/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 09:12:17,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 09:12:17,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 09:12:17,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 09:12:17,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 09:12:17,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 09:12:17,052 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 09:12:17,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 09:12:17,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 09:12:17,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 09:12:17,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 09:12:17,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 09:12:17,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 09:12:17,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 09:12:17,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 09:12:17,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 09:12:17,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 09:12:17,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 09:12:17,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 09:12:17,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 09:12:17,077 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 09:12:17,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 09:12:17,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 09:12:17,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 09:12:17,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 09:12:17,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 09:12:17,088 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 09:12:17,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 09:12:17,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 09:12:17,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 09:12:17,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 09:12:17,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 09:12:17,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 09:12:17,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 09:12:17,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 09:12:17,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 09:12:17,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 09:12:17,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 09:12:17,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 09:12:17,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 09:12:17,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 09:12:17,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 09:12:17,126 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 09:12:17,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 09:12:17,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 09:12:17,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 09:12:17,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 09:12:17,128 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 09:12:17,128 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 09:12:17,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 09:12:17,128 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 09:12:17,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 09:12:17,129 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 09:12:17,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 09:12:17,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 09:12:17,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 09:12:17,129 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 09:12:17,129 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 09:12:17,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 09:12:17,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 09:12:17,130 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 09:12:17,130 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 09:12:17,130 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 09:12:17,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 09:12:17,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 09:12:17,132 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 09:12:17,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 09:12:17,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:12:17,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 09:12:17,132 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 09:12:17,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 09:12:17,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 09:12:17,133 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 09:12:17,133 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 09:12:17,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 09:12:17,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 09:12:17,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 09:12:17,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 09:12:17,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 09:12:17,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 09:12:17,379 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 09:12:17,380 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 09:12:17,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2023-04-01 09:12:18,470 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 09:12:18,916 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 09:12:18,916 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2023-04-01 09:12:18,965 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f1ed617/627801a846cd4d8792955eff9019c852/FLAGe74d7df5f [2023-04-01 09:12:18,980 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33f1ed617/627801a846cd4d8792955eff9019c852 [2023-04-01 09:12:18,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 09:12:18,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 09:12:18,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 09:12:18,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 09:12:18,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 09:12:18,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:12:18" (1/1) ... [2023-04-01 09:12:18,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e36371 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:18, skipping insertion in model container [2023-04-01 09:12:18,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:12:18" (1/1) ... [2023-04-01 09:12:18,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 09:12:19,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 09:12:19,685 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2023-04-01 09:12:20,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:12:20,134 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 09:12:20,197 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c[76734,76747] [2023-04-01 09:12:20,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:12:20,458 WARN L667 CHandler]: The function swprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 09:12:20,458 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 09:12:20,464 INFO L208 MainTranslator]: Completed translation [2023-04-01 09:12:20,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20 WrapperNode [2023-04-01 09:12:20,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 09:12:20,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 09:12:20,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 09:12:20,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 09:12:20,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 09:12:20,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 09:12:20,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 09:12:20,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 09:12:20,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (1/1) ... [2023-04-01 09:12:20,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:12:20,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 09:12:20,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 09:12:20,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 09:12:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 09:12:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 09:12:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 09:12:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2023-04-01 09:12:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-04-01 09:12:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2023-04-01 09:12:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure DriverEntry [2023-04-01 09:12:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyUnload [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyAddDevice [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FlConfigCallBack [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPower [2023-04-01 09:12:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyReadWrite [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlInterpretError [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFinishOperation [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlStartDrive [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlDatarateSpecifyConfigure [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlRecalibrateDrive [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlDetermineMediaType [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAllocateIoBuffer [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFreeIoBuffer [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyThread [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlConsolidateMediaTypeWithBootSector [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckBootSector [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlReadWriteTrack [2023-04-01 09:12:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure FlReadWrite [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFormat [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlIssueCommand [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlInitializeControllerHardware [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FlHdbit [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCancelQueuedRequest [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAcquireFastMutex [2023-04-01 09:12:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ExReleaseFastMutex [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ExFreePool [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertHeadList [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedRemoveHeadList [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateMdl [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAttachDeviceToDeviceStack [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildAsynchronousFsdRequest [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateDevice [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateSymbolicLink [2023-04-01 09:12:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteDevice [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDetachDevice [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeIrp [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeMdl [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReleaseCancelSpinLock [2023-04-01 09:12:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetHardErrorOrVerifyDevice [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeAcquireSpinLockRaiseToDpc [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeDelayExecutionThread [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeEvent [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSemaphore [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSpinLock [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeReleaseSemaphore [2023-04-01 09:12:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure MmAllocateContiguousMemory [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure MmFreeContiguousMemory [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure MmMapLockedPagesSpecifyCache [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure MmPageEntireDriver [2023-04-01 09:12:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure MmResetDriverPaging [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure MmUnlockPages [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ObfDereferenceObject [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure PoStartNextPowerIrp [2023-04-01 09:12:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure PsTerminateSystemThread [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlAnsiStringToUnicodeString [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareMemory [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCopyUnicodeString [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlDeleteRegistryValue [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlFreeUnicodeString [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitString [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitUnicodeString [2023-04-01 09:12:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2023-04-01 09:12:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2023-04-01 09:12:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 09:12:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 09:12:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 09:12:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-01 09:12:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure swprintf [2023-04-01 09:12:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 09:12:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 09:12:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-01 09:12:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2023-04-01 09:12:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure RtlDeleteRegistryValue [2023-04-01 09:12:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitString [2023-04-01 09:12:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitUnicodeString [2023-04-01 09:12:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure RtlAnsiStringToUnicodeString [2023-04-01 09:12:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCopyUnicodeString [2023-04-01 09:12:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure RtlFreeUnicodeString [2023-04-01 09:12:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareMemory [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeEvent [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSemaphore [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeReleaseSemaphore [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeDelayExecutionThread [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSpinLock [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure ExFreePool [2023-04-01 09:12:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure ExAcquireFastMutex [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ExReleaseFastMutex [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertHeadList [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedRemoveHeadList [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmUnlockPages [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmMapLockedPagesSpecifyCache [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmAllocateContiguousMemory [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmFreeContiguousMemory [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmResetDriverPaging [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure MmPageEntireDriver [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure PsTerminateSystemThread [2023-04-01 09:12:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateMdl [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoAttachDeviceToDeviceStack [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildAsynchronousFsdRequest [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateDevice [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateSymbolicLink [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteDevice [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoDetachDevice [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeIrp [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeMdl [2023-04-01 09:12:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoReleaseCancelSpinLock [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetHardErrorOrVerifyDevice [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure PoStartNextPowerIrp [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure ObfDereferenceObject [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure DriverEntry [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyUnload [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure FlConfigCallBack [2023-04-01 09:12:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure FlInitializeControllerHardware [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyReadWrite [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlRecalibrateDrive [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlDatarateSpecifyConfigure [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlStartDrive [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlFinishOperation [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlDetermineMediaType [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyThread [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlReadWrite [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlFormat [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlIssueCommand [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2023-04-01 09:12:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlInterpretError [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlAllocateIoBuffer [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlFreeIoBuffer [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlConsolidateMediaTypeWithBootSector [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckBootSector [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlReadWriteTrack [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyAddDevice [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPower [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2023-04-01 09:12:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCancelQueuedRequest [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure FlHdbit [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 09:12:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure KeAcquireSpinLockRaiseToDpc [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 09:12:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 09:12:21,618 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 09:12:21,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 09:12:21,662 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:21,716 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:21,716 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:21,716 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:21,723 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:21,724 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,458 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,465 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,465 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,466 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,476 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,476 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,481 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,490 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,491 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,548 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,557 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,559 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,562 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,583 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,583 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,583 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,594 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,594 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,647 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,707 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2023-04-01 09:12:24,708 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2023-04-01 09:12:24,786 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,793 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,794 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,794 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,798 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,799 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,799 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,806 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,806 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,817 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,822 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,822 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:24,823 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:24,827 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:24,827 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:31,962 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:31,978 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-04-01 09:12:31,978 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-04-01 09:12:32,047 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:32,477 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-04-01 09:12:32,478 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-04-01 09:12:32,952 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:32,956 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:32,956 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:33,072 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:33,108 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-04-01 09:12:33,109 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-04-01 09:12:33,111 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:33,255 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-04-01 09:12:33,256 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-04-01 09:12:33,256 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:33,310 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-04-01 09:12:33,311 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-04-01 09:12:44,418 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:44,422 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:44,423 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:44,567 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:44,571 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:44,571 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:44,592 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:46,937 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2023-04-01 09:12:46,937 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2023-04-01 09:12:46,981 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,232 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2023-04-01 09:12:47,232 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2023-04-01 09:12:47,234 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,249 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-04-01 09:12:47,249 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-04-01 09:12:47,249 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,285 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2023-04-01 09:12:47,285 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2023-04-01 09:12:47,288 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,297 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-04-01 09:12:47,297 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-04-01 09:12:47,338 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,342 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:47,343 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:47,358 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,363 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-01 09:12:47,363 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-01 09:12:47,364 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:47,444 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2023-04-01 09:12:47,445 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2023-04-01 09:12:47,512 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-01 09:12:49,992 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2023-04-01 09:12:49,992 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2023-04-01 09:12:50,051 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 09:12:52,133 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 09:12:52,133 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-04-01 09:12:52,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:12:52 BoogieIcfgContainer [2023-04-01 09:12:52,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 09:12:52,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 09:12:52,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 09:12:52,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 09:12:52,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:12:18" (1/3) ... [2023-04-01 09:12:52,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22da91e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:12:52, skipping insertion in model container [2023-04-01 09:12:52,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:12:20" (2/3) ... [2023-04-01 09:12:52,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22da91e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:12:52, skipping insertion in model container [2023-04-01 09:12:52,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:12:52" (3/3) ... [2023-04-01 09:12:52,146 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-1.c [2023-04-01 09:12:52,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 09:12:52,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 09:12:52,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 09:12:52,228 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ef54e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 09:12:52,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 09:12:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 1105 states, 807 states have (on average 1.5154894671623296) internal successors, (1223), 848 states have internal predecessors, (1223), 221 states have call successors, (221), 72 states have call predecessors, (221), 72 states have return successors, (221), 215 states have call predecessors, (221), 221 states have call successors, (221) [2023-04-01 09:12:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-04-01 09:12:52,245 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:12:52,245 INFO L195 NwaCegarLoop]: 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] [2023-04-01 09:12:52,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 09:12:52,249 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 09:12:52,250 INFO L85 PathProgramCache]: Analyzing trace with hash 249878663, now seen corresponding path program 1 times [2023-04-01 09:12:52,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:12:52,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644000764] [2023-04-01 09:12:52,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:12:52,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:12:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 09:12:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 09:12:53,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 09:12:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644000764] [2023-04-01 09:12:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644000764] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 09:12:53,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 09:12:53,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 09:12:53,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053511272] [2023-04-01 09:12:53,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 09:12:53,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 09:12:53,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 09:12:53,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 09:12:53,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 09:12:53,172 INFO L87 Difference]: Start difference. First operand has 1105 states, 807 states have (on average 1.5154894671623296) internal successors, (1223), 848 states have internal predecessors, (1223), 221 states have call successors, (221), 72 states have call predecessors, (221), 72 states have return successors, (221), 215 states have call predecessors, (221), 221 states have call successors, (221) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 09:12:56,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:12:58,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:00,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:00,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 09:13:00,615 INFO L93 Difference]: Finished difference Result 1234 states and 1884 transitions. [2023-04-01 09:13:00,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 09:13:00,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 34 [2023-04-01 09:13:00,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 09:13:00,634 INFO L225 Difference]: With dead ends: 1234 [2023-04-01 09:13:00,634 INFO L226 Difference]: Without dead ends: 795 [2023-04-01 09:13:00,640 INFO L412 NwaCegarLoop]: 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 [2023-04-01 09:13:00,643 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 520 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-01 09:13:00,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1168 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 255 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2023-04-01 09:13:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-04-01 09:13:00,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 777. [2023-04-01 09:13:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 549 states have (on average 1.4444444444444444) internal successors, (793), 579 states have internal predecessors, (793), 157 states have call successors, (157), 75 states have call predecessors, (157), 70 states have return successors, (154), 132 states have call predecessors, (154), 141 states have call successors, (154) [2023-04-01 09:13:00,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1104 transitions. [2023-04-01 09:13:00,747 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1104 transitions. Word has length 34 [2023-04-01 09:13:00,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 09:13:00,748 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1104 transitions. [2023-04-01 09:13:00,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-01 09:13:00,748 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1104 transitions. [2023-04-01 09:13:00,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-04-01 09:13:00,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:13:00,750 INFO L195 NwaCegarLoop]: 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] [2023-04-01 09:13:00,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 09:13:00,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 09:13:00,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 09:13:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash -231891252, now seen corresponding path program 1 times [2023-04-01 09:13:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:13:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189276154] [2023-04-01 09:13:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:13:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:13:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 09:13:01,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 09:13:01,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 09:13:01,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189276154] [2023-04-01 09:13:01,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189276154] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 09:13:01,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 09:13:01,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 09:13:01,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038551251] [2023-04-01 09:13:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 09:13:01,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 09:13:01,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 09:13:01,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 09:13:01,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 09:13:01,104 INFO L87 Difference]: Start difference. First operand 777 states and 1104 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 09:13:04,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:06,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:06,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 09:13:06,217 INFO L93 Difference]: Finished difference Result 799 states and 1130 transitions. [2023-04-01 09:13:06,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 09:13:06,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2023-04-01 09:13:06,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 09:13:06,223 INFO L225 Difference]: With dead ends: 799 [2023-04-01 09:13:06,223 INFO L226 Difference]: Without dead ends: 782 [2023-04-01 09:13:06,224 INFO L412 NwaCegarLoop]: 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 [2023-04-01 09:13:06,225 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 20 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1168 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-01 09:13:06,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1168 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2023-04-01 09:13:06,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2023-04-01 09:13:06,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2023-04-01 09:13:06,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 782 states, 552 states have (on average 1.4420289855072463) internal successors, (796), 582 states have internal predecessors, (796), 157 states have call successors, (157), 77 states have call predecessors, (157), 72 states have return successors, (154), 132 states have call predecessors, (154), 141 states have call successors, (154) [2023-04-01 09:13:06,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1107 transitions. [2023-04-01 09:13:06,264 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1107 transitions. Word has length 31 [2023-04-01 09:13:06,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 09:13:06,264 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1107 transitions. [2023-04-01 09:13:06,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 09:13:06,265 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1107 transitions. [2023-04-01 09:13:06,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-01 09:13:06,267 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:13:06,267 INFO L195 NwaCegarLoop]: 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] [2023-04-01 09:13:06,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 09:13:06,267 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 09:13:06,267 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 09:13:06,268 INFO L85 PathProgramCache]: Analyzing trace with hash 907673559, now seen corresponding path program 1 times [2023-04-01 09:13:06,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:13:06,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260832104] [2023-04-01 09:13:06,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:13:06,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:13:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 09:13:06,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 09:13:06,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 09:13:06,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260832104] [2023-04-01 09:13:06,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260832104] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 09:13:06,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 09:13:06,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 09:13:06,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053658704] [2023-04-01 09:13:06,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 09:13:06,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 09:13:06,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 09:13:06,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 09:13:06,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 09:13:06,809 INFO L87 Difference]: Start difference. First operand 782 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 09:13:09,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:10,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 09:13:10,035 INFO L93 Difference]: Finished difference Result 1307 states and 1893 transitions. [2023-04-01 09:13:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 09:13:10,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 44 [2023-04-01 09:13:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 09:13:10,043 INFO L225 Difference]: With dead ends: 1307 [2023-04-01 09:13:10,044 INFO L226 Difference]: Without dead ends: 1289 [2023-04-01 09:13:10,044 INFO L412 NwaCegarLoop]: 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 [2023-04-01 09:13:10,046 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 644 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-04-01 09:13:10,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1024 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2023-04-01 09:13:10,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-04-01 09:13:10,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1263. [2023-04-01 09:13:10,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1263 states, 909 states have (on average 1.4642464246424642) internal successors, (1331), 951 states have internal predecessors, (1331), 238 states have call successors, (238), 118 states have call predecessors, (238), 115 states have return successors, (266), 209 states have call predecessors, (266), 222 states have call successors, (266) [2023-04-01 09:13:10,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1835 transitions. [2023-04-01 09:13:10,104 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1835 transitions. Word has length 44 [2023-04-01 09:13:10,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 09:13:10,105 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1835 transitions. [2023-04-01 09:13:10,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 09:13:10,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1835 transitions. [2023-04-01 09:13:10,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-01 09:13:10,107 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:13:10,107 INFO L195 NwaCegarLoop]: 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] [2023-04-01 09:13:10,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 09:13:10,108 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 09:13:10,108 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 09:13:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash 351296150, now seen corresponding path program 1 times [2023-04-01 09:13:10,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:13:10,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572181265] [2023-04-01 09:13:10,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:13:10,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:13:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 09:13:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 09:13:10,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 09:13:10,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572181265] [2023-04-01 09:13:10,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572181265] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 09:13:10,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 09:13:10,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 09:13:10,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970443110] [2023-04-01 09:13:10,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 09:13:10,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 09:13:10,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 09:13:10,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 09:13:10,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 09:13:10,640 INFO L87 Difference]: Start difference. First operand 1263 states and 1835 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 09:13:13,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:15,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:19,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 09:13:19,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 09:13:19,171 INFO L93 Difference]: Finished difference Result 3362 states and 4966 transitions. [2023-04-01 09:13:19,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 09:13:19,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 46 [2023-04-01 09:13:19,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 09:13:19,184 INFO L225 Difference]: With dead ends: 3362 [2023-04-01 09:13:19,184 INFO L226 Difference]: Without dead ends: 2279 [2023-04-01 09:13:19,189 INFO L412 NwaCegarLoop]: 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 [2023-04-01 09:13:19,190 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 634 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-04-01 09:13:19,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1150 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 3 Unknown, 0 Unchecked, 8.4s Time] [2023-04-01 09:13:19,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2023-04-01 09:13:19,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2231. [2023-04-01 09:13:19,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 1629 states have (on average 1.4769797421731123) internal successors, (2406), 1695 states have internal predecessors, (2406), 401 states have call successors, (401), 204 states have call predecessors, (401), 200 states have return successors, (490), 354 states have call predecessors, (490), 387 states have call successors, (490) [2023-04-01 09:13:19,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3297 transitions. [2023-04-01 09:13:19,290 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3297 transitions. Word has length 46 [2023-04-01 09:13:19,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 09:13:19,292 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 3297 transitions. [2023-04-01 09:13:19,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-04-01 09:13:19,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3297 transitions. [2023-04-01 09:13:19,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-01 09:13:19,295 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:13:19,295 INFO L195 NwaCegarLoop]: 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] [2023-04-01 09:13:19,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 09:13:19,295 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 09:13:19,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 09:13:19,296 INFO L85 PathProgramCache]: Analyzing trace with hash 252148383, now seen corresponding path program 1 times [2023-04-01 09:13:19,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:13:19,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410970318] [2023-04-01 09:13:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:13:19,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:13:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 09:13:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 09:13:19,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 09:13:19,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410970318] [2023-04-01 09:13:19,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410970318] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 09:13:19,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 09:13:19,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 09:13:19,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411017712] [2023-04-01 09:13:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 09:13:19,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 09:13:19,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 09:13:19,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 09:13:19,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 09:13:19,528 INFO L87 Difference]: Start difference. First operand 2231 states and 3297 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)