/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 IntervalDomain -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 01:49:38,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:49:38,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:49:38,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:49:38,993 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:49:38,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:49:38,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:49:39,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:49:39,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:49:39,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:49:39,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:49:39,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:49:39,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:49:39,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:49:39,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:49:39,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:49:39,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:49:39,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:49:39,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:49:39,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:49:39,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:49:39,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:49:39,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:49:39,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:49:39,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:49:39,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:49:39,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:49:39,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:49:39,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:49:39,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:49:39,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:49:39,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:49:39,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:49:39,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:49:39,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:49:39,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:49:39,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:49:39,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:49:39,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:49:39,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:49:39,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:49:39,041 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 01:49:39,074 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:49:39,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:49:39,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:49:39,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:49:39,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:49:39,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:49:39,077 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:49:39,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:49:39,077 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:49:39,077 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:49:39,078 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:49:39,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:49:39,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:49:39,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:49:39,079 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:49:39,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:49:39,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:49:39,079 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:49:39,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:49:39,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:49:39,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:49:39,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:49:39,081 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:49:39,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:49:39,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:49:39,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:49:39,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:49:39,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:49:39,083 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:49:39,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:49:39,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:49:39,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:49:39,327 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:49:39,327 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:49:39,329 INFO L432 ainManager$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 01:49:40,470 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:49:40,920 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:49:40,921 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 01:49:40,953 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a671ad4d/79d03201cb32401d9a2e06bdc19c3e61/FLAG038295046 [2023-04-01 01:49:40,970 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a671ad4d/79d03201cb32401d9a2e06bdc19c3e61 [2023-04-01 01:49:40,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:49:40,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:49:40,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:49:40,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:49:40,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:49:40,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:49:40" (1/1) ... [2023-04-01 01:49:40,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b02c262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:40, skipping insertion in model container [2023-04-01 01:49:40,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:49:40" (1/1) ... [2023-04-01 01:49:40,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:49:41,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:49:41,906 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 01:49:41,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:49:41,986 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:49:42,174 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 01:49:42,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:49:42,222 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:49:42,228 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:49:42,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42 WrapperNode [2023-04-01 01:49:42,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:49:42,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:49:42,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:49:42,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:49:42,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,357 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:49:42,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:49:42,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:49:42,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:49:42,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (1/1) ... [2023-04-01 01:49:42,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:49:42,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:49:42,419 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 01:49:42,444 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 01:49:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:49:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:49:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-01 01:49:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 01:49:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_open [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unlocked_ioctl [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_get_adapter [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_drvrcmd [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mimd_to_kioc [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2023-04-01 01:49:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_alloc_kioc [2023-04-01 01:49:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2023-04-01 01:49:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_ioctl [2023-04-01 01:49:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_done [2023-04-01 01:49:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_timedout [2023-04-01 01:49:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure kioc_to_mimd [2023-04-01 01:49:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure hinfo_to_cinfo [2023-04-01 01:49:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_register_adp [2023-04-01 01:49:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_adapter_app_handle [2023-04-01 01:49:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_setup_dma_pools [2023-04-01 01:49:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unregister_adp [2023-04-01 01:49:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_free_adp_resources [2023-04-01 01:49:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_teardown_dma_pools [2023-04-01 01:49:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_init [2023-04-01 01:49:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_compat_ioctl [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_exit [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-01 01:49:42,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:49:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 01:49:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:49:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_24 [2023-04-01 01:49:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_25 [2023-04-01 01:49:42,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_26 [2023-04-01 01:49:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_27 [2023-04-01 01:49:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_28 [2023-04-01 01:49:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_29 [2023-04-01 01:49:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:49:42,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-01 01:49:42,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 01:49:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 01:49:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-01 01:49:42,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-01 01:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-01 01:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 01:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 01:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 01:49:42,473 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 01:49:42,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 01:49:42,475 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 01:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-04-01 01:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:49:42,476 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:49:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:49:42,476 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:49:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:49:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:49:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:49:42,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:49:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:49:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 01:49:42,478 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-01 01:49:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-01 01:49:42,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-01 01:49:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-01 01:49:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:49:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:49:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:49:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:49:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:49:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:49:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:49:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:49:42,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 01:49:42,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 01:49:42,488 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_25 [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-04-01 01:49:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure down [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 01:49:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-01 01:49:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-01 01:49:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 01:49:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 01:49:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2023-04-01 01:49:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-04-01 01:49:42,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_24 [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_26 [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_27 [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_28 [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_29 [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_register_adp [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unregister_adp [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_adapter_app_handle [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_open [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unlocked_ioctl [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure mimd_to_kioc [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure kioc_to_mimd [2023-04-01 01:49:42,493 INFO L130 BoogieDeclarations]: Found specification of procedure handle_drvrcmd [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure lld_ioctl [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_done [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure lld_timedout [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure hinfo_to_cinfo [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_get_adapter [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_alloc_kioc [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_setup_dma_pools [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_free_adp_resources [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_teardown_dma_pools [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_compat_ioctl [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2023-04-01 01:49:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_init [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_exit [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:49:42,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:49:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:49:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:49:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:49:43,010 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:49:43,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:49:43,100 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:49:47,310 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:49:47,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:49:47,639 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 01:49:47,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:49:47 BoogieIcfgContainer [2023-04-01 01:49:47,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:49:47,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:49:47,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:49:47,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:49:47,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:49:40" (1/3) ... [2023-04-01 01:49:47,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad63826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:49:47, skipping insertion in model container [2023-04-01 01:49:47,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:49:42" (2/3) ... [2023-04-01 01:49:47,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad63826 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:49:47, skipping insertion in model container [2023-04-01 01:49:47,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:49:47" (3/3) ... [2023-04-01 01:49:47,653 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 01:49:47,668 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:49:47,668 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:49:47,740 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:49:47,746 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;@26fa31d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:49:47,746 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:49:47,756 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 01:49:47,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-01 01:49:47,788 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:47,789 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 01:49:47,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:47,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:47,794 INFO L85 PathProgramCache]: Analyzing trace with hash 384831095, now seen corresponding path program 1 times [2023-04-01 01:49:47,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:47,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279520626] [2023-04-01 01:49:47,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:47,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:48,452 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 01:49:48,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279520626] [2023-04-01 01:49:48,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279520626] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:48,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:48,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-01 01:49:48,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702505299] [2023-04-01 01:49:48,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:48,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-01 01:49:48,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:48,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-01 01:49:48,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-01 01:49:48,509 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 01:49:48,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:48,967 INFO L93 Difference]: Finished difference Result 997 states and 1293 transitions. [2023-04-01 01:49:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-01 01:49:48,969 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 01:49:48,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:48,981 INFO L225 Difference]: With dead ends: 997 [2023-04-01 01:49:48,981 INFO L226 Difference]: Without dead ends: 484 [2023-04-01 01:49:48,986 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 01:49:48,989 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:48,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:49:49,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-04-01 01:49:49,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2023-04-01 01:49:49,050 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 01:49:49,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2023-04-01 01:49:49,054 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 621 transitions. Word has length 197 [2023-04-01 01:49:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:49,056 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 621 transitions. [2023-04-01 01:49:49,056 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 01:49:49,056 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 621 transitions. [2023-04-01 01:49:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-01 01:49:49,061 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:49,061 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 01:49:49,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:49:49,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:49,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:49,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1979638675, now seen corresponding path program 1 times [2023-04-01 01:49:49,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:49,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042072421] [2023-04-01 01:49:49,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:49,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:49,390 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 01:49:49,391 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:49,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042072421] [2023-04-01 01:49:49,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042072421] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:49,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:49,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:49:49,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788890242] [2023-04-01 01:49:49,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:49,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:49:49,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:49:49,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:49:49,397 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 01:49:50,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:50,042 INFO L93 Difference]: Finished difference Result 995 states and 1278 transitions. [2023-04-01 01:49:50,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:49:50,043 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 01:49:50,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:50,047 INFO L225 Difference]: With dead ends: 995 [2023-04-01 01:49:50,047 INFO L226 Difference]: Without dead ends: 533 [2023-04-01 01:49:50,049 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 01:49:50,050 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 79 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:50,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1048 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:49:50,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-04-01 01:49:50,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 526. [2023-04-01 01:49:50,083 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 01:49:50,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 675 transitions. [2023-04-01 01:49:50,086 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 675 transitions. Word has length 192 [2023-04-01 01:49:50,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:50,087 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 675 transitions. [2023-04-01 01:49:50,087 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 01:49:50,087 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 675 transitions. [2023-04-01 01:49:50,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-04-01 01:49:50,091 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:50,091 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 01:49:50,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:49:50,092 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:50,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:50,092 INFO L85 PathProgramCache]: Analyzing trace with hash 927322480, now seen corresponding path program 1 times [2023-04-01 01:49:50,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172266201] [2023-04-01 01:49:50,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:50,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:50,549 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 01:49:50,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:50,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172266201] [2023-04-01 01:49:50,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172266201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:50,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:50,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 01:49:50,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316641124] [2023-04-01 01:49:50,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:50,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 01:49:50,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:50,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 01:49:50,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 01:49:50,553 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 01:49:52,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:52,164 INFO L93 Difference]: Finished difference Result 1027 states and 1334 transitions. [2023-04-01 01:49:52,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:49:52,164 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 01:49:52,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:52,168 INFO L225 Difference]: With dead ends: 1027 [2023-04-01 01:49:52,169 INFO L226 Difference]: Without dead ends: 526 [2023-04-01 01:49:52,170 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 01:49:52,174 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 591 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:52,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 828 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 01:49:52,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-04-01 01:49:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-04-01 01:49:52,222 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 01:49:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 666 transitions. [2023-04-01 01:49:52,226 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 666 transitions. Word has length 245 [2023-04-01 01:49:52,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:52,227 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 666 transitions. [2023-04-01 01:49:52,227 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 01:49:52,228 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 666 transitions. [2023-04-01 01:49:52,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-04-01 01:49:52,233 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:52,233 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 01:49:52,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:49:52,233 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:52,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:52,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1509887238, now seen corresponding path program 1 times [2023-04-01 01:49:52,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:52,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80708051] [2023-04-01 01:49:52,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:52,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:52,579 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 01:49:52,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:52,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80708051] [2023-04-01 01:49:52,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80708051] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:52,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:52,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:49:52,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793857376] [2023-04-01 01:49:52,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:52,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:49:52,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:52,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:49:52,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:49:52,582 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 01:49:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:54,027 INFO L93 Difference]: Finished difference Result 1089 states and 1384 transitions. [2023-04-01 01:49:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:49:54,028 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 01:49:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:54,032 INFO L225 Difference]: With dead ends: 1089 [2023-04-01 01:49:54,032 INFO L226 Difference]: Without dead ends: 588 [2023-04-01 01:49:54,034 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 01:49:54,035 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 98 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:54,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1068 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 01:49:54,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-01 01:49:54,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 581. [2023-04-01 01:49:54,067 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 01:49:54,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 734 transitions. [2023-04-01 01:49:54,070 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 734 transitions. Word has length 258 [2023-04-01 01:49:54,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:54,071 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 734 transitions. [2023-04-01 01:49:54,071 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 01:49:54,071 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 734 transitions. [2023-04-01 01:49:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-04-01 01:49:54,075 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:54,075 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 01:49:54,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:49:54,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:54,076 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1428030997, now seen corresponding path program 1 times [2023-04-01 01:49:54,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:54,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123147222] [2023-04-01 01:49:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:54,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:54,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:54,453 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 01:49:54,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:54,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123147222] [2023-04-01 01:49:54,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123147222] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:54,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:54,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:49:54,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912646228] [2023-04-01 01:49:54,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:54,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:49:54,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:54,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:49:54,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:49:54,456 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 01:49:55,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:55,434 INFO L93 Difference]: Finished difference Result 1148 states and 1465 transitions. [2023-04-01 01:49:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:49:55,435 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 01:49:55,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:55,439 INFO L225 Difference]: With dead ends: 1148 [2023-04-01 01:49:55,439 INFO L226 Difference]: Without dead ends: 592 [2023-04-01 01:49:55,441 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 01:49:55,442 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 8 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:55,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1075 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 01:49:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-04-01 01:49:55,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 582. [2023-04-01 01:49:55,465 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 01:49:55,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-01 01:49:55,468 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 274 [2023-04-01 01:49:55,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:55,469 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-01 01:49:55,469 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 01:49:55,469 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-01 01:49:55,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-01 01:49:55,473 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:55,473 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 01:49:55,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:49:55,473 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:55,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:55,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1494024553, now seen corresponding path program 1 times [2023-04-01 01:49:55,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:55,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98858475] [2023-04-01 01:49:55,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:55,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:55,721 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 01:49:55,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:55,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98858475] [2023-04-01 01:49:55,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98858475] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:55,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:49:55,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:49:55,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406579733] [2023-04-01 01:49:55,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:55,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:49:55,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:55,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:49:55,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:49:55,724 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 01:49:56,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:49:56,866 INFO L93 Difference]: Finished difference Result 1145 states and 1459 transitions. [2023-04-01 01:49:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:49:56,867 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 01:49:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:49:56,871 INFO L225 Difference]: With dead ends: 1145 [2023-04-01 01:49:56,871 INFO L226 Difference]: Without dead ends: 588 [2023-04-01 01:49:56,873 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 01:49:56,873 INFO L413 NwaCegarLoop]: 538 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 01:49:56,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1073 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 01:49:56,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-01 01:49:56,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 586. [2023-04-01 01:49:56,895 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 01:49:56,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 741 transitions. [2023-04-01 01:49:56,898 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 741 transitions. Word has length 277 [2023-04-01 01:49:56,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:49:56,899 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 741 transitions. [2023-04-01 01:49:56,899 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 01:49:56,899 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 741 transitions. [2023-04-01 01:49:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-01 01:49:56,903 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:49:56,903 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 01:49:56,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:49:56,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:49:56,904 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:49:56,904 INFO L85 PathProgramCache]: Analyzing trace with hash -708837323, now seen corresponding path program 1 times [2023-04-01 01:49:56,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:49:56,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531879772] [2023-04-01 01:49:56,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:56,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:49:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:57,324 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 01:49:57,324 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:49:57,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531879772] [2023-04-01 01:49:57,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531879772] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:49:57,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725171714] [2023-04-01 01:49:57,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:49:57,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:49:57,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:49:57,328 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 01:49:57,329 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 01:49:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:49:58,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 01:49:58,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:49:58,196 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 01:49:58,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:49:58,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725171714] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:49:58,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:49:58,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2023-04-01 01:49:58,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710359774] [2023-04-01 01:49:58,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:49:58,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 01:49:58,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:49:58,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 01:49:58,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-01 01:49:58,210 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 01:50:01,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:50:01,154 INFO L93 Difference]: Finished difference Result 1151 states and 1458 transitions. [2023-04-01 01:50:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 01:50:01,155 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 01:50:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:50:01,159 INFO L225 Difference]: With dead ends: 1151 [2023-04-01 01:50:01,159 INFO L226 Difference]: Without dead ends: 582 [2023-04-01 01:50:01,161 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 01:50:01,161 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s 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, 2.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:50:01,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2675 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-01 01:50:01,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-01 01:50:01,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-01 01:50:01,181 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 01:50:01,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-01 01:50:01,184 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 296 [2023-04-01 01:50:01,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:50:01,185 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-01 01:50:01,185 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 01:50:01,185 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-01 01:50:01,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-01 01:50:01,189 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:50:01,190 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 01:50:01,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 01:50:01,403 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 01:50:01,403 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:50:01,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:50:01,404 INFO L85 PathProgramCache]: Analyzing trace with hash 890121132, now seen corresponding path program 1 times [2023-04-01 01:50:01,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:50:01,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486249737] [2023-04-01 01:50:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:50:01,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:50:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:50:01,759 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 01:50:01,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:50:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486249737] [2023-04-01 01:50:01,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486249737] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:50:01,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614778203] [2023-04-01 01:50:01,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:50:01,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:50:01,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:50:01,761 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 01:50:01,791 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 01:50:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:50:02,557 INFO L262 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 01:50:02,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:50:02,604 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 01:50:02,604 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 01:50:02,926 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 01:50:02,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614778203] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 01:50:02,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1061528401] [2023-04-01 01:50:02,951 INFO L159 IcfgInterpreter]: Started Sifa with 203 locations of interest [2023-04-01 01:50:02,951 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 01:50:02,955 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 01:50:02,959 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 01:50:02,960 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 01:50:07,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 142 for LOIs [2023-04-01 01:50:08,890 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 148 for LOIs [2023-04-01 01:50:21,152 INFO L197 IcfgInterpreter]: Interpreting procedure mraid_mm_open with input of size 107 for LOIs [2023-04-01 01:50:21,335 INFO L197 IcfgInterpreter]: Interpreting procedure capable with input of size 100 for LOIs [2023-04-01 01:50:21,355 INFO L197 IcfgInterpreter]: Interpreting procedure mraid_mm_init with input of size 130 for LOIs [2023-04-01 01:50:22,233 INFO L197 IcfgInterpreter]: Interpreting procedure INIT_LIST_HEAD with input of size 114 for LOIs [2023-04-01 01:50:22,257 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_misc_register_28 with input of size 128 for LOIs [2023-04-01 01:50:22,623 INFO L197 IcfgInterpreter]: Interpreting procedure misc_register with input of size 107 for LOIs [2023-04-01 01:50:22,639 INFO L197 IcfgInterpreter]: Interpreting procedure __init_waitqueue_head with input of size 114 for LOIs [2023-04-01 01:50:22,660 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 114 for LOIs [2023-04-01 01:50:22,825 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 123 for LOIs [2023-04-01 01:50:22,860 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 185 for LOIs [2023-04-01 01:50:22,898 INFO L197 IcfgInterpreter]: Interpreting procedure mraid_mm_compat_ioctl with input of size 144 for LOIs [2023-04-01 01:50:22,975 INFO L197 IcfgInterpreter]: Interpreting procedure mraid_mm_ioctl with input of size 144 for LOIs [2023-04-01 01:50:23,094 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_file_operations_2 with input of size 120 for LOIs [2023-04-01 01:50:23,429 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 108 for LOIs [2023-04-01 01:50:23,998 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 137 for LOIs [2023-04-01 01:50:24,047 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 114 for LOIs [2023-04-01 01:50:24,068 INFO L197 IcfgInterpreter]: Interpreting procedure printk with input of size 125 for LOIs [2023-04-01 01:50:24,093 INFO L180 IcfgInterpreter]: Interpretation finished