/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 14:00:01,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 14:00:01,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 14:00:01,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 14:00:01,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 14:00:01,223 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 14:00:01,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 14:00:01,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 14:00:01,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 14:00:01,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 14:00:01,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 14:00:01,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 14:00:01,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 14:00:01,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 14:00:01,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 14:00:01,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 14:00:01,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 14:00:01,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 14:00:01,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 14:00:01,249 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 14:00:01,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 14:00:01,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 14:00:01,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 14:00:01,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 14:00:01,267 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 14:00:01,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 14:00:01,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 14:00:01,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 14:00:01,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 14:00:01,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 14:00:01,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 14:00:01,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 14:00:01,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 14:00:01,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 14:00:01,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 14:00:01,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 14:00:01,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 14:00:01,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 14:00:01,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 14:00:01,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 14:00:01,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 14:00:01,278 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 14:00:01,307 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 14:00:01,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 14:00:01,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 14:00:01,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 14:00:01,309 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 14:00:01,309 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 14:00:01,309 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 14:00:01,309 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 14:00:01,309 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 14:00:01,309 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 14:00:01,310 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 14:00:01,310 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 14:00:01,310 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 14:00:01,310 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 14:00:01,311 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 14:00:01,311 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 14:00:01,311 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 14:00:01,311 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 14:00:01,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 14:00:01,312 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 14:00:01,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 14:00:01,313 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 14:00:01,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 14:00:01,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 14:00:01,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 14:00:01,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 14:00:01,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 14:00:01,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 14:00:01,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 14:00:01,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 14:00:01,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 14:00:01,558 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 14:00:01,559 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 14:00:01,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2023-04-01 14:00:02,694 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 14:00:03,120 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 14:00:03,121 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2023-04-01 14:00:03,154 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc7512238/ac0056fa5e3741ca9d1e5cd879992cf7/FLAG3227ee65c [2023-04-01 14:00:03,171 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc7512238/ac0056fa5e3741ca9d1e5cd879992cf7 [2023-04-01 14:00:03,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 14:00:03,176 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 14:00:03,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 14:00:03,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 14:00:03,180 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 14:00:03,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 02:00:03" (1/1) ... [2023-04-01 14:00:03,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ad72b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:03, skipping insertion in model container [2023-04-01 14:00:03,182 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 02:00:03" (1/1) ... [2023-04-01 14:00:03,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 14:00:03,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 14:00:04,076 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2023-04-01 14:00:04,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 14:00:04,162 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 14:00:04,370 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2023-04-01 14:00:04,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 14:00:04,418 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 14:00:04,424 INFO L208 MainTranslator]: Completed translation [2023-04-01 14:00:04,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04 WrapperNode [2023-04-01 14:00:04,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 14:00:04,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 14:00:04,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 14:00:04,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 14:00:04,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,617 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 14:00:04,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 14:00:04,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 14:00:04,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 14:00:04,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (1/1) ... [2023-04-01 14:00:04,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 14:00:04,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 14:00:04,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 14:00:04,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 14:00:04,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 14:00:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 14:00:04,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-01 14:00:04,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 14:00:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_open [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unlocked_ioctl [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_get_adapter [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_drvrcmd [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mimd_to_kioc [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_alloc_kioc [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_ioctl [2023-04-01 14:00:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_done [2023-04-01 14:00:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_timedout [2023-04-01 14:00:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure kioc_to_mimd [2023-04-01 14:00:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure hinfo_to_cinfo [2023-04-01 14:00:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_register_adp [2023-04-01 14:00:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_adapter_app_handle [2023-04-01 14:00:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_setup_dma_pools [2023-04-01 14:00:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unregister_adp [2023-04-01 14:00:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_free_adp_resources [2023-04-01 14:00:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_teardown_dma_pools [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_init [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_compat_ioctl [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_exit [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-01 14:00:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 14:00:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 14:00:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 14:00:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_24 [2023-04-01 14:00:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_25 [2023-04-01 14:00:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_26 [2023-04-01 14:00:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_27 [2023-04-01 14:00:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_28 [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_29 [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-01 14:00:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-01 14:00:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-01 14:00:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 14:00:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 14:00:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-01 14:00:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 14:00:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-04-01 14:00:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 14:00:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 14:00:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-04-01 14:00:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 14:00:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 14:00:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 14:00:04,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 14:00:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 14:00:04,735 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 14:00:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 14:00:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 14:00:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 14:00:04,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 14:00:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 14:00:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 14:00:04,737 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-01 14:00:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-01 14:00:04,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-01 14:00:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-01 14:00:04,740 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 14:00:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 14:00:04,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 14:00:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 14:00:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_25 [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-01 14:00:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure down [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 14:00:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-01 14:00:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-01 14:00:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_24 [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_26 [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_27 [2023-04-01 14:00:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_28 [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_29 [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_register_adp [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unregister_adp [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_adapter_app_handle [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_open [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unlocked_ioctl [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure mimd_to_kioc [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure kioc_to_mimd [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure handle_drvrcmd [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure lld_ioctl [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_done [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure lld_timedout [2023-04-01 14:00:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure hinfo_to_cinfo [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_get_adapter [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_alloc_kioc [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_setup_dma_pools [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_free_adp_resources [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_teardown_dma_pools [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_compat_ioctl [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_init [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_exit [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2023-04-01 14:00:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 14:00:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 14:00:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 14:00:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 14:00:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 14:00:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 14:00:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 14:00:05,241 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 14:00:05,252 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 14:00:05,364 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 14:00:09,725 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 14:00:10,066 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 14:00:10,066 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 14:00:10,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 02:00:10 BoogieIcfgContainer [2023-04-01 14:00:10,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 14:00:10,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 14:00:10,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 14:00:10,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 14:00:10,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 02:00:03" (1/3) ... [2023-04-01 14:00:10,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5453b676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 02:00:10, skipping insertion in model container [2023-04-01 14:00:10,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 02:00:04" (2/3) ... [2023-04-01 14:00:10,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5453b676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 02:00:10, skipping insertion in model container [2023-04-01 14:00:10,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 02:00:10" (3/3) ... [2023-04-01 14:00:10,079 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2023-04-01 14:00:10,094 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 14:00:10,094 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 14:00:10,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 14:00:10,174 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5b3e53ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 14:00:10,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 14:00:10,184 INFO L276 IsEmpty]: Start isEmpty. Operand has 683 states, 407 states have (on average 1.3022113022113022) internal successors, (530), 423 states have internal predecessors, (530), 175 states have call successors, (175), 93 states have call predecessors, (175), 92 states have return successors, (172), 171 states have call predecessors, (172), 172 states have call successors, (172) [2023-04-01 14:00:10,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-01 14:00:10,217 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:10,218 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:10,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:10,223 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 384831095, now seen corresponding path program 1 times [2023-04-01 14:00:10,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:10,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285959196] [2023-04-01 14:00:10,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:10,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-04-01 14:00:10,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:10,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285959196] [2023-04-01 14:00:10,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285959196] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:10,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:10,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 14:00:10,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355404760] [2023-04-01 14:00:10,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:10,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 14:00:10,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:10,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 14:00:10,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 14:00:10,974 INFO L87 Difference]: Start difference. First operand has 683 states, 407 states have (on average 1.3022113022113022) internal successors, (530), 423 states have internal predecessors, (530), 175 states have call successors, (175), 93 states have call predecessors, (175), 92 states have return successors, (172), 171 states have call predecessors, (172), 172 states have call successors, (172) Second operand has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 14:00:11,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:11,584 INFO L93 Difference]: Finished difference Result 997 states and 1293 transitions. [2023-04-01 14:00:11,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 14:00:11,587 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2023-04-01 14:00:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:11,600 INFO L225 Difference]: With dead ends: 997 [2023-04-01 14:00:11,601 INFO L226 Difference]: Without dead ends: 484 [2023-04-01 14:00:11,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 14:00:11,610 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:11,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 14:00:11,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-04-01 14:00:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2023-04-01 14:00:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 293 states have (on average 1.3139931740614335) internal successors, (385), 302 states have internal predecessors, (385), 119 states have call successors, (119), 73 states have call predecessors, (119), 71 states have return successors, (117), 117 states have call predecessors, (117), 117 states have call successors, (117) [2023-04-01 14:00:11,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2023-04-01 14:00:11,674 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 621 transitions. Word has length 197 [2023-04-01 14:00:11,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:11,675 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 621 transitions. [2023-04-01 14:00:11,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 14:00:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 621 transitions. [2023-04-01 14:00:11,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-01 14:00:11,680 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:11,681 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:11,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 14:00:11,681 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:11,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:11,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1979638675, now seen corresponding path program 1 times [2023-04-01 14:00:11,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:11,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035987995] [2023-04-01 14:00:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:11,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:12,042 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-04-01 14:00:12,043 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:12,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035987995] [2023-04-01 14:00:12,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035987995] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:12,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:12,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 14:00:12,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37154587] [2023-04-01 14:00:12,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:12,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 14:00:12,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 14:00:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:12,049 INFO L87 Difference]: Start difference. First operand 484 states and 621 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 14:00:12,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:12,911 INFO L93 Difference]: Finished difference Result 995 states and 1278 transitions. [2023-04-01 14:00:12,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 14:00:12,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 192 [2023-04-01 14:00:12,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:12,916 INFO L225 Difference]: With dead ends: 995 [2023-04-01 14:00:12,916 INFO L226 Difference]: Without dead ends: 533 [2023-04-01 14:00:12,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:12,919 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 79 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:12,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1048 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 14:00:12,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-04-01 14:00:12,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 526. [2023-04-01 14:00:12,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 322 states have (on average 1.3198757763975155) internal successors, (425), 333 states have internal predecessors, (425), 126 states have call successors, (126), 80 states have call predecessors, (126), 77 states have return successors, (124), 122 states have call predecessors, (124), 124 states have call successors, (124) [2023-04-01 14:00:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 675 transitions. [2023-04-01 14:00:12,967 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 675 transitions. Word has length 192 [2023-04-01 14:00:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:12,967 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 675 transitions. [2023-04-01 14:00:12,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-01 14:00:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 675 transitions. [2023-04-01 14:00:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-04-01 14:00:12,971 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:12,972 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:12,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 14:00:12,972 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:12,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash 927322480, now seen corresponding path program 1 times [2023-04-01 14:00:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:12,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429970681] [2023-04-01 14:00:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:12,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:13,442 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-04-01 14:00:13,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:13,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429970681] [2023-04-01 14:00:13,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429970681] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:13,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:13,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 14:00:13,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769599676] [2023-04-01 14:00:13,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:13,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 14:00:13,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:13,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 14:00:13,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 14:00:13,447 INFO L87 Difference]: Start difference. First operand 526 states and 675 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-01 14:00:14,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:14,601 INFO L93 Difference]: Finished difference Result 1027 states and 1334 transitions. [2023-04-01 14:00:14,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 14:00:14,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) Word has length 245 [2023-04-01 14:00:14,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:14,605 INFO L225 Difference]: With dead ends: 1027 [2023-04-01 14:00:14,606 INFO L226 Difference]: Without dead ends: 526 [2023-04-01 14:00:14,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 14:00:14,608 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 591 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:14,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 828 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 14:00:14,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-04-01 14:00:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-04-01 14:00:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 322 states have (on average 1.2919254658385093) internal successors, (416), 333 states have internal predecessors, (416), 126 states have call successors, (126), 80 states have call predecessors, (126), 77 states have return successors, (124), 122 states have call predecessors, (124), 124 states have call successors, (124) [2023-04-01 14:00:14,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 666 transitions. [2023-04-01 14:00:14,643 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 666 transitions. Word has length 245 [2023-04-01 14:00:14,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:14,644 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 666 transitions. [2023-04-01 14:00:14,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 4 states have call successors, (34) [2023-04-01 14:00:14,644 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 666 transitions. [2023-04-01 14:00:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-04-01 14:00:14,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:14,649 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:14,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 14:00:14,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:14,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1509887238, now seen corresponding path program 1 times [2023-04-01 14:00:14,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:14,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435341300] [2023-04-01 14:00:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:15,048 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-04-01 14:00:15,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:15,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435341300] [2023-04-01 14:00:15,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435341300] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:15,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:15,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 14:00:15,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410119333] [2023-04-01 14:00:15,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:15,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 14:00:15,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:15,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 14:00:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:15,051 INFO L87 Difference]: Start difference. First operand 526 states and 666 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-01 14:00:16,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:16,640 INFO L93 Difference]: Finished difference Result 1089 states and 1384 transitions. [2023-04-01 14:00:16,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 14:00:16,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 258 [2023-04-01 14:00:16,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:16,644 INFO L225 Difference]: With dead ends: 1089 [2023-04-01 14:00:16,644 INFO L226 Difference]: Without dead ends: 588 [2023-04-01 14:00:16,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:16,647 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 98 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:16,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1068 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 14:00:16,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-01 14:00:16,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 581. [2023-04-01 14:00:16,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 363 states have (on average 1.2947658402203857) internal successors, (470), 376 states have internal predecessors, (470), 133 states have call successors, (133), 88 states have call predecessors, (133), 84 states have return successors, (131), 127 states have call predecessors, (131), 131 states have call successors, (131) [2023-04-01 14:00:16,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 734 transitions. [2023-04-01 14:00:16,679 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 734 transitions. Word has length 258 [2023-04-01 14:00:16,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:16,681 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 734 transitions. [2023-04-01 14:00:16,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-01 14:00:16,681 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 734 transitions. [2023-04-01 14:00:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-04-01 14:00:16,686 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:16,686 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:16,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 14:00:16,687 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:16,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:16,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1428030997, now seen corresponding path program 1 times [2023-04-01 14:00:16,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:16,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885844306] [2023-04-01 14:00:16,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:16,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:17,055 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-01 14:00:17,056 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:17,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885844306] [2023-04-01 14:00:17,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885844306] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:17,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:17,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 14:00:17,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003066899] [2023-04-01 14:00:17,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:17,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 14:00:17,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:17,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 14:00:17,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:17,058 INFO L87 Difference]: Start difference. First operand 581 states and 734 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 14:00:18,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:18,332 INFO L93 Difference]: Finished difference Result 1148 states and 1465 transitions. [2023-04-01 14:00:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 14:00:18,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 274 [2023-04-01 14:00:18,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:18,337 INFO L225 Difference]: With dead ends: 1148 [2023-04-01 14:00:18,337 INFO L226 Difference]: Without dead ends: 592 [2023-04-01 14:00:18,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:18,340 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 8 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:18,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1075 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 14:00:18,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-04-01 14:00:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 582. [2023-04-01 14:00:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 364 states have (on average 1.293956043956044) internal successors, (471), 377 states have internal predecessors, (471), 133 states have call successors, (133), 88 states have call predecessors, (133), 84 states have return successors, (131), 127 states have call predecessors, (131), 131 states have call successors, (131) [2023-04-01 14:00:18,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-01 14:00:18,381 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 274 [2023-04-01 14:00:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:18,382 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-01 14:00:18,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 14:00:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-01 14:00:18,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-01 14:00:18,386 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:18,386 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:18,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 14:00:18,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:18,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1494024553, now seen corresponding path program 1 times [2023-04-01 14:00:18,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:18,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797970656] [2023-04-01 14:00:18,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:18,675 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-04-01 14:00:18,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:18,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797970656] [2023-04-01 14:00:18,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797970656] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:18,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 14:00:18,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 14:00:18,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210474526] [2023-04-01 14:00:18,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:18,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 14:00:18,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:18,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 14:00:18,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:18,678 INFO L87 Difference]: Start difference. First operand 582 states and 735 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 14:00:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:19,645 INFO L93 Difference]: Finished difference Result 1145 states and 1459 transitions. [2023-04-01 14:00:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 14:00:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 277 [2023-04-01 14:00:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:19,652 INFO L225 Difference]: With dead ends: 1145 [2023-04-01 14:00:19,652 INFO L226 Difference]: Without dead ends: 588 [2023-04-01 14:00:19,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 14:00:19,655 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1073 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:19,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1073 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 14:00:19,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-01 14:00:19,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 586. [2023-04-01 14:00:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 368 states have (on average 1.296195652173913) internal successors, (477), 381 states have internal predecessors, (477), 133 states have call successors, (133), 88 states have call predecessors, (133), 84 states have return successors, (131), 127 states have call predecessors, (131), 131 states have call successors, (131) [2023-04-01 14:00:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 741 transitions. [2023-04-01 14:00:19,681 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 741 transitions. Word has length 277 [2023-04-01 14:00:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:19,684 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 741 transitions. [2023-04-01 14:00:19,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 14:00:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 741 transitions. [2023-04-01 14:00:19,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-01 14:00:19,688 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:19,689 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:19,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 14:00:19,689 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:19,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:19,689 INFO L85 PathProgramCache]: Analyzing trace with hash -708837323, now seen corresponding path program 1 times [2023-04-01 14:00:19,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:19,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396359467] [2023-04-01 14:00:19,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:19,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:20,113 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-01 14:00:20,113 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:20,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396359467] [2023-04-01 14:00:20,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396359467] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 14:00:20,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898734706] [2023-04-01 14:00:20,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:20,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 14:00:20,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 14:00:20,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 14:00:20,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 14:00:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:20,847 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 14:00:20,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 14:00:20,991 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-04-01 14:00:20,991 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 14:00:20,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898734706] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 14:00:20,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 14:00:20,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2023-04-01 14:00:20,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958234935] [2023-04-01 14:00:20,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 14:00:20,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 14:00:20,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 14:00:20,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 14:00:20,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-01 14:00:20,993 INFO L87 Difference]: Start difference. First operand 586 states and 741 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 14:00:22,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 14:00:22,826 INFO L93 Difference]: Finished difference Result 1151 states and 1458 transitions. [2023-04-01 14:00:22,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 14:00:22,827 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 296 [2023-04-01 14:00:22,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 14:00:22,831 INFO L225 Difference]: With dead ends: 1151 [2023-04-01 14:00:22,831 INFO L226 Difference]: Without dead ends: 582 [2023-04-01 14:00:22,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-04-01 14:00:22,834 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-01 14:00:22,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2675 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-01 14:00:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-01 14:00:22,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-01 14:00:22,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 365 states have (on average 1.295890410958904) internal successors, (473), 378 states have internal predecessors, (473), 132 states have call successors, (132), 88 states have call predecessors, (132), 84 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2023-04-01 14:00:22,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-01 14:00:22,855 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 296 [2023-04-01 14:00:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 14:00:22,856 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-01 14:00:22,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 14:00:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-01 14:00:22,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-01 14:00:22,860 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 14:00:22,860 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 14:00:22,878 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 14:00:23,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 14:00:23,072 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 14:00:23,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 14:00:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 890121132, now seen corresponding path program 1 times [2023-04-01 14:00:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 14:00:23,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614375944] [2023-04-01 14:00:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:23,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 14:00:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-04-01 14:00:23,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 14:00:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614375944] [2023-04-01 14:00:23,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614375944] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 14:00:23,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420284949] [2023-04-01 14:00:23,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 14:00:23,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 14:00:23,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 14:00:23,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 14:00:23,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 14:00:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 14:00:24,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 14:00:24,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 14:00:24,275 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-04-01 14:00:24,276 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 14:00:24,657 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-04-01 14:00:24,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420284949] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 14:00:24,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1257430007] [2023-04-01 14:00:24,733 INFO L159 IcfgInterpreter]: Started Sifa with 203 locations of interest [2023-04-01 14:00:24,733 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 14:00:24,739 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 14:00:24,743 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 14:00:24,743 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 14:00:59,796 WARN L223 SmtUtils]: Spent 29.31s on a formula simplification. DAG size of input: 1132 DAG size of output: 1132 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)