/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 02:36:52,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 02:36:52,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 02:36:52,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-20 02:36:52,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 02:36:52,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 02:36:52,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 02:36:52,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 02:36:52,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 02:36:52,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 02:36:52,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 02:36:52,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 02:36:52,381 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 02:36:52,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 02:36:52,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 02:36:52,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 02:36:52,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 02:36:52,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-20 02:36:52,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-20 02:36:52,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-20 02:36:52,393 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-20 02:36:52,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-20 02:36:52,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-03-20 02:36:52,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 02:36:52,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 02:36:52,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 02:36:52,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2022-03-20 02:36:52,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 02:36:52,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 02:36:52,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-20 02:36:52,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-20 02:36:52,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-20 02:36:52,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-20 02:36:52,442 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-20 02:36:52,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-20 02:36:52,442 INFO L138 SettingsManager]: * Use SBE=true [2022-03-20 02:36:52,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 02:36:52,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 02:36:52,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 02:36:52,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 02:36:52,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 02:36:52,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 02:36:52,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 02:36:52,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:36:52,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 02:36:52,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-03-20 02:36:52,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 02:36:52,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 02:36:52,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 02:36:52,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 02:36:52,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 02:36:52,731 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 02:36:52,732 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 02:36:52,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c [2022-03-20 02:36:52,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c637be6/9d21547eb71841e29a980f28392454c7/FLAG6420d8f53 [2022-03-20 02:36:53,421 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 02:36:53,422 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c [2022-03-20 02:36:53,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c637be6/9d21547eb71841e29a980f28392454c7/FLAG6420d8f53 [2022-03-20 02:36:53,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34c637be6/9d21547eb71841e29a980f28392454c7 [2022-03-20 02:36:53,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 02:36:53,784 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 02:36:53,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 02:36:53,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 02:36:53,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 02:36:53,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:36:53" (1/1) ... [2022-03-20 02:36:53,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6659b95f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:53, skipping insertion in model container [2022-03-20 02:36:53,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 02:36:53" (1/1) ... [2022-03-20 02:36:53,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 02:36:53,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 02:36:54,511 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c[84645,84658] [2022-03-20 02:36:54,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:36:54,872 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 02:36:54,939 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c[84645,84658] [2022-03-20 02:36:55,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 02:36:55,165 INFO L208 MainTranslator]: Completed translation [2022-03-20 02:36:55,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55 WrapperNode [2022-03-20 02:36:55,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 02:36:55,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 02:36:55,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 02:36:55,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 02:36:55,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,412 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 02:36:55,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 02:36:55,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 02:36:55,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 02:36:55,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (1/1) ... [2022-03-20 02:36:55,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 02:36:55,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 02:36:55,529 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) [2022-03-20 02:36:55,543 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 [2022-03-20 02:36:55,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 02:36:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 02:36:55,575 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 02:36:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-03-20 02:36:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedIncrement [2022-03-20 02:36:55,576 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedDecrement [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure KeGetCurrentProcessorNumber [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQuerySystemTime [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateErrorLogEntry [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWriteErrorLogEntry [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWMIRegistrationControl [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryPerformanceCounter [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure WmiCompleteRequest [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-20 02:36:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure DriverEntry [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSyncFilterWithTarget [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfAddDevice [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPnp [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfStartDevice [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRemoveDevice [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSendToNextDriver [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPower [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfCreate [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfReadWrite [2022-03-20 02:36:55,578 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDeviceControl [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfWmi [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfShutdownFlush [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfUnload [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRegisterDevice [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfLogError [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfQueryWmiRegInfo [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfQueryWmiDataBlock [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfWmiFunctionControl [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfAddCounters [2022-03-20 02:36:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-20 02:36:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 02:36:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAcquireFastMutex [2022-03-20 02:36:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ExReleaseFastMutex [2022-03-20 02:36:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-03-20 02:36:55,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ExFreePool [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertHeadList [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedRemoveHeadList [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateMdl [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAttachDeviceToDeviceStack [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildAsynchronousFsdRequest [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-03-20 02:36:55,581 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateDevice [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateSymbolicLink [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteDevice [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDetachDevice [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeIrp [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeMdl [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2022-03-20 02:36:55,582 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-03-20 02:36:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-03-20 02:36:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReleaseCancelSpinLock [2022-03-20 02:36:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-03-20 02:36:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetHardErrorOrVerifyDevice [2022-03-20 02:36:55,583 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure KeAcquireSpinLockRaiseToDpc [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure KeDelayExecutionThread [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeEvent [2022-03-20 02:36:55,584 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSemaphore [2022-03-20 02:36:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSpinLock [2022-03-20 02:36:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure KeReleaseSemaphore [2022-03-20 02:36:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure KfReleaseSpinLock [2022-03-20 02:36:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-20 02:36:55,585 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmAllocateContiguousMemory [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmFreeContiguousMemory [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmMapLockedPagesSpecifyCache [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmPageEntireDriver [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmResetDriverPaging [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure MmUnlockPages [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ObfDereferenceObject [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure PoStartNextPowerIrp [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure PsTerminateSystemThread [2022-03-20 02:36:55,586 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlAnsiStringToUnicodeString [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareMemory [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCopyUnicodeString [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlDeleteRegistryValue [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlFreeUnicodeString [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitString [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitUnicodeString [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2022-03-20 02:36:55,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-20 02:36:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure WmiSystemControl [2022-03-20 02:36:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-03-20 02:36:55,589 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 02:36:55,664 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-03-20 02:36:55,664 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlDeleteRegistryValue [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitString [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitUnicodeString [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlAnsiStringToUnicodeString [2022-03-20 02:36:55,665 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCopyUnicodeString [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure RtlFreeUnicodeString [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareMemory [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedIncrement [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedDecrement [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure KeGetCurrentProcessorNumber [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeEvent [2022-03-20 02:36:55,666 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSemaphore [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeReleaseSemaphore [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeDelayExecutionThread [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSpinLock [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KfReleaseSpinLock [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure KeQuerySystemTime [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ExFreePool [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ExAcquireFastMutex [2022-03-20 02:36:55,667 INFO L130 BoogieDeclarations]: Found specification of procedure ExReleaseFastMutex [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertHeadList [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedRemoveHeadList [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure MmUnlockPages [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure MmMapLockedPagesSpecifyCache [2022-03-20 02:36:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure MmAllocateContiguousMemory [2022-03-20 02:36:55,670 INFO L130 BoogieDeclarations]: Found specification of procedure MmFreeContiguousMemory [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure MmResetDriverPaging [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure MmPageEntireDriver [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure PsTerminateSystemThread [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateErrorLogEntry [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateMdl [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IoAttachDeviceToDeviceStack [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildAsynchronousFsdRequest [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-20 02:36:55,671 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateDevice [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateSymbolicLink [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteDevice [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoDetachDevice [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeIrp [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeMdl [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoReleaseCancelSpinLock [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetHardErrorOrVerifyDevice [2022-03-20 02:36:55,672 INFO L130 BoogieDeclarations]: Found specification of procedure IoWriteErrorLogEntry [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure IoWMIRegistrationControl [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryPerformanceCounter [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure PoStartNextPowerIrp [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ObfDereferenceObject [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-20 02:36:55,673 INFO L130 BoogieDeclarations]: Found specification of procedure swprintf [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure WmiCompleteRequest [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure WmiSystemControl [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DriverEntry [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfAddDevice [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPnp [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPower [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfStartDevice [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRemoveDevice [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSendToNextDriver [2022-03-20 02:36:55,674 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfCreate [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfReadWrite [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDeviceControl [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfShutdownFlush [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfUnload [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfWmi [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfLogError [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRegisterDevice [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfQueryWmiRegInfo [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfQueryWmiDataBlock [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSyncFilterWithTarget [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfWmiFunctionControl [2022-03-20 02:36:55,675 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfAddCounters [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure KeAcquireSpinLockRaiseToDpc [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 02:36:55,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 02:36:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 02:36:55,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 02:36:56,359 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 02:36:56,362 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 02:36:56,394 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,458 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,459 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,465 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,466 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,494 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,500 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,500 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,500 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,510 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,511 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,515 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,522 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,523 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,523 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,530 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,530 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,531 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,559 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,560 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,560 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,570 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,570 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:56,984 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:56,996 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:56,996 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:57,030 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,038 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:57,038 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:57,038 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,051 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:57,051 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:57,074 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:57,085 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:57,150 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,155 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:57,155 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:57,158 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,180 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-03-20 02:36:57,180 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-03-20 02:36:57,317 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:57,334 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-03-20 02:36:57,334 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-03-20 02:36:59,560 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:36:59,569 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:36:59,570 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:36:59,585 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:31,990 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2022-03-20 02:37:31,990 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2022-03-20 02:37:32,174 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:32,191 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:37:32,191 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:37:32,529 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:32,545 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:37:32,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:37:32,560 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:32,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-03-20 02:37:32,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-03-20 02:37:38,825 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:38,949 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-03-20 02:37:38,950 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-03-20 02:37:38,996 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:39,038 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-20 02:37:39,038 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-20 02:37:39,096 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:39,122 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:37:39,122 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:37:39,705 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 02:37:39,725 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 02:37:39,725 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 02:37:39,914 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 02:37:39,928 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 02:37:39,928 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-20 02:37:39,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:37:39 BoogieIcfgContainer [2022-03-20 02:37:39,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 02:37:39,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 02:37:39,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 02:37:39,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 02:37:39,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 02:36:53" (1/3) ... [2022-03-20 02:37:39,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8a239c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:37:39, skipping insertion in model container [2022-03-20 02:37:39,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 02:36:55" (2/3) ... [2022-03-20 02:37:39,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a8a239c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 02:37:39, skipping insertion in model container [2022-03-20 02:37:39,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 02:37:39" (3/3) ... [2022-03-20 02:37:39,948 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf.i.cil-1.c [2022-03-20 02:37:39,952 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-20 02:37:39,953 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 02:37:39,996 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 02:37:40,001 INFO L340 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=PETRI_NET, 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 [2022-03-20 02:37:40,001 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 02:37:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand has 540 states, 370 states have (on average 1.3675675675675676) internal successors, (506), 386 states have internal predecessors, (506), 119 states have call successors, (119), 42 states have call predecessors, (119), 42 states have return successors, (119), 114 states have call predecessors, (119), 119 states have call successors, (119) [2022-03-20 02:37:40,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-20 02:37:40,039 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:37:40,040 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:37:40,040 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:37:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:37:40,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1505928512, now seen corresponding path program 1 times [2022-03-20 02:37:40,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:37:40,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579976269] [2022-03-20 02:37:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:37:40,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:37:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:37:57,819 WARN L232 SmtUtils]: Spent 16.02s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:37:57,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:37:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:37:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 02:37:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:37:58,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:37:58,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:37:58,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579976269] [2022-03-20 02:37:58,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579976269] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:37:58,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:37:58,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 02:37:58,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613690580] [2022-03-20 02:37:58,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:37:58,366 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 02:37:58,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:37:58,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 02:37:58,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:37:58,401 INFO L87 Difference]: Start difference. First operand has 540 states, 370 states have (on average 1.3675675675675676) internal successors, (506), 386 states have internal predecessors, (506), 119 states have call successors, (119), 42 states have call predecessors, (119), 42 states have return successors, (119), 114 states have call predecessors, (119), 119 states have call successors, (119) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:38:00,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:38:18,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:38:18,752 INFO L93 Difference]: Finished difference Result 973 states and 1439 transitions. [2022-03-20 02:38:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 02:38:18,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-03-20 02:38:18,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:38:18,768 INFO L225 Difference]: With dead ends: 973 [2022-03-20 02:38:18,769 INFO L226 Difference]: Without dead ends: 533 [2022-03-20 02:38:18,775 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 02:38:18,778 INFO L913 BasicCegarLoop]: 550 mSDtfsCounter, 278 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 116 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-03-20 02:38:18,780 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 597 Invalid, 841 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [116 Valid, 724 Invalid, 1 Unknown, 0 Unchecked, 19.6s Time] [2022-03-20 02:38:18,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-20 02:38:19,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 434. [2022-03-20 02:38:19,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 297 states have (on average 1.3333333333333333) internal successors, (396), 314 states have internal predecessors, (396), 98 states have call successors, (98), 40 states have call predecessors, (98), 38 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-03-20 02:38:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 577 transitions. [2022-03-20 02:38:19,107 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 577 transitions. Word has length 24 [2022-03-20 02:38:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:38:19,107 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 577 transitions. [2022-03-20 02:38:19,108 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:38:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 577 transitions. [2022-03-20 02:38:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-20 02:38:19,109 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:38:19,109 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:38:19,109 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 02:38:19,109 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:38:19,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:38:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1797822610, now seen corresponding path program 1 times [2022-03-20 02:38:19,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:38:19,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530212872] [2022-03-20 02:38:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:38:19,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:38:19,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:38:36,203 WARN L232 SmtUtils]: Spent 15.91s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:38:36,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:38:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:38:36,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 02:38:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:38:36,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-20 02:38:36,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:38:36,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530212872] [2022-03-20 02:38:36,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530212872] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:38:36,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:38:36,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:38:36,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226847742] [2022-03-20 02:38:36,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:38:36,652 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:38:36,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:38:36,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:38:36,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:38:36,653 INFO L87 Difference]: Start difference. First operand 434 states and 577 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:38:52,949 WARN L232 SmtUtils]: Spent 16.06s on a formula simplification that was a NOOP. DAG size: 2035 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:39:09,110 WARN L232 SmtUtils]: Spent 16.06s on a formula simplification that was a NOOP. DAG size: 2035 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:39:11,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:39:13,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:39:28,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:39:28,499 INFO L93 Difference]: Finished difference Result 965 states and 1308 transitions. [2022-03-20 02:39:28,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:39:28,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2022-03-20 02:39:28,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:39:28,504 INFO L225 Difference]: With dead ends: 965 [2022-03-20 02:39:28,504 INFO L226 Difference]: Without dead ends: 539 [2022-03-20 02:39:28,506 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 48.4s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:39:28,508 INFO L913 BasicCegarLoop]: 531 mSDtfsCounter, 475 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 254 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 1060 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:39:28,509 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [497 Valid, 1060 Invalid, 1412 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [254 Valid, 1156 Invalid, 2 Unknown, 0 Unchecked, 18.9s Time] [2022-03-20 02:39:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-03-20 02:39:28,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 438. [2022-03-20 02:39:28,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 301 states have (on average 1.3289036544850499) internal successors, (400), 318 states have internal predecessors, (400), 98 states have call successors, (98), 40 states have call predecessors, (98), 38 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-03-20 02:39:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 581 transitions. [2022-03-20 02:39:28,814 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 581 transitions. Word has length 26 [2022-03-20 02:39:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:39:28,814 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 581 transitions. [2022-03-20 02:39:28,814 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-20 02:39:28,815 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 581 transitions. [2022-03-20 02:39:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 02:39:28,816 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:39:28,816 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:39:28,816 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 02:39:28,816 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:39:28,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:39:28,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1297863630, now seen corresponding path program 1 times [2022-03-20 02:39:28,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:39:28,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584663806] [2022-03-20 02:39:28,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:39:28,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:39:29,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:39:46,296 WARN L232 SmtUtils]: Spent 15.97s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:39:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:39:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:39:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:39:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:39:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:39:46,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:39:46,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584663806] [2022-03-20 02:39:46,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584663806] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:39:46,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:39:46,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 02:39:46,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832847676] [2022-03-20 02:39:46,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:39:46,735 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 02:39:46,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:39:46,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 02:39:46,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 02:39:46,736 INFO L87 Difference]: Start difference. First operand 438 states and 581 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 02:40:03,082 WARN L232 SmtUtils]: Spent 16.01s on a formula simplification that was a NOOP. DAG size: 2033 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:40:05,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:40:24,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:40:24,670 INFO L93 Difference]: Finished difference Result 557 states and 762 transitions. [2022-03-20 02:40:24,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:40:24,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2022-03-20 02:40:24,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:40:24,674 INFO L225 Difference]: With dead ends: 557 [2022-03-20 02:40:24,674 INFO L226 Difference]: Without dead ends: 537 [2022-03-20 02:40:24,674 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:40:24,675 INFO L913 BasicCegarLoop]: 517 mSDtfsCounter, 294 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 1059 mSolverCounterSat, 119 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:40:24,676 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [316 Valid, 779 Invalid, 1179 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [119 Valid, 1059 Invalid, 1 Unknown, 0 Unchecked, 21.2s Time] [2022-03-20 02:40:24,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-03-20 02:40:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 438. [2022-03-20 02:40:24,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 301 states have (on average 1.3255813953488371) internal successors, (399), 318 states have internal predecessors, (399), 98 states have call successors, (98), 40 states have call predecessors, (98), 38 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2022-03-20 02:40:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 580 transitions. [2022-03-20 02:40:24,989 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 580 transitions. Word has length 30 [2022-03-20 02:40:24,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:40:24,990 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 580 transitions. [2022-03-20 02:40:24,990 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-03-20 02:40:24,990 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 580 transitions. [2022-03-20 02:40:24,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 02:40:24,993 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:40:24,993 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:40:24,994 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 02:40:24,994 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:40:24,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:40:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1464136845, now seen corresponding path program 1 times [2022-03-20 02:40:24,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:40:24,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238925588] [2022-03-20 02:40:24,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:40:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:40:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:40:43,603 WARN L232 SmtUtils]: Spent 16.15s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:40:43,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:40:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:40:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:40:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:40:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:40:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:40:44,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:40:44,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:40:44,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238925588] [2022-03-20 02:40:44,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238925588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:40:44,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:40:44,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:40:44,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490050075] [2022-03-20 02:40:44,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:40:44,110 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:40:44,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:40:44,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:40:44,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:40:44,111 INFO L87 Difference]: Start difference. First operand 438 states and 580 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:41:00,157 WARN L232 SmtUtils]: Spent 15.81s on a formula simplification that was a NOOP. DAG size: 2033 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:41:02,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:41:19,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:41:22,342 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:41:23,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:41:23,657 INFO L93 Difference]: Finished difference Result 1142 states and 1574 transitions. [2022-03-20 02:41:23,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:41:23,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2022-03-20 02:41:23,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:41:23,663 INFO L225 Difference]: With dead ends: 1142 [2022-03-20 02:41:23,663 INFO L226 Difference]: Without dead ends: 853 [2022-03-20 02:41:23,665 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:41:23,666 INFO L913 BasicCegarLoop]: 747 mSDtfsCounter, 1093 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 382 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.7s IncrementalHoareTripleChecker+Time [2022-03-20 02:41:23,666 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 1045 Invalid, 1716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 1331 Invalid, 3 Unknown, 0 Unchecked, 22.7s Time] [2022-03-20 02:41:23,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-20 02:41:24,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 696. [2022-03-20 02:41:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 486 states have (on average 1.3106995884773662) internal successors, (637), 499 states have internal predecessors, (637), 143 states have call successors, (143), 62 states have call predecessors, (143), 66 states have return successors, (163), 140 states have call predecessors, (163), 131 states have call successors, (163) [2022-03-20 02:41:24,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 943 transitions. [2022-03-20 02:41:24,123 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 943 transitions. Word has length 35 [2022-03-20 02:41:24,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:41:24,124 INFO L478 AbstractCegarLoop]: Abstraction has 696 states and 943 transitions. [2022-03-20 02:41:24,124 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 3 states have internal predecessors, (23), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:41:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 943 transitions. [2022-03-20 02:41:24,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 02:41:24,126 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:41:24,126 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:41:24,126 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 02:41:24,126 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:41:24,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:41:24,127 INFO L85 PathProgramCache]: Analyzing trace with hash 5168989, now seen corresponding path program 1 times [2022-03-20 02:41:24,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:41:24,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041736539] [2022-03-20 02:41:24,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:41:24,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:41:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:41:42,239 WARN L232 SmtUtils]: Spent 15.90s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:41:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:41:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:41:42,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:41:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:41:42,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:41:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:41:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:41:42,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:41:42,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041736539] [2022-03-20 02:41:42,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041736539] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:41:42,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:41:42,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:41:42,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816312288] [2022-03-20 02:41:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:41:42,884 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:41:42,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:41:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:41:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:41:42,886 INFO L87 Difference]: Start difference. First operand 696 states and 943 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-20 02:41:59,178 WARN L232 SmtUtils]: Spent 16.12s on a formula simplification that was a NOOP. DAG size: 2034 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:42:01,264 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:42:08,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:42:08,855 INFO L93 Difference]: Finished difference Result 1247 states and 1733 transitions. [2022-03-20 02:42:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 02:42:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-03-20 02:42:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:42:08,860 INFO L225 Difference]: With dead ends: 1247 [2022-03-20 02:42:08,860 INFO L226 Difference]: Without dead ends: 675 [2022-03-20 02:42:08,863 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:42:08,864 INFO L913 BasicCegarLoop]: 440 mSDtfsCounter, 841 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 308 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 308 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-03-20 02:42:08,864 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [862 Valid, 499 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [308 Valid, 350 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-03-20 02:42:08,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-03-20 02:42:09,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 628. [2022-03-20 02:42:09,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628 states, 435 states have (on average 1.3011494252873563) internal successors, (566), 447 states have internal predecessors, (566), 133 states have call successors, (133), 55 states have call predecessors, (133), 59 states have return successors, (154), 131 states have call predecessors, (154), 122 states have call successors, (154) [2022-03-20 02:42:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 853 transitions. [2022-03-20 02:42:09,305 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 853 transitions. Word has length 45 [2022-03-20 02:42:09,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:42:09,305 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 853 transitions. [2022-03-20 02:42:09,305 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2022-03-20 02:42:09,306 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 853 transitions. [2022-03-20 02:42:09,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 02:42:09,307 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:42:09,307 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:42:09,307 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 02:42:09,308 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:42:09,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:42:09,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1041269887, now seen corresponding path program 1 times [2022-03-20 02:42:09,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:42:09,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141174681] [2022-03-20 02:42:09,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:42:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:42:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:42:27,380 WARN L232 SmtUtils]: Spent 16.03s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:42:27,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:42:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:42:27,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:42:27,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:42:27,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:42:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:42:27,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:42:27,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:42:27,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141174681] [2022-03-20 02:42:27,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141174681] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:42:27,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:42:27,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 02:42:27,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988906546] [2022-03-20 02:42:27,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:42:27,824 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 02:42:27,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:42:27,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 02:42:27,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 02:42:27,825 INFO L87 Difference]: Start difference. First operand 628 states and 853 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:42:43,743 WARN L232 SmtUtils]: Spent 15.67s on a formula simplification that was a NOOP. DAG size: 2033 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:42:45,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:42:54,558 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-03-20 02:43:00,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:43:01,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:43:01,760 INFO L93 Difference]: Finished difference Result 724 states and 991 transitions. [2022-03-20 02:43:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 02:43:01,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-03-20 02:43:01,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:43:01,765 INFO L225 Difference]: With dead ends: 724 [2022-03-20 02:43:01,766 INFO L226 Difference]: Without dead ends: 720 [2022-03-20 02:43:01,766 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 32.3s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 02:43:01,769 INFO L913 BasicCegarLoop]: 501 mSDtfsCounter, 434 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 211 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:43:01,769 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [452 Valid, 822 Invalid, 1109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [211 Valid, 895 Invalid, 3 Unknown, 0 Unchecked, 17.2s Time] [2022-03-20 02:43:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-20 02:43:02,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 658. [2022-03-20 02:43:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 461 states have (on average 1.3058568329718003) internal successors, (602), 471 states have internal predecessors, (602), 135 states have call successors, (135), 58 states have call predecessors, (135), 61 states have return successors, (156), 133 states have call predecessors, (156), 124 states have call successors, (156) [2022-03-20 02:43:02,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 893 transitions. [2022-03-20 02:43:02,320 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 893 transitions. Word has length 45 [2022-03-20 02:43:02,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:43:02,320 INFO L478 AbstractCegarLoop]: Abstraction has 658 states and 893 transitions. [2022-03-20 02:43:02,320 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-03-20 02:43:02,321 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 893 transitions. [2022-03-20 02:43:02,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 02:43:02,322 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:43:02,322 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:43:02,322 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 02:43:02,322 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:43:02,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:43:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash 221945446, now seen corresponding path program 1 times [2022-03-20 02:43:02,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:43:02,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761136006] [2022-03-20 02:43:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:43:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:43:03,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:20,208 WARN L232 SmtUtils]: Spent 15.81s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:43:20,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:43:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:43:20,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:43:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:20,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-03-20 02:43:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:21,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:43:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:43:21,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:43:21,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:43:21,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761136006] [2022-03-20 02:43:21,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761136006] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:43:21,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:43:21,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:43:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053800945] [2022-03-20 02:43:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:43:21,039 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:43:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:43:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:43:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:43:21,040 INFO L87 Difference]: Start difference. First operand 658 states and 893 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:43:37,296 WARN L232 SmtUtils]: Spent 16.13s on a formula simplification that was a NOOP. DAG size: 2041 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:43:53,780 WARN L232 SmtUtils]: Spent 16.22s on a formula simplification that was a NOOP. DAG size: 2042 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:44:09,775 WARN L232 SmtUtils]: Spent 15.87s on a formula simplification that was a NOOP. DAG size: 2033 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:44:11,895 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:13,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:15,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:18,210 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:20,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:22,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:24,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:44:41,922 WARN L232 SmtUtils]: Spent 17.16s on a formula simplification that was a NOOP. DAG size: 2043 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:44:59,713 WARN L232 SmtUtils]: Spent 17.01s on a formula simplification that was a NOOP. DAG size: 2034 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:45:39,498 WARN L232 SmtUtils]: Spent 34.21s on a formula simplification. DAG size of input: 2046 DAG size of output: 2044 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:45:58,507 WARN L232 SmtUtils]: Spent 17.18s on a formula simplification that was a NOOP. DAG size: 2045 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:46:06,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 02:46:06,182 INFO L93 Difference]: Finished difference Result 807 states and 1121 transitions. [2022-03-20 02:46:06,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-20 02:46:06,183 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2022-03-20 02:46:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 02:46:06,187 INFO L225 Difference]: With dead ends: 807 [2022-03-20 02:46:06,188 INFO L226 Difference]: Without dead ends: 796 [2022-03-20 02:46:06,188 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 151.5s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2022-03-20 02:46:06,189 INFO L913 BasicCegarLoop]: 417 mSDtfsCounter, 1122 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 546 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2022-03-20 02:46:06,189 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 846 Invalid, 1886 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [546 Valid, 1333 Invalid, 7 Unknown, 0 Unchecked, 29.2s Time] [2022-03-20 02:46:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-03-20 02:46:06,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 680. [2022-03-20 02:46:06,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 479 states have (on average 1.3048016701461378) internal successors, (625), 491 states have internal predecessors, (625), 135 states have call successors, (135), 58 states have call predecessors, (135), 65 states have return successors, (160), 135 states have call predecessors, (160), 124 states have call successors, (160) [2022-03-20 02:46:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 920 transitions. [2022-03-20 02:46:06,767 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 920 transitions. Word has length 49 [2022-03-20 02:46:06,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 02:46:06,767 INFO L478 AbstractCegarLoop]: Abstraction has 680 states and 920 transitions. [2022-03-20 02:46:06,767 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:46:06,768 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 920 transitions. [2022-03-20 02:46:06,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 02:46:06,769 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 02:46:06,769 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-20 02:46:06,769 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 02:46:06,769 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 02:46:06,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 02:46:06,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2146360932, now seen corresponding path program 1 times [2022-03-20 02:46:06,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 02:46:06,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376080667] [2022-03-20 02:46:06,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 02:46:06,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 02:46:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,028 WARN L232 SmtUtils]: Spent 17.22s on a formula simplification that was a NOOP. DAG size: 2032 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:46:26,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 02:46:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 02:46:26,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 02:46:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-03-20 02:46:26,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 02:46:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 02:46:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-20 02:46:26,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 02:46:26,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376080667] [2022-03-20 02:46:26,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376080667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 02:46:26,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 02:46:26,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 02:46:26,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980795145] [2022-03-20 02:46:26,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 02:46:26,801 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 02:46:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-20 02:46:26,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 02:46:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 02:46:26,802 INFO L87 Difference]: Start difference. First operand 680 states and 920 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 5 states have internal predecessors, (36), 3 states have call successors, (7), 7 states have call predecessors, (7), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 02:46:43,934 WARN L232 SmtUtils]: Spent 17.06s on a formula simplification that was a NOOP. DAG size: 2041 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:47:01,338 WARN L232 SmtUtils]: Spent 17.10s on a formula simplification that was a NOOP. DAG size: 2042 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:47:18,546 WARN L232 SmtUtils]: Spent 17.07s on a formula simplification that was a NOOP. DAG size: 2033 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:47:20,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:22,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:24,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:27,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:29,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:31,190 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:33,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 02:47:51,173 WARN L232 SmtUtils]: Spent 17.49s on a formula simplification that was a NOOP. DAG size: 2043 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:48:09,213 WARN L232 SmtUtils]: Spent 17.20s on a formula simplification that was a NOOP. DAG size: 2034 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 02:48:50,170 WARN L232 SmtUtils]: Spent 34.57s on a formula simplification. DAG size of input: 2046 DAG size of output: 2044 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)