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 0.1.24-36ac518-m [2019-10-07 13:49:42,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:49:42,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:49:42,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:49:42,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:49:42,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:49:42,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:49:42,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:49:42,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:49:42,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:49:42,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:49:42,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:49:42,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:49:42,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:49:42,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:49:42,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:49:42,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:49:42,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:49:42,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:49:42,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:49:42,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:49:42,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:49:42,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:49:42,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:49:42,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:49:42,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:49:42,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:49:42,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:49:42,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:49:42,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:49:42,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:49:42,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:49:42,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:49:42,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:49:42,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:49:42,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:49:42,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:49:42,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:49:42,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:49:42,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:49:42,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:49:42,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-07 13:49:42,180 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:49:42,181 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:49:42,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:49:42,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:49:42,183 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:49:42,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:49:42,183 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:49:42,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:49:42,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:49:42,184 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:49:42,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:49:42,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:49:42,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:49:42,186 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:49:42,186 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:49:42,186 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:49:42,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:49:42,187 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:49:42,187 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:49:42,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:49:42,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:49:42,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:49:42,188 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:49:42,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:49:42,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:49:42,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:49:42,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:49:42,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:49:42,189 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 [2019-10-07 13:49:42,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:49:42,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:49:42,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:49:42,517 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:49:42,517 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:49:42,518 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-10-07 13:49:42,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c563ef/e14bb3b117b6430fa7a3d80a5bfb4758/FLAG4df699328 [2019-10-07 13:49:43,138 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:49:43,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-10-07 13:49:43,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c563ef/e14bb3b117b6430fa7a3d80a5bfb4758/FLAG4df699328 [2019-10-07 13:49:43,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5c563ef/e14bb3b117b6430fa7a3d80a5bfb4758 [2019-10-07 13:49:43,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:49:43,446 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:49:43,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:49:43,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:49:43,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:49:43,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:49:43" (1/1) ... [2019-10-07 13:49:43,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e90e029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:43, skipping insertion in model container [2019-10-07 13:49:43,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:49:43" (1/1) ... [2019-10-07 13:49:43,463 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:49:43,544 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:49:44,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:49:44,063 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:49:44,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:49:44,229 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:49:44,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44 WrapperNode [2019-10-07 13:49:44,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:49:44,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:49:44,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:49:44,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:49:44,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... [2019-10-07 13:49:44,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:49:44,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:49:44,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:49:44,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:49:44,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:49:44,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:49:44,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:49:44,404 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2019-10-07 13:49:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2019-10-07 13:49:44,405 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2019-10-07 13:49:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2019-10-07 13:49:44,406 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2019-10-07 13:49:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2019-10-07 13:49:44,407 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2019-10-07 13:49:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2019-10-07 13:49:44,408 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2019-10-07 13:49:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:49:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2019-10-07 13:49:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2019-10-07 13:49:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2019-10-07 13:49:44,409 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2019-10-07 13:49:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2019-10-07 13:49:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2019-10-07 13:49:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2019-10-07 13:49:44,412 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2019-10-07 13:49:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2019-10-07 13:49:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2019-10-07 13:49:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2019-10-07 13:49:44,413 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2019-10-07 13:49:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2019-10-07 13:49:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2019-10-07 13:49:44,414 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2019-10-07 13:49:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2019-10-07 13:49:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2019-10-07 13:49:44,415 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2019-10-07 13:49:44,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-07 13:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-07 13:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-07 13:49:44,416 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2019-10-07 13:49:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2019-10-07 13:49:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2019-10-07 13:49:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2019-10-07 13:49:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2019-10-07 13:49:44,417 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2019-10-07 13:49:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2019-10-07 13:49:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2019-10-07 13:49:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2019-10-07 13:49:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2019-10-07 13:49:44,418 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2019-10-07 13:49:44,419 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2019-10-07 13:49:44,420 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2019-10-07 13:49:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2019-10-07 13:49:44,421 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2019-10-07 13:49:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2019-10-07 13:49:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:49:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2019-10-07 13:49:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:49:44,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:49:44,824 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:44,898 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:44,899 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:44,907 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:44,917 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:44,917 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:44,925 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,186 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-10-07 13:49:45,186 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2019-10-07 13:49:45,189 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,331 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2019-10-07 13:49:45,331 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2019-10-07 13:49:45,356 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,388 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-10-07 13:49:45,388 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-10-07 13:49:45,520 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,534 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,535 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:45,535 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,548 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,549 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:45,549 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,561 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,562 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:45,603 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,630 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2019-10-07 13:49:45,630 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2019-10-07 13:49:45,633 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,758 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2019-10-07 13:49:45,758 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2019-10-07 13:49:45,811 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,816 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,816 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:45,817 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,843 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,843 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:45,844 WARN L732 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-10-07 13:49:45,851 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-10-07 13:49:45,851 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-10-07 13:49:46,307 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:49:46,307 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:49:46,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:49:46 BoogieIcfgContainer [2019-10-07 13:49:46,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:49:46,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:49:46,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:49:46,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:49:46,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:49:43" (1/3) ... [2019-10-07 13:49:46,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb0ef54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:49:46, skipping insertion in model container [2019-10-07 13:49:46,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:49:44" (2/3) ... [2019-10-07 13:49:46,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb0ef54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:49:46, skipping insertion in model container [2019-10-07 13:49:46,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:49:46" (3/3) ... [2019-10-07 13:49:46,317 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2019-10-07 13:49:46,327 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:49:46,336 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:49:46,348 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:49:46,378 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:49:46,378 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:49:46,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:49:46,378 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:49:46,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:49:46,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:49:46,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:49:46,379 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:49:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states. [2019-10-07 13:49:46,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-07 13:49:46,415 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:46,416 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:49:46,418 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:46,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:46,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1185276521, now seen corresponding path program 1 times [2019-10-07 13:49:46,436 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:46,436 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:46,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:46,437 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:46,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:46,752 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:46,753 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:46,753 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:46,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:46,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:46,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:46,775 INFO L87 Difference]: Start difference. First operand 306 states. Second operand 3 states. [2019-10-07 13:49:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:46,931 INFO L93 Difference]: Finished difference Result 496 states and 730 transitions. [2019-10-07 13:49:46,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:46,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-07 13:49:46,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:46,952 INFO L225 Difference]: With dead ends: 496 [2019-10-07 13:49:46,953 INFO L226 Difference]: Without dead ends: 300 [2019-10-07 13:49:46,967 INFO L606 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 [2019-10-07 13:49:46,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-10-07 13:49:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2019-10-07 13:49:47,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2019-10-07 13:49:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 408 transitions. [2019-10-07 13:49:47,095 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 408 transitions. Word has length 18 [2019-10-07 13:49:47,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:47,096 INFO L462 AbstractCegarLoop]: Abstraction has 300 states and 408 transitions. [2019-10-07 13:49:47,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:47,096 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 408 transitions. [2019-10-07 13:49:47,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-07 13:49:47,098 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:47,098 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:49:47,098 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:47,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:47,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1685353303, now seen corresponding path program 1 times [2019-10-07 13:49:47,100 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:47,100 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:47,254 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,254 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:47,254 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:47,256 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:47,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:47,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:47,256 INFO L87 Difference]: Start difference. First operand 300 states and 408 transitions. Second operand 3 states. [2019-10-07 13:49:47,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:47,454 INFO L93 Difference]: Finished difference Result 516 states and 690 transitions. [2019-10-07 13:49:47,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:47,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2019-10-07 13:49:47,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:47,459 INFO L225 Difference]: With dead ends: 516 [2019-10-07 13:49:47,459 INFO L226 Difference]: Without dead ends: 387 [2019-10-07 13:49:47,461 INFO L606 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 [2019-10-07 13:49:47,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2019-10-07 13:49:47,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 368. [2019-10-07 13:49:47,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-10-07 13:49:47,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 488 transitions. [2019-10-07 13:49:47,505 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 488 transitions. Word has length 21 [2019-10-07 13:49:47,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:47,506 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 488 transitions. [2019-10-07 13:49:47,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:47,506 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2019-10-07 13:49:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-07 13:49:47,509 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:47,510 INFO L385 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] [2019-10-07 13:49:47,510 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash -915073831, now seen corresponding path program 1 times [2019-10-07 13:49:47,510 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:47,511 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,511 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:47,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:47,643 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,643 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:47,643 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:47,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:47,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:47,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:47,644 INFO L87 Difference]: Start difference. First operand 368 states and 488 transitions. Second operand 3 states. [2019-10-07 13:49:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:47,706 INFO L93 Difference]: Finished difference Result 466 states and 611 transitions. [2019-10-07 13:49:47,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:47,707 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-07 13:49:47,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:47,712 INFO L225 Difference]: With dead ends: 466 [2019-10-07 13:49:47,712 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 13:49:47,713 INFO L606 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 [2019-10-07 13:49:47,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 13:49:47,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 429. [2019-10-07 13:49:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 429 states. [2019-10-07 13:49:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 564 transitions. [2019-10-07 13:49:47,763 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 564 transitions. Word has length 26 [2019-10-07 13:49:47,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:47,763 INFO L462 AbstractCegarLoop]: Abstraction has 429 states and 564 transitions. [2019-10-07 13:49:47,763 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:47,764 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 564 transitions. [2019-10-07 13:49:47,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-07 13:49:47,773 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:47,774 INFO L385 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] [2019-10-07 13:49:47,774 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:47,774 INFO L82 PathProgramCache]: Analyzing trace with hash -218053855, now seen corresponding path program 1 times [2019-10-07 13:49:47,775 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:47,775 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,775 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,775 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:47,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:47,889 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:47,889 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:47,889 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:47,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:47,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:47,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:47,890 INFO L87 Difference]: Start difference. First operand 429 states and 564 transitions. Second operand 3 states. [2019-10-07 13:49:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:47,950 INFO L93 Difference]: Finished difference Result 769 states and 1008 transitions. [2019-10-07 13:49:47,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:47,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-10-07 13:49:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:47,961 INFO L225 Difference]: With dead ends: 769 [2019-10-07 13:49:47,961 INFO L226 Difference]: Without dead ends: 568 [2019-10-07 13:49:47,963 INFO L606 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 [2019-10-07 13:49:47,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-10-07 13:49:48,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 542. [2019-10-07 13:49:48,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-10-07 13:49:48,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 717 transitions. [2019-10-07 13:49:48,022 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 717 transitions. Word has length 27 [2019-10-07 13:49:48,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:48,022 INFO L462 AbstractCegarLoop]: Abstraction has 542 states and 717 transitions. [2019-10-07 13:49:48,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:48,023 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 717 transitions. [2019-10-07 13:49:48,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-10-07 13:49:48,026 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:48,026 INFO L385 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] [2019-10-07 13:49:48,026 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:48,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:48,027 INFO L82 PathProgramCache]: Analyzing trace with hash 477972724, now seen corresponding path program 1 times [2019-10-07 13:49:48,027 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:48,027 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,027 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:48,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:48,135 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,135 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:48,135 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:48,135 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:48,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:48,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:48,136 INFO L87 Difference]: Start difference. First operand 542 states and 717 transitions. Second operand 3 states. [2019-10-07 13:49:48,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:48,230 INFO L93 Difference]: Finished difference Result 551 states and 728 transitions. [2019-10-07 13:49:48,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:48,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2019-10-07 13:49:48,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:48,235 INFO L225 Difference]: With dead ends: 551 [2019-10-07 13:49:48,235 INFO L226 Difference]: Without dead ends: 548 [2019-10-07 13:49:48,236 INFO L606 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 [2019-10-07 13:49:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-10-07 13:49:48,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2019-10-07 13:49:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2019-10-07 13:49:48,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 724 transitions. [2019-10-07 13:49:48,268 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 724 transitions. Word has length 32 [2019-10-07 13:49:48,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:48,268 INFO L462 AbstractCegarLoop]: Abstraction has 548 states and 724 transitions. [2019-10-07 13:49:48,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:48,268 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 724 transitions. [2019-10-07 13:49:48,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-07 13:49:48,270 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:48,270 INFO L385 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] [2019-10-07 13:49:48,270 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:48,270 INFO L82 PathProgramCache]: Analyzing trace with hash 365807463, now seen corresponding path program 1 times [2019-10-07 13:49:48,271 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:48,271 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,271 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,271 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:48,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:48,310 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,310 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:48,310 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:48,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:48,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:48,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:48,311 INFO L87 Difference]: Start difference. First operand 548 states and 724 transitions. Second operand 3 states. [2019-10-07 13:49:48,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:48,402 INFO L93 Difference]: Finished difference Result 588 states and 772 transitions. [2019-10-07 13:49:48,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:48,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-10-07 13:49:48,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:48,408 INFO L225 Difference]: With dead ends: 588 [2019-10-07 13:49:48,408 INFO L226 Difference]: Without dead ends: 583 [2019-10-07 13:49:48,409 INFO L606 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 [2019-10-07 13:49:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-10-07 13:49:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 579. [2019-10-07 13:49:48,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-07 13:49:48,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 762 transitions. [2019-10-07 13:49:48,445 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 762 transitions. Word has length 34 [2019-10-07 13:49:48,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:48,446 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 762 transitions. [2019-10-07 13:49:48,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 762 transitions. [2019-10-07 13:49:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-07 13:49:48,448 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:48,448 INFO L385 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] [2019-10-07 13:49:48,449 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:48,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:48,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1092268321, now seen corresponding path program 1 times [2019-10-07 13:49:48,449 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:48,449 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,450 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:48,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:48,512 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,513 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:48,513 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:48,513 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:48,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:48,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:48,514 INFO L87 Difference]: Start difference. First operand 579 states and 762 transitions. Second operand 5 states. [2019-10-07 13:49:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:48,584 INFO L93 Difference]: Finished difference Result 592 states and 776 transitions. [2019-10-07 13:49:48,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:48,585 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-10-07 13:49:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:48,589 INFO L225 Difference]: With dead ends: 592 [2019-10-07 13:49:48,590 INFO L226 Difference]: Without dead ends: 577 [2019-10-07 13:49:48,590 INFO L606 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 [2019-10-07 13:49:48,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-07 13:49:48,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-07 13:49:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-07 13:49:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 758 transitions. [2019-10-07 13:49:48,622 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 758 transitions. Word has length 35 [2019-10-07 13:49:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:48,622 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 758 transitions. [2019-10-07 13:49:48,622 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 758 transitions. [2019-10-07 13:49:48,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-10-07 13:49:48,627 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:48,627 INFO L385 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] [2019-10-07 13:49:48,627 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:48,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:48,628 INFO L82 PathProgramCache]: Analyzing trace with hash 625993510, now seen corresponding path program 1 times [2019-10-07 13:49:48,628 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:48,628 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,628 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,628 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:48,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:48,695 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,695 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:48,695 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:48,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:48,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:48,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:48,697 INFO L87 Difference]: Start difference. First operand 577 states and 758 transitions. Second operand 5 states. [2019-10-07 13:49:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:48,784 INFO L93 Difference]: Finished difference Result 590 states and 772 transitions. [2019-10-07 13:49:48,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:48,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2019-10-07 13:49:48,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:48,788 INFO L225 Difference]: With dead ends: 590 [2019-10-07 13:49:48,789 INFO L226 Difference]: Without dead ends: 571 [2019-10-07 13:49:48,789 INFO L606 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 [2019-10-07 13:49:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2019-10-07 13:49:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2019-10-07 13:49:48,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2019-10-07 13:49:48,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 750 transitions. [2019-10-07 13:49:48,817 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 750 transitions. Word has length 34 [2019-10-07 13:49:48,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:48,817 INFO L462 AbstractCegarLoop]: Abstraction has 571 states and 750 transitions. [2019-10-07 13:49:48,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:48,818 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 750 transitions. [2019-10-07 13:49:48,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-10-07 13:49:48,819 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:48,819 INFO L385 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] [2019-10-07 13:49:48,819 INFO L410 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:48,820 INFO L82 PathProgramCache]: Analyzing trace with hash 765744359, now seen corresponding path program 1 times [2019-10-07 13:49:48,820 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:48,820 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,820 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:48,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:48,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:48,866 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:48,866 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:48,866 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:48,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:48,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:48,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:48,867 INFO L87 Difference]: Start difference. First operand 571 states and 750 transitions. Second operand 3 states. [2019-10-07 13:49:48,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:48,989 INFO L93 Difference]: Finished difference Result 729 states and 970 transitions. [2019-10-07 13:49:48,989 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:48,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-10-07 13:49:48,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:48,994 INFO L225 Difference]: With dead ends: 729 [2019-10-07 13:49:48,994 INFO L226 Difference]: Without dead ends: 726 [2019-10-07 13:49:48,995 INFO L606 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 [2019-10-07 13:49:48,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2019-10-07 13:49:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 617. [2019-10-07 13:49:49,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2019-10-07 13:49:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 814 transitions. [2019-10-07 13:49:49,027 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 814 transitions. Word has length 38 [2019-10-07 13:49:49,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:49,028 INFO L462 AbstractCegarLoop]: Abstraction has 617 states and 814 transitions. [2019-10-07 13:49:49,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 814 transitions. [2019-10-07 13:49:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-07 13:49:49,029 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:49,030 INFO L385 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] [2019-10-07 13:49:49,030 INFO L410 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:49,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:49,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2025179122, now seen corresponding path program 1 times [2019-10-07 13:49:49,030 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:49,031 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:49,031 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:49,031 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:49,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:49,157 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:49,157 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:49,157 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:49:49,158 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:49:49,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:49:49,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:49:49,159 INFO L87 Difference]: Start difference. First operand 617 states and 814 transitions. Second operand 8 states. [2019-10-07 13:49:49,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:49,991 INFO L93 Difference]: Finished difference Result 826 states and 1088 transitions. [2019-10-07 13:49:49,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 13:49:49,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-10-07 13:49:49,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:49,997 INFO L225 Difference]: With dead ends: 826 [2019-10-07 13:49:49,997 INFO L226 Difference]: Without dead ends: 748 [2019-10-07 13:49:49,998 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-10-07 13:49:50,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2019-10-07 13:49:50,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 611. [2019-10-07 13:49:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2019-10-07 13:49:50,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 800 transitions. [2019-10-07 13:49:50,037 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 800 transitions. Word has length 39 [2019-10-07 13:49:50,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:50,037 INFO L462 AbstractCegarLoop]: Abstraction has 611 states and 800 transitions. [2019-10-07 13:49:50,038 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:49:50,038 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 800 transitions. [2019-10-07 13:49:50,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-07 13:49:50,042 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:50,042 INFO L385 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] [2019-10-07 13:49:50,042 INFO L410 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:50,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:50,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1892539206, now seen corresponding path program 1 times [2019-10-07 13:49:50,043 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:50,043 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:50,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:50,044 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:50,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:50,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:50,149 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:50,149 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:50,149 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:49:50,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:49:50,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:49:50,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:49:50,151 INFO L87 Difference]: Start difference. First operand 611 states and 800 transitions. Second operand 4 states. [2019-10-07 13:49:50,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:50,230 INFO L93 Difference]: Finished difference Result 639 states and 833 transitions. [2019-10-07 13:49:50,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:49:50,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2019-10-07 13:49:50,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:50,236 INFO L225 Difference]: With dead ends: 639 [2019-10-07 13:49:50,237 INFO L226 Difference]: Without dead ends: 617 [2019-10-07 13:49:50,238 INFO L606 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 [2019-10-07 13:49:50,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2019-10-07 13:49:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 613. [2019-10-07 13:49:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-07 13:49:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 802 transitions. [2019-10-07 13:49:50,282 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 802 transitions. Word has length 37 [2019-10-07 13:49:50,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:50,283 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 802 transitions. [2019-10-07 13:49:50,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:49:50,283 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 802 transitions. [2019-10-07 13:49:50,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-10-07 13:49:50,285 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:50,285 INFO L385 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] [2019-10-07 13:49:50,285 INFO L410 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:50,286 INFO L82 PathProgramCache]: Analyzing trace with hash -962951765, now seen corresponding path program 1 times [2019-10-07 13:49:50,286 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:50,286 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:50,286 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:50,286 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:50,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:50,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:50,375 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:50,375 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:50,376 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:49:50,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:49:50,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:49:50,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:49:50,377 INFO L87 Difference]: Start difference. First operand 613 states and 802 transitions. Second operand 8 states. [2019-10-07 13:49:51,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:51,057 INFO L93 Difference]: Finished difference Result 640 states and 830 transitions. [2019-10-07 13:49:51,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:49:51,057 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-10-07 13:49:51,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:51,061 INFO L225 Difference]: With dead ends: 640 [2019-10-07 13:49:51,061 INFO L226 Difference]: Without dead ends: 631 [2019-10-07 13:49:51,062 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:49:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-07 13:49:51,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 613. [2019-10-07 13:49:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-07 13:49:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 800 transitions. [2019-10-07 13:49:51,098 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 800 transitions. Word has length 39 [2019-10-07 13:49:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:51,098 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 800 transitions. [2019-10-07 13:49:51,098 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:49:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 800 transitions. [2019-10-07 13:49:51,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-07 13:49:51,100 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:51,100 INFO L385 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] [2019-10-07 13:49:51,100 INFO L410 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:51,100 INFO L82 PathProgramCache]: Analyzing trace with hash -675985017, now seen corresponding path program 1 times [2019-10-07 13:49:51,101 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:51,101 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:51,101 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:51,101 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:51,190 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:51,191 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:51,191 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:49:51,191 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:49:51,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:49:51,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:49:51,192 INFO L87 Difference]: Start difference. First operand 613 states and 800 transitions. Second operand 8 states. [2019-10-07 13:49:51,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:51,889 INFO L93 Difference]: Finished difference Result 640 states and 827 transitions. [2019-10-07 13:49:51,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:49:51,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2019-10-07 13:49:51,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:51,893 INFO L225 Difference]: With dead ends: 640 [2019-10-07 13:49:51,893 INFO L226 Difference]: Without dead ends: 631 [2019-10-07 13:49:51,894 INFO L606 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 [2019-10-07 13:49:51,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2019-10-07 13:49:51,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 613. [2019-10-07 13:49:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2019-10-07 13:49:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 798 transitions. [2019-10-07 13:49:51,928 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 798 transitions. Word has length 40 [2019-10-07 13:49:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:51,928 INFO L462 AbstractCegarLoop]: Abstraction has 613 states and 798 transitions. [2019-10-07 13:49:51,928 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:49:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 798 transitions. [2019-10-07 13:49:51,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-10-07 13:49:51,930 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:51,930 INFO L385 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] [2019-10-07 13:49:51,930 INFO L410 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:51,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:51,931 INFO L82 PathProgramCache]: Analyzing trace with hash -169617054, now seen corresponding path program 1 times [2019-10-07 13:49:51,931 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:51,931 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:51,931 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:51,931 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:51,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:51,975 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:51,976 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:51,976 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:51,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:51,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:51,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:51,977 INFO L87 Difference]: Start difference. First operand 613 states and 798 transitions. Second operand 3 states. [2019-10-07 13:49:52,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:52,027 INFO L93 Difference]: Finished difference Result 643 states and 834 transitions. [2019-10-07 13:49:52,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:52,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-10-07 13:49:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:52,031 INFO L225 Difference]: With dead ends: 643 [2019-10-07 13:49:52,031 INFO L226 Difference]: Without dead ends: 606 [2019-10-07 13:49:52,032 INFO L606 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 [2019-10-07 13:49:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2019-10-07 13:49:52,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 602. [2019-10-07 13:49:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-10-07 13:49:52,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 779 transitions. [2019-10-07 13:49:52,064 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 779 transitions. Word has length 40 [2019-10-07 13:49:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:52,064 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 779 transitions. [2019-10-07 13:49:52,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 779 transitions. [2019-10-07 13:49:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 13:49:52,066 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:52,066 INFO L385 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] [2019-10-07 13:49:52,066 INFO L410 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:52,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:52,066 INFO L82 PathProgramCache]: Analyzing trace with hash 574216916, now seen corresponding path program 1 times [2019-10-07 13:49:52,067 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:52,067 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,067 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,067 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:52,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:52,125 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,125 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:52,126 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:52,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:52,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:52,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:52,129 INFO L87 Difference]: Start difference. First operand 602 states and 779 transitions. Second operand 5 states. [2019-10-07 13:49:52,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:52,197 INFO L93 Difference]: Finished difference Result 618 states and 794 transitions. [2019-10-07 13:49:52,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:52,197 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-10-07 13:49:52,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:52,201 INFO L225 Difference]: With dead ends: 618 [2019-10-07 13:49:52,201 INFO L226 Difference]: Without dead ends: 600 [2019-10-07 13:49:52,203 INFO L606 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 [2019-10-07 13:49:52,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-10-07 13:49:52,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-10-07 13:49:52,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-10-07 13:49:52,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 775 transitions. [2019-10-07 13:49:52,238 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 775 transitions. Word has length 41 [2019-10-07 13:49:52,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:52,238 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 775 transitions. [2019-10-07 13:49:52,238 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:52,238 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 775 transitions. [2019-10-07 13:49:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 13:49:52,239 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:52,240 INFO L385 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] [2019-10-07 13:49:52,240 INFO L410 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:52,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:52,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1755444174, now seen corresponding path program 1 times [2019-10-07 13:49:52,240 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:52,240 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,241 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:52,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:52,321 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,321 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:52,321 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 13:49:52,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 13:49:52,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 13:49:52,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 13:49:52,325 INFO L87 Difference]: Start difference. First operand 600 states and 775 transitions. Second operand 4 states. [2019-10-07 13:49:52,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:52,626 INFO L93 Difference]: Finished difference Result 650 states and 819 transitions. [2019-10-07 13:49:52,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 13:49:52,627 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-10-07 13:49:52,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:52,630 INFO L225 Difference]: With dead ends: 650 [2019-10-07 13:49:52,630 INFO L226 Difference]: Without dead ends: 461 [2019-10-07 13:49:52,631 INFO L606 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 [2019-10-07 13:49:52,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-07 13:49:52,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 442. [2019-10-07 13:49:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2019-10-07 13:49:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 551 transitions. [2019-10-07 13:49:52,667 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 551 transitions. Word has length 43 [2019-10-07 13:49:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:52,669 INFO L462 AbstractCegarLoop]: Abstraction has 442 states and 551 transitions. [2019-10-07 13:49:52,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 13:49:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 551 transitions. [2019-10-07 13:49:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-07 13:49:52,670 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:52,670 INFO L385 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] [2019-10-07 13:49:52,671 INFO L410 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:52,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:52,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1072987595, now seen corresponding path program 1 times [2019-10-07 13:49:52,671 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:52,671 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,672 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,672 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:52,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:52,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:52,753 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,753 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:52,754 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:52,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:52,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:52,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:52,811 INFO L87 Difference]: Start difference. First operand 442 states and 551 transitions. Second operand 5 states. [2019-10-07 13:49:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:52,881 INFO L93 Difference]: Finished difference Result 458 states and 566 transitions. [2019-10-07 13:49:52,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:52,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2019-10-07 13:49:52,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:52,884 INFO L225 Difference]: With dead ends: 458 [2019-10-07 13:49:52,884 INFO L226 Difference]: Without dead ends: 440 [2019-10-07 13:49:52,886 INFO L606 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 [2019-10-07 13:49:52,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-07 13:49:52,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2019-10-07 13:49:52,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2019-10-07 13:49:52,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 547 transitions. [2019-10-07 13:49:52,912 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 547 transitions. Word has length 41 [2019-10-07 13:49:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:52,912 INFO L462 AbstractCegarLoop]: Abstraction has 440 states and 547 transitions. [2019-10-07 13:49:52,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:52,913 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 547 transitions. [2019-10-07 13:49:52,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-07 13:49:52,914 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:52,914 INFO L385 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] [2019-10-07 13:49:52,914 INFO L410 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:52,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:52,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1901639222, now seen corresponding path program 1 times [2019-10-07 13:49:52,915 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:52,915 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,915 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,915 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:52,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:52,971 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:52,971 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:52,971 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:52,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:52,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:52,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:52,972 INFO L87 Difference]: Start difference. First operand 440 states and 547 transitions. Second operand 3 states. [2019-10-07 13:49:53,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:53,091 INFO L93 Difference]: Finished difference Result 601 states and 761 transitions. [2019-10-07 13:49:53,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:53,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-07 13:49:53,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:53,095 INFO L225 Difference]: With dead ends: 601 [2019-10-07 13:49:53,096 INFO L226 Difference]: Without dead ends: 589 [2019-10-07 13:49:53,096 INFO L606 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 [2019-10-07 13:49:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2019-10-07 13:49:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 489. [2019-10-07 13:49:53,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-10-07 13:49:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 607 transitions. [2019-10-07 13:49:53,125 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 607 transitions. Word has length 43 [2019-10-07 13:49:53,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:53,125 INFO L462 AbstractCegarLoop]: Abstraction has 489 states and 607 transitions. [2019-10-07 13:49:53,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:53,125 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 607 transitions. [2019-10-07 13:49:53,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-10-07 13:49:53,127 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:53,127 INFO L385 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] [2019-10-07 13:49:53,127 INFO L410 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:53,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:53,127 INFO L82 PathProgramCache]: Analyzing trace with hash -896567292, now seen corresponding path program 1 times [2019-10-07 13:49:53,128 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:53,128 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:53,128 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:53,128 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:53,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:53,174 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:53,174 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:53,174 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:53,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:53,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:53,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:53,175 INFO L87 Difference]: Start difference. First operand 489 states and 607 transitions. Second operand 3 states. [2019-10-07 13:49:53,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:53,250 INFO L93 Difference]: Finished difference Result 670 states and 839 transitions. [2019-10-07 13:49:53,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:53,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-10-07 13:49:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:53,253 INFO L225 Difference]: With dead ends: 670 [2019-10-07 13:49:53,253 INFO L226 Difference]: Without dead ends: 492 [2019-10-07 13:49:53,254 INFO L606 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 [2019-10-07 13:49:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-10-07 13:49:53,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2019-10-07 13:49:53,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2019-10-07 13:49:53,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 611 transitions. [2019-10-07 13:49:53,281 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 611 transitions. Word has length 48 [2019-10-07 13:49:53,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:53,282 INFO L462 AbstractCegarLoop]: Abstraction has 492 states and 611 transitions. [2019-10-07 13:49:53,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:53,282 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 611 transitions. [2019-10-07 13:49:53,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-07 13:49:53,283 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:53,283 INFO L385 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] [2019-10-07 13:49:53,284 INFO L410 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:53,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:53,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1631605306, now seen corresponding path program 1 times [2019-10-07 13:49:53,284 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:53,284 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:53,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:53,285 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:53,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:53,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:53,418 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:53,418 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:53,418 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 13:49:53,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 13:49:53,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 13:49:53,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:49:53,420 INFO L87 Difference]: Start difference. First operand 492 states and 611 transitions. Second operand 10 states. [2019-10-07 13:49:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:55,465 INFO L93 Difference]: Finished difference Result 617 states and 775 transitions. [2019-10-07 13:49:55,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-07 13:49:55,465 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2019-10-07 13:49:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:55,470 INFO L225 Difference]: With dead ends: 617 [2019-10-07 13:49:55,471 INFO L226 Difference]: Without dead ends: 606 [2019-10-07 13:49:55,472 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2019-10-07 13:49:55,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2019-10-07 13:49:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 530. [2019-10-07 13:49:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-10-07 13:49:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 653 transitions. [2019-10-07 13:49:55,525 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 653 transitions. Word has length 44 [2019-10-07 13:49:55,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:55,526 INFO L462 AbstractCegarLoop]: Abstraction has 530 states and 653 transitions. [2019-10-07 13:49:55,526 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 13:49:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 653 transitions. [2019-10-07 13:49:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-07 13:49:55,528 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:55,528 INFO L385 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] [2019-10-07 13:49:55,529 INFO L410 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1620124305, now seen corresponding path program 1 times [2019-10-07 13:49:55,529 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:55,530 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:55,530 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:55,530 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:55,657 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:55,658 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:55,658 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:49:55,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:49:55,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:49:55,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:49:55,660 INFO L87 Difference]: Start difference. First operand 530 states and 653 transitions. Second operand 7 states. [2019-10-07 13:49:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:56,465 INFO L93 Difference]: Finished difference Result 610 states and 753 transitions. [2019-10-07 13:49:56,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 13:49:56,465 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2019-10-07 13:49:56,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:56,468 INFO L225 Difference]: With dead ends: 610 [2019-10-07 13:49:56,468 INFO L226 Difference]: Without dead ends: 545 [2019-10-07 13:49:56,469 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-10-07 13:49:56,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-10-07 13:49:56,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 541. [2019-10-07 13:49:56,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2019-10-07 13:49:56,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 665 transitions. [2019-10-07 13:49:56,509 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 665 transitions. Word has length 44 [2019-10-07 13:49:56,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:56,509 INFO L462 AbstractCegarLoop]: Abstraction has 541 states and 665 transitions. [2019-10-07 13:49:56,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:49:56,510 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 665 transitions. [2019-10-07 13:49:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 13:49:56,511 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:56,511 INFO L385 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] [2019-10-07 13:49:56,511 INFO L410 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:56,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1246355178, now seen corresponding path program 1 times [2019-10-07 13:49:56,512 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:56,512 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:56,512 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:56,513 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:56,624 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:56,624 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:56,624 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:49:56,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:49:56,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:49:56,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:49:56,625 INFO L87 Difference]: Start difference. First operand 541 states and 665 transitions. Second operand 7 states. [2019-10-07 13:49:56,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:56,786 INFO L93 Difference]: Finished difference Result 570 states and 693 transitions. [2019-10-07 13:49:56,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:49:56,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-07 13:49:56,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:56,791 INFO L225 Difference]: With dead ends: 570 [2019-10-07 13:49:56,791 INFO L226 Difference]: Without dead ends: 549 [2019-10-07 13:49:56,792 INFO L606 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 [2019-10-07 13:49:56,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2019-10-07 13:49:56,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 536. [2019-10-07 13:49:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-07 13:49:56,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 648 transitions. [2019-10-07 13:49:56,835 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 648 transitions. Word has length 45 [2019-10-07 13:49:56,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:56,835 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 648 transitions. [2019-10-07 13:49:56,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:49:56,836 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 648 transitions. [2019-10-07 13:49:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 13:49:56,841 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:56,841 INFO L385 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] [2019-10-07 13:49:56,841 INFO L410 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:56,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1857399340, now seen corresponding path program 1 times [2019-10-07 13:49:56,842 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:56,842 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:56,842 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:56,842 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:56,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:56,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:56,957 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:56,958 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:56,958 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:49:56,959 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:49:56,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:49:56,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:49:56,959 INFO L87 Difference]: Start difference. First operand 536 states and 648 transitions. Second operand 9 states. [2019-10-07 13:49:58,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:58,352 INFO L93 Difference]: Finished difference Result 624 states and 744 transitions. [2019-10-07 13:49:58,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-07 13:49:58,352 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2019-10-07 13:49:58,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:58,356 INFO L225 Difference]: With dead ends: 624 [2019-10-07 13:49:58,356 INFO L226 Difference]: Without dead ends: 564 [2019-10-07 13:49:58,357 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2019-10-07 13:49:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-10-07 13:49:58,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 501. [2019-10-07 13:49:58,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2019-10-07 13:49:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 602 transitions. [2019-10-07 13:49:58,398 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 602 transitions. Word has length 45 [2019-10-07 13:49:58,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:58,398 INFO L462 AbstractCegarLoop]: Abstraction has 501 states and 602 transitions. [2019-10-07 13:49:58,398 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:49:58,398 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 602 transitions. [2019-10-07 13:49:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-07 13:49:58,402 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:58,402 INFO L385 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] [2019-10-07 13:49:58,402 INFO L410 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:58,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:58,403 INFO L82 PathProgramCache]: Analyzing trace with hash 305885669, now seen corresponding path program 1 times [2019-10-07 13:49:58,403 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:58,403 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,403 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,403 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:58,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:58,446 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,447 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:58,447 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 13:49:58,447 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 13:49:58,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 13:49:58,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 13:49:58,448 INFO L87 Difference]: Start difference. First operand 501 states and 602 transitions. Second operand 3 states. [2019-10-07 13:49:58,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:58,560 INFO L93 Difference]: Finished difference Result 587 states and 707 transitions. [2019-10-07 13:49:58,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 13:49:58,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-10-07 13:49:58,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:58,564 INFO L225 Difference]: With dead ends: 587 [2019-10-07 13:49:58,564 INFO L226 Difference]: Without dead ends: 569 [2019-10-07 13:49:58,567 INFO L606 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 [2019-10-07 13:49:58,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-10-07 13:49:58,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 521. [2019-10-07 13:49:58,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-10-07 13:49:58,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 626 transitions. [2019-10-07 13:49:58,616 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 626 transitions. Word has length 45 [2019-10-07 13:49:58,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:58,616 INFO L462 AbstractCegarLoop]: Abstraction has 521 states and 626 transitions. [2019-10-07 13:49:58,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 13:49:58,617 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 626 transitions. [2019-10-07 13:49:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 13:49:58,619 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:58,619 INFO L385 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] [2019-10-07 13:49:58,619 INFO L410 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:58,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:58,620 INFO L82 PathProgramCache]: Analyzing trace with hash 909821056, now seen corresponding path program 1 times [2019-10-07 13:49:58,620 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:58,620 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,620 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,621 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:58,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:58,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:58,794 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,794 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:58,794 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:58,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:58,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:58,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:58,795 INFO L87 Difference]: Start difference. First operand 521 states and 626 transitions. Second operand 5 states. [2019-10-07 13:49:58,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:58,839 INFO L93 Difference]: Finished difference Result 699 states and 855 transitions. [2019-10-07 13:49:58,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:58,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2019-10-07 13:49:58,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:58,843 INFO L225 Difference]: With dead ends: 699 [2019-10-07 13:49:58,843 INFO L226 Difference]: Without dead ends: 489 [2019-10-07 13:49:58,844 INFO L606 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 [2019-10-07 13:49:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2019-10-07 13:49:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2019-10-07 13:49:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-10-07 13:49:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 579 transitions. [2019-10-07 13:49:58,881 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 579 transitions. Word has length 53 [2019-10-07 13:49:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:58,881 INFO L462 AbstractCegarLoop]: Abstraction has 489 states and 579 transitions. [2019-10-07 13:49:58,881 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:58,881 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 579 transitions. [2019-10-07 13:49:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 13:49:58,883 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:58,883 INFO L385 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] [2019-10-07 13:49:58,883 INFO L410 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:58,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1345400191, now seen corresponding path program 1 times [2019-10-07 13:49:58,884 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:58,884 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,884 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,884 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:58,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:58,986 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:58,987 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:58,987 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:49:58,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:49:58,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:49:58,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:49:58,988 INFO L87 Difference]: Start difference. First operand 489 states and 579 transitions. Second operand 8 states. [2019-10-07 13:49:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:59,209 INFO L93 Difference]: Finished difference Result 505 states and 595 transitions. [2019-10-07 13:49:59,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:49:59,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 46 [2019-10-07 13:49:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:59,212 INFO L225 Difference]: With dead ends: 505 [2019-10-07 13:49:59,212 INFO L226 Difference]: Without dead ends: 501 [2019-10-07 13:49:59,213 INFO L606 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 [2019-10-07 13:49:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2019-10-07 13:49:59,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 497. [2019-10-07 13:49:59,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2019-10-07 13:49:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 587 transitions. [2019-10-07 13:49:59,250 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 587 transitions. Word has length 46 [2019-10-07 13:49:59,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:59,251 INFO L462 AbstractCegarLoop]: Abstraction has 497 states and 587 transitions. [2019-10-07 13:49:59,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:49:59,251 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 587 transitions. [2019-10-07 13:49:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-07 13:49:59,255 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:59,255 INFO L385 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] [2019-10-07 13:49:59,255 INFO L410 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:59,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1345123361, now seen corresponding path program 1 times [2019-10-07 13:49:59,255 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:59,256 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:59,256 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,256 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:59,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:59,314 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:59,314 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:59,314 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:49:59,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:49:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:49:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:49:59,315 INFO L87 Difference]: Start difference. First operand 497 states and 587 transitions. Second operand 5 states. [2019-10-07 13:49:59,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:59,703 INFO L93 Difference]: Finished difference Result 512 states and 601 transitions. [2019-10-07 13:49:59,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:49:59,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-10-07 13:49:59,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:59,707 INFO L225 Difference]: With dead ends: 512 [2019-10-07 13:49:59,708 INFO L226 Difference]: Without dead ends: 494 [2019-10-07 13:49:59,708 INFO L606 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 [2019-10-07 13:49:59,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-10-07 13:49:59,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 487. [2019-10-07 13:49:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2019-10-07 13:49:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 575 transitions. [2019-10-07 13:49:59,752 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 575 transitions. Word has length 46 [2019-10-07 13:49:59,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:59,752 INFO L462 AbstractCegarLoop]: Abstraction has 487 states and 575 transitions. [2019-10-07 13:49:59,752 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:49:59,752 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 575 transitions. [2019-10-07 13:49:59,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 13:49:59,754 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:59,754 INFO L385 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] [2019-10-07 13:49:59,754 INFO L410 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:59,755 INFO L82 PathProgramCache]: Analyzing trace with hash -903148805, now seen corresponding path program 1 times [2019-10-07 13:49:59,755 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:59,755 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:59,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,755 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:49:59,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:49:59,839 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:59,839 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:49:59,839 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:49:59,840 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:49:59,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:49:59,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:49:59,840 INFO L87 Difference]: Start difference. First operand 487 states and 575 transitions. Second operand 8 states. [2019-10-07 13:49:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:49:59,919 INFO L93 Difference]: Finished difference Result 500 states and 587 transitions. [2019-10-07 13:49:59,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:49:59,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 47 [2019-10-07 13:49:59,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:49:59,922 INFO L225 Difference]: With dead ends: 500 [2019-10-07 13:49:59,922 INFO L226 Difference]: Without dead ends: 476 [2019-10-07 13:49:59,923 INFO L606 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 [2019-10-07 13:49:59,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2019-10-07 13:49:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2019-10-07 13:49:59,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2019-10-07 13:49:59,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 562 transitions. [2019-10-07 13:49:59,964 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 562 transitions. Word has length 47 [2019-10-07 13:49:59,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:49:59,964 INFO L462 AbstractCegarLoop]: Abstraction has 476 states and 562 transitions. [2019-10-07 13:49:59,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:49:59,965 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 562 transitions. [2019-10-07 13:49:59,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-07 13:49:59,966 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:49:59,967 INFO L385 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] [2019-10-07 13:49:59,967 INFO L410 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:49:59,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:49:59,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1100389975, now seen corresponding path program 1 times [2019-10-07 13:49:59,968 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:49:59,968 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:49:59,968 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,968 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:49:59,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:49:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:00,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:00,047 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,047 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:00,047 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:50:00,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:50:00,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:50:00,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:50:00,048 INFO L87 Difference]: Start difference. First operand 476 states and 562 transitions. Second operand 6 states. [2019-10-07 13:50:00,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:00,107 INFO L93 Difference]: Finished difference Result 505 states and 595 transitions. [2019-10-07 13:50:00,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:50:00,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 47 [2019-10-07 13:50:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:00,110 INFO L225 Difference]: With dead ends: 505 [2019-10-07 13:50:00,110 INFO L226 Difference]: Without dead ends: 478 [2019-10-07 13:50:00,112 INFO L606 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 [2019-10-07 13:50:00,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-07 13:50:00,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-10-07 13:50:00,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-07 13:50:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 564 transitions. [2019-10-07 13:50:00,145 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 564 transitions. Word has length 47 [2019-10-07 13:50:00,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:00,146 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 564 transitions. [2019-10-07 13:50:00,146 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:50:00,146 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 564 transitions. [2019-10-07 13:50:00,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 13:50:00,147 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:00,147 INFO L385 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] [2019-10-07 13:50:00,148 INFO L410 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:00,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1633456135, now seen corresponding path program 1 times [2019-10-07 13:50:00,148 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:00,148 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,149 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,149 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:00,207 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,207 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:00,208 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:50:00,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:50:00,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:50:00,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:50:00,209 INFO L87 Difference]: Start difference. First operand 478 states and 564 transitions. Second operand 5 states. [2019-10-07 13:50:00,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:00,538 INFO L93 Difference]: Finished difference Result 656 states and 787 transitions. [2019-10-07 13:50:00,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:50:00,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-10-07 13:50:00,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:00,543 INFO L225 Difference]: With dead ends: 656 [2019-10-07 13:50:00,543 INFO L226 Difference]: Without dead ends: 478 [2019-10-07 13:50:00,545 INFO L606 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 [2019-10-07 13:50:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2019-10-07 13:50:00,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2019-10-07 13:50:00,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2019-10-07 13:50:00,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 563 transitions. [2019-10-07 13:50:00,594 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 563 transitions. Word has length 57 [2019-10-07 13:50:00,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:00,595 INFO L462 AbstractCegarLoop]: Abstraction has 478 states and 563 transitions. [2019-10-07 13:50:00,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:50:00,595 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 563 transitions. [2019-10-07 13:50:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-10-07 13:50:00,598 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:00,598 INFO L385 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] [2019-10-07 13:50:00,598 INFO L410 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:00,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:00,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1328924742, now seen corresponding path program 1 times [2019-10-07 13:50:00,599 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:00,599 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,600 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,600 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:00,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:00,717 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,718 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:00,718 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:50:00,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:50:00,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:50:00,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:50:00,719 INFO L87 Difference]: Start difference. First operand 478 states and 563 transitions. Second operand 8 states. [2019-10-07 13:50:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:00,930 INFO L93 Difference]: Finished difference Result 492 states and 576 transitions. [2019-10-07 13:50:00,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:50:00,931 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 49 [2019-10-07 13:50:00,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:00,934 INFO L225 Difference]: With dead ends: 492 [2019-10-07 13:50:00,934 INFO L226 Difference]: Without dead ends: 474 [2019-10-07 13:50:00,935 INFO L606 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 [2019-10-07 13:50:00,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2019-10-07 13:50:00,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2019-10-07 13:50:00,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-07 13:50:00,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 557 transitions. [2019-10-07 13:50:00,966 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 557 transitions. Word has length 49 [2019-10-07 13:50:00,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:00,966 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 557 transitions. [2019-10-07 13:50:00,966 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:50:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 557 transitions. [2019-10-07 13:50:00,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-07 13:50:00,968 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:00,968 INFO L385 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] [2019-10-07 13:50:00,968 INFO L410 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:00,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:00,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1913204380, now seen corresponding path program 1 times [2019-10-07 13:50:00,969 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:00,969 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:00,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,969 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:01,110 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,110 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:01,110 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:50:01,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:50:01,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:50:01,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:50:01,111 INFO L87 Difference]: Start difference. First operand 474 states and 557 transitions. Second operand 7 states. [2019-10-07 13:50:01,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:01,404 INFO L93 Difference]: Finished difference Result 493 states and 577 transitions. [2019-10-07 13:50:01,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 13:50:01,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-07 13:50:01,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:01,408 INFO L225 Difference]: With dead ends: 493 [2019-10-07 13:50:01,408 INFO L226 Difference]: Without dead ends: 490 [2019-10-07 13:50:01,410 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:50:01,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-07 13:50:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 474. [2019-10-07 13:50:01,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 474 states. [2019-10-07 13:50:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 557 transitions. [2019-10-07 13:50:01,453 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 557 transitions. Word has length 58 [2019-10-07 13:50:01,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:01,453 INFO L462 AbstractCegarLoop]: Abstraction has 474 states and 557 transitions. [2019-10-07 13:50:01,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:50:01,454 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 557 transitions. [2019-10-07 13:50:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 13:50:01,455 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:01,455 INFO L385 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] [2019-10-07 13:50:01,455 INFO L410 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:01,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:01,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1487745293, now seen corresponding path program 1 times [2019-10-07 13:50:01,456 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:01,456 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,456 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,456 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:01,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:01,512 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,512 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:01,512 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:50:01,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:50:01,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:50:01,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:50:01,513 INFO L87 Difference]: Start difference. First operand 474 states and 557 transitions. Second operand 6 states. [2019-10-07 13:50:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:01,590 INFO L93 Difference]: Finished difference Result 503 states and 585 transitions. [2019-10-07 13:50:01,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:50:01,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2019-10-07 13:50:01,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:01,593 INFO L225 Difference]: With dead ends: 503 [2019-10-07 13:50:01,593 INFO L226 Difference]: Without dead ends: 481 [2019-10-07 13:50:01,593 INFO L606 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 [2019-10-07 13:50:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2019-10-07 13:50:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 469. [2019-10-07 13:50:01,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 469 states. [2019-10-07 13:50:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 551 transitions. [2019-10-07 13:50:01,630 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 551 transitions. Word has length 52 [2019-10-07 13:50:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:01,631 INFO L462 AbstractCegarLoop]: Abstraction has 469 states and 551 transitions. [2019-10-07 13:50:01,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:50:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 551 transitions. [2019-10-07 13:50:01,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 13:50:01,632 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:01,632 INFO L385 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] [2019-10-07 13:50:01,633 INFO L410 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:01,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:01,633 INFO L82 PathProgramCache]: Analyzing trace with hash -457860153, now seen corresponding path program 1 times [2019-10-07 13:50:01,633 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:01,633 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,633 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,634 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:01,699 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,699 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:01,699 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:50:01,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:50:01,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:50:01,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:50:01,700 INFO L87 Difference]: Start difference. First operand 469 states and 551 transitions. Second operand 6 states. [2019-10-07 13:50:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:01,760 INFO L93 Difference]: Finished difference Result 481 states and 563 transitions. [2019-10-07 13:50:01,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-07 13:50:01,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2019-10-07 13:50:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:01,762 INFO L225 Difference]: With dead ends: 481 [2019-10-07 13:50:01,763 INFO L226 Difference]: Without dead ends: 454 [2019-10-07 13:50:01,763 INFO L606 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 [2019-10-07 13:50:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-10-07 13:50:01,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 452. [2019-10-07 13:50:01,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-07 13:50:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 530 transitions. [2019-10-07 13:50:01,799 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 530 transitions. Word has length 53 [2019-10-07 13:50:01,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:01,799 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 530 transitions. [2019-10-07 13:50:01,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:50:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 530 transitions. [2019-10-07 13:50:01,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-07 13:50:01,801 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:01,801 INFO L385 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] [2019-10-07 13:50:01,801 INFO L410 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:01,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:01,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1733197131, now seen corresponding path program 1 times [2019-10-07 13:50:01,802 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:01,802 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,802 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:01,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:01,932 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:01,932 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:01,933 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:50:01,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:50:01,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:50:01,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:50:01,934 INFO L87 Difference]: Start difference. First operand 452 states and 530 transitions. Second operand 5 states. [2019-10-07 13:50:02,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:02,460 INFO L93 Difference]: Finished difference Result 705 states and 841 transitions. [2019-10-07 13:50:02,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:50:02,460 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 57 [2019-10-07 13:50:02,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:02,463 INFO L225 Difference]: With dead ends: 705 [2019-10-07 13:50:02,463 INFO L226 Difference]: Without dead ends: 533 [2019-10-07 13:50:02,464 INFO L606 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 [2019-10-07 13:50:02,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2019-10-07 13:50:02,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 502. [2019-10-07 13:50:02,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2019-10-07 13:50:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 592 transitions. [2019-10-07 13:50:02,505 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 592 transitions. Word has length 57 [2019-10-07 13:50:02,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:02,505 INFO L462 AbstractCegarLoop]: Abstraction has 502 states and 592 transitions. [2019-10-07 13:50:02,505 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:50:02,506 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 592 transitions. [2019-10-07 13:50:02,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 13:50:02,507 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:02,507 INFO L385 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] [2019-10-07 13:50:02,507 INFO L410 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:02,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:02,508 INFO L82 PathProgramCache]: Analyzing trace with hash 838098221, now seen corresponding path program 1 times [2019-10-07 13:50:02,508 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:02,508 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:02,508 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:02,509 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:02,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:02,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:02,613 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:02,613 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:02,613 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:50:02,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:50:02,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:50:02,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:50:02,614 INFO L87 Difference]: Start difference. First operand 502 states and 592 transitions. Second operand 9 states. [2019-10-07 13:50:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:02,826 INFO L93 Difference]: Finished difference Result 517 states and 606 transitions. [2019-10-07 13:50:02,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:50:02,826 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-10-07 13:50:02,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:02,829 INFO L225 Difference]: With dead ends: 517 [2019-10-07 13:50:02,830 INFO L226 Difference]: Without dead ends: 498 [2019-10-07 13:50:02,830 INFO L606 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 [2019-10-07 13:50:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2019-10-07 13:50:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2019-10-07 13:50:02,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-10-07 13:50:02,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 586 transitions. [2019-10-07 13:50:02,869 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 586 transitions. Word has length 52 [2019-10-07 13:50:02,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:02,870 INFO L462 AbstractCegarLoop]: Abstraction has 498 states and 586 transitions. [2019-10-07 13:50:02,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:50:02,870 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 586 transitions. [2019-10-07 13:50:02,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 13:50:02,871 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:02,871 INFO L385 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] [2019-10-07 13:50:02,872 INFO L410 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:02,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:02,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1594848538, now seen corresponding path program 1 times [2019-10-07 13:50:02,872 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:02,872 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:02,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:02,872 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:02,992 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:02,992 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:02,993 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:50:02,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:50:02,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:50:02,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:50:02,994 INFO L87 Difference]: Start difference. First operand 498 states and 586 transitions. Second operand 9 states. [2019-10-07 13:50:03,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:03,221 INFO L93 Difference]: Finished difference Result 513 states and 600 transitions. [2019-10-07 13:50:03,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:50:03,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-10-07 13:50:03,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:03,224 INFO L225 Difference]: With dead ends: 513 [2019-10-07 13:50:03,224 INFO L226 Difference]: Without dead ends: 494 [2019-10-07 13:50:03,225 INFO L606 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 [2019-10-07 13:50:03,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-10-07 13:50:03,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2019-10-07 13:50:03,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-10-07 13:50:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 580 transitions. [2019-10-07 13:50:03,272 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 580 transitions. Word has length 52 [2019-10-07 13:50:03,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:03,273 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 580 transitions. [2019-10-07 13:50:03,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:50:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 580 transitions. [2019-10-07 13:50:03,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 13:50:03,274 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:03,275 INFO L385 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] [2019-10-07 13:50:03,275 INFO L410 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:03,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:03,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1542682953, now seen corresponding path program 1 times [2019-10-07 13:50:03,275 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:03,276 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,276 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,276 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:03,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:03,391 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,392 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:03,392 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:50:03,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:50:03,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:50:03,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:50:03,393 INFO L87 Difference]: Start difference. First operand 494 states and 580 transitions. Second operand 9 states. [2019-10-07 13:50:03,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:03,594 INFO L93 Difference]: Finished difference Result 509 states and 594 transitions. [2019-10-07 13:50:03,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:50:03,595 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-10-07 13:50:03,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:03,598 INFO L225 Difference]: With dead ends: 509 [2019-10-07 13:50:03,598 INFO L226 Difference]: Without dead ends: 490 [2019-10-07 13:50:03,598 INFO L606 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 [2019-10-07 13:50:03,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2019-10-07 13:50:03,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2019-10-07 13:50:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2019-10-07 13:50:03,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 574 transitions. [2019-10-07 13:50:03,634 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 574 transitions. Word has length 53 [2019-10-07 13:50:03,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:03,634 INFO L462 AbstractCegarLoop]: Abstraction has 490 states and 574 transitions. [2019-10-07 13:50:03,634 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:50:03,634 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 574 transitions. [2019-10-07 13:50:03,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 13:50:03,636 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:03,636 INFO L385 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] [2019-10-07 13:50:03,636 INFO L410 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:03,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1273072073, now seen corresponding path program 1 times [2019-10-07 13:50:03,636 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:03,637 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,637 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,637 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:03,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:03,695 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,695 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:03,696 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:50:03,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:50:03,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:50:03,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:50:03,696 INFO L87 Difference]: Start difference. First operand 490 states and 574 transitions. Second operand 5 states. [2019-10-07 13:50:03,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:03,747 INFO L93 Difference]: Finished difference Result 511 states and 593 transitions. [2019-10-07 13:50:03,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:50:03,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-10-07 13:50:03,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:03,750 INFO L225 Difference]: With dead ends: 511 [2019-10-07 13:50:03,751 INFO L226 Difference]: Without dead ends: 488 [2019-10-07 13:50:03,751 INFO L606 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 [2019-10-07 13:50:03,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-10-07 13:50:03,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 485. [2019-10-07 13:50:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 485 states. [2019-10-07 13:50:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 567 transitions. [2019-10-07 13:50:03,788 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 567 transitions. Word has length 56 [2019-10-07 13:50:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:03,788 INFO L462 AbstractCegarLoop]: Abstraction has 485 states and 567 transitions. [2019-10-07 13:50:03,788 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:50:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 567 transitions. [2019-10-07 13:50:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 13:50:03,790 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:03,790 INFO L385 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] [2019-10-07 13:50:03,790 INFO L410 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:03,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash 63394735, now seen corresponding path program 1 times [2019-10-07 13:50:03,791 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:03,791 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,791 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:03,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:03,936 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:03,937 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:03,937 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-07 13:50:03,938 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-07 13:50:03,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-07 13:50:03,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:50:03,939 INFO L87 Difference]: Start difference. First operand 485 states and 567 transitions. Second operand 9 states. [2019-10-07 13:50:04,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:04,215 INFO L93 Difference]: Finished difference Result 500 states and 581 transitions. [2019-10-07 13:50:04,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:50:04,216 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-10-07 13:50:04,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:04,219 INFO L225 Difference]: With dead ends: 500 [2019-10-07 13:50:04,219 INFO L226 Difference]: Without dead ends: 468 [2019-10-07 13:50:04,219 INFO L606 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 [2019-10-07 13:50:04,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2019-10-07 13:50:04,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468. [2019-10-07 13:50:04,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2019-10-07 13:50:04,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 546 transitions. [2019-10-07 13:50:04,272 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 546 transitions. Word has length 56 [2019-10-07 13:50:04,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:04,273 INFO L462 AbstractCegarLoop]: Abstraction has 468 states and 546 transitions. [2019-10-07 13:50:04,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-07 13:50:04,273 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 546 transitions. [2019-10-07 13:50:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 13:50:04,278 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:04,278 INFO L385 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] [2019-10-07 13:50:04,278 INFO L410 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1940722786, now seen corresponding path program 1 times [2019-10-07 13:50:04,279 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:04,279 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:04,280 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:04,280 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:04,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:04,437 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:04,438 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:04,438 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:50:04,439 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:50:04,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:50:04,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:50:04,440 INFO L87 Difference]: Start difference. First operand 468 states and 546 transitions. Second operand 8 states. [2019-10-07 13:50:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:04,650 INFO L93 Difference]: Finished difference Result 479 states and 556 transitions. [2019-10-07 13:50:04,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:50:04,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-10-07 13:50:04,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:04,654 INFO L225 Difference]: With dead ends: 479 [2019-10-07 13:50:04,654 INFO L226 Difference]: Without dead ends: 459 [2019-10-07 13:50:04,655 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-07 13:50:04,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2019-10-07 13:50:04,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2019-10-07 13:50:04,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2019-10-07 13:50:04,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 535 transitions. [2019-10-07 13:50:04,701 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 535 transitions. Word has length 56 [2019-10-07 13:50:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:04,702 INFO L462 AbstractCegarLoop]: Abstraction has 459 states and 535 transitions. [2019-10-07 13:50:04,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:50:04,702 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 535 transitions. [2019-10-07 13:50:04,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-10-07 13:50:04,708 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:04,709 INFO L385 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] [2019-10-07 13:50:04,709 INFO L410 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash -259612304, now seen corresponding path program 1 times [2019-10-07 13:50:04,710 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:04,710 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:04,710 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:04,711 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:04,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:04,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:04,862 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:04,862 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:04,863 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 13:50:04,864 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 13:50:04,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 13:50:04,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:50:04,865 INFO L87 Difference]: Start difference. First operand 459 states and 535 transitions. Second operand 10 states. [2019-10-07 13:50:05,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:05,480 INFO L93 Difference]: Finished difference Result 493 states and 569 transitions. [2019-10-07 13:50:05,480 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 13:50:05,481 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 66 [2019-10-07 13:50:05,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:05,484 INFO L225 Difference]: With dead ends: 493 [2019-10-07 13:50:05,484 INFO L226 Difference]: Without dead ends: 457 [2019-10-07 13:50:05,485 INFO L606 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 [2019-10-07 13:50:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-10-07 13:50:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 457. [2019-10-07 13:50:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2019-10-07 13:50:05,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 530 transitions. [2019-10-07 13:50:05,518 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 530 transitions. Word has length 66 [2019-10-07 13:50:05,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:05,518 INFO L462 AbstractCegarLoop]: Abstraction has 457 states and 530 transitions. [2019-10-07 13:50:05,518 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 13:50:05,519 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 530 transitions. [2019-10-07 13:50:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-07 13:50:05,520 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:05,520 INFO L385 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] [2019-10-07 13:50:05,520 INFO L410 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:05,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:05,521 INFO L82 PathProgramCache]: Analyzing trace with hash 157821587, now seen corresponding path program 1 times [2019-10-07 13:50:05,521 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:05,521 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:05,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:05,521 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:05,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:05,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:05,601 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:05,601 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:05,601 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:50:05,602 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:50:05,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:50:05,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:50:05,602 INFO L87 Difference]: Start difference. First operand 457 states and 530 transitions. Second operand 6 states. [2019-10-07 13:50:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:05,656 INFO L93 Difference]: Finished difference Result 462 states and 534 transitions. [2019-10-07 13:50:05,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:50:05,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-10-07 13:50:05,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:05,659 INFO L225 Difference]: With dead ends: 462 [2019-10-07 13:50:05,659 INFO L226 Difference]: Without dead ends: 410 [2019-10-07 13:50:05,659 INFO L606 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 [2019-10-07 13:50:05,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2019-10-07 13:50:05,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2019-10-07 13:50:05,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-10-07 13:50:05,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 474 transitions. [2019-10-07 13:50:05,692 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 474 transitions. Word has length 59 [2019-10-07 13:50:05,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:05,693 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 474 transitions. [2019-10-07 13:50:05,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:50:05,694 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 474 transitions. [2019-10-07 13:50:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-07 13:50:05,695 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:05,695 INFO L385 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] [2019-10-07 13:50:05,695 INFO L410 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:05,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:05,696 INFO L82 PathProgramCache]: Analyzing trace with hash -237484545, now seen corresponding path program 1 times [2019-10-07 13:50:05,696 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:05,696 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:05,696 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:05,697 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:05,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:05,895 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:05,895 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:05,895 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 13:50:05,897 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 13:50:05,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 13:50:05,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-10-07 13:50:05,898 INFO L87 Difference]: Start difference. First operand 410 states and 474 transitions. Second operand 8 states. [2019-10-07 13:50:06,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:06,491 INFO L93 Difference]: Finished difference Result 492 states and 583 transitions. [2019-10-07 13:50:06,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-07 13:50:06,492 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2019-10-07 13:50:06,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:06,495 INFO L225 Difference]: With dead ends: 492 [2019-10-07 13:50:06,495 INFO L226 Difference]: Without dead ends: 488 [2019-10-07 13:50:06,496 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:50:06,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2019-10-07 13:50:06,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 410. [2019-10-07 13:50:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-10-07 13:50:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 474 transitions. [2019-10-07 13:50:06,536 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 474 transitions. Word has length 67 [2019-10-07 13:50:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:06,537 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 474 transitions. [2019-10-07 13:50:06,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 13:50:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 474 transitions. [2019-10-07 13:50:06,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-10-07 13:50:06,538 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:06,538 INFO L385 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] [2019-10-07 13:50:06,538 INFO L410 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:06,539 INFO L82 PathProgramCache]: Analyzing trace with hash 597157261, now seen corresponding path program 1 times [2019-10-07 13:50:06,539 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:06,539 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:06,539 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:06,539 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:06,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:06,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:06,591 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:06,592 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:06,592 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:50:06,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:50:06,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:50:06,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:50:06,593 INFO L87 Difference]: Start difference. First operand 410 states and 474 transitions. Second operand 5 states. [2019-10-07 13:50:06,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:06,911 INFO L93 Difference]: Finished difference Result 708 states and 800 transitions. [2019-10-07 13:50:06,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 13:50:06,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 62 [2019-10-07 13:50:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:06,914 INFO L225 Difference]: With dead ends: 708 [2019-10-07 13:50:06,914 INFO L226 Difference]: Without dead ends: 445 [2019-10-07 13:50:06,915 INFO L606 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 [2019-10-07 13:50:06,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-10-07 13:50:06,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 425. [2019-10-07 13:50:06,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-10-07 13:50:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 483 transitions. [2019-10-07 13:50:06,952 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 483 transitions. Word has length 62 [2019-10-07 13:50:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:06,952 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 483 transitions. [2019-10-07 13:50:06,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:50:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 483 transitions. [2019-10-07 13:50:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-07 13:50:06,954 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:06,954 INFO L385 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] [2019-10-07 13:50:06,954 INFO L410 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:06,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 509313900, now seen corresponding path program 1 times [2019-10-07 13:50:06,954 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:06,955 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:06,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:06,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:06,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:07,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:07,011 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:07,011 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:07,011 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:50:07,011 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:50:07,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:50:07,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:50:07,012 INFO L87 Difference]: Start difference. First operand 425 states and 483 transitions. Second operand 5 states. [2019-10-07 13:50:07,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:07,054 INFO L93 Difference]: Finished difference Result 464 states and 521 transitions. [2019-10-07 13:50:07,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:50:07,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-07 13:50:07,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:07,057 INFO L225 Difference]: With dead ends: 464 [2019-10-07 13:50:07,057 INFO L226 Difference]: Without dead ends: 425 [2019-10-07 13:50:07,058 INFO L606 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 [2019-10-07 13:50:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2019-10-07 13:50:07,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2019-10-07 13:50:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-10-07 13:50:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 482 transitions. [2019-10-07 13:50:07,094 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 482 transitions. Word has length 65 [2019-10-07 13:50:07,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:07,095 INFO L462 AbstractCegarLoop]: Abstraction has 425 states and 482 transitions. [2019-10-07 13:50:07,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:50:07,095 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 482 transitions. [2019-10-07 13:50:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-10-07 13:50:07,097 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:07,097 INFO L385 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] [2019-10-07 13:50:07,097 INFO L410 AbstractCegarLoop]: === Iteration 47 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:07,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:07,098 INFO L82 PathProgramCache]: Analyzing trace with hash 829236696, now seen corresponding path program 1 times [2019-10-07 13:50:07,099 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:07,099 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:07,099 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:07,100 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:07,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:07,230 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:07,231 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:07,231 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 13:50:07,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 13:50:07,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 13:50:07,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:50:07,232 INFO L87 Difference]: Start difference. First operand 425 states and 482 transitions. Second operand 7 states. [2019-10-07 13:50:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:07,431 INFO L93 Difference]: Finished difference Result 442 states and 498 transitions. [2019-10-07 13:50:07,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 13:50:07,431 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 74 [2019-10-07 13:50:07,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:07,433 INFO L225 Difference]: With dead ends: 442 [2019-10-07 13:50:07,434 INFO L226 Difference]: Without dead ends: 423 [2019-10-07 13:50:07,434 INFO L606 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 [2019-10-07 13:50:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-07 13:50:07,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 384. [2019-10-07 13:50:07,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384 states. [2019-10-07 13:50:07,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 430 transitions. [2019-10-07 13:50:07,471 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 430 transitions. Word has length 74 [2019-10-07 13:50:07,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:07,471 INFO L462 AbstractCegarLoop]: Abstraction has 384 states and 430 transitions. [2019-10-07 13:50:07,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 13:50:07,472 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 430 transitions. [2019-10-07 13:50:07,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-10-07 13:50:07,474 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:07,474 INFO L385 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] [2019-10-07 13:50:07,474 INFO L410 AbstractCegarLoop]: === Iteration 48 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:07,475 INFO L82 PathProgramCache]: Analyzing trace with hash -438459579, now seen corresponding path program 1 times [2019-10-07 13:50:07,475 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:07,475 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:07,475 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:07,475 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:07,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:50:07,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:50:07,764 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:07,764 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:50:07,764 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-07 13:50:07,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-07 13:50:07,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-07 13:50:07,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-07 13:50:07,765 INFO L87 Difference]: Start difference. First operand 384 states and 430 transitions. Second operand 10 states. [2019-10-07 13:50:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:50:08,411 INFO L93 Difference]: Finished difference Result 500 states and 559 transitions. [2019-10-07 13:50:08,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-07 13:50:08,411 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2019-10-07 13:50:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:50:08,413 INFO L225 Difference]: With dead ends: 500 [2019-10-07 13:50:08,414 INFO L226 Difference]: Without dead ends: 356 [2019-10-07 13:50:08,414 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-10-07 13:50:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-10-07 13:50:08,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2019-10-07 13:50:08,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2019-10-07 13:50:08,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 391 transitions. [2019-10-07 13:50:08,444 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 391 transitions. Word has length 75 [2019-10-07 13:50:08,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:50:08,444 INFO L462 AbstractCegarLoop]: Abstraction has 352 states and 391 transitions. [2019-10-07 13:50:08,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-07 13:50:08,445 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 391 transitions. [2019-10-07 13:50:08,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-07 13:50:08,446 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:50:08,446 INFO L385 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] [2019-10-07 13:50:08,446 INFO L410 AbstractCegarLoop]: === Iteration 49 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:50:08,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:50:08,447 INFO L82 PathProgramCache]: Analyzing trace with hash 920929394, now seen corresponding path program 1 times [2019-10-07 13:50:08,447 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:50:08,447 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:50:08,447 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:08,447 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:50:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:50:08,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:50:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-07 13:50:08,561 INFO L161 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-07 13:50:08,561 INFO L451 BasicCegarLoop]: Counterexample might be feasible [2019-10-07 13:50:08,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:50:08 BoogieIcfgContainer [2019-10-07 13:50:08,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:50:08,734 INFO L168 Benchmark]: Toolchain (without parser) took 25286.09 ms. Allocated memory was 146.8 MB in the beginning and 578.8 MB in the end (delta: 432.0 MB). Free memory was 101.4 MB in the beginning and 434.5 MB in the end (delta: -333.1 MB). Peak memory consumption was 98.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,735 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.79 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 170.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,740 INFO L168 Benchmark]: Boogie Preprocessor took 99.74 ms. Allocated memory is still 205.5 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,745 INFO L168 Benchmark]: RCFGBuilder took 1978.67 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 165.5 MB in the beginning and 102.6 MB in the end (delta: 63.0 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,746 INFO L168 Benchmark]: TraceAbstraction took 22420.24 ms. Allocated memory was 235.9 MB in the beginning and 578.8 MB in the end (delta: 342.9 MB). Free memory was 102.6 MB in the beginning and 434.5 MB in the end (delta: -331.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:50:08,751 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 782.79 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 101.2 MB in the beginning and 170.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.74 ms. Allocated memory is still 205.5 MB. Free memory was 170.3 MB in the beginning and 165.5 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1978.67 ms. Allocated memory was 205.5 MB in the beginning and 235.9 MB in the end (delta: 30.4 MB). Free memory was 165.5 MB in the beginning and 102.6 MB in the end (delta: 63.0 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 22420.24 ms. Allocated memory was 235.9 MB in the beginning and 578.8 MB in the end (delta: 342.9 MB). Free memory was 102.6 MB in the beginning and 434.5 MB in the end (delta: -331.9 MB). Peak memory consumption was 11.0 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: 22.3s, OverallIterations: 49, TraceHistogramMax: 1, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 16474 SDtfs, 8525 SDslu, 44297 SDs, 0 SdLazy, 9917 SolverSat, 2175 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 402 GetRequests, 128 SyntacticMatches, 6 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 2.8s 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: 1.8s AutomataMinimizationTime, 48 MinimizatonAttempts, 894 StatesRemovedByMinimization, 28 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2326 NumberOfCodeBlocks, 2326 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 2209 ConstructedInterpolants, 0 QuantifiedInterpolants, 238520 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...