/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/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 [2023-04-03 06:39:45,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:39:45,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:39:46,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:39:46,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:39:46,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:39:46,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:39:46,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:39:46,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:39:46,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:39:46,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:39:46,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:39:46,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:39:46,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:39:46,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:39:46,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:39:46,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:39:46,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:39:46,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:39:46,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:39:46,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:39:46,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:39:46,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:39:46,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:39:46,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:39:46,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:39:46,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:39:46,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:39:46,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:39:46,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:39:46,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:39:46,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:39:46,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:39:46,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:39:46,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:39:46,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:39:46,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:39:46,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:39:46,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:39:46,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:39:46,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:39:46,039 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 [2023-04-03 06:39:46,051 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:39:46,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:39:46,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:39:46,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:39:46,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:39:46,052 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:39:46,052 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:39:46,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:39:46,052 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:39:46,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:39:46,052 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:39:46,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:39:46,053 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:39:46,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:39:46,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:39:46,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:39:46,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:39:46,055 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:39:46,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:39:46,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:39:46,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:39:46,255 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:39:46,256 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:39:46,257 INFO L432 ainManager$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 [2023-04-03 06:39:47,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:39:47,603 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:39:47,604 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 [2023-04-03 06:39:47,627 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3823119b/7df16bdd5d844e8b83bbd4a43b7081f5/FLAG47904492c [2023-04-03 06:39:47,639 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3823119b/7df16bdd5d844e8b83bbd4a43b7081f5 [2023-04-03 06:39:47,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:39:47,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:39:47,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:39:47,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:39:47,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:39:47,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:39:47" (1/1) ... [2023-04-03 06:39:47,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e172952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:47, skipping insertion in model container [2023-04-03 06:39:47,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:39:47" (1/1) ... [2023-04-03 06:39:47,653 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:39:47,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:39:48,597 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] [2023-04-03 06:39:48,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:39:48,683 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:39:48,809 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] [2023-04-03 06:39:48,814 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:39:48,843 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:39:48,848 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:39:48,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48 WrapperNode [2023-04-03 06:39:48,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:39:48,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:39:48,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:39:48,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:39:48,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:48,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:48,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:48,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:48,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:49,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:49,039 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:49,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:49,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:39:49,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:39:49,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:39:49,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:39:49,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (1/1) ... [2023-04-03 06:39:49,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:39:49,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:39:49,104 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) [2023-04-03 06:39:49,113 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 [2023-04-03 06:39:49,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:39:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:39:49,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:39:49,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-04-03 06:39:49,139 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure sema_init [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_open [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unlocked_ioctl [2023-04-03 06:39:49,140 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_get_adapter [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_drvrcmd [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mimd_to_kioc [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_alloc_kioc [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_ioctl [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_done [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure lld_timedout [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kioc_to_mimd [2023-04-03 06:39:49,141 INFO L138 BoogieDeclarations]: Found implementation of procedure hinfo_to_cinfo [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_register_adp [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_adapter_app_handle [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_setup_dma_pools [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_unregister_adp [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_free_adp_resources [2023-04-03 06:39:49,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_teardown_dma_pools [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_init [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_compat_ioctl [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_exit [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_2 [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-03 06:39:49,143 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:39:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:39:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:39:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_24 [2023-04-03 06:39:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_25 [2023-04-03 06:39:49,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_26 [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dma_pool_alloc_27 [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_register_28 [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_misc_deregister_29 [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:39:49,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:39:49,146 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:39:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure down [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:39:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 06:39:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2023-04-03 06:39:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:39:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:39:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:39:49,150 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:39:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:39:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:39:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:39:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-03 06:39:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:39:49,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:39:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:39:49,154 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:39:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:39:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:39:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:39:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:39:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:39:49,159 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 06:39:49,160 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_25 [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-03 06:39:49,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_2 [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure sema_init [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure down [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure up [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:39:49,162 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:39:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:39:49,163 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_24 [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_26 [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dma_pool_alloc_27 [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_register_28 [2023-04-03 06:39:49,164 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_misc_deregister_29 [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_register_adp [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unregister_adp [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_adapter_app_handle [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_open [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_unlocked_ioctl [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mimd_to_kioc [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure kioc_to_mimd [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure handle_drvrcmd [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure lld_ioctl [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_done [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure lld_timedout [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure hinfo_to_cinfo [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_get_adapter [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_alloc_kioc [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2023-04-03 06:39:49,165 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_setup_dma_pools [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_free_adp_resources [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_teardown_dma_pools [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_compat_ioctl [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~X~~uint32_t~0~TO~int [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_init [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_exit [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:39:49,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:39:49,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:39:49,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:39:49,524 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:39:49,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:39:49,601 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:39:53,494 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:39:53,769 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:39:53,770 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-03 06:39:53,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:39:53 BoogieIcfgContainer [2023-04-03 06:39:53,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:39:53,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:39:53,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:39:53,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:39:53,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:39:47" (1/3) ... [2023-04-03 06:39:53,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3362a56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:39:53, skipping insertion in model container [2023-04-03 06:39:53,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:39:48" (2/3) ... [2023-04-03 06:39:53,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3362a56e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:39:53, skipping insertion in model container [2023-04-03 06:39:53,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:39:53" (3/3) ... [2023-04-03 06:39:53,782 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2023-04-03 06:39:53,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:39:53,795 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:39:53,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:39:53,855 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;@4e02b23e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:39:53,855 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:39:53,861 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) [2023-04-03 06:39:53,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-03 06:39:53,876 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:39:53,876 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] [2023-04-03 06:39:53,877 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:39:53,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:39:53,880 INFO L85 PathProgramCache]: Analyzing trace with hash 384831095, now seen corresponding path program 1 times [2023-04-03 06:39:53,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:39:53,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686176107] [2023-04-03 06:39:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:39:53,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:39:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:39:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-04-03 06:39:54,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:39:54,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686176107] [2023-04-03 06:39:54,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686176107] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:39:54,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:39:54,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-04-03 06:39:54,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704858935] [2023-04-03 06:39:54,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:39:54,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-03 06:39:54,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:39:54,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-03 06:39:54,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-04-03 06:39:54,356 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) [2023-04-03 06:39:54,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:39:54,846 INFO L93 Difference]: Finished difference Result 997 states and 1293 transitions. [2023-04-03 06:39:54,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-03 06:39:54,848 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 [2023-04-03 06:39:54,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:39:54,858 INFO L225 Difference]: With dead ends: 997 [2023-04-03 06:39:54,858 INFO L226 Difference]: Without dead ends: 484 [2023-04-03 06:39:54,863 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 [2023-04-03 06:39:54,865 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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 [2023-04-03 06:39:54,865 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] [2023-04-03 06:39:54,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2023-04-03 06:39:54,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2023-04-03 06:39:54,932 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) [2023-04-03 06:39:54,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 621 transitions. [2023-04-03 06:39:54,935 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 621 transitions. Word has length 197 [2023-04-03 06:39:54,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:39:54,937 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 621 transitions. [2023-04-03 06:39:54,937 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) [2023-04-03 06:39:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 621 transitions. [2023-04-03 06:39:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-03 06:39:54,940 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:39:54,940 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] [2023-04-03 06:39:54,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:39:54,941 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:39:54,941 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:39:54,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1979638675, now seen corresponding path program 1 times [2023-04-03 06:39:54,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:39:54,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793342590] [2023-04-03 06:39:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:39:54,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:39:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:39:55,204 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-04-03 06:39:55,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:39:55,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793342590] [2023-04-03 06:39:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793342590] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:39:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:39:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:39:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898093594] [2023-04-03 06:39:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:39:55,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:39:55,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:39:55,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:39:55,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:39:55,210 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) [2023-04-03 06:39:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:39:55,986 INFO L93 Difference]: Finished difference Result 995 states and 1278 transitions. [2023-04-03 06:39:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:39:55,987 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 [2023-04-03 06:39:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:39:55,990 INFO L225 Difference]: With dead ends: 995 [2023-04-03 06:39:55,990 INFO L226 Difference]: Without dead ends: 533 [2023-04-03 06:39:55,992 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 [2023-04-03 06:39:55,993 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 79 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:39:55,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1048 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 06:39:55,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-04-03 06:39:56,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 526. [2023-04-03 06:39:56,014 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) [2023-04-03 06:39:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 675 transitions. [2023-04-03 06:39:56,017 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 675 transitions. Word has length 192 [2023-04-03 06:39:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:39:56,017 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 675 transitions. [2023-04-03 06:39:56,018 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) [2023-04-03 06:39:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 675 transitions. [2023-04-03 06:39:56,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-04-03 06:39:56,021 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:39:56,021 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] [2023-04-03 06:39:56,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:39:56,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:39:56,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:39:56,022 INFO L85 PathProgramCache]: Analyzing trace with hash 927322480, now seen corresponding path program 1 times [2023-04-03 06:39:56,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:39:56,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712340909] [2023-04-03 06:39:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:39:56,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:39:56,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:39:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-04-03 06:39:56,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:39:56,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712340909] [2023-04-03 06:39:56,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712340909] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:39:56,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:39:56,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:39:56,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733247915] [2023-04-03 06:39:56,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:39:56,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:39:56,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:39:56,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:39:56,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:39:56,331 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) [2023-04-03 06:39:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:39:57,396 INFO L93 Difference]: Finished difference Result 1027 states and 1334 transitions. [2023-04-03 06:39:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:39:57,397 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 [2023-04-03 06:39:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:39:57,400 INFO L225 Difference]: With dead ends: 1027 [2023-04-03 06:39:57,400 INFO L226 Difference]: Without dead ends: 526 [2023-04-03 06:39:57,401 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 [2023-04-03 06:39:57,402 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 591 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:39:57,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 828 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-03 06:39:57,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-04-03 06:39:57,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-04-03 06:39:57,432 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) [2023-04-03 06:39:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 666 transitions. [2023-04-03 06:39:57,435 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 666 transitions. Word has length 245 [2023-04-03 06:39:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:39:57,436 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 666 transitions. [2023-04-03 06:39:57,436 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) [2023-04-03 06:39:57,436 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 666 transitions. [2023-04-03 06:39:57,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2023-04-03 06:39:57,440 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:39:57,440 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] [2023-04-03 06:39:57,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:39:57,441 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:39:57,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:39:57,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1509887238, now seen corresponding path program 1 times [2023-04-03 06:39:57,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:39:57,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835277137] [2023-04-03 06:39:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:39:57,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:39:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:39:57,772 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-04-03 06:39:57,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:39:57,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835277137] [2023-04-03 06:39:57,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835277137] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:39:57,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:39:57,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:39:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802479486] [2023-04-03 06:39:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:39:57,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:39:57,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:39:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:39:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:39:57,774 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) [2023-04-03 06:39:58,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:39:58,826 INFO L93 Difference]: Finished difference Result 1089 states and 1384 transitions. [2023-04-03 06:39:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:39:58,827 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 [2023-04-03 06:39:58,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:39:58,830 INFO L225 Difference]: With dead ends: 1089 [2023-04-03 06:39:58,830 INFO L226 Difference]: Without dead ends: 588 [2023-04-03 06:39:58,832 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 [2023-04-03 06:39:58,832 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 98 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:39:58,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1068 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-03 06:39:58,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-03 06:39:58,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 581. [2023-04-03 06:39:58,851 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) [2023-04-03 06:39:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 734 transitions. [2023-04-03 06:39:58,853 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 734 transitions. Word has length 258 [2023-04-03 06:39:58,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:39:58,854 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 734 transitions. [2023-04-03 06:39:58,854 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) [2023-04-03 06:39:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 734 transitions. [2023-04-03 06:39:58,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-04-03 06:39:58,857 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:39:58,857 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] [2023-04-03 06:39:58,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:39:58,857 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:39:58,857 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:39:58,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1428030997, now seen corresponding path program 1 times [2023-04-03 06:39:58,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:39:58,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041636906] [2023-04-03 06:39:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:39:58,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:39:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:39:59,151 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2023-04-03 06:39:59,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:39:59,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041636906] [2023-04-03 06:39:59,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041636906] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:39:59,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:39:59,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:39:59,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301386870] [2023-04-03 06:39:59,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:39:59,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:39:59,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:39:59,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:39:59,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:39:59,153 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) [2023-04-03 06:40:00,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:40:00,119 INFO L93 Difference]: Finished difference Result 1148 states and 1465 transitions. [2023-04-03 06:40:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:40:00,120 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 [2023-04-03 06:40:00,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:40:00,123 INFO L225 Difference]: With dead ends: 1148 [2023-04-03 06:40:00,123 INFO L226 Difference]: Without dead ends: 592 [2023-04-03 06:40:00,125 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 [2023-04-03 06:40:00,125 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 [2023-04-03 06:40:00,126 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] [2023-04-03 06:40:00,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2023-04-03 06:40:00,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 582. [2023-04-03 06:40:00,143 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) [2023-04-03 06:40:00,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-03 06:40:00,145 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 274 [2023-04-03 06:40:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:40:00,148 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-03 06:40:00,150 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) [2023-04-03 06:40:00,150 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-03 06:40:00,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-03 06:40:00,153 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:40:00,153 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] [2023-04-03 06:40:00,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:40:00,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:40:00,153 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:40:00,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1494024553, now seen corresponding path program 1 times [2023-04-03 06:40:00,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:40:00,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263905777] [2023-04-03 06:40:00,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:40:00,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:40:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:40:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2023-04-03 06:40:00,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:40:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263905777] [2023-04-03 06:40:00,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263905777] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:40:00,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:40:00,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:40:00,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879310717] [2023-04-03 06:40:00,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:40:00,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:40:00,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:40:00,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:40:00,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:40:00,402 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) [2023-04-03 06:40:01,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:40:01,528 INFO L93 Difference]: Finished difference Result 1145 states and 1459 transitions. [2023-04-03 06:40:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:40:01,529 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 [2023-04-03 06:40:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:40:01,532 INFO L225 Difference]: With dead ends: 1145 [2023-04-03 06:40:01,532 INFO L226 Difference]: Without dead ends: 588 [2023-04-03 06:40:01,533 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 [2023-04-03 06:40:01,534 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 [2023-04-03 06:40:01,534 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] [2023-04-03 06:40:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2023-04-03 06:40:01,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 586. [2023-04-03 06:40:01,550 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) [2023-04-03 06:40:01,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 741 transitions. [2023-04-03 06:40:01,553 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 741 transitions. Word has length 277 [2023-04-03 06:40:01,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:40:01,553 INFO L495 AbstractCegarLoop]: Abstraction has 586 states and 741 transitions. [2023-04-03 06:40:01,553 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) [2023-04-03 06:40:01,554 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 741 transitions. [2023-04-03 06:40:01,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2023-04-03 06:40:01,556 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:40:01,557 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] [2023-04-03 06:40:01,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:40:01,557 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:40:01,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:40:01,557 INFO L85 PathProgramCache]: Analyzing trace with hash -708837323, now seen corresponding path program 1 times [2023-04-03 06:40:01,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:40:01,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792008248] [2023-04-03 06:40:01,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:40:01,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:40:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:40:01,845 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 06:40:01,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:40:01,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792008248] [2023-04-03 06:40:01,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792008248] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:40:01,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132519078] [2023-04-03 06:40:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:40:01,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:40:01,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:40:01,848 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) [2023-04-03 06:40:01,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:40:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:40:02,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 2828 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-03 06:40:02,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:40:02,604 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-04-03 06:40:02,604 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:40:02,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132519078] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:40:02,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:40:02,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2023-04-03 06:40:02,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33387815] [2023-04-03 06:40:02,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:40:02,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:40:02,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:40:02,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:40:02,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:40:02,606 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) [2023-04-03 06:40:04,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:40:04,572 INFO L93 Difference]: Finished difference Result 1151 states and 1458 transitions. [2023-04-03 06:40:04,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:40:04,572 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 [2023-04-03 06:40:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:40:04,575 INFO L225 Difference]: With dead ends: 1151 [2023-04-03 06:40:04,575 INFO L226 Difference]: Without dead ends: 582 [2023-04-03 06:40:04,576 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 [2023-04-03 06:40:04,577 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2675 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:40:04,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2675 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 06:40:04,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-04-03 06:40:04,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 582. [2023-04-03 06:40:04,592 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) [2023-04-03 06:40:04,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 735 transitions. [2023-04-03 06:40:04,610 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 735 transitions. Word has length 296 [2023-04-03 06:40:04,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:40:04,611 INFO L495 AbstractCegarLoop]: Abstraction has 582 states and 735 transitions. [2023-04-03 06:40:04,611 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) [2023-04-03 06:40:04,611 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 735 transitions. [2023-04-03 06:40:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-03 06:40:04,614 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:40:04,614 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] [2023-04-03 06:40:04,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:40:04,814 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 [2023-04-03 06:40:04,815 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:40:04,816 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:40:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash 890121132, now seen corresponding path program 1 times [2023-04-03 06:40:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:40:04,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757039703] [2023-04-03 06:40:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:40:04,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:40:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:40:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-04-03 06:40:05,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:40:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757039703] [2023-04-03 06:40:05,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757039703] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:40:05,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447912402] [2023-04-03 06:40:05,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:40:05,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:40:05,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:40:05,127 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) [2023-04-03 06:40:05,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:40:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:40:05,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 2889 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 06:40:05,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:40:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-04-03 06:40:05,814 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:40:06,078 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-04-03 06:40:06,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447912402] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 06:40:06,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [551957634] [2023-04-03 06:40:06,105 INFO L159 IcfgInterpreter]: Started Sifa with 203 locations of interest [2023-04-03 06:40:06,105 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:40:06,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:40:06,112 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:40:06,112 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:40:10,210 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 142 for LOIs [2023-04-03 06:40:11,790 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 148 for LOIs [2023-04-03 06:40:49,055 WARN L223 SmtUtils]: Spent 33.74s on a formula simplification. DAG size of input: 8952 DAG size of output: 355 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 06:41:24,098 WARN L223 SmtUtils]: Spent 32.22s on a formula simplification. DAG size of input: 8801 DAG size of output: 363 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 06:42:00,226 WARN L223 SmtUtils]: Spent 32.89s on a formula simplification. DAG size of input: 8840 DAG size of output: 400 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 06:42:35,165 WARN L223 SmtUtils]: Spent 34.73s on a formula simplification. DAG size of input: 9254 DAG size of output: 456 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 06:43:09,834 WARN L223 SmtUtils]: Spent 34.59s on a formula simplification. DAG size of input: 9254 DAG size of output: 456 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-04-03 06:43:45,323 WARN L223 SmtUtils]: Spent 34.65s on a formula simplification. DAG size of input: 9254 DAG size of output: 456 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)