/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/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-b030c9e [2022-03-20 17:19:21,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-20 17:19:21,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-20 17:19:21,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-20 17:19:21,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-20 17:19:21,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-20 17:19:21,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-20 17:19:21,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-20 17:19:21,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-20 17:19:21,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-20 17:19:21,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-20 17:19:21,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-20 17:19:21,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-20 17:19:21,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-20 17:19:21,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-20 17:19:21,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-20 17:19:21,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-20 17:19:21,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-20 17:19:21,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-20 17:19:21,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-20 17:19:21,139 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-20 17:19:21,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-20 17:19:21,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-20 17:19:21,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-20 17:19:21,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-20 17:19:21,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-20 17:19:21,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-20 17:19:21,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-20 17:19:21,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-20 17:19:21,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-20 17:19:21,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-20 17:19:21,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-20 17:19:21,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-20 17:19:21,166 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-20 17:19:21,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-20 17:19:21,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-20 17:19:21,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-20 17:19:21,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-20 17:19:21,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-20 17:19:21,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:19:21,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-20 17:19:21,168 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-20 17:19:21,169 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-20 17:19:21,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-20 17:19:21,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-20 17:19:21,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-20 17:19:21,399 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-20 17:19:21,400 INFO L275 PluginConnector]: CDTParser initialized [2022-03-20 17:19:21,400 INFO L432 ainManager$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 17:19:21,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35587708c/7f3c03c3443c45a8986427ab5a29fb3f/FLAG040e4b149 [2022-03-20 17:19:22,009 INFO L306 CDTParser]: Found 1 translation units. [2022-03-20 17:19:22,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers/diskperf.i.cil-1.c [2022-03-20 17:19:22,041 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35587708c/7f3c03c3443c45a8986427ab5a29fb3f/FLAG040e4b149 [2022-03-20 17:19:22,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35587708c/7f3c03c3443c45a8986427ab5a29fb3f [2022-03-20 17:19:22,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-20 17:19:22,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-20 17:19:22,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-20 17:19:22,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-20 17:19:22,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-20 17:19:22,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:19:22" (1/1) ... [2022-03-20 17:19:22,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee4e1ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:22, skipping insertion in model container [2022-03-20 17:19:22,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.03 05:19:22" (1/1) ... [2022-03-20 17:19:22,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-20 17:19:22,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-20 17:19:22,927 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 17:19:23,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:19:23,204 INFO L203 MainTranslator]: Completed pre-run [2022-03-20 17:19:23,271 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 17:19:23,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-20 17:19:23,471 INFO L208 MainTranslator]: Completed translation [2022-03-20 17:19:23,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23 WrapperNode [2022-03-20 17:19:23,472 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-20 17:19:23,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-20 17:19:23,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-20 17:19:23,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-20 17:19:23,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-20 17:19:23,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-20 17:19:23,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-20 17:19:23,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-20 17:19:23,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (1/1) ... [2022-03-20 17:19:23,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-20 17:19:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:19:23,902 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 17:19:23,952 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 17:19:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-20 17:19:23,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedIncrement [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedDecrement [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2022-03-20 17:19:23,984 INFO L138 BoogieDeclarations]: Found implementation of procedure KeGetCurrentProcessorNumber [2022-03-20 17:19:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQuerySystemTime [2022-03-20 17:19:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateErrorLogEntry [2022-03-20 17:19:23,985 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWriteErrorLogEntry [2022-03-20 17:19:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWMIRegistrationControl [2022-03-20 17:19:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryPerformanceCounter [2022-03-20 17:19:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure WmiCompleteRequest [2022-03-20 17:19:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-03-20 17:19:23,986 INFO L138 BoogieDeclarations]: Found implementation of procedure _BLAST_init [2022-03-20 17:19:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure DriverEntry [2022-03-20 17:19:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSyncFilterWithTarget [2022-03-20 17:19:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfAddDevice [2022-03-20 17:19:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPnp [2022-03-20 17:19:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIrpCompletion [2022-03-20 17:19:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfStartDevice [2022-03-20 17:19:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRemoveDevice [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfSendToNextDriver [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDispatchPower [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfForwardIrpSynchronous [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfCreate [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfReadWrite [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfIoCompletion [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfDeviceControl [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfWmi [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfShutdownFlush [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfUnload [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfRegisterDevice [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfLogError [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfQueryWmiRegInfo [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfQueryWmiDataBlock [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskperfWmiFunctionControl [2022-03-20 17:19:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure DiskPerfAddCounters [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure stub_driver_init [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAcquireFastMutex [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExReleaseFastMutex [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExFreePool [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertHeadList [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedRemoveHeadList [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAllocateMdl [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAttachDeviceToDeviceStack [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildAsynchronousFsdRequest [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoBuildDeviceIoControlRequest [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateDevice [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoCreateSymbolicLink [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteDevice [2022-03-20 17:19:23,991 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDeleteSymbolicLink [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoDetachDevice [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeIrp [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoFreeMdl [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoQueryDeviceDescription [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoRegisterDeviceInterface [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReleaseCancelSpinLock [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetHardErrorOrVerifyDevice [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure KeAcquireSpinLockRaiseToDpc [2022-03-20 17:19:23,992 INFO L138 BoogieDeclarations]: Found implementation of procedure KeDelayExecutionThread [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeEvent [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSemaphore [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeInitializeSpinLock [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeReleaseSemaphore [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KfReleaseSpinLock [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2022-03-20 17:19:23,993 INFO L138 BoogieDeclarations]: Found implementation of procedure MmAllocateContiguousMemory [2022-03-20 17:19:23,994 INFO L138 BoogieDeclarations]: Found implementation of procedure MmFreeContiguousMemory [2022-03-20 17:19:23,994 INFO L138 BoogieDeclarations]: Found implementation of procedure MmMapLockedPagesSpecifyCache [2022-03-20 17:19:23,994 INFO L138 BoogieDeclarations]: Found implementation of procedure MmPageEntireDriver [2022-03-20 17:19:23,994 INFO L138 BoogieDeclarations]: Found implementation of procedure MmResetDriverPaging [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure MmUnlockPages [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ObReferenceObjectByHandle [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ObfDereferenceObject [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure PoStartNextPowerIrp [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure PsCreateSystemThread [2022-03-20 17:19:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure PsTerminateSystemThread [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlAnsiStringToUnicodeString [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareMemory [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCopyUnicodeString [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlDeleteRegistryValue [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlFreeUnicodeString [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitString [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlInitUnicodeString [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ZwClose [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure WmiSystemControl [2022-03-20 17:19:23,996 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-03-20 17:19:23,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-03-20 17:19:23,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-20 17:19:23,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-03-20 17:19:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2022-03-20 17:19:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-03-20 17:19:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2022-03-20 17:19:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2022-03-20 17:19:23,998 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlDeleteRegistryValue [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitString [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlInitUnicodeString [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlAnsiStringToUnicodeString [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCopyUnicodeString [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlFreeUnicodeString [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareMemory [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedIncrement [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-20 17:19:23,999 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedDecrement [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeGetCurrentProcessorNumber [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeEvent [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSemaphore [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeReleaseSemaphore [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeDelayExecutionThread [2022-03-20 17:19:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2022-03-20 17:19:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure KeInitializeSpinLock [2022-03-20 17:19:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure KfReleaseSpinLock [2022-03-20 17:19:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure KeQuerySystemTime [2022-03-20 17:19:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-03-20 17:19:24,004 INFO L130 BoogieDeclarations]: Found specification of procedure ExFreePool [2022-03-20 17:19:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure ExAcquireFastMutex [2022-03-20 17:19:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure ExReleaseFastMutex [2022-03-20 17:19:24,008 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertHeadList [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedRemoveHeadList [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmUnlockPages [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmMapLockedPagesSpecifyCache [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmAllocateContiguousMemory [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmFreeContiguousMemory [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmResetDriverPaging [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure MmPageEntireDriver [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure PsCreateSystemThread [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure PsTerminateSystemThread [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateErrorLogEntry [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoAllocateMdl [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoAttachDeviceToDeviceStack [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildAsynchronousFsdRequest [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoBuildDeviceIoControlRequest [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateDevice [2022-03-20 17:19:24,009 INFO L130 BoogieDeclarations]: Found specification of procedure IoCreateSymbolicLink [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteDevice [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoDeleteSymbolicLink [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoDetachDevice [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeIrp [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoFreeMdl [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoQueryDeviceDescription [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoReleaseCancelSpinLock [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetHardErrorOrVerifyDevice [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoWriteErrorLogEntry [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoWMIRegistrationControl [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoRegisterDeviceInterface [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryPerformanceCounter [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-03-20 17:19:24,010 INFO L130 BoogieDeclarations]: Found specification of procedure PoStartNextPowerIrp [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure ObReferenceObjectByHandle [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure ObfDereferenceObject [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure ZwClose [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure swprintf [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure WmiCompleteRequest [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure WmiSystemControl [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure _BLAST_init [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DriverEntry [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfForwardIrpSynchronous [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfAddDevice [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPnp [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDispatchPower [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfStartDevice [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRemoveDevice [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSendToNextDriver [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfCreate [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfReadWrite [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIoCompletion [2022-03-20 17:19:24,011 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfDeviceControl [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfShutdownFlush [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfUnload [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfWmi [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfLogError [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfRegisterDevice [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfIrpCompletion [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfQueryWmiRegInfo [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfQueryWmiDataBlock [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfSyncFilterWithTarget [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskperfWmiFunctionControl [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure DiskPerfAddCounters [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure stub_driver_init [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-03-20 17:19:24,012 INFO L130 BoogieDeclarations]: Found specification of procedure KeAcquireSpinLockRaiseToDpc [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-03-20 17:19:24,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-03-20 17:19:24,608 INFO L234 CfgBuilder]: Building ICFG [2022-03-20 17:19:24,610 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-20 17:19:24,636 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,662 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,662 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,662 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,667 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,690 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,695 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,696 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,696 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,705 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,707 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,710 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,717 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,717 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,717 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,723 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,723 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,723 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,737 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,737 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:24,737 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:24,747 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:24,747 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,101 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,106 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:25,106 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,118 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,122 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:25,122 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,122 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,129 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:25,129 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,138 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,143 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:25,143 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,154 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,159 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:25,159 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:25,162 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,173 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2022-03-20 17:19:25,173 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2022-03-20 17:19:25,285 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:25,303 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2022-03-20 17:19:25,303 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2022-03-20 17:19:26,882 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:26,889 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:26,889 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:26,901 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:58,439 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2022-03-20 17:19:58,440 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2022-03-20 17:19:58,587 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:58,607 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:58,607 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:58,839 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:58,857 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:19:58,858 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:19:58,870 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:19:58,903 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-03-20 17:19:58,903 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-03-20 17:20:05,166 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:20:05,277 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-03-20 17:20:05,277 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-03-20 17:20:05,323 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:20:05,364 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2022-03-20 17:20:05,365 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2022-03-20 17:20:05,421 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:20:05,439 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:20:05,439 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:20:05,928 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-03-20 17:20:05,944 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-03-20 17:20:05,944 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-03-20 17:20:06,101 INFO L275 CfgBuilder]: Performing block encoding [2022-03-20 17:20:06,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-20 17:20:06,114 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-20 17:20:06,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:20:06 BoogieIcfgContainer [2022-03-20 17:20:06,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-20 17:20:06,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-20 17:20:06,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-20 17:20:06,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-20 17:20:06,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.03 05:19:22" (1/3) ... [2022-03-20 17:20:06,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b9157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:20:06, skipping insertion in model container [2022-03-20 17:20:06,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.03 05:19:23" (2/3) ... [2022-03-20 17:20:06,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19b9157f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.03 05:20:06, skipping insertion in model container [2022-03-20 17:20:06,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.03 05:20:06" (3/3) ... [2022-03-20 17:20:06,130 INFO L111 eAbstractionObserver]: Analyzing ICFG diskperf.i.cil-1.c [2022-03-20 17:20:06,134 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-20 17:20:06,134 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-20 17:20:06,167 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-20 17:20:06,171 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 17:20:06,172 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-20 17:20:06,188 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 17:20:06,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-03-20 17:20:06,194 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:20:06,195 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 17:20:06,195 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:20:06,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:20:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1505928512, now seen corresponding path program 1 times [2022-03-20 17:20:06,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:20:06,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [715205890] [2022-03-20 17:20:06,211 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:20:06,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1505928512, now seen corresponding path program 2 times [2022-03-20 17:20:06,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:20:06,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592614380] [2022-03-20 17:20:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:20:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:20:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:20:21,372 WARN L232 SmtUtils]: Spent 13.90s 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 17:20:21,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:20:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:20:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-03-20 17:20:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:20:21,749 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 17:20:21,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:20:21,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592614380] [2022-03-20 17:20:21,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592614380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:20:21,751 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:20:21,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:20:21,754 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:20:21,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [715205890] [2022-03-20 17:20:21,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [715205890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:20:21,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:20:21,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-20 17:20:21,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142501204] [2022-03-20 17:20:21,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:20:21,759 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-20 17:20:21,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:20:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-20 17:20:21,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:20:21,783 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 17:20:24,015 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 17:20:40,829 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:20:42,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:20:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:20:44,589 INFO L93 Difference]: Finished difference Result 973 states and 1439 transitions. [2022-03-20 17:20:44,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-20 17:20:44,594 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 17:20:44,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:20:44,603 INFO L225 Difference]: With dead ends: 973 [2022-03-20 17:20:44,604 INFO L226 Difference]: Without dead ends: 533 [2022-03-20 17:20:44,609 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-20 17:20:44,611 INFO L913 BasicCegarLoop]: 532 mSDtfsCounter, 278 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 118 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:20:44,612 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [300 Valid, 579 Invalid, 839 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [118 Valid, 718 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2022-03-20 17:20:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2022-03-20 17:20:45,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 434. [2022-03-20 17:20:45,208 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 17:20:45,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 577 transitions. [2022-03-20 17:20:45,212 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 577 transitions. Word has length 24 [2022-03-20 17:20:45,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:20:45,212 INFO L478 AbstractCegarLoop]: Abstraction has 434 states and 577 transitions. [2022-03-20 17:20:45,212 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 17:20:45,213 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 577 transitions. [2022-03-20 17:20:45,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-03-20 17:20:45,213 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:20:45,213 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 17:20:45,213 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-20 17:20:45,214 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:20:45,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:20:45,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1797822610, now seen corresponding path program 1 times [2022-03-20 17:20:45,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:20:45,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [38958773] [2022-03-20 17:20:45,215 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-20 17:20:45,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1797822610, now seen corresponding path program 2 times [2022-03-20 17:20:45,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:20:45,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398075353] [2022-03-20 17:20:45,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:20:45,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:20:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:21:00,097 WARN L232 SmtUtils]: Spent 14.10s 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 17:21:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:21:00,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:21:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-03-20 17:21:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:21:00,495 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 17:21:00,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:21:00,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398075353] [2022-03-20 17:21:00,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398075353] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:21:00,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:21:00,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:21:00,496 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:21:00,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [38958773] [2022-03-20 17:21:00,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [38958773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:21:00,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:21:00,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:21:00,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261314352] [2022-03-20 17:21:00,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:21:00,497 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 17:21:00,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:21:00,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 17:21:00,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:21:00,498 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 17:21:15,081 WARN L232 SmtUtils]: Spent 14.36s 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 17:21:30,366 WARN L232 SmtUtils]: Spent 15.19s 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 17:21:32,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:21:34,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:21:36,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:21:52,049 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-03-20 17:22:01,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:22:01,300 INFO L93 Difference]: Finished difference Result 965 states and 1308 transitions. [2022-03-20 17:22:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 17:22:01,300 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 17:22:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:22:01,306 INFO L225 Difference]: With dead ends: 965 [2022-03-20 17:22:01,306 INFO L226 Difference]: Without dead ends: 539 [2022-03-20 17:22:01,307 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 44.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-03-20 17:22:01,308 INFO L913 BasicCegarLoop]: 532 mSDtfsCounter, 282 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 124 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2022-03-20 17:22:01,308 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 1063 Invalid, 1571 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [124 Valid, 1443 Invalid, 4 Unknown, 0 Unchecked, 29.9s Time] [2022-03-20 17:22:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-03-20 17:22:01,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 438. [2022-03-20 17:22:01,874 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 17:22:01,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 581 transitions. [2022-03-20 17:22:01,877 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 581 transitions. Word has length 26 [2022-03-20 17:22:01,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:22:01,877 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 581 transitions. [2022-03-20 17:22:01,877 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 17:22:01,877 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 581 transitions. [2022-03-20 17:22:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-03-20 17:22:01,878 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:22:01,878 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 17:22:01,878 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-20 17:22:01,878 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:22:01,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:22:01,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1297863630, now seen corresponding path program 1 times [2022-03-20 17:22:01,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:22:01,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1610140416] [2022-03-20 17:22:01,891 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:22:01,891 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:22:01,891 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:22:01,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1297863630, now seen corresponding path program 2 times [2022-03-20 17:22:01,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:22:01,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416898627] [2022-03-20 17:22:01,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:22:01,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:22:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:22:18,046 WARN L232 SmtUtils]: Spent 15.15s 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 17:22:18,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:22:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:22:18,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:22:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:22:18,466 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 17:22:18,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:22:18,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416898627] [2022-03-20 17:22:18,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416898627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:22:18,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:22:18,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:22:18,467 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:22:18,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1610140416] [2022-03-20 17:22:18,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1610140416] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:22:18,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:22:18,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-20 17:22:18,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171489980] [2022-03-20 17:22:18,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:22:18,470 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-20 17:22:18,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:22:18,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-20 17:22:18,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-20 17:22:18,471 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 17:22:33,848 WARN L232 SmtUtils]: Spent 15.20s 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 17:22:35,944 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 17:22:49,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:22:49,941 INFO L93 Difference]: Finished difference Result 557 states and 762 transitions. [2022-03-20 17:22:49,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 17:22:49,942 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 17:22:49,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:22:49,944 INFO L225 Difference]: With dead ends: 557 [2022-03-20 17:22:49,944 INFO L226 Difference]: Without dead ends: 537 [2022-03-20 17:22:49,945 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-20 17:22:49,946 INFO L913 BasicCegarLoop]: 533 mSDtfsCounter, 485 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 243 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 1038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:22:49,946 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [507 Valid, 794 Invalid, 1038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [243 Valid, 794 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2022-03-20 17:22:49,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-03-20 17:22:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 438. [2022-03-20 17:22:50,608 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 17:22:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 580 transitions. [2022-03-20 17:22:50,610 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 580 transitions. Word has length 30 [2022-03-20 17:22:50,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:22:50,610 INFO L478 AbstractCegarLoop]: Abstraction has 438 states and 580 transitions. [2022-03-20 17:22:50,610 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 17:22:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 580 transitions. [2022-03-20 17:22:50,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-03-20 17:22:50,611 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:22:50,611 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 17:22:50,611 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-20 17:22:50,611 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:22:50,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:22:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1464136845, now seen corresponding path program 1 times [2022-03-20 17:22:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:22:50,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2052818878] [2022-03-20 17:22:50,612 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:22:50,612 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:22:50,613 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:22:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1464136845, now seen corresponding path program 2 times [2022-03-20 17:22:50,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:22:50,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162185712] [2022-03-20 17:22:50,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:22:50,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:22:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:23:07,813 WARN L232 SmtUtils]: Spent 15.34s 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 17:23:07,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:23:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:23:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:23:08,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:23:08,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:23:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:23:08,272 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 17:23:08,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:23:08,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162185712] [2022-03-20 17:23:08,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162185712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:23:08,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:23:08,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:23:08,273 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:23:08,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2052818878] [2022-03-20 17:23:08,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2052818878] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:23:08,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:23:08,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:23:08,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172405237] [2022-03-20 17:23:08,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:23:08,274 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 17:23:08,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:23:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 17:23:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:23:08,274 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 17:23:24,227 WARN L232 SmtUtils]: Spent 15.76s 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 17:23:26,339 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 17:23:44,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:23:47,309 WARN L534 Checker$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 17:23:48,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:23:48,658 INFO L93 Difference]: Finished difference Result 1142 states and 1574 transitions. [2022-03-20 17:23:48,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-20 17:23:48,658 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 17:23:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:23:48,662 INFO L225 Difference]: With dead ends: 1142 [2022-03-20 17:23:48,662 INFO L226 Difference]: Without dead ends: 853 [2022-03-20 17:23:48,664 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.6s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 17:23:48,664 INFO L913 BasicCegarLoop]: 729 mSDtfsCounter, 1112 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 386 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2022-03-20 17:23:48,664 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1141 Valid, 1027 Invalid, 1732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [386 Valid, 1343 Invalid, 3 Unknown, 0 Unchecked, 22.5s Time] [2022-03-20 17:23:48,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-03-20 17:23:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 696. [2022-03-20 17:23:49,642 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 17:23:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 943 transitions. [2022-03-20 17:23:49,646 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 943 transitions. Word has length 35 [2022-03-20 17:23:49,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:23:49,646 INFO L478 AbstractCegarLoop]: Abstraction has 696 states and 943 transitions. [2022-03-20 17:23:49,646 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 17:23:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 943 transitions. [2022-03-20 17:23:49,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 17:23:49,648 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:23:49,648 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 17:23:49,648 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-20 17:23:49,648 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:23:49,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:23:49,648 INFO L85 PathProgramCache]: Analyzing trace with hash 5168989, now seen corresponding path program 1 times [2022-03-20 17:23:49,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:23:49,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [792218178] [2022-03-20 17:23:49,649 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:23:49,649 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:23:49,649 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:23:49,650 INFO L85 PathProgramCache]: Analyzing trace with hash 5168989, now seen corresponding path program 2 times [2022-03-20 17:23:49,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:23:49,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938042879] [2022-03-20 17:23:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:23:49,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:23:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:06,966 WARN L232 SmtUtils]: Spent 15.38s 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 17:24:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:24:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:24:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:24:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:07,503 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 17:24:07,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:24:07,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938042879] [2022-03-20 17:24:07,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938042879] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:24:07,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:24:07,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:24:07,506 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:24:07,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [792218178] [2022-03-20 17:24:07,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [792218178] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:24:07,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:24:07,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:24:07,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073276231] [2022-03-20 17:24:07,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:24:07,508 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 17:24:07,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:24:07,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 17:24:07,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:24:07,508 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 17:24:23,237 WARN L232 SmtUtils]: Spent 15.46s 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 17:24:25,349 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:24:40,027 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:24:41,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:24:41,859 INFO L93 Difference]: Finished difference Result 1247 states and 1733 transitions. [2022-03-20 17:24:41,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 17:24:41,860 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 17:24:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:24:41,863 INFO L225 Difference]: With dead ends: 1247 [2022-03-20 17:24:41,863 INFO L226 Difference]: Without dead ends: 675 [2022-03-20 17:24:41,865 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-03-20 17:24:41,866 INFO L913 BasicCegarLoop]: 456 mSDtfsCounter, 637 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 187 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-03-20 17:24:41,866 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [658 Valid, 548 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 876 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2022-03-20 17:24:41,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2022-03-20 17:24:42,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 628. [2022-03-20 17:24:42,715 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 17:24:42,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 853 transitions. [2022-03-20 17:24:42,718 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 853 transitions. Word has length 45 [2022-03-20 17:24:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:24:42,720 INFO L478 AbstractCegarLoop]: Abstraction has 628 states and 853 transitions. [2022-03-20 17:24:42,720 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 17:24:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 853 transitions. [2022-03-20 17:24:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-03-20 17:24:42,726 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:24:42,726 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 17:24:42,727 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-20 17:24:42,727 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:24:42,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:24:42,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1041269887, now seen corresponding path program 1 times [2022-03-20 17:24:42,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:24:42,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [686553595] [2022-03-20 17:24:42,729 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:24:42,729 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:24:42,729 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:24:42,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1041269887, now seen corresponding path program 2 times [2022-03-20 17:24:42,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:24:42,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320392633] [2022-03-20 17:24:42,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:24:42,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:24:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:59,630 WARN L232 SmtUtils]: Spent 15.26s 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 17:24:59,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:24:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:24:59,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:24:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:25:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:00,042 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 17:25:00,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:25:00,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320392633] [2022-03-20 17:25:00,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320392633] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:25:00,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:25:00,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:25:00,043 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:25:00,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [686553595] [2022-03-20 17:25:00,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [686553595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:25:00,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:25:00,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-20 17:25:00,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142302917] [2022-03-20 17:25:00,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:25:00,043 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-20 17:25:00,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:25:00,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-20 17:25:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-20 17:25:00,044 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 17:25:15,227 WARN L232 SmtUtils]: Spent 14.92s 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 17:25:17,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:25:35,750 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:25:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:25:37,734 INFO L93 Difference]: Finished difference Result 724 states and 991 transitions. [2022-03-20 17:25:37,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-20 17:25:37,734 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 17:25:37,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:25:37,737 INFO L225 Difference]: With dead ends: 724 [2022-03-20 17:25:37,737 INFO L226 Difference]: Without dead ends: 720 [2022-03-20 17:25:37,737 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-20 17:25:37,738 INFO L913 BasicCegarLoop]: 514 mSDtfsCounter, 265 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 102 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-03-20 17:25:37,738 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [283 Valid, 838 Invalid, 1310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [102 Valid, 1206 Invalid, 2 Unknown, 0 Unchecked, 21.1s Time] [2022-03-20 17:25:37,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2022-03-20 17:25:38,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 658. [2022-03-20 17:25:38,698 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 17:25:38,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 893 transitions. [2022-03-20 17:25:38,700 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 893 transitions. Word has length 45 [2022-03-20 17:25:38,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:25:38,701 INFO L478 AbstractCegarLoop]: Abstraction has 658 states and 893 transitions. [2022-03-20 17:25:38,701 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 17:25:38,701 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 893 transitions. [2022-03-20 17:25:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-03-20 17:25:38,702 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:25:38,702 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 17:25:38,702 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-20 17:25:38,702 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:25:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:25:38,702 INFO L85 PathProgramCache]: Analyzing trace with hash 221945446, now seen corresponding path program 1 times [2022-03-20 17:25:38,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:25:38,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [234160070] [2022-03-20 17:25:38,705 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:25:38,705 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:25:38,705 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:25:38,705 INFO L85 PathProgramCache]: Analyzing trace with hash 221945446, now seen corresponding path program 2 times [2022-03-20 17:25:38,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:25:38,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953573424] [2022-03-20 17:25:38,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:25:38,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:25:39,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,064 WARN L232 SmtUtils]: Spent 14.81s 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 17:25:55,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:25:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:25:55,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:25:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-03-20 17:25:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 17:25:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:25:55,767 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 17:25:55,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:25:55,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953573424] [2022-03-20 17:25:55,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953573424] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:25:55,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:25:55,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 17:25:55,768 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:25:55,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [234160070] [2022-03-20 17:25:55,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [234160070] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:25:55,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:25:55,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 17:25:55,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101095900] [2022-03-20 17:25:55,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:25:55,769 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 17:25:55,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:25:55,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 17:25:55,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 17:25:55,770 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 17:26:11,226 WARN L232 SmtUtils]: Spent 15.39s 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 17:26:26,749 WARN L232 SmtUtils]: Spent 15.22s 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 17:26:42,038 WARN L232 SmtUtils]: Spent 15.17s 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 17:26:44,179 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:26:46,229 WARN L534 Checker$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 17:26:48,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:26:50,534 WARN L534 Checker$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 17:26:52,555 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:26:54,576 WARN L534 Checker$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 17:26:56,614 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 17:27:12,362 WARN L232 SmtUtils]: Spent 15.37s 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 17:27:28,555 WARN L232 SmtUtils]: Spent 15.41s 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 17:28:06,929 WARN L232 SmtUtils]: Spent 31.62s 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 17:28:24,720 WARN L232 SmtUtils]: Spent 16.04s 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 17:28:34,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:28:34,101 INFO L93 Difference]: Finished difference Result 807 states and 1121 transitions. [2022-03-20 17:28:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-20 17:28:34,101 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 17:28:34,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:28:34,105 INFO L225 Difference]: With dead ends: 807 [2022-03-20 17:28:34,105 INFO L226 Difference]: Without dead ends: 796 [2022-03-20 17:28:34,105 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 140.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-03-20 17:28:34,106 INFO L913 BasicCegarLoop]: 403 mSDtfsCounter, 1273 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 679 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 2274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 679 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time [2022-03-20 17:28:34,106 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [1314 Valid, 940 Invalid, 2274 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [679 Valid, 1588 Invalid, 7 Unknown, 0 Unchecked, 30.8s Time] [2022-03-20 17:28:34,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2022-03-20 17:28:35,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 680. [2022-03-20 17:28:35,355 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 17:28:35,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 920 transitions. [2022-03-20 17:28:35,357 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 920 transitions. Word has length 49 [2022-03-20 17:28:35,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:28:35,357 INFO L478 AbstractCegarLoop]: Abstraction has 680 states and 920 transitions. [2022-03-20 17:28:35,357 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 17:28:35,357 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 920 transitions. [2022-03-20 17:28:35,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-03-20 17:28:35,358 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:28:35,358 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 17:28:35,358 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-20 17:28:35,358 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:28:35,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:28:35,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2146360932, now seen corresponding path program 1 times [2022-03-20 17:28:35,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:35,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2045226085] [2022-03-20 17:28:35,360 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:28:35,360 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:28:35,360 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:28:35,360 INFO L85 PathProgramCache]: Analyzing trace with hash -2146360932, now seen corresponding path program 2 times [2022-03-20 17:28:35,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:28:35,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023458479] [2022-03-20 17:28:35,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:28:35,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:28:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:52,610 WARN L232 SmtUtils]: Spent 15.49s 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 17:28:52,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:28:52,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:28:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:28:53,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:53,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-03-20 17:28:53,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:53,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-03-20 17:28:53,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:28:53,262 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 17:28:53,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:28:53,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023458479] [2022-03-20 17:28:53,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023458479] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:53,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:53,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 17:28:53,263 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:28:53,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2045226085] [2022-03-20 17:28:53,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2045226085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:28:53,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:28:53,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-03-20 17:28:53,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793291820] [2022-03-20 17:28:53,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:28:53,264 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-20 17:28:53,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:28:53,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-20 17:28:53,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-03-20 17:28:53,264 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 17:29:08,803 WARN L232 SmtUtils]: Spent 15.46s 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 17:29:24,778 WARN L232 SmtUtils]: Spent 15.57s 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 17:29:40,722 WARN L232 SmtUtils]: Spent 15.80s 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 17:29:42,857 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 17:29:44,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:46,953 WARN L534 Checker$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 17:29:49,223 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:29:51,261 WARN L534 Checker$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 17:29:53,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:30:09,194 WARN L232 SmtUtils]: Spent 15.51s on a formula simplification that was a NOOP. DAG size: 2043 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 17:30:25,363 WARN L232 SmtUtils]: Spent 15.17s on a formula simplification that was a NOOP. DAG size: 2034 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 17:31:03,056 WARN L232 SmtUtils]: Spent 30.27s on a formula simplification. DAG size of input: 2046 DAG size of output: 2044 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 17:31:20,145 WARN L232 SmtUtils]: Spent 15.29s on a formula simplification that was a NOOP. DAG size: 2045 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-20 17:31:34,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-03-20 17:31:36,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:31:36,766 INFO L93 Difference]: Finished difference Result 798 states and 1106 transitions. [2022-03-20 17:31:36,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-20 17:31:36,767 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 50 [2022-03-20 17:31:36,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:31:36,770 INFO L225 Difference]: With dead ends: 798 [2022-03-20 17:31:36,770 INFO L226 Difference]: Without dead ends: 790 [2022-03-20 17:31:36,770 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 140.1s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-03-20 17:31:36,771 INFO L913 BasicCegarLoop]: 417 mSDtfsCounter, 934 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 399 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 2372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.0s IncrementalHoareTripleChecker+Time [2022-03-20 17:31:36,771 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [975 Valid, 922 Invalid, 2372 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [399 Valid, 1966 Invalid, 7 Unknown, 0 Unchecked, 37.0s Time] [2022-03-20 17:31:36,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2022-03-20 17:31:38,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 680. [2022-03-20 17:31:38,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 479 states have (on average 1.302713987473904) internal successors, (624), 491 states have internal predecessors, (624), 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 17:31:38,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 919 transitions. [2022-03-20 17:31:38,130 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 919 transitions. Word has length 50 [2022-03-20 17:31:38,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-20 17:31:38,131 INFO L478 AbstractCegarLoop]: Abstraction has 680 states and 919 transitions. [2022-03-20 17:31:38,131 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has 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 17:31:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 919 transitions. [2022-03-20 17:31:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-20 17:31:38,132 INFO L491 BasicCegarLoop]: Found error trace [2022-03-20 17:31:38,132 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, 1, 1, 1] [2022-03-20 17:31:38,132 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-20 17:31:38,132 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-20 17:31:38,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-20 17:31:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash 138187352, now seen corresponding path program 1 times [2022-03-20 17:31:38,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-20 17:31:38,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1784597410] [2022-03-20 17:31:38,133 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 0 HavocedVariables, 3 AssignedVariables, -1 ReadonlyVariables, Eigenvalues: {}, 0 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-03-20 17:31:38,133 WARN L91 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2022-03-20 17:31:38,133 INFO L274 tedInterpolationCore]: Could not compute an accelerate. [2022-03-20 17:31:38,133 INFO L85 PathProgramCache]: Analyzing trace with hash 138187352, now seen corresponding path program 2 times [2022-03-20 17:31:38,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-20 17:31:38,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240853764] [2022-03-20 17:31:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-20 17:31:38,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-20 17:31:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,058 WARN L232 SmtUtils]: Spent 15.73s 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 17:31:56,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-20 17:31:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-03-20 17:31:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-03-20 17:31:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-03-20 17:31:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-03-20 17:31:56,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-20 17:31:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-20 17:31:56,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-20 17:31:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240853764] [2022-03-20 17:31:56,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240853764] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-20 17:31:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52616271] [2022-03-20 17:31:56,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-20 17:31:56,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-20 17:31:56,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-20 17:31:56,607 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-20 17:31:56,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-20 17:32:01,055 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-03-20 17:32:01,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-20 17:32:01,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 12847 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-20 17:32:01,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-20 17:32:01,494 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 17:32:01,495 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-20 17:32:01,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52616271] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:01,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-20 17:32:01,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-03-20 17:32:01,496 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-20 17:32:01,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1784597410] [2022-03-20 17:32:01,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1784597410] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-20 17:32:01,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-20 17:32:01,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-20 17:32:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111327514] [2022-03-20 17:32:01,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-20 17:32:01,496 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-20 17:32:01,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-20 17:32:01,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-20 17:32:01,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 17:32:01,497 INFO L87 Difference]: Start difference. First operand 680 states and 919 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-03-20 17:32:03,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-20 17:32:03,929 INFO L93 Difference]: Finished difference Result 1540 states and 2149 transitions. [2022-03-20 17:32:03,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-20 17:32:03,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 53 [2022-03-20 17:32:03,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-20 17:32:03,933 INFO L225 Difference]: With dead ends: 1540 [2022-03-20 17:32:03,934 INFO L226 Difference]: Without dead ends: 1055 [2022-03-20 17:32:03,936 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-03-20 17:32:03,936 INFO L913 BasicCegarLoop]: 637 mSDtfsCounter, 463 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-20 17:32:03,936 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [463 Valid, 957 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-20 17:32:03,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states.