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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:04:24,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:04:24,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:04:24,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:04:24,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:04:24,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:04:24,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:04:24,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:04:24,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:04:24,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:04:24,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:04:24,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:04:24,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:04:24,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:04:24,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:04:24,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:04:24,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:04:24,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:04:24,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:04:24,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:04:24,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:04:24,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:04:24,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:04:24,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:04:24,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:04:24,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:04:24,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:04:24,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:04:24,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:04:24,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:04:24,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:04:24,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:04:24,296 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:04:24,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:04:24,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:04:24,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:04:24,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:04:24,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:04:24,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:04:24,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:04:24,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:04:24,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-16 17:04:24,317 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:04:24,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:04:24,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:04:24,318 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:04:24,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:04:24,319 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:04:24,319 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:04:24,320 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:04:24,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:04:24,320 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:04:24,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:04:24,321 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:04:24,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:04:24,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:04:24,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:04:24,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:04:24,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:04:24,322 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:04:24,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:04:24,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:04:24,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:04:24,323 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:04:24,323 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:04:24,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:04:24,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:04:24,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:04:24,324 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:04:24,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:04:24,325 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:04:24,325 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:04:24,363 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:04:24,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:04:24,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:04:24,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:04:24,391 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:04:24,392 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-09-16 17:04:24,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fec044a/2118db5851e643afb7ec9bdeed9ceed2/FLAG6b6c47336 [2019-09-16 17:04:25,053 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:04:25,054 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/floppy_simpl4.cil-1.c [2019-09-16 17:04:25,068 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fec044a/2118db5851e643afb7ec9bdeed9ceed2/FLAG6b6c47336 [2019-09-16 17:04:25,308 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35fec044a/2118db5851e643afb7ec9bdeed9ceed2 [2019-09-16 17:04:25,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:04:25,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:04:25,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:04:25,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:04:25,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:04:25,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:04:25" (1/1) ... [2019-09-16 17:04:25,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f723ae4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:25, skipping insertion in model container [2019-09-16 17:04:25,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:04:25" (1/1) ... [2019-09-16 17:04:25,338 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:04:25,418 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:04:25,991 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:04:26,005 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:04:26,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:04:26,146 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:04:26,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26 WrapperNode [2019-09-16 17:04:26,147 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:04:26,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:04:26,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:04:26,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:04:26,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (1/1) ... [2019-09-16 17:04:26,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:04:26,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:04:26,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:04:26,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:04:26,247 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (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 [2019-09-16 17:04:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:04:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2019-09-16 17:04:26,334 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2019-09-16 17:04:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2019-09-16 17:04:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2019-09-16 17:04:26,335 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2019-09-16 17:04:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:04:26,336 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2019-09-16 17:04:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2019-09-16 17:04:26,337 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2019-09-16 17:04:26,338 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2019-09-16 17:04:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2019-09-16 17:04:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2019-09-16 17:04:26,339 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2019-09-16 17:04:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2019-09-16 17:04:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2019-09-16 17:04:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2019-09-16 17:04:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2019-09-16 17:04:26,340 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2019-09-16 17:04:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2019-09-16 17:04:26,341 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2019-09-16 17:04:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2019-09-16 17:04:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2019-09-16 17:04:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2019-09-16 17:04:26,342 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2019-09-16 17:04:26,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:04:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-16 17:04:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:04:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-16 17:04:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 17:04:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2019-09-16 17:04:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2019-09-16 17:04:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2019-09-16 17:04:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2019-09-16 17:04:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2019-09-16 17:04:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2019-09-16 17:04:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2019-09-16 17:04:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2019-09-16 17:04:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2019-09-16 17:04:26,345 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2019-09-16 17:04:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2019-09-16 17:04:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2019-09-16 17:04:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2019-09-16 17:04:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2019-09-16 17:04:26,346 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2019-09-16 17:04:26,347 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:04:26,348 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2019-09-16 17:04:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:04:26,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:04:26,712 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:26,780 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:26,781 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:26,807 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:26,831 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:26,832 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:26,839 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,092 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2019-09-16 17:04:27,092 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2019-09-16 17:04:27,094 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,274 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2019-09-16 17:04:27,275 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2019-09-16 17:04:27,301 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,342 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2019-09-16 17:04:27,342 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2019-09-16 17:04:27,485 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,498 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,498 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,499 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,512 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,513 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,513 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,529 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,529 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,581 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,619 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2019-09-16 17:04:27,619 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2019-09-16 17:04:27,623 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,779 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2019-09-16 17:04:27,780 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2019-09-16 17:04:27,842 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,849 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,849 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,850 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,869 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,870 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,870 WARN L730 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-09-16 17:04:27,885 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2019-09-16 17:04:27,886 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2019-09-16 17:04:27,898 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:04:27,899 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 17:04:27,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:04:27 BoogieIcfgContainer [2019-09-16 17:04:27,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:04:27,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:04:27,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:04:27,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:04:27,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:04:25" (1/3) ... [2019-09-16 17:04:27,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c41d7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:04:27, skipping insertion in model container [2019-09-16 17:04:27,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:04:26" (2/3) ... [2019-09-16 17:04:27,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c41d7c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:04:27, skipping insertion in model container [2019-09-16 17:04:27,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:04:27" (3/3) ... [2019-09-16 17:04:27,910 INFO L109 eAbstractionObserver]: Analyzing ICFG floppy_simpl4.cil-1.c [2019-09-16 17:04:27,922 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:04:27,934 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:04:27,952 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:04:27,990 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:04:27,990 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:04:27,990 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:04:27,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:04:27,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:04:27,992 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:04:27,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:04:27,993 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:04:28,024 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states. [2019-09-16 17:04:28,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-16 17:04:28,035 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:28,036 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:28,038 INFO L418 AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:28,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1980583479, now seen corresponding path program 1 times [2019-09-16 17:04:28,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:28,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:28,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:28,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:28,098 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:28,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:28,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:28,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:28,277 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:28,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:28,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:28,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:28,300 INFO L87 Difference]: Start difference. First operand 390 states. Second operand 3 states. [2019-09-16 17:04:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:28,401 INFO L93 Difference]: Finished difference Result 389 states and 540 transitions. [2019-09-16 17:04:28,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:28,404 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-09-16 17:04:28,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:28,434 INFO L225 Difference]: With dead ends: 389 [2019-09-16 17:04:28,434 INFO L226 Difference]: Without dead ends: 382 [2019-09-16 17:04:28,438 INFO L636 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 [2019-09-16 17:04:28,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2019-09-16 17:04:28,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2019-09-16 17:04:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2019-09-16 17:04:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 526 transitions. [2019-09-16 17:04:28,537 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 526 transitions. Word has length 20 [2019-09-16 17:04:28,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:28,537 INFO L475 AbstractCegarLoop]: Abstraction has 382 states and 526 transitions. [2019-09-16 17:04:28,538 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:28,538 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 526 transitions. [2019-09-16 17:04:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-16 17:04:28,540 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:28,540 INFO L407 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] [2019-09-16 17:04:28,540 INFO L418 AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:28,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1877533292, now seen corresponding path program 1 times [2019-09-16 17:04:28,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:28,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:28,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:28,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:28,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:28,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:28,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:28,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:28,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:28,737 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:28,739 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:28,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:28,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:28,741 INFO L87 Difference]: Start difference. First operand 382 states and 526 transitions. Second operand 3 states. [2019-09-16 17:04:29,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:29,017 INFO L93 Difference]: Finished difference Result 541 states and 734 transitions. [2019-09-16 17:04:29,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:29,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-09-16 17:04:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:29,030 INFO L225 Difference]: With dead ends: 541 [2019-09-16 17:04:29,030 INFO L226 Difference]: Without dead ends: 540 [2019-09-16 17:04:29,031 INFO L636 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 [2019-09-16 17:04:29,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2019-09-16 17:04:29,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 521. [2019-09-16 17:04:29,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 521 states. [2019-09-16 17:04:29,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 709 transitions. [2019-09-16 17:04:29,106 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 709 transitions. Word has length 25 [2019-09-16 17:04:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:29,107 INFO L475 AbstractCegarLoop]: Abstraction has 521 states and 709 transitions. [2019-09-16 17:04:29,107 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:29,107 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 709 transitions. [2019-09-16 17:04:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-16 17:04:29,110 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:29,110 INFO L407 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] [2019-09-16 17:04:29,110 INFO L418 AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:29,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:29,111 INFO L82 PathProgramCache]: Analyzing trace with hash -2127650726, now seen corresponding path program 1 times [2019-09-16 17:04:29,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:29,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:29,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,115 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:29,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:29,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:29,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:29,271 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:29,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:29,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:29,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:29,273 INFO L87 Difference]: Start difference. First operand 521 states and 709 transitions. Second operand 3 states. [2019-09-16 17:04:29,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:29,325 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2019-09-16 17:04:29,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:29,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-09-16 17:04:29,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:29,331 INFO L225 Difference]: With dead ends: 625 [2019-09-16 17:04:29,331 INFO L226 Difference]: Without dead ends: 625 [2019-09-16 17:04:29,331 INFO L636 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 [2019-09-16 17:04:29,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-09-16 17:04:29,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 585. [2019-09-16 17:04:29,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-09-16 17:04:29,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 792 transitions. [2019-09-16 17:04:29,395 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 792 transitions. Word has length 31 [2019-09-16 17:04:29,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:29,395 INFO L475 AbstractCegarLoop]: Abstraction has 585 states and 792 transitions. [2019-09-16 17:04:29,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:29,396 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 792 transitions. [2019-09-16 17:04:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-09-16 17:04:29,404 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:29,404 INFO L407 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] [2019-09-16 17:04:29,404 INFO L418 AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:29,405 INFO L82 PathProgramCache]: Analyzing trace with hash -984761052, now seen corresponding path program 1 times [2019-09-16 17:04:29,405 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:29,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:29,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,409 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:29,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:29,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:29,538 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:29,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:29,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:29,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:29,539 INFO L87 Difference]: Start difference. First operand 585 states and 792 transitions. Second operand 3 states. [2019-09-16 17:04:29,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:29,576 INFO L93 Difference]: Finished difference Result 796 states and 1075 transitions. [2019-09-16 17:04:29,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:29,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-09-16 17:04:29,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:29,582 INFO L225 Difference]: With dead ends: 796 [2019-09-16 17:04:29,582 INFO L226 Difference]: Without dead ends: 796 [2019-09-16 17:04:29,583 INFO L636 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 [2019-09-16 17:04:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2019-09-16 17:04:29,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 767. [2019-09-16 17:04:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2019-09-16 17:04:29,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1042 transitions. [2019-09-16 17:04:29,641 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1042 transitions. Word has length 33 [2019-09-16 17:04:29,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:29,642 INFO L475 AbstractCegarLoop]: Abstraction has 767 states and 1042 transitions. [2019-09-16 17:04:29,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:29,643 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1042 transitions. [2019-09-16 17:04:29,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-09-16 17:04:29,646 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:29,647 INFO L407 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] [2019-09-16 17:04:29,647 INFO L418 AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:29,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1494073565, now seen corresponding path program 1 times [2019-09-16 17:04:29,647 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:29,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:29,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,651 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:29,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:29,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:29,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:29,704 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:29,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:29,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:29,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:29,706 INFO L87 Difference]: Start difference. First operand 767 states and 1042 transitions. Second operand 3 states. [2019-09-16 17:04:29,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:29,798 INFO L93 Difference]: Finished difference Result 806 states and 1089 transitions. [2019-09-16 17:04:29,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:29,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2019-09-16 17:04:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:29,804 INFO L225 Difference]: With dead ends: 806 [2019-09-16 17:04:29,804 INFO L226 Difference]: Without dead ends: 806 [2019-09-16 17:04:29,805 INFO L636 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 [2019-09-16 17:04:29,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2019-09-16 17:04:29,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 802. [2019-09-16 17:04:29,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2019-09-16 17:04:29,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1086 transitions. [2019-09-16 17:04:29,832 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1086 transitions. Word has length 39 [2019-09-16 17:04:29,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:29,832 INFO L475 AbstractCegarLoop]: Abstraction has 802 states and 1086 transitions. [2019-09-16 17:04:29,832 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1086 transitions. [2019-09-16 17:04:29,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-09-16 17:04:29,834 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:29,834 INFO L407 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] [2019-09-16 17:04:29,834 INFO L418 AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:29,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1679216250, now seen corresponding path program 1 times [2019-09-16 17:04:29,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:29,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:29,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:29,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:29,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:29,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:29,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:29,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:29,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:29,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:29,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:29,911 INFO L87 Difference]: Start difference. First operand 802 states and 1086 transitions. Second operand 3 states. [2019-09-16 17:04:29,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:29,997 INFO L93 Difference]: Finished difference Result 814 states and 1102 transitions. [2019-09-16 17:04:29,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:29,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-09-16 17:04:29,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:30,003 INFO L225 Difference]: With dead ends: 814 [2019-09-16 17:04:30,003 INFO L226 Difference]: Without dead ends: 814 [2019-09-16 17:04:30,004 INFO L636 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 [2019-09-16 17:04:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2019-09-16 17:04:30,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 813. [2019-09-16 17:04:30,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 813 states. [2019-09-16 17:04:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1100 transitions. [2019-09-16 17:04:30,028 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1100 transitions. Word has length 38 [2019-09-16 17:04:30,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:30,029 INFO L475 AbstractCegarLoop]: Abstraction has 813 states and 1100 transitions. [2019-09-16 17:04:30,029 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:30,029 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1100 transitions. [2019-09-16 17:04:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-16 17:04:30,032 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:30,032 INFO L407 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] [2019-09-16 17:04:30,033 INFO L418 AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:30,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:30,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1380961955, now seen corresponding path program 1 times [2019-09-16 17:04:30,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:30,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:30,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,038 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:30,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:30,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:30,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:30,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:30,097 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:30,097 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:30,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:30,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:30,098 INFO L87 Difference]: Start difference. First operand 813 states and 1100 transitions. Second operand 5 states. [2019-09-16 17:04:30,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:30,152 INFO L93 Difference]: Finished difference Result 823 states and 1111 transitions. [2019-09-16 17:04:30,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:30,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-09-16 17:04:30,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:30,158 INFO L225 Difference]: With dead ends: 823 [2019-09-16 17:04:30,158 INFO L226 Difference]: Without dead ends: 811 [2019-09-16 17:04:30,159 INFO L636 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 [2019-09-16 17:04:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2019-09-16 17:04:30,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 811. [2019-09-16 17:04:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-09-16 17:04:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 1096 transitions. [2019-09-16 17:04:30,190 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 1096 transitions. Word has length 40 [2019-09-16 17:04:30,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:30,190 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 1096 transitions. [2019-09-16 17:04:30,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:30,191 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 1096 transitions. [2019-09-16 17:04:30,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-09-16 17:04:30,193 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:30,193 INFO L407 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] [2019-09-16 17:04:30,193 INFO L418 AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:30,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:30,194 INFO L82 PathProgramCache]: Analyzing trace with hash 310268416, now seen corresponding path program 1 times [2019-09-16 17:04:30,194 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:30,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:30,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:30,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:30,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:30,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:30,291 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:30,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:30,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:30,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:30,294 INFO L87 Difference]: Start difference. First operand 811 states and 1096 transitions. Second operand 5 states. [2019-09-16 17:04:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:30,346 INFO L93 Difference]: Finished difference Result 821 states and 1107 transitions. [2019-09-16 17:04:30,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:30,347 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2019-09-16 17:04:30,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:30,352 INFO L225 Difference]: With dead ends: 821 [2019-09-16 17:04:30,352 INFO L226 Difference]: Without dead ends: 804 [2019-09-16 17:04:30,353 INFO L636 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 [2019-09-16 17:04:30,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-09-16 17:04:30,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2019-09-16 17:04:30,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-09-16 17:04:30,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1087 transitions. [2019-09-16 17:04:30,381 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1087 transitions. Word has length 39 [2019-09-16 17:04:30,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:30,381 INFO L475 AbstractCegarLoop]: Abstraction has 804 states and 1087 transitions. [2019-09-16 17:04:30,382 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:30,382 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1087 transitions. [2019-09-16 17:04:30,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-16 17:04:30,383 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:30,384 INFO L407 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] [2019-09-16 17:04:30,384 INFO L418 AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:30,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:30,384 INFO L82 PathProgramCache]: Analyzing trace with hash -1241145468, now seen corresponding path program 1 times [2019-09-16 17:04:30,385 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:30,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:30,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,388 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:30,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:30,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:30,459 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:30,459 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:30,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:30,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:30,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:30,460 INFO L87 Difference]: Start difference. First operand 804 states and 1087 transitions. Second operand 3 states. [2019-09-16 17:04:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:30,621 INFO L93 Difference]: Finished difference Result 1181 states and 1608 transitions. [2019-09-16 17:04:30,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:30,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-09-16 17:04:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:30,630 INFO L225 Difference]: With dead ends: 1181 [2019-09-16 17:04:30,631 INFO L226 Difference]: Without dead ends: 1181 [2019-09-16 17:04:30,633 INFO L636 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 [2019-09-16 17:04:30,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2019-09-16 17:04:30,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 927. [2019-09-16 17:04:30,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2019-09-16 17:04:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1256 transitions. [2019-09-16 17:04:30,682 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1256 transitions. Word has length 44 [2019-09-16 17:04:30,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:30,683 INFO L475 AbstractCegarLoop]: Abstraction has 927 states and 1256 transitions. [2019-09-16 17:04:30,683 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:30,683 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1256 transitions. [2019-09-16 17:04:30,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-16 17:04:30,685 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:30,685 INFO L407 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] [2019-09-16 17:04:30,685 INFO L418 AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:30,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1407580827, now seen corresponding path program 1 times [2019-09-16 17:04:30,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:30,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:30,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:30,690 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:30,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:30,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:30,793 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:30,793 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:30,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:30,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:30,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:30,794 INFO L87 Difference]: Start difference. First operand 927 states and 1256 transitions. Second operand 8 states. [2019-09-16 17:04:31,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:31,538 INFO L93 Difference]: Finished difference Result 945 states and 1272 transitions. [2019-09-16 17:04:31,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:31,539 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 43 [2019-09-16 17:04:31,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:31,545 INFO L225 Difference]: With dead ends: 945 [2019-09-16 17:04:31,545 INFO L226 Difference]: Without dead ends: 945 [2019-09-16 17:04:31,546 INFO L636 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 [2019-09-16 17:04:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2019-09-16 17:04:31,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 927. [2019-09-16 17:04:31,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 927 states. [2019-09-16 17:04:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1254 transitions. [2019-09-16 17:04:31,573 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1254 transitions. Word has length 43 [2019-09-16 17:04:31,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:31,573 INFO L475 AbstractCegarLoop]: Abstraction has 927 states and 1254 transitions. [2019-09-16 17:04:31,574 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:31,574 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1254 transitions. [2019-09-16 17:04:31,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-16 17:04:31,575 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:31,575 INFO L407 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] [2019-09-16 17:04:31,576 INFO L418 AbstractCegarLoop]: === Iteration 11 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:31,576 INFO L82 PathProgramCache]: Analyzing trace with hash -319659871, now seen corresponding path program 1 times [2019-09-16 17:04:31,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:31,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:31,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:31,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:31,579 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:31,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:31,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:04:31,626 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:31,626 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:04:31,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:04:31,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:04:31,627 INFO L87 Difference]: Start difference. First operand 927 states and 1254 transitions. Second operand 4 states. [2019-09-16 17:04:31,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:31,692 INFO L93 Difference]: Finished difference Result 933 states and 1261 transitions. [2019-09-16 17:04:31,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:04:31,693 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2019-09-16 17:04:31,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:31,699 INFO L225 Difference]: With dead ends: 933 [2019-09-16 17:04:31,699 INFO L226 Difference]: Without dead ends: 933 [2019-09-16 17:04:31,699 INFO L636 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 [2019-09-16 17:04:31,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2019-09-16 17:04:31,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 929. [2019-09-16 17:04:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2019-09-16 17:04:31,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1256 transitions. [2019-09-16 17:04:31,727 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1256 transitions. Word has length 42 [2019-09-16 17:04:31,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:31,728 INFO L475 AbstractCegarLoop]: Abstraction has 929 states and 1256 transitions. [2019-09-16 17:04:31,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:04:31,728 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1256 transitions. [2019-09-16 17:04:31,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-16 17:04:31,730 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:31,730 INFO L407 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] [2019-09-16 17:04:31,730 INFO L418 AbstractCegarLoop]: === Iteration 12 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:31,730 INFO L82 PathProgramCache]: Analyzing trace with hash -58863371, now seen corresponding path program 1 times [2019-09-16 17:04:31,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:31,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:31,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:31,733 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:31,733 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:31,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:31,912 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:31,912 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:31,913 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:31,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:31,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:31,914 INFO L87 Difference]: Start difference. First operand 929 states and 1256 transitions. Second operand 8 states. [2019-09-16 17:04:32,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:32,927 INFO L93 Difference]: Finished difference Result 1115 states and 1500 transitions. [2019-09-16 17:04:32,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:04:32,928 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 45 [2019-09-16 17:04:32,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:32,934 INFO L225 Difference]: With dead ends: 1115 [2019-09-16 17:04:32,935 INFO L226 Difference]: Without dead ends: 1115 [2019-09-16 17:04:32,935 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:04:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2019-09-16 17:04:32,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 920. [2019-09-16 17:04:32,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2019-09-16 17:04:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1235 transitions. [2019-09-16 17:04:32,977 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1235 transitions. Word has length 45 [2019-09-16 17:04:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:32,978 INFO L475 AbstractCegarLoop]: Abstraction has 920 states and 1235 transitions. [2019-09-16 17:04:32,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1235 transitions. [2019-09-16 17:04:32,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-16 17:04:32,980 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:32,980 INFO L407 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] [2019-09-16 17:04:32,980 INFO L418 AbstractCegarLoop]: === Iteration 13 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:32,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:32,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1574584051, now seen corresponding path program 1 times [2019-09-16 17:04:32,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:32,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:32,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:32,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:32,984 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:33,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:33,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:33,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:33,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:33,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:33,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:33,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:33,084 INFO L87 Difference]: Start difference. First operand 920 states and 1235 transitions. Second operand 8 states. [2019-09-16 17:04:34,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,010 INFO L93 Difference]: Finished difference Result 938 states and 1250 transitions. [2019-09-16 17:04:34,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:34,011 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2019-09-16 17:04:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,015 INFO L225 Difference]: With dead ends: 938 [2019-09-16 17:04:34,016 INFO L226 Difference]: Without dead ends: 938 [2019-09-16 17:04:34,016 INFO L636 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 [2019-09-16 17:04:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2019-09-16 17:04:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 920. [2019-09-16 17:04:34,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2019-09-16 17:04:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1233 transitions. [2019-09-16 17:04:34,047 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1233 transitions. Word has length 44 [2019-09-16 17:04:34,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,048 INFO L475 AbstractCegarLoop]: Abstraction has 920 states and 1233 transitions. [2019-09-16 17:04:34,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:34,048 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1233 transitions. [2019-09-16 17:04:34,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-16 17:04:34,051 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,051 INFO L407 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] [2019-09-16 17:04:34,051 INFO L418 AbstractCegarLoop]: === Iteration 14 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,052 INFO L82 PathProgramCache]: Analyzing trace with hash -209494515, now seen corresponding path program 1 times [2019-09-16 17:04:34,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,055 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:34,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:34,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:04:34,113 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:34,113 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:04:34,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:04:34,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:04:34,114 INFO L87 Difference]: Start difference. First operand 920 states and 1233 transitions. Second operand 4 states. [2019-09-16 17:04:34,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,177 INFO L93 Difference]: Finished difference Result 926 states and 1240 transitions. [2019-09-16 17:04:34,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:04:34,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2019-09-16 17:04:34,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,185 INFO L225 Difference]: With dead ends: 926 [2019-09-16 17:04:34,185 INFO L226 Difference]: Without dead ends: 926 [2019-09-16 17:04:34,185 INFO L636 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 [2019-09-16 17:04:34,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2019-09-16 17:04:34,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 920. [2019-09-16 17:04:34,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2019-09-16 17:04:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1233 transitions. [2019-09-16 17:04:34,217 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1233 transitions. Word has length 43 [2019-09-16 17:04:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,218 INFO L475 AbstractCegarLoop]: Abstraction has 920 states and 1233 transitions. [2019-09-16 17:04:34,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:04:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1233 transitions. [2019-09-16 17:04:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-16 17:04:34,220 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,220 INFO L407 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] [2019-09-16 17:04:34,221 INFO L418 AbstractCegarLoop]: === Iteration 15 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1512549362, now seen corresponding path program 1 times [2019-09-16 17:04:34,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:34,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:34,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:34,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:34,295 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:34,295 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:34,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:34,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:34,296 INFO L87 Difference]: Start difference. First operand 920 states and 1233 transitions. Second operand 5 states. [2019-09-16 17:04:34,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,342 INFO L93 Difference]: Finished difference Result 933 states and 1245 transitions. [2019-09-16 17:04:34,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:34,343 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-16 17:04:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,350 INFO L225 Difference]: With dead ends: 933 [2019-09-16 17:04:34,350 INFO L226 Difference]: Without dead ends: 918 [2019-09-16 17:04:34,351 INFO L636 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 [2019-09-16 17:04:34,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2019-09-16 17:04:34,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 918. [2019-09-16 17:04:34,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 918 states. [2019-09-16 17:04:34,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1229 transitions. [2019-09-16 17:04:34,380 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1229 transitions. Word has length 45 [2019-09-16 17:04:34,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,381 INFO L475 AbstractCegarLoop]: Abstraction has 918 states and 1229 transitions. [2019-09-16 17:04:34,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:34,381 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1229 transitions. [2019-09-16 17:04:34,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:04:34,382 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,383 INFO L407 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] [2019-09-16 17:04:34,383 INFO L418 AbstractCegarLoop]: === Iteration 16 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2056203452, now seen corresponding path program 1 times [2019-09-16 17:04:34,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,387 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:34,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:34,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:34,448 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:34,448 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:34,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:34,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:34,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:34,453 INFO L87 Difference]: Start difference. First operand 918 states and 1229 transitions. Second operand 3 states. [2019-09-16 17:04:34,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,487 INFO L93 Difference]: Finished difference Result 921 states and 1224 transitions. [2019-09-16 17:04:34,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:34,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-16 17:04:34,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,493 INFO L225 Difference]: With dead ends: 921 [2019-09-16 17:04:34,494 INFO L226 Difference]: Without dead ends: 900 [2019-09-16 17:04:34,494 INFO L636 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 [2019-09-16 17:04:34,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2019-09-16 17:04:34,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 896. [2019-09-16 17:04:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2019-09-16 17:04:34,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1197 transitions. [2019-09-16 17:04:34,526 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1197 transitions. Word has length 46 [2019-09-16 17:04:34,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,527 INFO L475 AbstractCegarLoop]: Abstraction has 896 states and 1197 transitions. [2019-09-16 17:04:34,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1197 transitions. [2019-09-16 17:04:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:04:34,529 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,529 INFO L407 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] [2019-09-16 17:04:34,529 INFO L418 AbstractCegarLoop]: === Iteration 17 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1390121879, now seen corresponding path program 1 times [2019-09-16 17:04:34,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:34,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:34,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:34,601 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:34,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:34,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:34,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:34,602 INFO L87 Difference]: Start difference. First operand 896 states and 1197 transitions. Second operand 5 states. [2019-09-16 17:04:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,631 INFO L93 Difference]: Finished difference Result 909 states and 1209 transitions. [2019-09-16 17:04:34,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:34,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-16 17:04:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,638 INFO L225 Difference]: With dead ends: 909 [2019-09-16 17:04:34,638 INFO L226 Difference]: Without dead ends: 894 [2019-09-16 17:04:34,639 INFO L636 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 [2019-09-16 17:04:34,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2019-09-16 17:04:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2019-09-16 17:04:34,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2019-09-16 17:04:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1193 transitions. [2019-09-16 17:04:34,661 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1193 transitions. Word has length 47 [2019-09-16 17:04:34,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,662 INFO L475 AbstractCegarLoop]: Abstraction has 894 states and 1193 transitions. [2019-09-16 17:04:34,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:34,662 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1193 transitions. [2019-09-16 17:04:34,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:04:34,663 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,664 INFO L407 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] [2019-09-16 17:04:34,664 INFO L418 AbstractCegarLoop]: === Iteration 18 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1483722839, now seen corresponding path program 1 times [2019-09-16 17:04:34,664 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,668 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:34,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:34,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:04:34,720 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:34,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:04:34,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:04:34,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:04:34,721 INFO L87 Difference]: Start difference. First operand 894 states and 1193 transitions. Second operand 4 states. [2019-09-16 17:04:34,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:34,913 INFO L93 Difference]: Finished difference Result 645 states and 833 transitions. [2019-09-16 17:04:34,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:04:34,914 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2019-09-16 17:04:34,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:34,918 INFO L225 Difference]: With dead ends: 645 [2019-09-16 17:04:34,918 INFO L226 Difference]: Without dead ends: 645 [2019-09-16 17:04:34,919 INFO L636 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 [2019-09-16 17:04:34,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2019-09-16 17:04:34,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 608. [2019-09-16 17:04:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-09-16 17:04:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 786 transitions. [2019-09-16 17:04:34,939 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 786 transitions. Word has length 52 [2019-09-16 17:04:34,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:34,939 INFO L475 AbstractCegarLoop]: Abstraction has 608 states and 786 transitions. [2019-09-16 17:04:34,940 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:04:34,940 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 786 transitions. [2019-09-16 17:04:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-16 17:04:34,941 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:34,941 INFO L407 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] [2019-09-16 17:04:34,942 INFO L418 AbstractCegarLoop]: === Iteration 19 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:34,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:34,942 INFO L82 PathProgramCache]: Analyzing trace with hash -489978371, now seen corresponding path program 1 times [2019-09-16 17:04:34,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:34,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:34,945 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:35,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:35,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:35,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:35,036 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:35,036 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:35,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:35,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:35,037 INFO L87 Difference]: Start difference. First operand 608 states and 786 transitions. Second operand 6 states. [2019-09-16 17:04:35,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:35,131 INFO L93 Difference]: Finished difference Result 625 states and 803 transitions. [2019-09-16 17:04:35,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:35,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2019-09-16 17:04:35,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:35,135 INFO L225 Difference]: With dead ends: 625 [2019-09-16 17:04:35,136 INFO L226 Difference]: Without dead ends: 608 [2019-09-16 17:04:35,137 INFO L636 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 [2019-09-16 17:04:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2019-09-16 17:04:35,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 608. [2019-09-16 17:04:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2019-09-16 17:04:35,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 774 transitions. [2019-09-16 17:04:35,151 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 774 transitions. Word has length 50 [2019-09-16 17:04:35,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:35,151 INFO L475 AbstractCegarLoop]: Abstraction has 608 states and 774 transitions. [2019-09-16 17:04:35,152 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 774 transitions. [2019-09-16 17:04:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-16 17:04:35,159 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:35,160 INFO L407 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] [2019-09-16 17:04:35,160 INFO L418 AbstractCegarLoop]: === Iteration 20 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash -192140927, now seen corresponding path program 1 times [2019-09-16 17:04:35,161 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:35,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:35,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:35,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:35,210 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:35,211 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:35,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:35,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:35,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:35,212 INFO L87 Difference]: Start difference. First operand 608 states and 774 transitions. Second operand 3 states. [2019-09-16 17:04:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:35,324 INFO L93 Difference]: Finished difference Result 804 states and 1036 transitions. [2019-09-16 17:04:35,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:35,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2019-09-16 17:04:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:35,329 INFO L225 Difference]: With dead ends: 804 [2019-09-16 17:04:35,330 INFO L226 Difference]: Without dead ends: 804 [2019-09-16 17:04:35,330 INFO L636 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 [2019-09-16 17:04:35,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-09-16 17:04:35,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 671. [2019-09-16 17:04:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2019-09-16 17:04:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 852 transitions. [2019-09-16 17:04:35,349 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 852 transitions. Word has length 50 [2019-09-16 17:04:35,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:35,349 INFO L475 AbstractCegarLoop]: Abstraction has 671 states and 852 transitions. [2019-09-16 17:04:35,349 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:35,349 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 852 transitions. [2019-09-16 17:04:35,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:04:35,351 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:35,351 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:35,351 INFO L418 AbstractCegarLoop]: === Iteration 21 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:35,352 INFO L82 PathProgramCache]: Analyzing trace with hash -2014423191, now seen corresponding path program 1 times [2019-09-16 17:04:35,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:35,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:35,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,355 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:35,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:35,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:04:35,442 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:35,443 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:04:35,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:04:35,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:04:35,444 INFO L87 Difference]: Start difference. First operand 671 states and 852 transitions. Second operand 7 states. [2019-09-16 17:04:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:35,536 INFO L93 Difference]: Finished difference Result 699 states and 879 transitions. [2019-09-16 17:04:35,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:35,536 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-16 17:04:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:35,540 INFO L225 Difference]: With dead ends: 699 [2019-09-16 17:04:35,540 INFO L226 Difference]: Without dead ends: 672 [2019-09-16 17:04:35,540 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:04:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-09-16 17:04:35,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 659. [2019-09-16 17:04:35,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-09-16 17:04:35,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 833 transitions. [2019-09-16 17:04:35,556 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 833 transitions. Word has length 51 [2019-09-16 17:04:35,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:35,557 INFO L475 AbstractCegarLoop]: Abstraction has 659 states and 833 transitions. [2019-09-16 17:04:35,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:04:35,557 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 833 transitions. [2019-09-16 17:04:35,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:04:35,558 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:35,559 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:35,559 INFO L418 AbstractCegarLoop]: === Iteration 22 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:35,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:35,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1090292134, now seen corresponding path program 1 times [2019-09-16 17:04:35,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:35,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:35,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,563 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:35,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:35,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:35,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:35,639 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:35,639 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:35,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:35,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:35,640 INFO L87 Difference]: Start difference. First operand 659 states and 833 transitions. Second operand 6 states. [2019-09-16 17:04:35,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:35,681 INFO L93 Difference]: Finished difference Result 664 states and 838 transitions. [2019-09-16 17:04:35,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:35,682 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2019-09-16 17:04:35,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:35,685 INFO L225 Difference]: With dead ends: 664 [2019-09-16 17:04:35,686 INFO L226 Difference]: Without dead ends: 661 [2019-09-16 17:04:35,686 INFO L636 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 [2019-09-16 17:04:35,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-09-16 17:04:35,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2019-09-16 17:04:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-09-16 17:04:35,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 835 transitions. [2019-09-16 17:04:35,701 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 835 transitions. Word has length 51 [2019-09-16 17:04:35,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:35,701 INFO L475 AbstractCegarLoop]: Abstraction has 661 states and 835 transitions. [2019-09-16 17:04:35,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:35,701 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 835 transitions. [2019-09-16 17:04:35,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:04:35,703 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:35,703 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:35,703 INFO L418 AbstractCegarLoop]: === Iteration 23 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:35,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:35,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1208522397, now seen corresponding path program 1 times [2019-09-16 17:04:35,704 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:35,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:35,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,707 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:35,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:35,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:35,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:35,775 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:35,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:35,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:35,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:35,776 INFO L87 Difference]: Start difference. First operand 661 states and 835 transitions. Second operand 8 states. [2019-09-16 17:04:35,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:35,936 INFO L93 Difference]: Finished difference Result 688 states and 866 transitions. [2019-09-16 17:04:35,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:35,937 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-09-16 17:04:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:35,940 INFO L225 Difference]: With dead ends: 688 [2019-09-16 17:04:35,941 INFO L226 Difference]: Without dead ends: 687 [2019-09-16 17:04:35,941 INFO L636 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 [2019-09-16 17:04:35,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2019-09-16 17:04:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 679. [2019-09-16 17:04:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2019-09-16 17:04:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 856 transitions. [2019-09-16 17:04:35,958 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 856 transitions. Word has length 51 [2019-09-16 17:04:35,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:35,958 INFO L475 AbstractCegarLoop]: Abstraction has 679 states and 856 transitions. [2019-09-16 17:04:35,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 856 transitions. [2019-09-16 17:04:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 17:04:35,960 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:35,960 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:35,961 INFO L418 AbstractCegarLoop]: === Iteration 24 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:35,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:35,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1208799227, now seen corresponding path program 1 times [2019-09-16 17:04:35,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:35,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:35,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:35,964 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:36,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:36,043 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:36,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:36,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:36,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:36,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:36,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:36,045 INFO L87 Difference]: Start difference. First operand 679 states and 856 transitions. Second operand 8 states. [2019-09-16 17:04:36,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:36,126 INFO L93 Difference]: Finished difference Result 736 states and 942 transitions. [2019-09-16 17:04:36,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:36,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-09-16 17:04:36,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:36,131 INFO L225 Difference]: With dead ends: 736 [2019-09-16 17:04:36,131 INFO L226 Difference]: Without dead ends: 722 [2019-09-16 17:04:36,131 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:04:36,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2019-09-16 17:04:36,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 705. [2019-09-16 17:04:36,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 705 states. [2019-09-16 17:04:36,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 900 transitions. [2019-09-16 17:04:36,149 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 900 transitions. Word has length 51 [2019-09-16 17:04:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:36,150 INFO L475 AbstractCegarLoop]: Abstraction has 705 states and 900 transitions. [2019-09-16 17:04:36,150 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:36,150 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 900 transitions. [2019-09-16 17:04:36,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:04:36,152 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:36,152 INFO L407 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] [2019-09-16 17:04:36,152 INFO L418 AbstractCegarLoop]: === Iteration 25 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:36,153 INFO L82 PathProgramCache]: Analyzing trace with hash 987376175, now seen corresponding path program 1 times [2019-09-16 17:04:36,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:36,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:36,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:36,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:36,155 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:36,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:36,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-16 17:04:36,398 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:36,399 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-16 17:04:36,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-16 17:04:36,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-09-16 17:04:36,400 INFO L87 Difference]: Start difference. First operand 705 states and 900 transitions. Second operand 15 states. [2019-09-16 17:04:40,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:40,133 INFO L93 Difference]: Finished difference Result 865 states and 1122 transitions. [2019-09-16 17:04:40,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-16 17:04:40,134 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 52 [2019-09-16 17:04:40,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:40,138 INFO L225 Difference]: With dead ends: 865 [2019-09-16 17:04:40,139 INFO L226 Difference]: Without dead ends: 851 [2019-09-16 17:04:40,139 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2019-09-16 17:04:40,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 851 states. [2019-09-16 17:04:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 851 to 716. [2019-09-16 17:04:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2019-09-16 17:04:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 915 transitions. [2019-09-16 17:04:40,159 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 915 transitions. Word has length 52 [2019-09-16 17:04:40,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:40,159 INFO L475 AbstractCegarLoop]: Abstraction has 716 states and 915 transitions. [2019-09-16 17:04:40,159 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-16 17:04:40,159 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 915 transitions. [2019-09-16 17:04:40,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:04:40,161 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:40,161 INFO L407 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] [2019-09-16 17:04:40,161 INFO L418 AbstractCegarLoop]: === Iteration 26 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:40,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1519216017, now seen corresponding path program 1 times [2019-09-16 17:04:40,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:40,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:40,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:40,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:40,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:40,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:40,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:40,278 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:40,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:04:40,279 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:40,280 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:04:40,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:04:40,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:04:40,280 INFO L87 Difference]: Start difference. First operand 716 states and 915 transitions. Second operand 10 states. [2019-09-16 17:04:42,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:42,731 INFO L93 Difference]: Finished difference Result 917 states and 1193 transitions. [2019-09-16 17:04:42,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-16 17:04:42,732 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 52 [2019-09-16 17:04:42,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:42,738 INFO L225 Difference]: With dead ends: 917 [2019-09-16 17:04:42,738 INFO L226 Difference]: Without dead ends: 905 [2019-09-16 17:04:42,738 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:04:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2019-09-16 17:04:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 730. [2019-09-16 17:04:42,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2019-09-16 17:04:42,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 928 transitions. [2019-09-16 17:04:42,759 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 928 transitions. Word has length 52 [2019-09-16 17:04:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:42,759 INFO L475 AbstractCegarLoop]: Abstraction has 730 states and 928 transitions. [2019-09-16 17:04:42,760 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:04:42,760 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 928 transitions. [2019-09-16 17:04:42,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:04:42,761 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:42,762 INFO L407 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] [2019-09-16 17:04:42,762 INFO L418 AbstractCegarLoop]: === Iteration 27 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:42,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:42,762 INFO L82 PathProgramCache]: Analyzing trace with hash -581698746, now seen corresponding path program 1 times [2019-09-16 17:04:42,762 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:42,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:42,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:42,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:42,765 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:42,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:42,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:42,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:42,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:42,814 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:42,814 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:42,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:42,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:42,815 INFO L87 Difference]: Start difference. First operand 730 states and 928 transitions. Second operand 3 states. [2019-09-16 17:04:42,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:42,909 INFO L93 Difference]: Finished difference Result 953 states and 1225 transitions. [2019-09-16 17:04:42,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:42,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-16 17:04:42,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:42,914 INFO L225 Difference]: With dead ends: 953 [2019-09-16 17:04:42,915 INFO L226 Difference]: Without dead ends: 944 [2019-09-16 17:04:42,915 INFO L636 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 [2019-09-16 17:04:42,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2019-09-16 17:04:42,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 802. [2019-09-16 17:04:42,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 802 states. [2019-09-16 17:04:42,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 1021 transitions. [2019-09-16 17:04:42,940 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 1021 transitions. Word has length 52 [2019-09-16 17:04:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:42,942 INFO L475 AbstractCegarLoop]: Abstraction has 802 states and 1021 transitions. [2019-09-16 17:04:42,942 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 1021 transitions. [2019-09-16 17:04:42,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:04:42,944 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:42,945 INFO L407 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] [2019-09-16 17:04:42,945 INFO L418 AbstractCegarLoop]: === Iteration 28 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:42,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:42,945 INFO L82 PathProgramCache]: Analyzing trace with hash -724978104, now seen corresponding path program 1 times [2019-09-16 17:04:42,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:42,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:42,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:42,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:42,949 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:43,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:43,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:04:43,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:43,034 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:04:43,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:04:43,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:04:43,036 INFO L87 Difference]: Start difference. First operand 802 states and 1021 transitions. Second operand 7 states. [2019-09-16 17:04:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:43,957 INFO L93 Difference]: Finished difference Result 760 states and 961 transitions. [2019-09-16 17:04:43,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-16 17:04:43,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:04:43,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:43,966 INFO L225 Difference]: With dead ends: 760 [2019-09-16 17:04:43,967 INFO L226 Difference]: Without dead ends: 760 [2019-09-16 17:04:43,967 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2019-09-16 17:04:43,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2019-09-16 17:04:43,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 742. [2019-09-16 17:04:43,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2019-09-16 17:04:43,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 938 transitions. [2019-09-16 17:04:43,984 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 938 transitions. Word has length 52 [2019-09-16 17:04:43,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:43,985 INFO L475 AbstractCegarLoop]: Abstraction has 742 states and 938 transitions. [2019-09-16 17:04:43,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:04:43,985 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 938 transitions. [2019-09-16 17:04:43,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:04:43,987 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:43,987 INFO L407 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] [2019-09-16 17:04:43,987 INFO L418 AbstractCegarLoop]: === Iteration 29 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:43,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:43,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1827381688, now seen corresponding path program 1 times [2019-09-16 17:04:43,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:43,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:43,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:43,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:43,991 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:44,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:44,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:44,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:44,041 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:44,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:44,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:44,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:44,042 INFO L87 Difference]: Start difference. First operand 742 states and 938 transitions. Second operand 3 states. [2019-09-16 17:04:44,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:44,118 INFO L93 Difference]: Finished difference Result 742 states and 936 transitions. [2019-09-16 17:04:44,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:44,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2019-09-16 17:04:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:44,123 INFO L225 Difference]: With dead ends: 742 [2019-09-16 17:04:44,123 INFO L226 Difference]: Without dead ends: 742 [2019-09-16 17:04:44,125 INFO L636 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 [2019-09-16 17:04:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2019-09-16 17:04:44,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2019-09-16 17:04:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2019-09-16 17:04:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 936 transitions. [2019-09-16 17:04:44,142 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 936 transitions. Word has length 61 [2019-09-16 17:04:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:44,143 INFO L475 AbstractCegarLoop]: Abstraction has 742 states and 936 transitions. [2019-09-16 17:04:44,143 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:44,143 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 936 transitions. [2019-09-16 17:04:44,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-16 17:04:44,145 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:44,145 INFO L407 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] [2019-09-16 17:04:44,145 INFO L418 AbstractCegarLoop]: === Iteration 30 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:44,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:44,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1295429258, now seen corresponding path program 1 times [2019-09-16 17:04:44,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:44,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:44,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:44,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:44,148 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:44,296 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:44,296 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-16 17:04:44,296 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:44,296 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-16 17:04:44,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-16 17:04:44,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-09-16 17:04:44,297 INFO L87 Difference]: Start difference. First operand 742 states and 936 transitions. Second operand 11 states. [2019-09-16 17:04:45,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:45,410 INFO L93 Difference]: Finished difference Result 793 states and 1013 transitions. [2019-09-16 17:04:45,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-16 17:04:45,411 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2019-09-16 17:04:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:45,415 INFO L225 Difference]: With dead ends: 793 [2019-09-16 17:04:45,415 INFO L226 Difference]: Without dead ends: 781 [2019-09-16 17:04:45,416 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:04:45,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-09-16 17:04:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 748. [2019-09-16 17:04:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 748 states. [2019-09-16 17:04:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 945 transitions. [2019-09-16 17:04:45,435 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 945 transitions. Word has length 54 [2019-09-16 17:04:45,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:45,435 INFO L475 AbstractCegarLoop]: Abstraction has 748 states and 945 transitions. [2019-09-16 17:04:45,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-16 17:04:45,435 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 945 transitions. [2019-09-16 17:04:45,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-16 17:04:45,437 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:45,437 INFO L407 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] [2019-09-16 17:04:45,438 INFO L418 AbstractCegarLoop]: === Iteration 31 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:45,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1936985802, now seen corresponding path program 1 times [2019-09-16 17:04:45,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:45,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:45,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:45,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:45,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:45,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:45,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:45,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:45,499 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:45,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:45,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:45,499 INFO L87 Difference]: Start difference. First operand 748 states and 945 transitions. Second operand 5 states. [2019-09-16 17:04:45,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:45,922 INFO L93 Difference]: Finished difference Result 833 states and 1051 transitions. [2019-09-16 17:04:45,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:45,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2019-09-16 17:04:45,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:45,926 INFO L225 Difference]: With dead ends: 833 [2019-09-16 17:04:45,926 INFO L226 Difference]: Without dead ends: 819 [2019-09-16 17:04:45,927 INFO L636 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 [2019-09-16 17:04:45,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2019-09-16 17:04:45,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 743. [2019-09-16 17:04:45,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 743 states. [2019-09-16 17:04:45,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 935 transitions. [2019-09-16 17:04:45,945 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 935 transitions. Word has length 54 [2019-09-16 17:04:45,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:45,945 INFO L475 AbstractCegarLoop]: Abstraction has 743 states and 935 transitions. [2019-09-16 17:04:45,945 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:45,946 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 935 transitions. [2019-09-16 17:04:45,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-16 17:04:45,947 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:45,947 INFO L407 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] [2019-09-16 17:04:45,948 INFO L418 AbstractCegarLoop]: === Iteration 32 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:45,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:45,948 INFO L82 PathProgramCache]: Analyzing trace with hash -88385251, now seen corresponding path program 1 times [2019-09-16 17:04:45,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:45,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:45,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:45,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:45,951 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:45,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:46,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:46,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:46,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:46,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:46,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:46,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:46,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:46,028 INFO L87 Difference]: Start difference. First operand 743 states and 935 transitions. Second operand 8 states. [2019-09-16 17:04:46,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:46,076 INFO L93 Difference]: Finished difference Result 753 states and 944 transitions. [2019-09-16 17:04:46,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:46,077 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 55 [2019-09-16 17:04:46,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:46,080 INFO L225 Difference]: With dead ends: 753 [2019-09-16 17:04:46,081 INFO L226 Difference]: Without dead ends: 728 [2019-09-16 17:04:46,081 INFO L636 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 [2019-09-16 17:04:46,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-09-16 17:04:46,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2019-09-16 17:04:46,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-09-16 17:04:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 916 transitions. [2019-09-16 17:04:46,098 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 916 transitions. Word has length 55 [2019-09-16 17:04:46,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:46,099 INFO L475 AbstractCegarLoop]: Abstraction has 728 states and 916 transitions. [2019-09-16 17:04:46,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 916 transitions. [2019-09-16 17:04:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-16 17:04:46,101 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:46,101 INFO L407 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] [2019-09-16 17:04:46,101 INFO L418 AbstractCegarLoop]: === Iteration 33 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:46,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:46,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1842434508, now seen corresponding path program 1 times [2019-09-16 17:04:46,102 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:46,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:46,105 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,105 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:46,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:46,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:46,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:46,174 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:46,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:46,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:46,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:46,175 INFO L87 Difference]: Start difference. First operand 728 states and 916 transitions. Second operand 8 states. [2019-09-16 17:04:46,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:46,308 INFO L93 Difference]: Finished difference Result 748 states and 936 transitions. [2019-09-16 17:04:46,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:46,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-09-16 17:04:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:46,312 INFO L225 Difference]: With dead ends: 748 [2019-09-16 17:04:46,312 INFO L226 Difference]: Without dead ends: 723 [2019-09-16 17:04:46,313 INFO L636 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 [2019-09-16 17:04:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-09-16 17:04:46,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2019-09-16 17:04:46,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2019-09-16 17:04:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 908 transitions. [2019-09-16 17:04:46,330 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 908 transitions. Word has length 56 [2019-09-16 17:04:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:46,330 INFO L475 AbstractCegarLoop]: Abstraction has 723 states and 908 transitions. [2019-09-16 17:04:46,330 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:46,330 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 908 transitions. [2019-09-16 17:04:46,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:04:46,333 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:46,333 INFO L407 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] [2019-09-16 17:04:46,333 INFO L418 AbstractCegarLoop]: === Iteration 34 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:46,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:46,334 INFO L82 PathProgramCache]: Analyzing trace with hash 407710022, now seen corresponding path program 1 times [2019-09-16 17:04:46,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:46,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:46,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,337 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:46,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:46,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:46,464 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:46,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:46,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:46,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:46,465 INFO L87 Difference]: Start difference. First operand 723 states and 908 transitions. Second operand 5 states. [2019-09-16 17:04:46,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:46,478 INFO L93 Difference]: Finished difference Result 665 states and 824 transitions. [2019-09-16 17:04:46,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:46,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-16 17:04:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:46,488 INFO L225 Difference]: With dead ends: 665 [2019-09-16 17:04:46,489 INFO L226 Difference]: Without dead ends: 665 [2019-09-16 17:04:46,489 INFO L636 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 [2019-09-16 17:04:46,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2019-09-16 17:04:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 665. [2019-09-16 17:04:46,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 665 states. [2019-09-16 17:04:46,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 824 transitions. [2019-09-16 17:04:46,510 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 824 transitions. Word has length 64 [2019-09-16 17:04:46,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:46,511 INFO L475 AbstractCegarLoop]: Abstraction has 665 states and 824 transitions. [2019-09-16 17:04:46,511 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:46,511 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 824 transitions. [2019-09-16 17:04:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-16 17:04:46,515 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:46,516 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:46,516 INFO L418 AbstractCegarLoop]: === Iteration 35 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:46,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:46,516 INFO L82 PathProgramCache]: Analyzing trace with hash 727993337, now seen corresponding path program 1 times [2019-09-16 17:04:46,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:46,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:46,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:46,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:46,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:46,585 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:46,586 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:46,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:46,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:46,586 INFO L87 Difference]: Start difference. First operand 665 states and 824 transitions. Second operand 6 states. [2019-09-16 17:04:46,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:46,638 INFO L93 Difference]: Finished difference Result 693 states and 852 transitions. [2019-09-16 17:04:46,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:46,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2019-09-16 17:04:46,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:46,642 INFO L225 Difference]: With dead ends: 693 [2019-09-16 17:04:46,642 INFO L226 Difference]: Without dead ends: 672 [2019-09-16 17:04:46,643 INFO L636 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 [2019-09-16 17:04:46,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2019-09-16 17:04:46,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 660. [2019-09-16 17:04:46,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2019-09-16 17:04:46,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 818 transitions. [2019-09-16 17:04:46,658 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 818 transitions. Word has length 60 [2019-09-16 17:04:46,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:46,658 INFO L475 AbstractCegarLoop]: Abstraction has 660 states and 818 transitions. [2019-09-16 17:04:46,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:46,659 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 818 transitions. [2019-09-16 17:04:46,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-16 17:04:46,661 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:46,661 INFO L407 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] [2019-09-16 17:04:46,661 INFO L418 AbstractCegarLoop]: === Iteration 36 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:46,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1568169683, now seen corresponding path program 1 times [2019-09-16 17:04:46,662 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:46,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:46,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:46,665 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:46,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:46,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:46,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:46,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:46,733 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:46,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:46,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:46,734 INFO L87 Difference]: Start difference. First operand 660 states and 818 transitions. Second operand 5 states. [2019-09-16 17:04:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:47,021 INFO L93 Difference]: Finished difference Result 660 states and 816 transitions. [2019-09-16 17:04:47,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:47,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-09-16 17:04:47,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:47,025 INFO L225 Difference]: With dead ends: 660 [2019-09-16 17:04:47,025 INFO L226 Difference]: Without dead ends: 660 [2019-09-16 17:04:47,026 INFO L636 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 [2019-09-16 17:04:47,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2019-09-16 17:04:47,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 660. [2019-09-16 17:04:47,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 660 states. [2019-09-16 17:04:47,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 816 transitions. [2019-09-16 17:04:47,041 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 816 transitions. Word has length 68 [2019-09-16 17:04:47,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:47,042 INFO L475 AbstractCegarLoop]: Abstraction has 660 states and 816 transitions. [2019-09-16 17:04:47,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:47,042 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 816 transitions. [2019-09-16 17:04:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:04:47,044 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:47,044 INFO L407 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] [2019-09-16 17:04:47,045 INFO L418 AbstractCegarLoop]: === Iteration 37 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:47,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:47,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1688753324, now seen corresponding path program 1 times [2019-09-16 17:04:47,045 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:47,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:47,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,049 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:47,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:47,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:47,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:47,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:47,129 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:47,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:47,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:47,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:47,130 INFO L87 Difference]: Start difference. First operand 660 states and 816 transitions. Second operand 9 states. [2019-09-16 17:04:47,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:47,313 INFO L93 Difference]: Finished difference Result 686 states and 844 transitions. [2019-09-16 17:04:47,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:47,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 61 [2019-09-16 17:04:47,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:47,323 INFO L225 Difference]: With dead ends: 686 [2019-09-16 17:04:47,324 INFO L226 Difference]: Without dead ends: 655 [2019-09-16 17:04:47,326 INFO L636 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 [2019-09-16 17:04:47,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2019-09-16 17:04:47,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2019-09-16 17:04:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-09-16 17:04:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 808 transitions. [2019-09-16 17:04:47,345 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 808 transitions. Word has length 61 [2019-09-16 17:04:47,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:47,347 INFO L475 AbstractCegarLoop]: Abstraction has 655 states and 808 transitions. [2019-09-16 17:04:47,348 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 808 transitions. [2019-09-16 17:04:47,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-16 17:04:47,350 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:47,350 INFO L407 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] [2019-09-16 17:04:47,350 INFO L418 AbstractCegarLoop]: === Iteration 38 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:47,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1152303328, now seen corresponding path program 1 times [2019-09-16 17:04:47,351 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:47,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:47,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,354 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:47,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:47,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:47,421 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:47,421 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:47,421 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:47,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:47,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:47,422 INFO L87 Difference]: Start difference. First operand 655 states and 808 transitions. Second operand 5 states. [2019-09-16 17:04:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:47,443 INFO L93 Difference]: Finished difference Result 661 states and 815 transitions. [2019-09-16 17:04:47,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:47,444 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-09-16 17:04:47,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:47,446 INFO L225 Difference]: With dead ends: 661 [2019-09-16 17:04:47,447 INFO L226 Difference]: Without dead ends: 661 [2019-09-16 17:04:47,447 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:47,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-09-16 17:04:47,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 659. [2019-09-16 17:04:47,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-09-16 17:04:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 812 transitions. [2019-09-16 17:04:47,458 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 812 transitions. Word has length 63 [2019-09-16 17:04:47,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:47,458 INFO L475 AbstractCegarLoop]: Abstraction has 659 states and 812 transitions. [2019-09-16 17:04:47,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:47,459 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 812 transitions. [2019-09-16 17:04:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-16 17:04:47,460 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:47,461 INFO L407 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] [2019-09-16 17:04:47,461 INFO L418 AbstractCegarLoop]: === Iteration 39 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:47,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:47,461 INFO L82 PathProgramCache]: Analyzing trace with hash -862866401, now seen corresponding path program 1 times [2019-09-16 17:04:47,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:47,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:47,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,468 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:47,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:47,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:47,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:47,600 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:47,600 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:47,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:47,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:47,601 INFO L87 Difference]: Start difference. First operand 659 states and 812 transitions. Second operand 9 states. [2019-09-16 17:04:47,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:47,706 INFO L93 Difference]: Finished difference Result 664 states and 816 transitions. [2019-09-16 17:04:47,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:47,707 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2019-09-16 17:04:47,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:47,710 INFO L225 Difference]: With dead ends: 664 [2019-09-16 17:04:47,711 INFO L226 Difference]: Without dead ends: 661 [2019-09-16 17:04:47,711 INFO L636 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 [2019-09-16 17:04:47,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2019-09-16 17:04:47,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 659. [2019-09-16 17:04:47,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2019-09-16 17:04:47,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 811 transitions. [2019-09-16 17:04:47,727 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 811 transitions. Word has length 63 [2019-09-16 17:04:47,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:47,728 INFO L475 AbstractCegarLoop]: Abstraction has 659 states and 811 transitions. [2019-09-16 17:04:47,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:47,728 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 811 transitions. [2019-09-16 17:04:47,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:04:47,731 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:47,731 INFO L407 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] [2019-09-16 17:04:47,731 INFO L418 AbstractCegarLoop]: === Iteration 40 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:47,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:47,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1439197500, now seen corresponding path program 1 times [2019-09-16 17:04:47,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:47,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:47,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:47,746 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:47,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:47,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:47,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:47,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:47,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:47,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:47,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:47,866 INFO L87 Difference]: Start difference. First operand 659 states and 811 transitions. Second operand 9 states. [2019-09-16 17:04:48,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:48,133 INFO L93 Difference]: Finished difference Result 685 states and 839 transitions. [2019-09-16 17:04:48,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:48,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-09-16 17:04:48,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:48,138 INFO L225 Difference]: With dead ends: 685 [2019-09-16 17:04:48,138 INFO L226 Difference]: Without dead ends: 653 [2019-09-16 17:04:48,139 INFO L636 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 [2019-09-16 17:04:48,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2019-09-16 17:04:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 653. [2019-09-16 17:04:48,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2019-09-16 17:04:48,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 802 transitions. [2019-09-16 17:04:48,158 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 802 transitions. Word has length 62 [2019-09-16 17:04:48,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:48,159 INFO L475 AbstractCegarLoop]: Abstraction has 653 states and 802 transitions. [2019-09-16 17:04:48,159 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:48,159 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 802 transitions. [2019-09-16 17:04:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:04:48,161 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:48,161 INFO L407 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] [2019-09-16 17:04:48,161 INFO L418 AbstractCegarLoop]: === Iteration 41 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:48,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:48,162 INFO L82 PathProgramCache]: Analyzing trace with hash 607542358, now seen corresponding path program 1 times [2019-09-16 17:04:48,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:48,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:48,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:48,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:48,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:48,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:48,281 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:48,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:48,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:48,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:48,283 INFO L87 Difference]: Start difference. First operand 653 states and 802 transitions. Second operand 9 states. [2019-09-16 17:04:48,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:48,452 INFO L93 Difference]: Finished difference Result 679 states and 830 transitions. [2019-09-16 17:04:48,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:48,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-09-16 17:04:48,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:48,456 INFO L225 Difference]: With dead ends: 679 [2019-09-16 17:04:48,460 INFO L226 Difference]: Without dead ends: 648 [2019-09-16 17:04:48,460 INFO L636 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 [2019-09-16 17:04:48,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2019-09-16 17:04:48,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2019-09-16 17:04:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2019-09-16 17:04:48,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 794 transitions. [2019-09-16 17:04:48,475 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 794 transitions. Word has length 62 [2019-09-16 17:04:48,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:48,475 INFO L475 AbstractCegarLoop]: Abstraction has 648 states and 794 transitions. [2019-09-16 17:04:48,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:48,476 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 794 transitions. [2019-09-16 17:04:48,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-16 17:04:48,478 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:48,478 INFO L407 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] [2019-09-16 17:04:48,478 INFO L418 AbstractCegarLoop]: === Iteration 42 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:48,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:48,479 INFO L82 PathProgramCache]: Analyzing trace with hash 500831766, now seen corresponding path program 1 times [2019-09-16 17:04:48,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:48,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:48,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,482 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:48,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:48,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:48,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:48,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:48,583 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:48,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:48,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:48,583 INFO L87 Difference]: Start difference. First operand 648 states and 794 transitions. Second operand 6 states. [2019-09-16 17:04:48,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:48,618 INFO L93 Difference]: Finished difference Result 643 states and 787 transitions. [2019-09-16 17:04:48,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:04:48,619 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2019-09-16 17:04:48,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:48,624 INFO L225 Difference]: With dead ends: 643 [2019-09-16 17:04:48,625 INFO L226 Difference]: Without dead ends: 640 [2019-09-16 17:04:48,625 INFO L636 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 [2019-09-16 17:04:48,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-09-16 17:04:48,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2019-09-16 17:04:48,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 640 states. [2019-09-16 17:04:48,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 784 transitions. [2019-09-16 17:04:48,636 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 784 transitions. Word has length 63 [2019-09-16 17:04:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:48,637 INFO L475 AbstractCegarLoop]: Abstraction has 640 states and 784 transitions. [2019-09-16 17:04:48,637 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:48,637 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 784 transitions. [2019-09-16 17:04:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-16 17:04:48,639 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:48,639 INFO L407 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] [2019-09-16 17:04:48,639 INFO L418 AbstractCegarLoop]: === Iteration 43 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash -392212102, now seen corresponding path program 1 times [2019-09-16 17:04:48,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:48,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:48,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,645 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:48,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:48,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:48,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-16 17:04:48,717 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:48,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-16 17:04:48,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-16 17:04:48,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-16 17:04:48,718 INFO L87 Difference]: Start difference. First operand 640 states and 784 transitions. Second operand 8 states. [2019-09-16 17:04:48,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:48,837 INFO L93 Difference]: Finished difference Result 654 states and 798 transitions. [2019-09-16 17:04:48,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:04:48,837 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 62 [2019-09-16 17:04:48,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:48,840 INFO L225 Difference]: With dead ends: 654 [2019-09-16 17:04:48,840 INFO L226 Difference]: Without dead ends: 625 [2019-09-16 17:04:48,841 INFO L636 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 [2019-09-16 17:04:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-09-16 17:04:48,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 625. [2019-09-16 17:04:48,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-09-16 17:04:48,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 764 transitions. [2019-09-16 17:04:48,854 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 764 transitions. Word has length 62 [2019-09-16 17:04:48,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:48,854 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 764 transitions. [2019-09-16 17:04:48,854 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-16 17:04:48,854 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 764 transitions. [2019-09-16 17:04:48,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-16 17:04:48,856 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:48,856 INFO L407 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] [2019-09-16 17:04:48,857 INFO L418 AbstractCegarLoop]: === Iteration 44 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:48,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1207446898, now seen corresponding path program 1 times [2019-09-16 17:04:48,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:48,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:48,860 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:48,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:48,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:48,980 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:48,980 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:48,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:48,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:48,981 INFO L87 Difference]: Start difference. First operand 625 states and 764 transitions. Second operand 6 states. [2019-09-16 17:04:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:49,114 INFO L93 Difference]: Finished difference Result 650 states and 795 transitions. [2019-09-16 17:04:49,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:49,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 71 [2019-09-16 17:04:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:49,117 INFO L225 Difference]: With dead ends: 650 [2019-09-16 17:04:49,117 INFO L226 Difference]: Without dead ends: 650 [2019-09-16 17:04:49,117 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:04:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2019-09-16 17:04:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 625. [2019-09-16 17:04:49,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2019-09-16 17:04:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 762 transitions. [2019-09-16 17:04:49,127 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 762 transitions. Word has length 71 [2019-09-16 17:04:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:49,129 INFO L475 AbstractCegarLoop]: Abstraction has 625 states and 762 transitions. [2019-09-16 17:04:49,129 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:49,129 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 762 transitions. [2019-09-16 17:04:49,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-16 17:04:49,130 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:49,131 INFO L407 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] [2019-09-16 17:04:49,131 INFO L418 AbstractCegarLoop]: === Iteration 45 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:49,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:49,131 INFO L82 PathProgramCache]: Analyzing trace with hash -251803701, now seen corresponding path program 1 times [2019-09-16 17:04:49,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:49,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:49,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:49,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:49,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:49,282 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:49,282 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:49,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:49,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:49,283 INFO L87 Difference]: Start difference. First operand 625 states and 762 transitions. Second operand 5 states. [2019-09-16 17:04:49,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:49,304 INFO L93 Difference]: Finished difference Result 615 states and 752 transitions. [2019-09-16 17:04:49,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:49,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-16 17:04:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:49,307 INFO L225 Difference]: With dead ends: 615 [2019-09-16 17:04:49,308 INFO L226 Difference]: Without dead ends: 615 [2019-09-16 17:04:49,308 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:49,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-09-16 17:04:49,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 605. [2019-09-16 17:04:49,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2019-09-16 17:04:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 740 transitions. [2019-09-16 17:04:49,319 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 740 transitions. Word has length 64 [2019-09-16 17:04:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:49,319 INFO L475 AbstractCegarLoop]: Abstraction has 605 states and 740 transitions. [2019-09-16 17:04:49,319 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 740 transitions. [2019-09-16 17:04:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-16 17:04:49,321 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:49,321 INFO L407 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] [2019-09-16 17:04:49,322 INFO L418 AbstractCegarLoop]: === Iteration 46 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:49,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1603697752, now seen corresponding path program 1 times [2019-09-16 17:04:49,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:49,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:49,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,326 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:49,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:49,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:49,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:49,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:04:49,378 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:49,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:04:49,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:04:49,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:04:49,379 INFO L87 Difference]: Start difference. First operand 605 states and 740 transitions. Second operand 3 states. [2019-09-16 17:04:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:49,394 INFO L93 Difference]: Finished difference Result 709 states and 868 transitions. [2019-09-16 17:04:49,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:04:49,394 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2019-09-16 17:04:49,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:49,397 INFO L225 Difference]: With dead ends: 709 [2019-09-16 17:04:49,397 INFO L226 Difference]: Without dead ends: 709 [2019-09-16 17:04:49,397 INFO L636 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 [2019-09-16 17:04:49,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2019-09-16 17:04:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 679. [2019-09-16 17:04:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 679 states. [2019-09-16 17:04:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 834 transitions. [2019-09-16 17:04:49,410 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 834 transitions. Word has length 73 [2019-09-16 17:04:49,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:49,410 INFO L475 AbstractCegarLoop]: Abstraction has 679 states and 834 transitions. [2019-09-16 17:04:49,410 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:04:49,410 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 834 transitions. [2019-09-16 17:04:49,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-16 17:04:49,412 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:49,412 INFO L407 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] [2019-09-16 17:04:49,412 INFO L418 AbstractCegarLoop]: === Iteration 47 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:49,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:49,413 INFO L82 PathProgramCache]: Analyzing trace with hash 438096047, now seen corresponding path program 1 times [2019-09-16 17:04:49,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:49,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:49,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,415 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:49,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:49,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:49,507 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:49,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:49,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:49,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:49,508 INFO L87 Difference]: Start difference. First operand 679 states and 834 transitions. Second operand 9 states. [2019-09-16 17:04:49,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:49,713 INFO L93 Difference]: Finished difference Result 705 states and 862 transitions. [2019-09-16 17:04:49,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:49,714 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2019-09-16 17:04:49,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:49,717 INFO L225 Difference]: With dead ends: 705 [2019-09-16 17:04:49,717 INFO L226 Difference]: Without dead ends: 633 [2019-09-16 17:04:49,717 INFO L636 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 [2019-09-16 17:04:49,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-09-16 17:04:49,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2019-09-16 17:04:49,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2019-09-16 17:04:49,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 777 transitions. [2019-09-16 17:04:49,728 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 777 transitions. Word has length 66 [2019-09-16 17:04:49,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:49,728 INFO L475 AbstractCegarLoop]: Abstraction has 633 states and 777 transitions. [2019-09-16 17:04:49,729 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:49,729 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 777 transitions. [2019-09-16 17:04:49,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-16 17:04:49,731 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:49,731 INFO L407 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:49,731 INFO L418 AbstractCegarLoop]: === Iteration 48 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:49,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:49,732 INFO L82 PathProgramCache]: Analyzing trace with hash -760769285, now seen corresponding path program 1 times [2019-09-16 17:04:49,732 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:49,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:49,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:49,735 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:49,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:49,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:49,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 17:04:49,827 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:49,827 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 17:04:49,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 17:04:49,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:04:49,828 INFO L87 Difference]: Start difference. First operand 633 states and 777 transitions. Second operand 4 states. [2019-09-16 17:04:50,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:50,016 INFO L93 Difference]: Finished difference Result 913 states and 1089 transitions. [2019-09-16 17:04:50,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 17:04:50,016 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 82 [2019-09-16 17:04:50,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:50,026 INFO L225 Difference]: With dead ends: 913 [2019-09-16 17:04:50,026 INFO L226 Difference]: Without dead ends: 909 [2019-09-16 17:04:50,026 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 17:04:50,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2019-09-16 17:04:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 773. [2019-09-16 17:04:50,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2019-09-16 17:04:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 936 transitions. [2019-09-16 17:04:50,042 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 936 transitions. Word has length 82 [2019-09-16 17:04:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:50,043 INFO L475 AbstractCegarLoop]: Abstraction has 773 states and 936 transitions. [2019-09-16 17:04:50,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 17:04:50,043 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 936 transitions. [2019-09-16 17:04:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-16 17:04:50,045 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:50,045 INFO L407 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:50,046 INFO L418 AbstractCegarLoop]: === Iteration 49 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:50,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1321469063, now seen corresponding path program 1 times [2019-09-16 17:04:50,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:50,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:50,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:50,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:50,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:50,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:50,176 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:50,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:04:50,176 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:50,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:04:50,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:04:50,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:04:50,178 INFO L87 Difference]: Start difference. First operand 773 states and 936 transitions. Second operand 7 states. [2019-09-16 17:04:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:51,078 INFO L93 Difference]: Finished difference Result 788 states and 946 transitions. [2019-09-16 17:04:51,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-16 17:04:51,079 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-09-16 17:04:51,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:51,082 INFO L225 Difference]: With dead ends: 788 [2019-09-16 17:04:51,082 INFO L226 Difference]: Without dead ends: 788 [2019-09-16 17:04:51,087 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:04:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-09-16 17:04:51,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 757. [2019-09-16 17:04:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 757 states. [2019-09-16 17:04:51,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 908 transitions. [2019-09-16 17:04:51,102 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 908 transitions. Word has length 82 [2019-09-16 17:04:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:51,103 INFO L475 AbstractCegarLoop]: Abstraction has 757 states and 908 transitions. [2019-09-16 17:04:51,103 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:04:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 908 transitions. [2019-09-16 17:04:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-16 17:04:51,105 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:51,106 INFO L407 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, 1] [2019-09-16 17:04:51,106 INFO L418 AbstractCegarLoop]: === Iteration 50 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:51,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:51,106 INFO L82 PathProgramCache]: Analyzing trace with hash 448269423, now seen corresponding path program 1 times [2019-09-16 17:04:51,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:51,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:51,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,110 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:51,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:51,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:51,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:51,164 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:51,165 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:51,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:51,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:51,167 INFO L87 Difference]: Start difference. First operand 757 states and 908 transitions. Second operand 5 states. [2019-09-16 17:04:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:51,192 INFO L93 Difference]: Finished difference Result 777 states and 930 transitions. [2019-09-16 17:04:51,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 17:04:51,192 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2019-09-16 17:04:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:51,202 INFO L225 Difference]: With dead ends: 777 [2019-09-16 17:04:51,203 INFO L226 Difference]: Without dead ends: 777 [2019-09-16 17:04:51,203 INFO L636 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 [2019-09-16 17:04:51,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2019-09-16 17:04:51,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 769. [2019-09-16 17:04:51,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2019-09-16 17:04:51,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 922 transitions. [2019-09-16 17:04:51,216 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 922 transitions. Word has length 76 [2019-09-16 17:04:51,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:51,216 INFO L475 AbstractCegarLoop]: Abstraction has 769 states and 922 transitions. [2019-09-16 17:04:51,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:51,216 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 922 transitions. [2019-09-16 17:04:51,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-16 17:04:51,218 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:51,218 INFO L407 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, 1] [2019-09-16 17:04:51,219 INFO L418 AbstractCegarLoop]: === Iteration 51 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:51,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:51,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1161185424, now seen corresponding path program 1 times [2019-09-16 17:04:51,219 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:51,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:51,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,222 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:51,298 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:51,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:51,298 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:51,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:51,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:51,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:51,299 INFO L87 Difference]: Start difference. First operand 769 states and 922 transitions. Second operand 9 states. [2019-09-16 17:04:51,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:51,361 INFO L93 Difference]: Finished difference Result 759 states and 906 transitions. [2019-09-16 17:04:51,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:51,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2019-09-16 17:04:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:51,365 INFO L225 Difference]: With dead ends: 759 [2019-09-16 17:04:51,365 INFO L226 Difference]: Without dead ends: 723 [2019-09-16 17:04:51,366 INFO L636 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 [2019-09-16 17:04:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-09-16 17:04:51,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 719. [2019-09-16 17:04:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 719 states. [2019-09-16 17:04:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 855 transitions. [2019-09-16 17:04:51,380 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 855 transitions. Word has length 76 [2019-09-16 17:04:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:51,380 INFO L475 AbstractCegarLoop]: Abstraction has 719 states and 855 transitions. [2019-09-16 17:04:51,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 855 transitions. [2019-09-16 17:04:51,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-16 17:04:51,384 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:51,384 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:51,384 INFO L418 AbstractCegarLoop]: === Iteration 52 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:51,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:51,384 INFO L82 PathProgramCache]: Analyzing trace with hash 531350456, now seen corresponding path program 1 times [2019-09-16 17:04:51,385 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:51,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:51,387 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,387 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:51,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:51,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:04:51,473 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:51,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:04:51,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:04:51,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:04:51,474 INFO L87 Difference]: Start difference. First operand 719 states and 855 transitions. Second operand 6 states. [2019-09-16 17:04:51,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:51,523 INFO L93 Difference]: Finished difference Result 798 states and 981 transitions. [2019-09-16 17:04:51,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:51,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-09-16 17:04:51,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:51,527 INFO L225 Difference]: With dead ends: 798 [2019-09-16 17:04:51,527 INFO L226 Difference]: Without dead ends: 798 [2019-09-16 17:04:51,527 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:04:51,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2019-09-16 17:04:51,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 685. [2019-09-16 17:04:51,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2019-09-16 17:04:51,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 811 transitions. [2019-09-16 17:04:51,543 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 811 transitions. Word has length 83 [2019-09-16 17:04:51,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:51,543 INFO L475 AbstractCegarLoop]: Abstraction has 685 states and 811 transitions. [2019-09-16 17:04:51,543 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:04:51,544 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 811 transitions. [2019-09-16 17:04:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-16 17:04:51,546 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:51,546 INFO L407 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, 1, 1, 1] [2019-09-16 17:04:51,547 INFO L418 AbstractCegarLoop]: === Iteration 53 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:51,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:51,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1176705031, now seen corresponding path program 1 times [2019-09-16 17:04:51,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:51,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:51,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:51,550 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:51,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:51,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 17:04:51,611 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:51,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 17:04:51,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 17:04:51,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-16 17:04:51,612 INFO L87 Difference]: Start difference. First operand 685 states and 811 transitions. Second operand 5 states. [2019-09-16 17:04:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:52,013 INFO L93 Difference]: Finished difference Result 783 states and 907 transitions. [2019-09-16 17:04:52,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-16 17:04:52,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2019-09-16 17:04:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:52,016 INFO L225 Difference]: With dead ends: 783 [2019-09-16 17:04:52,016 INFO L226 Difference]: Without dead ends: 783 [2019-09-16 17:04:52,017 INFO L636 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 [2019-09-16 17:04:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2019-09-16 17:04:52,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 760. [2019-09-16 17:04:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 760 states. [2019-09-16 17:04:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 885 transitions. [2019-09-16 17:04:52,032 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 885 transitions. Word has length 78 [2019-09-16 17:04:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:52,032 INFO L475 AbstractCegarLoop]: Abstraction has 760 states and 885 transitions. [2019-09-16 17:04:52,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 17:04:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 885 transitions. [2019-09-16 17:04:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-16 17:04:52,035 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:52,035 INFO L407 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, 1, 1, 1, 1] [2019-09-16 17:04:52,036 INFO L418 AbstractCegarLoop]: === Iteration 54 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:52,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:52,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1769905959, now seen corresponding path program 1 times [2019-09-16 17:04:52,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:52,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:52,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:52,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:52,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:52,111 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:52,112 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:52,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:52,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:52,113 INFO L87 Difference]: Start difference. First operand 760 states and 885 transitions. Second operand 9 states. [2019-09-16 17:04:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:52,243 INFO L93 Difference]: Finished difference Result 759 states and 883 transitions. [2019-09-16 17:04:52,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:52,243 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2019-09-16 17:04:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:52,245 INFO L225 Difference]: With dead ends: 759 [2019-09-16 17:04:52,245 INFO L226 Difference]: Without dead ends: 622 [2019-09-16 17:04:52,246 INFO L636 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 [2019-09-16 17:04:52,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-09-16 17:04:52,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-09-16 17:04:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-09-16 17:04:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 726 transitions. [2019-09-16 17:04:52,257 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 726 transitions. Word has length 79 [2019-09-16 17:04:52,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:52,257 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 726 transitions. [2019-09-16 17:04:52,257 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:52,258 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 726 transitions. [2019-09-16 17:04:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-16 17:04:52,259 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:52,259 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:52,260 INFO L418 AbstractCegarLoop]: === Iteration 55 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:52,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:52,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1765631649, now seen corresponding path program 1 times [2019-09-16 17:04:52,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:52,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:52,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:52,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:52,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:52,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:52,353 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:52,353 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:52,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:52,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:52,354 INFO L87 Difference]: Start difference. First operand 622 states and 726 transitions. Second operand 9 states. [2019-09-16 17:04:52,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:52,456 INFO L93 Difference]: Finished difference Result 658 states and 764 transitions. [2019-09-16 17:04:52,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-16 17:04:52,456 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-09-16 17:04:52,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:52,458 INFO L225 Difference]: With dead ends: 658 [2019-09-16 17:04:52,458 INFO L226 Difference]: Without dead ends: 640 [2019-09-16 17:04:52,459 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2019-09-16 17:04:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2019-09-16 17:04:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 622. [2019-09-16 17:04:52,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-09-16 17:04:52,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 725 transitions. [2019-09-16 17:04:52,469 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 725 transitions. Word has length 88 [2019-09-16 17:04:52,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:52,469 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 725 transitions. [2019-09-16 17:04:52,469 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:52,470 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 725 transitions. [2019-09-16 17:04:52,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-16 17:04:52,471 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:52,471 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:52,472 INFO L418 AbstractCegarLoop]: === Iteration 56 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:52,472 INFO L82 PathProgramCache]: Analyzing trace with hash 1105227521, now seen corresponding path program 1 times [2019-09-16 17:04:52,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:52,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:52,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:52,475 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:52,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:52,581 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:52,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-16 17:04:52,582 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:52,582 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-16 17:04:52,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-16 17:04:52,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-16 17:04:52,583 INFO L87 Difference]: Start difference. First operand 622 states and 725 transitions. Second operand 10 states. [2019-09-16 17:04:53,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:53,722 INFO L93 Difference]: Finished difference Result 627 states and 728 transitions. [2019-09-16 17:04:53,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-16 17:04:53,724 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-09-16 17:04:53,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:53,726 INFO L225 Difference]: With dead ends: 627 [2019-09-16 17:04:53,726 INFO L226 Difference]: Without dead ends: 627 [2019-09-16 17:04:53,728 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:04:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2019-09-16 17:04:53,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 622. [2019-09-16 17:04:53,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-09-16 17:04:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 724 transitions. [2019-09-16 17:04:53,740 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 724 transitions. Word has length 83 [2019-09-16 17:04:53,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:53,740 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 724 transitions. [2019-09-16 17:04:53,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-16 17:04:53,740 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 724 transitions. [2019-09-16 17:04:53,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-16 17:04:53,742 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:53,742 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:53,742 INFO L418 AbstractCegarLoop]: === Iteration 57 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:53,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:53,743 INFO L82 PathProgramCache]: Analyzing trace with hash -534357869, now seen corresponding path program 1 times [2019-09-16 17:04:53,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:53,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:53,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:53,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:53,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:04:53,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:04:53,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:04:53,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-16 17:04:53,841 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:04:53,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-16 17:04:53,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-16 17:04:53,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:04:53,842 INFO L87 Difference]: Start difference. First operand 622 states and 724 transitions. Second operand 9 states. [2019-09-16 17:04:54,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:54,947 INFO L93 Difference]: Finished difference Result 614 states and 716 transitions. [2019-09-16 17:04:54,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-16 17:04:54,947 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 84 [2019-09-16 17:04:54,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:54,949 INFO L225 Difference]: With dead ends: 614 [2019-09-16 17:04:54,949 INFO L226 Difference]: Without dead ends: 614 [2019-09-16 17:04:54,950 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2019-09-16 17:04:54,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2019-09-16 17:04:54,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 598. [2019-09-16 17:04:54,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 598 states. [2019-09-16 17:04:54,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 697 transitions. [2019-09-16 17:04:54,963 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 697 transitions. Word has length 84 [2019-09-16 17:04:54,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:54,963 INFO L475 AbstractCegarLoop]: Abstraction has 598 states and 697 transitions. [2019-09-16 17:04:54,963 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-16 17:04:54,964 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 697 transitions. [2019-09-16 17:04:54,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-16 17:04:54,966 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:04:54,966 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:04:54,966 INFO L418 AbstractCegarLoop]: === Iteration 58 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:04:54,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:04:54,967 INFO L82 PathProgramCache]: Analyzing trace with hash -1790671204, now seen corresponding path program 1 times [2019-09-16 17:04:54,967 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:04:54,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:54,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:04:54,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:04:54,970 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:04:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 17:04:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-16 17:04:55,123 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-16 17:04:55,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:04:55 BoogieIcfgContainer [2019-09-16 17:04:55,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:04:55,285 INFO L168 Benchmark]: Toolchain (without parser) took 29965.14 ms. Allocated memory was 135.8 MB in the beginning and 625.5 MB in the end (delta: 489.7 MB). Free memory was 81.6 MB in the beginning and 326.8 MB in the end (delta: -245.3 MB). Peak memory consumption was 244.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,286 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 101.7 MB in the beginning and 101.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.44 ms. Allocated memory was 135.8 MB in the beginning and 197.1 MB in the end (delta: 61.3 MB). Free memory was 81.3 MB in the beginning and 158.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,288 INFO L168 Benchmark]: Boogie Preprocessor took 98.22 ms. Allocated memory is still 197.1 MB. Free memory was 158.5 MB in the beginning and 154.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,289 INFO L168 Benchmark]: RCFGBuilder took 1654.33 ms. Allocated memory was 197.1 MB in the beginning and 213.4 MB in the end (delta: 16.3 MB). Free memory was 153.8 MB in the beginning and 155.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 96.2 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,290 INFO L168 Benchmark]: TraceAbstraction took 27379.48 ms. Allocated memory was 213.4 MB in the beginning and 625.5 MB in the end (delta: 412.1 MB). Free memory was 154.4 MB in the beginning and 326.8 MB in the end (delta: -172.5 MB). Peak memory consumption was 239.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:55,296 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory was 101.7 MB in the beginning and 101.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.44 ms. Allocated memory was 135.8 MB in the beginning and 197.1 MB in the end (delta: 61.3 MB). Free memory was 81.3 MB in the beginning and 158.5 MB in the end (delta: -77.1 MB). Peak memory consumption was 25.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.22 ms. Allocated memory is still 197.1 MB. Free memory was 158.5 MB in the beginning and 154.5 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1654.33 ms. Allocated memory was 197.1 MB in the beginning and 213.4 MB in the end (delta: 16.3 MB). Free memory was 153.8 MB in the beginning and 155.7 MB in the end (delta: -1.9 MB). Peak memory consumption was 96.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27379.48 ms. Allocated memory was 213.4 MB in the beginning and 625.5 MB in the end (delta: 412.1 MB). Free memory was 154.4 MB in the beginning and 326.8 MB in the end (delta: -172.5 MB). Peak memory consumption was 239.6 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; VAL [\old(compRegistered)=277, \old(customIrp)=280, \old(DC)=274, \old(DiskController)=276, \old(Executive)=278, \old(FlConfigCallBack)=265, \old(FloppyDiskPeripheral)=275, \old(FloppyThread)=261, \old(IPC)=262, \old(KernelMode)=272, \old(lowerDriverReturn)=285, \old(MaximumInterfaceType)=284, \old(MOUNTDEV_MOUNTED_DEVICE_GUID)=260, \old(MPR1)=268, \old(MPR3)=281, \old(myStatus)=283, \old(NP)=279, \old(PagingMutex)=266, \old(PagingReferenceCount)=270, \old(pended)=271, \old(s)=263, \old(setEventCalled)=282, \old(SKIP1)=267, \old(SKIP2)=264, \old(Suspended)=269, \old(UNLOADED)=273, 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] [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 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=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, PagingMutex=0, PagingReferenceCount=0, pended=0, s=0, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=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 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, pirp__IoStatus__Status=0, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, status=0, Suspended=0, UNLOADED=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 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] [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 ++ 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__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, 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=0, 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] [L192] COND TRUE PagingReferenceCount == 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__ArcName=0, disketteExtension__ArcName__Length=0, disketteExtension__FloppyThread=0, 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=0, 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] [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=0, 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=0, irpSp=0, 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=0, 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=0, irpSp=0, 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=0, 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=0, irpSp=0, 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=0, 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=0, irpSp=0, 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=0, 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=0, irpSp=0, 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=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__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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=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, FlQueueIrpToThread(Irp, disketteExtension)=259, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=0, Irp__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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=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__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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=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__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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)=0, \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)=0, \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=0, 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)=0, \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=0, 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)=0, \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=0, 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) 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)=0, \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=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=1, UNLOADED=0, WaitMode=0, WaitReason=0] [L1095] return (-1073741823); 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)=0, \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, \result=-1073741823, 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=0, PagingMutex=0, PagingReferenceCount=1, pended=1, s=1, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, Timeout=0, tmp_ndt_12=1, UNLOADED=0, WaitMode=0, WaitReason=0] [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=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__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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 FALSE !(disketteExtension__FloppyThread != 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__Tail__Overlay__CurrentStackLocation=0, irpSp=0, 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] [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=0, irpSp=0, 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=0, irpSp=0, 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=1, irpSp=0, 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 TRUE tmp_ndt_10 == 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)=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, tmp_ndt_10=0, UNLOADED=0] [L999] returnVal2 = 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)=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, returnVal2=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, 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, 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=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, 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, 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=0, s=3, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, 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, 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=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [L1035] return (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, \result=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, returnVal2=0, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, tmp_ndt_10=0, UNLOADED=0] [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)=0, IoGetConfigurationInformation__FloppyCount=0, IPC=7, Irp=0, Irp__CurrentLocation=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, 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=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L280] ntStatus = IofCallDriver(disketteExtension__TargetObject, Irp) [L426] PagingReferenceCount -- 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=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=0] [L427] COND TRUE PagingReferenceCount == 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=1, Irp__IoStatus__Status=0, Irp__Tail__Overlay__CurrentStackLocation=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, PagingMutex=0, PagingReferenceCount=0, pended=1, s=4, setEventCalled=0, SKIP1=3, SKIP2=4, Suspended=0, UNLOADED=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=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=1, irpSp=0, irpSp__MinorFunction=5, KernelMode=0, lowerDriverReturn=0, MaximumInterfaceType=0, MOUNTDEV_MOUNTED_DEVICE_GUID=0, MPR1=5, MPR3=6, myStatus=0, NP=1, ntStatus=0, 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)=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=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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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] [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=0, 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=0, 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, 393 locations, 1 error locations. UNSAFE Result, 27.3s OverallTime, 58 OverallIterations, 1 TraceHistogramMax, 19.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25922 SDtfs, 13830 SDslu, 78966 SDs, 0 SdLazy, 15478 SolverSat, 2422 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 146 SyntacticMatches, 7 SemanticMatches, 359 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=929occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 57 MinimizatonAttempts, 1814 StatesRemovedByMinimization, 38 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 3306 NumberOfCodeBlocks, 3306 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 3164 ConstructedInterpolants, 0 QuantifiedInterpolants, 384193 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...