/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 OctagonDomain -i ../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 15:52:01,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 15:52:01,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 15:52:01,044 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 15:52:01,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 15:52:01,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 15:52:01,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 15:52:01,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 15:52:01,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 15:52:01,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 15:52:01,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 15:52:01,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 15:52:01,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 15:52:01,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 15:52:01,051 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 15:52:01,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 15:52:01,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 15:52:01,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 15:52:01,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 15:52:01,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 15:52:01,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 15:52:01,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 15:52:01,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 15:52:01,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 15:52:01,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 15:52:01,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 15:52:01,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 15:52:01,062 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 15:52:01,063 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 15:52:01,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 15:52:01,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 15:52:01,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 15:52:01,065 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 15:52:01,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 15:52:01,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 15:52:01,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 15:52:01,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 15:52:01,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 15:52:01,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 15:52:01,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 15:52:01,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 15:52:01,072 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 [2023-04-02 15:52:01,085 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 15:52:01,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 15:52:01,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 15:52:01,086 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 15:52:01,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 15:52:01,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 15:52:01,087 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 15:52:01,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 15:52:01,087 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 15:52:01,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 15:52:01,088 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 15:52:01,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 15:52:01,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 15:52:01,089 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 15:52:01,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 15:52:01,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 15:52:01,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 15:52:01,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 15:52:01,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 15:52:01,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 15:52:01,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 15:52:01,352 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 15:52:01,352 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 15:52:01,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2023-04-02 15:52:02,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 15:52:02,622 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 15:52:02,622 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers/floppy.i.cil-1.c [2023-04-02 15:52:02,649 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74304c920/5ed1378fa87c4df99bf3a45f34b3b106/FLAG1ccb4bab8 [2023-04-02 15:52:02,900 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74304c920/5ed1378fa87c4df99bf3a45f34b3b106 [2023-04-02 15:52:02,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 15:52:02,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 15:52:02,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 15:52:02,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 15:52:02,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 15:52:02,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:52:02" (1/1) ... [2023-04-02 15:52:02,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16a45fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:02, skipping insertion in model container [2023-04-02 15:52:02,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:52:02" (1/1) ... [2023-04-02 15:52:02,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 15:52:02,995 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 15:52:03,445 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] [2023-04-02 15:52:03,778 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 15:52:03,828 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 15:52:03,855 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] [2023-04-02 15:52:04,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 15:52:04,159 WARN L667 CHandler]: The function swprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 15:52:04,159 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 15:52:04,164 INFO L208 MainTranslator]: Completed translation [2023-04-02 15:52:04,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04 WrapperNode [2023-04-02 15:52:04,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 15:52:04,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 15:52:04,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 15:52:04,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 15:52:04,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,415 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 15:52:04,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 15:52:04,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 15:52:04,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 15:52:04,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (1/1) ... [2023-04-02 15:52:04,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 15:52:04,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 15:52:04,466 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) [2023-04-02 15:52:04,468 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 [2023-04-02 15:52:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 15:52:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 15:52:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 15:52:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure DriverEntry [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyUnload [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyAddDevice [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FlConfigCallBack [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAcpiConfigureFloppy [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnp [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyStartDevice [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPower [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyReadWrite [2023-04-02 15:52:04,492 INFO L138 BoogieDeclarations]: Found implementation of procedure FlInterpretError [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFinishOperation [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlStartDrive [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlDatarateSpecifyConfigure [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlRecalibrateDrive [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlDetermineMediaType [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlAllocateIoBuffer [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFreeIoBuffer [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyThread [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlConsolidateMediaTypeWithBootSector [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckBootSector [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlReadWriteTrack [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlReadWrite [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFormat [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlCheckFormatParameters [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlIssueCommand [2023-04-02 15:52:04,493 INFO L138 BoogieDeclarations]: Found implementation of procedure FlInitializeControllerHardware [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure FlHdbit [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCancelQueuedRequest [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAcquireFastMutex [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExReleaseFastMutex [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExFreePool [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertHeadList [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedRemoveHeadList [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateMdl [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAttachDeviceToDeviceStack [2023-04-02 15:52:04,494 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildAsynchronousFsdRequest [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateDevice [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateSymbolicLink [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteDevice [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDetachDevice [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeIrp [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeMdl [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReleaseCancelSpinLock [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetHardErrorOrVerifyDevice [2023-04-02 15:52:04,495 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeAcquireSpinLockRaiseToDpc [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeDelayExecutionThread [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeEvent [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSemaphore [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSpinLock [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeReleaseSemaphore [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmAllocateContiguousMemory [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmFreeContiguousMemory [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmMapLockedPagesSpecifyCache [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmPageEntireDriver [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmResetDriverPaging [2023-04-02 15:52:04,496 INFO L138 BoogieDeclarations]: Found implementation of procedure MmUnlockPages [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ObfDereferenceObject [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure PoStartNextPowerIrp [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure PsTerminateSystemThread [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlAnsiStringToUnicodeString [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareMemory [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCopyUnicodeString [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlDeleteRegistryValue [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlFreeUnicodeString [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitString [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitUnicodeString [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2023-04-02 15:52:04,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2023-04-02 15:52:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-02 15:52:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 15:52:04,498 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure swprintf [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-02 15:52:04,498 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlDeleteRegistryValue [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitString [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitUnicodeString [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlAnsiStringToUnicodeString [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCopyUnicodeString [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlFreeUnicodeString [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareMemory [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeEvent [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSemaphore [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure KeReleaseSemaphore [2023-04-02 15:52:04,499 INFO L130 BoogieDeclarations]: Found specification of procedure KeDelayExecutionThread [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSpinLock [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExFreePool [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExAcquireFastMutex [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExReleaseFastMutex [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertHeadList [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedRemoveHeadList [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmUnlockPages [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmMapLockedPagesSpecifyCache [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmAllocateContiguousMemory [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmFreeContiguousMemory [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmResetDriverPaging [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure MmPageEntireDriver [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2023-04-02 15:52:04,500 INFO L130 BoogieDeclarations]: Found specification of procedure PsTerminateSystemThread [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateMdl [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoAttachDeviceToDeviceStack [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildAsynchronousFsdRequest [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateDevice [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateSymbolicLink [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteDevice [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoDetachDevice [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeIrp [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeMdl [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoReleaseCancelSpinLock [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetHardErrorOrVerifyDevice [2023-04-02 15:52:04,501 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure PoStartNextPowerIrp [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ObfDereferenceObject [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure DriverEntry [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyUnload [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlConfigCallBack [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlInitializeControllerHardware [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyReadWrite [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlRecalibrateDrive [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlDatarateSpecifyConfigure [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlStartDrive [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlFinishOperation [2023-04-02 15:52:04,502 INFO L130 BoogieDeclarations]: Found specification of procedure FlDetermineMediaType [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyThread [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlReadWrite [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlFormat [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlIssueCommand [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckFormatParameters [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlInterpretError [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlAllocateIoBuffer [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlFreeIoBuffer [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlConsolidateMediaTypeWithBootSector [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlCheckBootSector [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlReadWriteTrack [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyAddDevice [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnp [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPower [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2023-04-02 15:52:04,503 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyStartDevice [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCancelQueuedRequest [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure FlAcpiConfigureFloppy [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure FlHdbit [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-04-02 15:52:04,504 INFO L130 BoogieDeclarations]: Found specification of procedure KeAcquireSpinLockRaiseToDpc [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 15:52:04,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 15:52:05,049 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 15:52:05,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 15:52:05,088 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:05,129 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:05,129 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:05,129 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:05,139 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:05,139 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,720 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,725 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,725 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,726 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,732 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,732 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,736 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,743 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,743 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,796 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,801 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,802 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,802 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,811 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,811 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,811 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,823 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,824 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,864 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,912 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2023-04-02 15:52:07,912 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2023-04-02 15:52:07,972 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,977 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,977 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,978 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,983 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,983 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,983 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:07,989 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:07,989 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:07,999 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:08,003 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:08,004 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:08,004 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:08,008 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:08,008 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:13,053 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,066 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-04-02 15:52:13,066 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-04-02 15:52:13,105 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,397 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-04-02 15:52:13,397 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-04-02 15:52:13,691 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,694 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:13,694 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:13,774 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,797 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-04-02 15:52:13,797 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-04-02 15:52:13,799 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,906 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2023-04-02 15:52:13,906 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2023-04-02 15:52:13,907 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:13,948 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2023-04-02 15:52:13,948 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2023-04-02 15:52:24,760 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:24,765 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:24,765 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:24,890 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:24,894 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:24,894 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:24,909 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,513 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2023-04-02 15:52:26,513 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2023-04-02 15:52:26,552 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,758 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2023-04-02 15:52:26,758 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2023-04-02 15:52:26,759 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,771 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-04-02 15:52:26,772 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-04-02 15:52:26,772 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,800 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2023-04-02 15:52:26,800 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2023-04-02 15:52:26,803 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,811 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-04-02 15:52:26,811 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-04-02 15:52:26,846 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,850 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:26,850 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:26,865 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,869 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-04-02 15:52:26,869 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-04-02 15:52:26,869 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:26,952 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume !false; [2023-04-02 15:52:26,952 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##45: assume false; [2023-04-02 15:52:27,007 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-04-02 15:52:29,356 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume !false; [2023-04-02 15:52:29,356 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##13: assume false; [2023-04-02 15:52:29,400 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 15:52:30,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 15:52:30,963 INFO L302 CfgBuilder]: Removed 22 assume(true) statements. [2023-04-02 15:52:30,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:52:30 BoogieIcfgContainer [2023-04-02 15:52:30,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 15:52:30,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 15:52:30,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 15:52:30,972 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 15:52:30,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:52:02" (1/3) ... [2023-04-02 15:52:30,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42d040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:52:30, skipping insertion in model container [2023-04-02 15:52:30,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:52:04" (2/3) ... [2023-04-02 15:52:30,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e42d040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:52:30, skipping insertion in model container [2023-04-02 15:52:30,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:52:30" (3/3) ... [2023-04-02 15:52:30,974 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-1.c [2023-04-02 15:52:30,986 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 15:52:30,987 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 15:52:31,051 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 15:52:31,056 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;@442f4e4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 15:52:31,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 15:52:31,064 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) [2023-04-02 15:52:31,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-04-02 15:52:31,071 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:52:31,072 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] [2023-04-02 15:52:31,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:52:31,077 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:52:31,077 INFO L85 PathProgramCache]: Analyzing trace with hash 249878663, now seen corresponding path program 1 times [2023-04-02 15:52:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:52:31,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587615692] [2023-04-02 15:52:31,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:52:31,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:52:31,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:52:31,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:52:31,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:52:31,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587615692] [2023-04-02 15:52:31,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587615692] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:52:31,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:52:31,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:52:31,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299581076] [2023-04-02 15:52:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:52:31,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:52:31,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:52:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:52:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:52:31,790 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) [2023-04-02 15:52:34,307 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 [] [2023-04-02 15:52:36,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:38,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:38,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:52:38,826 INFO L93 Difference]: Finished difference Result 1234 states and 1884 transitions. [2023-04-02 15:52:38,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:52:38,828 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 [2023-04-02 15:52:38,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:52:38,839 INFO L225 Difference]: With dead ends: 1234 [2023-04-02 15:52:38,840 INFO L226 Difference]: Without dead ends: 795 [2023-04-02 15:52:38,854 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 [2023-04-02 15:52:38,856 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 520 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s 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, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 15:52:38,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 1168 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 255 Invalid, 3 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 15:52:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2023-04-02 15:52:38,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 777. [2023-04-02 15:52:38,937 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) [2023-04-02 15:52:38,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 1104 transitions. [2023-04-02 15:52:38,943 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 1104 transitions. Word has length 34 [2023-04-02 15:52:38,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:52:38,943 INFO L495 AbstractCegarLoop]: Abstraction has 777 states and 1104 transitions. [2023-04-02 15:52:38,943 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) [2023-04-02 15:52:38,943 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 1104 transitions. [2023-04-02 15:52:38,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-04-02 15:52:38,944 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:52:38,944 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] [2023-04-02 15:52:38,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 15:52:38,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:52:38,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:52:38,945 INFO L85 PathProgramCache]: Analyzing trace with hash -231891252, now seen corresponding path program 1 times [2023-04-02 15:52:38,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:52:38,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732914105] [2023-04-02 15:52:38,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:52:38,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:52:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:52:39,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:52:39,346 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:52:39,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732914105] [2023-04-02 15:52:39,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732914105] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:52:39,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:52:39,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:52:39,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668319745] [2023-04-02 15:52:39,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:52:39,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:52:39,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:52:39,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:52:39,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:52:39,350 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) [2023-04-02 15:52:42,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:44,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:44,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:52:44,325 INFO L93 Difference]: Finished difference Result 799 states and 1130 transitions. [2023-04-02 15:52:44,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:52:44,325 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 [2023-04-02 15:52:44,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:52:44,329 INFO L225 Difference]: With dead ends: 799 [2023-04-02 15:52:44,329 INFO L226 Difference]: Without dead ends: 782 [2023-04-02 15:52:44,330 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 [2023-04-02 15:52:44,331 INFO L413 NwaCegarLoop]: 613 mSDtfsCounter, 20 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 15:52:44,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1168 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 15:52:44,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2023-04-02 15:52:44,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 782. [2023-04-02 15:52:44,364 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) [2023-04-02 15:52:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1107 transitions. [2023-04-02 15:52:44,370 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1107 transitions. Word has length 31 [2023-04-02 15:52:44,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:52:44,371 INFO L495 AbstractCegarLoop]: Abstraction has 782 states and 1107 transitions. [2023-04-02 15:52:44,371 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) [2023-04-02 15:52:44,371 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1107 transitions. [2023-04-02 15:52:44,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-02 15:52:44,376 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:52:44,376 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] [2023-04-02 15:52:44,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 15:52:44,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:52:44,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:52:44,376 INFO L85 PathProgramCache]: Analyzing trace with hash 907673559, now seen corresponding path program 1 times [2023-04-02 15:52:44,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:52:44,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357621146] [2023-04-02 15:52:44,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:52:44,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:52:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:52:44,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:52:44,735 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:52:44,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357621146] [2023-04-02 15:52:44,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357621146] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:52:44,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:52:44,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:52:44,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622386867] [2023-04-02 15:52:44,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:52:44,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:52:44,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:52:44,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:52:44,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:52:44,737 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) [2023-04-02 15:52:47,058 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 [] [2023-04-02 15:52:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:52:47,393 INFO L93 Difference]: Finished difference Result 1307 states and 1893 transitions. [2023-04-02 15:52:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:52:47,393 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 [2023-04-02 15:52:47,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:52:47,398 INFO L225 Difference]: With dead ends: 1307 [2023-04-02 15:52:47,398 INFO L226 Difference]: Without dead ends: 1289 [2023-04-02 15:52:47,399 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 [2023-04-02 15:52:47,400 INFO L413 NwaCegarLoop]: 626 mSDtfsCounter, 644 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.6s IncrementalHoareTripleChecker+Time [2023-04-02 15:52:47,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1024 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2023-04-02 15:52:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-04-02 15:52:47,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1263. [2023-04-02 15:52:47,430 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) [2023-04-02 15:52:47,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1835 transitions. [2023-04-02 15:52:47,435 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1835 transitions. Word has length 44 [2023-04-02 15:52:47,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:52:47,435 INFO L495 AbstractCegarLoop]: Abstraction has 1263 states and 1835 transitions. [2023-04-02 15:52:47,435 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) [2023-04-02 15:52:47,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1835 transitions. [2023-04-02 15:52:47,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 15:52:47,436 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:52:47,436 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] [2023-04-02 15:52:47,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 15:52:47,437 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:52:47,437 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:52:47,437 INFO L85 PathProgramCache]: Analyzing trace with hash 351296150, now seen corresponding path program 1 times [2023-04-02 15:52:47,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:52:47,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870786164] [2023-04-02 15:52:47,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:52:47,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:52:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:52:47,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:52:47,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:52:47,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870786164] [2023-04-02 15:52:47,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870786164] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:52:47,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:52:47,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:52:47,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693148449] [2023-04-02 15:52:47,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:52:47,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:52:47,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:52:47,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:52:47,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:52:47,910 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) [2023-04-02 15:52:50,360 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 [] [2023-04-02 15:52:52,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:54,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:52:54,786 INFO L93 Difference]: Finished difference Result 3362 states and 4966 transitions. [2023-04-02 15:52:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:52:54,787 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 [2023-04-02 15:52:54,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:52:54,795 INFO L225 Difference]: With dead ends: 3362 [2023-04-02 15:52:54,795 INFO L226 Difference]: Without dead ends: 2279 [2023-04-02 15:52:54,798 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 [2023-04-02 15:52:54,799 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 634 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s 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, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 15:52:54,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1150 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 3 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 15:52:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2023-04-02 15:52:54,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2231. [2023-04-02 15:52:54,854 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) [2023-04-02 15:52:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 3297 transitions. [2023-04-02 15:52:54,863 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 3297 transitions. Word has length 46 [2023-04-02 15:52:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:52:54,863 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 3297 transitions. [2023-04-02 15:52:54,863 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) [2023-04-02 15:52:54,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 3297 transitions. [2023-04-02 15:52:54,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-02 15:52:54,864 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:52:54,864 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] [2023-04-02 15:52:54,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 15:52:54,864 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:52:54,865 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:52:54,865 INFO L85 PathProgramCache]: Analyzing trace with hash 252148383, now seen corresponding path program 1 times [2023-04-02 15:52:54,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:52:54,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561573401] [2023-04-02 15:52:54,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:52:54,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:52:54,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:52:55,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:52:55,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:52:55,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561573401] [2023-04-02 15:52:55,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561573401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:52:55,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:52:55,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:52:55,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805372304] [2023-04-02 15:52:55,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:52:55,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:52:55,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:52:55,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:52:55,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:52:55,016 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) [2023-04-02 15:52:57,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:52:59,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:01,740 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 [] [2023-04-02 15:53:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:02,219 INFO L93 Difference]: Finished difference Result 3198 states and 4781 transitions. [2023-04-02 15:53:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:53:02,220 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 45 [2023-04-02 15:53:02,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:02,232 INFO L225 Difference]: With dead ends: 3198 [2023-04-02 15:53:02,232 INFO L226 Difference]: Without dead ends: 3195 [2023-04-02 15:53:02,233 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 [2023-04-02 15:53:02,234 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 419 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:02,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1506 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 278 Invalid, 3 Unknown, 0 Unchecked, 7.1s Time] [2023-04-02 15:53:02,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2023-04-02 15:53:02,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 3073. [2023-04-02 15:53:02,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3073 states, 2274 states have (on average 1.4929639401934915) internal successors, (3395), 2349 states have internal predecessors, (3395), 519 states have call successors, (519), 282 states have call predecessors, (519), 279 states have return successors, (671), 464 states have call predecessors, (671), 505 states have call successors, (671) [2023-04-02 15:53:02,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 4585 transitions. [2023-04-02 15:53:02,328 INFO L78 Accepts]: Start accepts. Automaton has 3073 states and 4585 transitions. Word has length 45 [2023-04-02 15:53:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:02,328 INFO L495 AbstractCegarLoop]: Abstraction has 3073 states and 4585 transitions. [2023-04-02 15:53:02,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-04-02 15:53:02,328 INFO L276 IsEmpty]: Start isEmpty. Operand 3073 states and 4585 transitions. [2023-04-02 15:53:02,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 15:53:02,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:02,329 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] [2023-04-02 15:53:02,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 15:53:02,329 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:02,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash -532707612, now seen corresponding path program 1 times [2023-04-02 15:53:02,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:02,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144047377] [2023-04-02 15:53:02,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:02,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:02,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:02,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:02,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144047377] [2023-04-02 15:53:02,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144047377] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:53:02,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:53:02,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 15:53:02,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217680600] [2023-04-02 15:53:02,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:53:02,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 15:53:02,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:53:02,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 15:53:02,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 15:53:02,574 INFO L87 Difference]: Start difference. First operand 3073 states and 4585 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 15:53:05,414 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 [] [2023-04-02 15:53:07,419 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 [] [2023-04-02 15:53:07,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:07,705 INFO L93 Difference]: Finished difference Result 3106 states and 4629 transitions. [2023-04-02 15:53:07,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 15:53:07,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-04-02 15:53:07,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:07,734 INFO L225 Difference]: With dead ends: 3106 [2023-04-02 15:53:07,734 INFO L226 Difference]: Without dead ends: 3102 [2023-04-02 15:53:07,736 INFO L412 NwaCegarLoop]: 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 [2023-04-02 15:53:07,737 INFO L413 NwaCegarLoop]: 605 mSDtfsCounter, 46 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:07,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1125 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 194 Invalid, 2 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 15:53:07,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3102 states. [2023-04-02 15:53:07,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3102 to 3097. [2023-04-02 15:53:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 2295 states have (on average 1.4910675381263616) internal successors, (3422), 2366 states have internal predecessors, (3422), 520 states have call successors, (520), 286 states have call predecessors, (520), 281 states have return successors, (673), 466 states have call predecessors, (673), 507 states have call successors, (673) [2023-04-02 15:53:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4615 transitions. [2023-04-02 15:53:07,903 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4615 transitions. Word has length 46 [2023-04-02 15:53:07,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:07,904 INFO L495 AbstractCegarLoop]: Abstraction has 3097 states and 4615 transitions. [2023-04-02 15:53:07,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-04-02 15:53:07,904 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4615 transitions. [2023-04-02 15:53:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-04-02 15:53:07,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:07,906 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] [2023-04-02 15:53:07,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 15:53:07,906 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:07,906 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:07,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1011537607, now seen corresponding path program 1 times [2023-04-02 15:53:07,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:07,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056425759] [2023-04-02 15:53:07,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:07,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:08,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:08,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:08,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056425759] [2023-04-02 15:53:08,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056425759] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:53:08,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:53:08,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 15:53:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382299266] [2023-04-02 15:53:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:53:08,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 15:53:08,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:53:08,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 15:53:08,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 15:53:08,265 INFO L87 Difference]: Start difference. First operand 3097 states and 4615 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 15:53:11,013 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 [] [2023-04-02 15:53:13,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:15,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:17,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:19,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:21,174 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 [] [2023-04-02 15:53:23,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:23,013 INFO L93 Difference]: Finished difference Result 3319 states and 4925 transitions. [2023-04-02 15:53:23,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 15:53:23,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2023-04-02 15:53:23,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:23,027 INFO L225 Difference]: With dead ends: 3319 [2023-04-02 15:53:23,027 INFO L226 Difference]: Without dead ends: 3228 [2023-04-02 15:53:23,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 15:53:23,029 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 1901 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 443 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 443 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:23,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 1546 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [443 Valid, 879 Invalid, 6 Unknown, 0 Unchecked, 14.6s Time] [2023-04-02 15:53:23,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3228 states. [2023-04-02 15:53:23,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3228 to 3091. [2023-04-02 15:53:23,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 2289 states have (on average 1.488859764089122) internal successors, (3408), 2360 states have internal predecessors, (3408), 520 states have call successors, (520), 286 states have call predecessors, (520), 281 states have return successors, (673), 466 states have call predecessors, (673), 507 states have call successors, (673) [2023-04-02 15:53:23,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4601 transitions. [2023-04-02 15:53:23,215 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4601 transitions. Word has length 46 [2023-04-02 15:53:23,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:23,216 INFO L495 AbstractCegarLoop]: Abstraction has 3091 states and 4601 transitions. [2023-04-02 15:53:23,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 4 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-02 15:53:23,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4601 transitions. [2023-04-02 15:53:23,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-04-02 15:53:23,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:23,217 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, 1, 1] [2023-04-02 15:53:23,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 15:53:23,217 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:23,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:23,218 INFO L85 PathProgramCache]: Analyzing trace with hash 916472509, now seen corresponding path program 1 times [2023-04-02 15:53:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:23,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436333831] [2023-04-02 15:53:23,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:23,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:23,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:23,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:23,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436333831] [2023-04-02 15:53:23,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436333831] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:53:23,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:53:23,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 15:53:23,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625903469] [2023-04-02 15:53:23,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:53:23,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 15:53:23,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:53:23,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 15:53:23,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 15:53:23,485 INFO L87 Difference]: Start difference. First operand 3091 states and 4601 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:26,943 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 [] [2023-04-02 15:53:28,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:30,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:31,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:31,778 INFO L93 Difference]: Finished difference Result 3964 states and 5978 transitions. [2023-04-02 15:53:31,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 15:53:31,778 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2023-04-02 15:53:31,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:31,793 INFO L225 Difference]: With dead ends: 3964 [2023-04-02 15:53:31,793 INFO L226 Difference]: Without dead ends: 3956 [2023-04-02 15:53:31,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 15:53:31,796 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 1213 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 220 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1231 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:31,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1231 Valid, 1601 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 686 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2023-04-02 15:53:31,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2023-04-02 15:53:32,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3864. [2023-04-02 15:53:32,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 2891 states have (on average 1.5008647526807333) internal successors, (4339), 2965 states have internal predecessors, (4339), 624 states have call successors, (624), 352 states have call predecessors, (624), 348 states have return successors, (825), 570 states have call predecessors, (825), 611 states have call successors, (825) [2023-04-02 15:53:32,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 5788 transitions. [2023-04-02 15:53:32,026 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 5788 transitions. Word has length 48 [2023-04-02 15:53:32,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:32,027 INFO L495 AbstractCegarLoop]: Abstraction has 3864 states and 5788 transitions. [2023-04-02 15:53:32,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:32,027 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 5788 transitions. [2023-04-02 15:53:32,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-02 15:53:32,028 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:32,028 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, 1, 1, 1] [2023-04-02 15:53:32,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 15:53:32,028 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:32,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2099462229, now seen corresponding path program 1 times [2023-04-02 15:53:32,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:32,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900105097] [2023-04-02 15:53:32,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:32,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:32,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:32,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:32,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900105097] [2023-04-02 15:53:32,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900105097] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:53:32,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:53:32,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 15:53:32,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002160158] [2023-04-02 15:53:32,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:53:32,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 15:53:32,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:53:32,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 15:53:32,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-02 15:53:32,263 INFO L87 Difference]: Start difference. First operand 3864 states and 5788 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:35,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:37,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:39,663 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 [] [2023-04-02 15:53:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:40,514 INFO L93 Difference]: Finished difference Result 3957 states and 5966 transitions. [2023-04-02 15:53:40,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 15:53:40,515 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 49 [2023-04-02 15:53:40,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:40,528 INFO L225 Difference]: With dead ends: 3957 [2023-04-02 15:53:40,528 INFO L226 Difference]: Without dead ends: 3952 [2023-04-02 15:53:40,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-04-02 15:53:40,530 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 1204 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 217 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:40,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 1598 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 684 Invalid, 3 Unknown, 0 Unchecked, 8.1s Time] [2023-04-02 15:53:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2023-04-02 15:53:40,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3864. [2023-04-02 15:53:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 2891 states have (on average 1.50051885160844) internal successors, (4338), 2965 states have internal predecessors, (4338), 624 states have call successors, (624), 352 states have call predecessors, (624), 348 states have return successors, (825), 570 states have call predecessors, (825), 611 states have call successors, (825) [2023-04-02 15:53:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 5787 transitions. [2023-04-02 15:53:40,767 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 5787 transitions. Word has length 49 [2023-04-02 15:53:40,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:40,767 INFO L495 AbstractCegarLoop]: Abstraction has 3864 states and 5787 transitions. [2023-04-02 15:53:40,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 5787 transitions. [2023-04-02 15:53:40,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-02 15:53:40,769 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:40,769 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, 1, 1, 1] [2023-04-02 15:53:40,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 15:53:40,770 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:40,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:40,770 INFO L85 PathProgramCache]: Analyzing trace with hash 129224798, now seen corresponding path program 1 times [2023-04-02 15:53:40,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:40,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016627812] [2023-04-02 15:53:40,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:40,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:41,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:41,198 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:41,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016627812] [2023-04-02 15:53:41,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016627812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 15:53:41,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 15:53:41,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 15:53:41,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457656039] [2023-04-02 15:53:41,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 15:53:41,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 15:53:41,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 15:53:41,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 15:53:41,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 15:53:41,199 INFO L87 Difference]: Start difference. First operand 3864 states and 5787 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:44,160 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 [] [2023-04-02 15:53:46,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:48,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-02 15:53:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 15:53:48,387 INFO L93 Difference]: Finished difference Result 7753 states and 11631 transitions. [2023-04-02 15:53:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 15:53:48,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 49 [2023-04-02 15:53:48,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 15:53:48,401 INFO L225 Difference]: With dead ends: 7753 [2023-04-02 15:53:48,401 INFO L226 Difference]: Without dead ends: 3897 [2023-04-02 15:53:48,411 INFO L412 NwaCegarLoop]: 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 [2023-04-02 15:53:48,411 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 5 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 15:53:48,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1788 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 3 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 15:53:48,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2023-04-02 15:53:48,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3865. [2023-04-02 15:53:48,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3865 states, 2892 states have (on average 1.5003457814661134) internal successors, (4339), 2966 states have internal predecessors, (4339), 624 states have call successors, (624), 352 states have call predecessors, (624), 348 states have return successors, (825), 570 states have call predecessors, (825), 611 states have call successors, (825) [2023-04-02 15:53:48,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5788 transitions. [2023-04-02 15:53:48,629 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5788 transitions. Word has length 49 [2023-04-02 15:53:48,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 15:53:48,629 INFO L495 AbstractCegarLoop]: Abstraction has 3865 states and 5788 transitions. [2023-04-02 15:53:48,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 15:53:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5788 transitions. [2023-04-02 15:53:48,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-04-02 15:53:48,630 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 15:53:48,630 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, 1, 1, 1, 1, 1] [2023-04-02 15:53:48,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 15:53:48,630 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 15:53:48,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 15:53:48,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1371358986, now seen corresponding path program 1 times [2023-04-02 15:53:48,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 15:53:48,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310162980] [2023-04-02 15:53:48,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:48,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 15:53:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:49,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 15:53:49,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310162980] [2023-04-02 15:53:49,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310162980] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 15:53:49,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309140691] [2023-04-02 15:53:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 15:53:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 15:53:49,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 15:53:49,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 15:53:49,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 15:53:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 15:53:50,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 2789 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 15:53:50,051 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 15:53:50,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:50,109 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 15:53:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 15:53:50,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309140691] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 15:53:50,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1022484349] [2023-04-02 15:53:50,218 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2023-04-02 15:53:50,218 INFO L166 IcfgInterpreter]: Building call graph [2023-04-02 15:53:50,220 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-02 15:53:50,223 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-02 15:53:50,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-02 15:54:08,936 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 163 for LOIs [2023-04-02 15:55:13,297 WARN L223 SmtUtils]: Spent 1.06m on a formula simplification. DAG size of input: 11635 DAG size of output: 303 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-02 15:56:17,414 WARN L223 SmtUtils]: Spent 1.07m on a formula simplification. DAG size of input: 11635 DAG size of output: 303 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)