:13,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:13,935 INFO L87 Difference]: Start difference. First operand 425 states and 483 transitions. Second operand 5 states. [2019-11-07 04:06:13,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:13,980 INFO L93 Difference]: Finished difference Result 464 states and 521 transitions. [2019-11-07 04:06:13,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 04:06:13,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-11-07 04:06:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:13,983 INFO L225 Difference]: With dead ends: 464 [2019-11-07 04:06:13,983 INFO L226 Difference]: Without dead ends: 425 [2019-11-07 04:06:13,983 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 04:06:13,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2019-11-07 04:06:14,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2019-11-07 04:06:14,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-11-07 04:06:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 482 transitions. [2019-11-07 04:06:14,018 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 482 transitions. Word has length 65 [2019-11-07 04:06:14,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:14,019 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 482 transitions. [2019-11-07 04:06:14,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 04:06:14,019 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 482 transitions. [2019-11-07 04:06:14,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-11-07 04:06:14,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:14,020 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:14,020 INFO L410 AbstractCegarLoop]: === Iteration 47 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:14,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:14,021 INFO L82 PathProgramCache]: Analyzing trace with hash 829236696, now seen corresponding path program 1 times [2019-11-07 04:06:14,021 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:14,021 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893234548] [2019-11-07 04:06:14,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:14,120 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893234548] [2019-11-07 04:06:14,120 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:14,120 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 04:06:14,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501763971] [2019-11-07 04:06:14,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 04:06:14,121 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:14,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 04:06:14,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 04:06:14,123 INFO L87 Difference]: Start difference. First operand 425 states and 482 transitions. Second operand 7 states. [2019-11-07 04:06:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:14,284 INFO L93 Difference]: Finished difference Result 442 states and 498 transitions. [2019-11-07 04:06:14,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 04:06:14,284 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-11-07 04:06:14,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:14,287 INFO L225 Difference]: With dead ends: 442 [2019-11-07 04:06:14,287 INFO L226 Difference]: Without dead ends: 423 [2019-11-07 04:06:14,287 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:14,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-11-07 04:06:14,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 384. [2019-11-07 04:06:14,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-11-07 04:06:14,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 430 transitions. [2019-11-07 04:06:14,323 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 430 transitions. Word has length 74 [2019-11-07 04:06:14,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:14,323 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 430 transitions. [2019-11-07 04:06:14,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 04:06:14,323 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 430 transitions. [2019-11-07 04:06:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-07 04:06:14,326 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:14,326 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:14,326 INFO L410 AbstractCegarLoop]: === Iteration 48 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:14,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:14,326 INFO L82 PathProgramCache]: Analyzing trace with hash -438459579, now seen corresponding path program 1 times [2019-11-07 04:06:14,327 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:14,327 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326424974] [2019-11-07 04:06:14,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:06:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:06:14,467 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326424974] [2019-11-07 04:06:14,467 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:06:14,467 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 04:06:14,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527630860] [2019-11-07 04:06:14,468 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 04:06:14,469 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:06:14,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 04:06:14,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-07 04:06:14,469 INFO L87 Difference]: Start difference. First operand 384 states and 430 transitions. Second operand 10 states. [2019-11-07 04:06:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:06:15,086 INFO L93 Difference]: Finished difference Result 500 states and 559 transitions. [2019-11-07 04:06:15,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 04:06:15,087 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2019-11-07 04:06:15,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:06:15,089 INFO L225 Difference]: With dead ends: 500 [2019-11-07 04:06:15,090 INFO L226 Difference]: Without dead ends: 356 [2019-11-07 04:06:15,090 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-11-07 04:06:15,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-11-07 04:06:15,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2019-11-07 04:06:15,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-11-07 04:06:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 391 transitions. [2019-11-07 04:06:15,122 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 391 transitions. Word has length 75 [2019-11-07 04:06:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:06:15,122 INFO L462 AbstractCegarLoop]: Abstraction has 352 states and 391 transitions. [2019-11-07 04:06:15,122 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 04:06:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 391 transitions. [2019-11-07 04:06:15,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-07 04:06:15,124 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:06:15,124 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:06:15,124 INFO L410 AbstractCegarLoop]: === Iteration 49 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:06:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:06:15,125 INFO L82 PathProgramCache]: Analyzing trace with hash 920929394, now seen corresponding path program 1 times [2019-11-07 04:06:15,125 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:06:15,125 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491604633] [2019-11-07 04:06:15,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:06:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 04:06:15,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 04:06:15,242 INFO L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-07 04:06:15,242 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-07 04:06:15,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:06:15 BoogieIcfgContainer [2019-11-07 04:06:15,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:06:15,376 INFO L168 Benchmark]: Toolchain (without parser) took 23858.43 ms. Allocated memory was 138.4 MB in the beginning and 640.2 MB in the end (delta: 501.7 MB). Free memory was 100.7 MB in the beginning and 501.1 MB in the end (delta: -400.3 MB). Peak memory consumption was 101.4 MB. Max. memory is 7.1 GB. [2019-11-07 04:06:15,377 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 138.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-07 04:06:15,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 863.04 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 100.7 MB in the beginning and 171.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. [2019-11-07 04:06:15,378 INFO L168 Benchmark]: Boogie Preprocessor took 103.73 ms. Allocated memory is still 204.5 MB. Free memory was 170.4 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:06:15,378 INFO L168 Benchmark]: RCFGBuilder took 1979.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 109.0 MB in the end (delta: 57.2 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. [2019-11-07 04:06:15,383 INFO L168 Benchmark]: TraceAbstraction took 20893.57 ms. Allocated memory was 237.5 MB in the beginning and 640.2 MB in the end (delta: 402.7 MB). Free memory was 107.3 MB in the beginning and 501.1 MB in the end (delta: -393.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-11-07 04:06:15,386 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 138.4 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 863.04 ms. Allocated memory was 138.4 MB in the beginning and 204.5 MB in the end (delta: 66.1 MB). Free memory was 100.7 MB in the beginning and 171.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.73 ms. Allocated memory is still 204.5 MB. Free memory was 170.4 MB in the beginning and 166.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1979.91 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 109.0 MB in the end (delta: 57.2 MB). Peak memory consumption was 90.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20893.57 ms. Allocated memory was 237.5 MB in the beginning and 640.2 MB in the end (delta: 402.7 MB). Free memory was 107.3 MB in the beginning and 501.1 MB in the end (delta: -393.8 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1626]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L41] int FloppyThread ; [L42] int KernelMode ; [L43] int Suspended ; [L44] int Executive ; [L45] int DiskController ; [L46] int FloppyDiskPeripheral ; [L47] int FlConfigCallBack ; [L48] int MaximumInterfaceType ; [L49] int MOUNTDEV_MOUNTED_DEVICE_GUID ; [L50] int myStatus ; [L51] int s ; [L52] int UNLOADED ; [L53] int NP ; [L54] int DC ; [L55] int SKIP1 ; [L56] int SKIP2 ; [L57] int MPR1 ; [L58] int MPR3 ; [L59] int IPC ; [L60] int pended ; [L61] int compRegistered ; [L62] int lowerDriverReturn ; [L63] int setEventCalled ; [L64] int customIrp ; [L87] int PagingReferenceCount = 0; [L88] int PagingMutex = 0; [L667] int status ; [L668] int irp = __VERIFIER_nondet_int() ; [L669] int pirp ; [L670] int pirp__IoStatus__Status ; [L671] int irp_choice = __VERIFIER_nondet_int() ; [L672] int devobj = __VERIFIER_nondet_int() ; [L673] int __cil_tmp8 ; [L675] FloppyThread = 0 [L676] KernelMode = 0 [L677] Suspended = 0 [L678] Executive = 0 [L679] DiskController = 0 [L680] FloppyDiskPeripheral = 0 [L681] FlConfigCallBack = 0 [L682] MaximumInterfaceType = 0 [L683] MOUNTDEV_MOUNTED_DEVICE_GUID = 0 [L684] myStatus = 0 [L685] s = 0 [L686] UNLOADED = 0 [L687] NP = 0 [L688] DC = 0 [L689] SKIP1 = 0 [L690] SKIP2 = 0 [L691] MPR1 = 0 [L692] MPR3 = 0 [L693] IPC = 0 [L694] pended = 0 [L695] compRegistered = 0 [L696] lowerDriverReturn = 0 [L697] setEventCalled = 0 [L698] customIrp = 0 [L702] status = 0 [L703] pirp = irp VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, status=0, Suspended=0, UNLOADED=0] [L704] CALL _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=0, MPR3=0, myStatus=0, NP=0, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=0, SKIP2=0, Suspended=0, UNLOADED=0] [L70] UNLOADED = 0 [L71] NP = 1 [L72] DC = 2 [L73] SKIP1 = 3 [L74] SKIP2 = 4 [L75] MPR1 = 5 [L76] MPR3 = 6 [L77] IPC = 7 [L78] s = UNLOADED [L79] pended = 0 [L80] compRegistered = 0 [L81] lowerDriverReturn = 0 [L82] setEventCalled = 0 [L83] customIrp = 0 [L704] RET _BLAST_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L706] COND TRUE status >= 0 [L707] s = NP [L708] customIrp = 0 [L709] setEventCalled = customIrp [L710] lowerDriverReturn = setEventCalled [L711] compRegistered = lowerDriverReturn [L712] pended = compRegistered [L713] pirp__IoStatus__Status = 0 [L714] myStatus = 0 [L715] COND TRUE irp_choice == 0 [L716] pirp__IoStatus__Status = -1073741637 [L717] myStatus = -1073741637 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L720] CALL stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L657] s = NP [L658] pended = 0 [L659] compRegistered = 0 [L660] lowerDriverReturn = 0 [L661] setEventCalled = 0 [L662] customIrp = 0 [L720] RET stub_driver_init() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=0] [L723] COND FALSE !(status < 0) [L727] int tmp_ndt_1; [L728] tmp_ndt_1 = __VERIFIER_nondet_int() [L729] COND FALSE !(tmp_ndt_1 == 0) [L732] int tmp_ndt_2; [L733] tmp_ndt_2 = __VERIFIER_nondet_int() [L734] COND FALSE !(tmp_ndt_2 == 1) [L737] int tmp_ndt_3; [L738] tmp_ndt_3 = __VERIFIER_nondet_int() [L739] COND FALSE !(tmp_ndt_3 == 2) [L742] int tmp_ndt_4; [L743] tmp_ndt_4 = __VERIFIER_nondet_int() [L744] COND TRUE tmp_ndt_4 == 3 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, pirp=0, pirp__IoStatus__Status=-1073741637, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L766] CALL, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L160] int DeviceObject__DeviceExtension = __VERIFIER_nondet_int() ; [L161] int Irp__Tail__Overlay__CurrentStackLocation = __VERIFIER_nondet_int() ; [L162] int Irp__IoStatus__Information ; [L163] int Irp__IoStatus__Status ; [L164] int Irp__CurrentLocation = __VERIFIER_nondet_int() ; [L165] int disketteExtension__IsRemoved = __VERIFIER_nondet_int() ; [L166] int disketteExtension__IsStarted = __VERIFIER_nondet_int() ; [L167] int disketteExtension__TargetObject = __VERIFIER_nondet_int() ; [L168] int disketteExtension__HoldNewRequests ; [L169] int disketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L170] int disketteExtension__InterfaceString__Buffer = __VERIFIER_nondet_int() ; [L171] int disketteExtension__InterfaceString = __VERIFIER_nondet_int() ; [L172] int disketteExtension__ArcName__Length = __VERIFIER_nondet_int() ; [L173] int disketteExtension__ArcName = __VERIFIER_nondet_int() ; [L174] int irpSp__MinorFunction = __VERIFIER_nondet_int() ; [L175] int IoGetConfigurationInformation__FloppyCount = __VERIFIER_nondet_int() ; [L176] int irpSp ; [L177] int disketteExtension ; [L178] int ntStatus ; [L179] int doneEvent = __VERIFIER_nondet_int() ; [L180] int irpSp___0 ; [L181] int nextIrpSp ; [L182] int nextIrpSp__Control ; [L183] int irpSp___1 ; [L184] int irpSp__Context ; [L185] int irpSp__Control ; [L186] long __cil_tmp29 ; [L187] long __cil_tmp30 ; [L190] ntStatus = 0 [L191] PagingReferenceCount ++ [L192] COND TRUE PagingReferenceCount == 1 [L195] disketteExtension = DeviceObject__DeviceExtension [L196] irpSp = Irp__Tail__Overlay__CurrentStackLocation VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L197] COND FALSE !(\read(disketteExtension__IsRemoved)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L206] COND FALSE !(irpSp__MinorFunction == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L209] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L235] COND TRUE irpSp__MinorFunction == 5 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L238] COND FALSE !(! disketteExtension__IsStarted) [L254] disketteExtension__HoldNewRequests = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L255] CALL, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L97] int status ; [L98] int threadHandle = __VERIFIER_nondet_int() ; [L99] int DisketteExtension__PoweringDown = __VERIFIER_nondet_int() ; [L100] int DisketteExtension__ThreadReferenceCount = __VERIFIER_nondet_int() ; [L101] int DisketteExtension__FloppyThread = __VERIFIER_nondet_int() ; [L102] int Irp__IoStatus__Status ; [L103] int Irp__IoStatus__Information ; [L104] int Irp__Tail__Overlay__CurrentStackLocation__Control ; [L105] int ObjAttributes = __VERIFIER_nondet_int() ; [L106] int __cil_tmp12 ; [L107] int __cil_tmp13 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=-2, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L110] COND FALSE !(DisketteExtension__PoweringDown == 1) [L116] DisketteExtension__ThreadReferenceCount ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=-1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L117] COND FALSE !(DisketteExtension__ThreadReferenceCount == 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=-1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L149] COND TRUE pended == 0 [L150] pended = 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=-1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L156] return (259); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(DisketteExtension)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=1, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=259, compRegistered=0, customIrp=0, DC=2, DiskController=0, DisketteExtension=0, DisketteExtension__FloppyThread=0, DisketteExtension__PoweringDown=0, DisketteExtension__ThreadReferenceCount=-1, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ObjAttributes=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, threadHandle=0, UNLOADED=0] [L255] RET, EXPR FlQueueIrpToThread(Irp, disketteExtension) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L255] ntStatus = FlQueueIrpToThread(Irp, disketteExtension) [L258] __cil_tmp29 = (long )ntStatus VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L259] COND TRUE __cil_tmp29 == 259L VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L261-L262] CALL KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1065] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1074] COND FALSE !(customIrp == 1) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1078] COND FALSE !(s == MPR3) VAL [\old(Alertable)=0, \old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(Object)=1, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(Timeout)=0, \old(UNLOADED)=0, \old(WaitMode)=0, \old(WaitReason)=0, Alertable=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, Object=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, UNLOADED=0, WaitMode=0, WaitReason=0] [L1085] int tmp_ndt_12; [L1086] tmp_ndt_12 = __VERIFIER_nondet_int() [L1087] COND FALSE !(tmp_ndt_12 == 0) [L1095] return (-1073741823); [L261-L262] RET KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=1, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, KeWaitForSingleObject(disketteExtension__FloppyThread, Executive, KernelMode, 0, 0)=-1073741823, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=-1073741637, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L264] COND TRUE disketteExtension__FloppyThread != 0 [L267] disketteExtension__FloppyThread = 0 [L268] Irp__IoStatus__Status = 0 [L269] myStatus = 0 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L270] COND TRUE s == NP [L271] s = SKIP1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=-3, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L278] Irp__CurrentLocation ++ [L279] Irp__Tail__Overlay__CurrentStackLocation ++ VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=-2, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L280] CALL, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L967] int returnVal2 ; [L968] int compRetStatus1 ; [L969] int lcontext = __VERIFIER_nondet_int() ; [L970] unsigned long __cil_tmp7 ; VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L973] COND FALSE !(\read(compRegistered)) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L986] int tmp_ndt_10; [L987] tmp_ndt_10 = __VERIFIER_nondet_int() [L988] COND FALSE !(tmp_ndt_10 == 0) [L991] int tmp_ndt_11; [L992] tmp_ndt_11 = __VERIFIER_nondet_int() [L993] COND TRUE tmp_ndt_11 == 1 [L1002] returnVal2 = -1073741823 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __VERIFIER_nondet_int()=1, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=1, tmp_ndt_11=1, UNLOADED=0] [L1012] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __VERIFIER_nondet_int()=1, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=1, tmp_ndt_11=1, UNLOADED=0] [L1016] COND FALSE !(s == MPR1) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __VERIFIER_nondet_int()=1, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=-1073741823, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=1, tmp_ndt_11=1, UNLOADED=0] [L1025] COND TRUE s == SKIP1 [L1026] s = SKIP2 [L1027] lowerDriverReturn = returnVal2 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=3, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __VERIFIER_nondet_int()=1, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, Irp=0, KernelMode=0, lcontext=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=1, pended=1, returnVal2=-1073741823, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=1, tmp_ndt_11=1, UNLOADED=0] [L1035] return (returnVal2); [L280] RET, EXPR IofCallDriver(disketteExtension__TargetObject, Irp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IofCallDriver(disketteExtension__TargetObject, Irp)=-1073741823, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=-2, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=259, PagingMutex=0, PagingReferenceCount=1, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L280] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L426] PagingReferenceCount -- [L427] COND TRUE PagingReferenceCount == 0 [L430] return (ntStatus); VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DeviceObject)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(Irp)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=-1073741637, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=1, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, \result=-1073741823, __cil_tmp29=259, compRegistered=0, customIrp=0, DC=2, DeviceObject=0, DeviceObject__DeviceExtension=0, DiskController=0, disketteExtension=0, disketteExtension__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, disketteExtension__HoldNewRequests=1, disketteExtension__InterfaceString=0, disketteExtension__InterfaceString__Buffer=0, disketteExtension__IsRemoved=0, disketteExtension__IsStarted=1, disketteExtension__TargetObject=0, doneEvent=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=-2, irpSp=-3, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=-1073741823, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L766] RET, EXPR FloppyPnp(devobj, pirp) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyPnp(devobj, pirp)=-1073741823, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L766] status = FloppyPnp(devobj, pirp) [L779] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L780] COND FALSE !(s == NP) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L787] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L788] COND FALSE !(s == MPR3) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L795] COND TRUE s != UNLOADED VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L796] COND TRUE status != -1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L797] COND FALSE !(s != SKIP2) VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L811] COND TRUE pended == 1 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L812] COND TRUE status != 259 VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, devobj=0, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, irp=0, irp_choice=0, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, pirp=0, pirp__IoStatus__Status=-1073741637, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, status=-1073741823, Suspended=0, tmp_ndt_1=1, tmp_ndt_2=0, tmp_ndt_3=0, tmp_ndt_4=3, UNLOADED=0] [L813] CALL errorFn() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L1626] __VERIFIER_error() VAL [\old(compRegistered)=0, \old(customIrp)=0, \old(DC)=0, \old(DiskController)=0, \old(Executive)=0, \old(FlConfigCallBack)=0, \old(FloppyDiskPeripheral)=0, \old(FloppyThread)=0, \old(IPC)=0, \old(KernelMode)=0, \old(lowerDriverReturn)=0, \old(MaximumInterfaceType)=0, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=0, \old(MPR1)=0, \old(MPR3)=0, \old(myStatus)=0, \old(NP)=0, \old(PagingReferenceCount)=0, \old(pended)=0, \old(s)=0, \old(setEventCalled)=0, \old(SKIP1)=0, \old(SKIP2)=0, \old(Suspended)=0, \old(UNLOADED)=0, compRegistered=0, customIrp=0, DC=2, DiskController=0, Executive=0, FlConfigCallBack=0, FloppyDiskPeripheral=0, FloppyThread=0, IPC=7, KernelMode=0, lowerDriverReturn=-1073741823, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 308 locations, 1 error locations. Result: UNSAFE, OverallTime: 20.7s, OverallIterations: 49, TraceHistogramMax: 1, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16474 SDtfs, 8525 SDslu, 44297 SDs, 0 SdLazy, 9917 SolverSat, 2175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=617occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 48 MinimizatonAttempts, 894 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2332 NumberOfCodeBlocks, 2332 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 2215 ConstructedInterpolants, 0 QuantifiedInterpolants, 239534 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 48 InterpolantComputations, 48 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...