/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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 05:56:43,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 05:56:43,999 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 05:56:44,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 05:56:44,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 05:56:44,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 05:56:44,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 05:56:44,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 05:56:44,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 05:56:44,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 05:56:44,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 05:56:44,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 05:56:44,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 05:56:44,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 05:56:44,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 05:56:44,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 05:56:44,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 05:56:44,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 05:56:44,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 05:56:44,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 05:56:44,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 05:56:44,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 05:56:44,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 05:56:44,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 05:56:44,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 05:56:44,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 05:56:44,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 05:56:44,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 05:56:44,050 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 05:56:44,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 05:56:44,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 05:56:44,052 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 05:56:44,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 05:56:44,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 05:56:44,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 05:56:44,054 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 05:56:44,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 05:56:44,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 05:56:44,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 05:56:44,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 05:56:44,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 05:56:44,057 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 05:56:44,075 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 05:56:44,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 05:56:44,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 05:56:44,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 05:56:44,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 05:56:44,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 05:56:44,077 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 05:56:44,077 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 05:56:44,077 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 05:56:44,078 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 05:56:44,079 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 05:56:44,079 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 05:56:44,079 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 05:56:44,079 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 05:56:44,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 05:56:44,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 05:56:44,081 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 05:56:44,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 05:56:44,081 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 05:56:44,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 05:56:44,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 05:56:44,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 05:56:44,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:56:44,082 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 05:56:44,082 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 05:56:44,082 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 05:56:44,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 05:56:44,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 05:56:44,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 05:56:44,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 05:56:44,282 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 05:56:44,282 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 05:56:44,283 INFO L432 ainManager$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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2023-04-03 05:56:45,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 05:56:45,876 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 05:56:45,877 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2023-04-03 05:56:45,915 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b94d206/a1bda84b44ce486cbb5d60bb33aa8532/FLAGe5e82de35 [2023-04-03 05:56:45,931 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1b94d206/a1bda84b44ce486cbb5d60bb33aa8532 [2023-04-03 05:56:45,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 05:56:45,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 05:56:45,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 05:56:45,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 05:56:45,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 05:56:45,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:56:45" (1/1) ... [2023-04-03 05:56:45,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa282a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:45, skipping insertion in model container [2023-04-03 05:56:45,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:56:45" (1/1) ... [2023-04-03 05:56:45,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 05:56:46,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 05:56:47,155 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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2023-04-03 05:56:47,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:56:47,309 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 05:56:47,549 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-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i[136556,136569] [2023-04-03 05:56:47,567 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:56:47,626 INFO L208 MainTranslator]: Completed translation [2023-04-03 05:56:47,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47 WrapperNode [2023-04-03 05:56:47,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 05:56:47,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 05:56:47,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 05:56:47,630 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 05:56:47,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 05:56:47,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 05:56:47,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 05:56:47,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 05:56:47,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (1/1) ... [2023-04-03 05:56:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:56:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:56:47,928 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 05:56:47,953 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 05:56:47,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 05:56:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 05:56:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 05:56:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-03 05:56:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 05:56:47,973 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 05:56:47,974 INFO L138 BoogieDeclarations]: Found implementation of procedure static_init [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_make_resource [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure static_find_io [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pccard_resource_ops_7 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pccard_resource_ops_6 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_6 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_7 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-03 05:56:47,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure claim_region [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure free_region [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure add_interval [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sub_interval [2023-04-03 05:56:47,976 INFO L138 BoogieDeclarations]: Found implementation of procedure readable [2023-04-03 05:56:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure checksum [2023-04-03 05:56:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure do_validate_mem [2023-04-03 05:56:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure do_mem_probe [2023-04-03 05:56:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_mem [2023-04-03 05:56:47,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_nonstatic_validate_mem [2023-04-03 05:56:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_common_align [2023-04-03 05:56:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_align [2023-04-03 05:56:47,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_adjust_io_region [2023-04-03 05:56:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __nonstatic_find_io_region [2023-04-03 05:56:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_io [2023-04-03 05:56:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_find_mem_region [2023-04-03 05:56:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_memory [2023-04-03 05:56:47,982 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_io [2023-04-03 05:56:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_autoadd_resources [2023-04-03 05:56:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_init [2023-04-03 05:56:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_release_resource_db [2023-04-03 05:56:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure show_io_db [2023-04-03 05:56:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure store_io_db [2023-04-03 05:56:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mem_db [2023-04-03 05:56:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure store_mem_db [2023-04-03 05:56:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_add_rsrc [2023-04-03 05:56:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure pccard_sysfs_remove_rsrc [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_sysfs_init [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure nonstatic_sysfs_exit [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pccard_resource_ops_4 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_device_attribute_2 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pccard_resource_ops_5 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_device_attribute_3 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_class_interface_1 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_19 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_20 [2023-04-03 05:56:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_21 [2023-04-03 05:56:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_22 [2023-04-03 05:56:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2023-04-03 05:56:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2023-04-03 05:56:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_25 [2023-04-03 05:56:47,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2023-04-03 05:56:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_27 [2023-04-03 05:56:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_28 [2023-04-03 05:56:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2023-04-03 05:56:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2023-04-03 05:56:47,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_31 [2023-04-03 05:56:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_32 [2023-04-03 05:56:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_33 [2023-04-03 05:56:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 05:56:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 05:56:47,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 05:56:47,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 05:56:47,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure adjust_resource [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_resource [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure class_interface_register [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure class_interface_unregister [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2023-04-03 05:56:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_6 [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_7 [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_6 [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_7 [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_bus_alloc_resource [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_parent_resource [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure request_resource [2023-04-03 05:56:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-04-03 05:56:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-04-03 05:56:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 05:56:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 05:56:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 05:56:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 05:56:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 05:56:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pccard_resource_ops_7 [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pccard_resource_ops_6 [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure static_init [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_make_resource [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure static_find_io [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_6 [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_6 [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_7 [2023-04-03 05:56:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_7 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_6 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_7 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_22 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_20 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2023-04-03 05:56:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_27 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_31 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_33 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_19 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_21 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_25 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_28 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_32 [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure request_resource [2023-04-03 05:56:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_resource [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_resource [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pccard_resource_ops_4 [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_device_attribute_2 [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pccard_resource_ops_5 [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_device_attribute_3 [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_class_interface_1 [2023-04-03 05:56:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure class_interface_register [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure class_interface_unregister [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_parent_resource [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_bus_alloc_resource [2023-04-03 05:56:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure claim_region [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure free_region [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure add_interval [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure sub_interval [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure readable [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure checksum [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure do_validate_mem [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure do_mem_probe [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure validate_mem [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_nonstatic_validate_mem [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_common_align [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_align [2023-04-03 05:56:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_adjust_io_region [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure __nonstatic_find_io_region [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_io [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_find_mem_region [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_memory [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure adjust_io [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_autoadd_resources [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_init [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_release_resource_db [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure show_io_db [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure store_io_db [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure show_mem_db [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure store_mem_db [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_add_rsrc [2023-04-03 05:56:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure pccard_sysfs_remove_rsrc [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_sysfs_init [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure nonstatic_sysfs_exit [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 05:56:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 05:56:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 05:56:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_ops_mutex_of_pcmcia_socket [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 05:56:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 05:56:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 05:56:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 05:56:48,503 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 05:56:48,507 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 05:56:48,596 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 05:56:50,354 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 05:56:50,995 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 05:56:50,995 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 05:56:51,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:56:51 BoogieIcfgContainer [2023-04-03 05:56:51,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 05:56:51,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 05:56:51,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 05:56:51,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 05:56:51,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 05:56:45" (1/3) ... [2023-04-03 05:56:51,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522cae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:56:51, skipping insertion in model container [2023-04-03 05:56:51,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:56:47" (2/3) ... [2023-04-03 05:56:51,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522cae44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:56:51, skipping insertion in model container [2023-04-03 05:56:51,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:56:51" (3/3) ... [2023-04-03 05:56:51,008 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--pcmcia--pcmcia_rsrc.ko-entry_point.cil.out.i [2023-04-03 05:56:51,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 05:56:51,026 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 05:56:51,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 05:56:51,109 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;@5de97f54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 05:56:51,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 05:56:51,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 1022 states, 615 states have (on average 1.3252032520325203) internal successors, (815), 640 states have internal predecessors, (815), 265 states have call successors, (265), 101 states have call predecessors, (265), 100 states have return successors, (255), 253 states have call predecessors, (255), 255 states have call successors, (255) [2023-04-03 05:56:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-04-03 05:56:51,135 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:51,136 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:51,137 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:51,141 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:51,141 INFO L85 PathProgramCache]: Analyzing trace with hash 719702630, now seen corresponding path program 1 times [2023-04-03 05:56:51,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:51,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595991256] [2023-04-03 05:56:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:51,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:52,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:52,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:52,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595991256] [2023-04-03 05:56:52,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595991256] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:52,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:52,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:52,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116748270] [2023-04-03 05:56:52,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:52,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:52,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:52,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:52,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:52,140 INFO L87 Difference]: Start difference. First operand has 1022 states, 615 states have (on average 1.3252032520325203) internal successors, (815), 640 states have internal predecessors, (815), 265 states have call successors, (265), 101 states have call predecessors, (265), 100 states have return successors, (255), 253 states have call predecessors, (255), 255 states have call successors, (255) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 05:56:52,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:52,880 INFO L93 Difference]: Finished difference Result 2459 states and 3432 transitions. [2023-04-03 05:56:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:52,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 268 [2023-04-03 05:56:52,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:52,916 INFO L225 Difference]: With dead ends: 2459 [2023-04-03 05:56:52,916 INFO L226 Difference]: Without dead ends: 1605 [2023-04-03 05:56:52,936 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 05:56:52,944 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 1100 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1100 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:52,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1100 Valid, 2082 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 05:56:52,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1605 states. [2023-04-03 05:56:53,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1605 to 1586. [2023-04-03 05:56:53,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1015 states have (on average 1.3497536945812807) internal successors, (1370), 1033 states have internal predecessors, (1370), 395 states have call successors, (395), 178 states have call predecessors, (395), 175 states have return successors, (388), 384 states have call predecessors, (388), 388 states have call successors, (388) [2023-04-03 05:56:53,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2153 transitions. [2023-04-03 05:56:53,125 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2153 transitions. Word has length 268 [2023-04-03 05:56:53,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:53,131 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 2153 transitions. [2023-04-03 05:56:53,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 05:56:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2153 transitions. [2023-04-03 05:56:53,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-04-03 05:56:53,143 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:53,144 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:53,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 05:56:53,144 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:53,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:53,145 INFO L85 PathProgramCache]: Analyzing trace with hash -200501677, now seen corresponding path program 1 times [2023-04-03 05:56:53,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:53,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562168473] [2023-04-03 05:56:53,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:53,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:53,548 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:53,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:53,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562168473] [2023-04-03 05:56:53,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562168473] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:53,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:53,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:53,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030371630] [2023-04-03 05:56:53,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:53,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:53,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:53,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:53,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:53,552 INFO L87 Difference]: Start difference. First operand 1586 states and 2153 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 05:56:54,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:54,009 INFO L93 Difference]: Finished difference Result 4520 states and 6131 transitions. [2023-04-03 05:56:54,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:54,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 270 [2023-04-03 05:56:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:54,029 INFO L225 Difference]: With dead ends: 4520 [2023-04-03 05:56:54,029 INFO L226 Difference]: Without dead ends: 2990 [2023-04-03 05:56:54,036 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 05:56:54,040 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 1058 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:54,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 2086 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:56:54,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2023-04-03 05:56:54,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2970. [2023-04-03 05:56:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 1922 states have (on average 1.3590010405827264) internal successors, (2612), 1954 states have internal predecessors, (2612), 715 states have call successors, (715), 335 states have call predecessors, (715), 332 states have return successors, (708), 700 states have call predecessors, (708), 708 states have call successors, (708) [2023-04-03 05:56:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4035 transitions. [2023-04-03 05:56:54,182 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4035 transitions. Word has length 270 [2023-04-03 05:56:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:54,182 INFO L495 AbstractCegarLoop]: Abstraction has 2970 states and 4035 transitions. [2023-04-03 05:56:54,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-03 05:56:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4035 transitions. [2023-04-03 05:56:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-04-03 05:56:54,186 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:54,186 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:54,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 05:56:54,187 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:54,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:54,187 INFO L85 PathProgramCache]: Analyzing trace with hash 915660866, now seen corresponding path program 1 times [2023-04-03 05:56:54,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:54,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101001402] [2023-04-03 05:56:54,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:54,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:54,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:54,613 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:54,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101001402] [2023-04-03 05:56:54,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101001402] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:54,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:54,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:54,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663013686] [2023-04-03 05:56:54,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:54,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:54,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:54,616 INFO L87 Difference]: Start difference. First operand 2970 states and 4035 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:55,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:55,171 INFO L93 Difference]: Finished difference Result 8668 states and 11789 transitions. [2023-04-03 05:56:55,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:55,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 270 [2023-04-03 05:56:55,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:55,201 INFO L225 Difference]: With dead ends: 8668 [2023-04-03 05:56:55,201 INFO L226 Difference]: Without dead ends: 5754 [2023-04-03 05:56:55,211 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 05:56:55,213 INFO L413 NwaCegarLoop]: 1174 mSDtfsCounter, 1001 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:55,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 2217 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:56:55,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2023-04-03 05:56:55,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5750. [2023-04-03 05:56:55,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5750 states, 3750 states have (on average 1.3621333333333334) internal successors, (5108), 3806 states have internal predecessors, (5108), 1359 states have call successors, (1359), 643 states have call predecessors, (1359), 640 states have return successors, (1352), 1340 states have call predecessors, (1352), 1352 states have call successors, (1352) [2023-04-03 05:56:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 7819 transitions. [2023-04-03 05:56:55,530 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 7819 transitions. Word has length 270 [2023-04-03 05:56:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:55,531 INFO L495 AbstractCegarLoop]: Abstraction has 5750 states and 7819 transitions. [2023-04-03 05:56:55,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 7819 transitions. [2023-04-03 05:56:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2023-04-03 05:56:55,535 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:55,535 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:55,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 05:56:55,535 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:55,535 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -635829218, now seen corresponding path program 1 times [2023-04-03 05:56:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:55,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851134438] [2023-04-03 05:56:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:55,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:55,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:55,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:55,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851134438] [2023-04-03 05:56:55,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851134438] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:55,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:55,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:55,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952428908] [2023-04-03 05:56:55,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:55,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:55,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:55,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:55,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:55,812 INFO L87 Difference]: Start difference. First operand 5750 states and 7819 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:56,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:56,160 INFO L93 Difference]: Finished difference Result 5752 states and 7820 transitions. [2023-04-03 05:56:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:56,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 273 [2023-04-03 05:56:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:56,199 INFO L225 Difference]: With dead ends: 5752 [2023-04-03 05:56:56,199 INFO L226 Difference]: Without dead ends: 5749 [2023-04-03 05:56:56,203 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 05:56:56,205 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 1097 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:56,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 1059 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 05:56:56,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5749 states. [2023-04-03 05:56:56,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5749 to 5749. [2023-04-03 05:56:56,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5749 states, 3750 states have (on average 1.3618666666666666) internal successors, (5107), 3805 states have internal predecessors, (5107), 1358 states have call successors, (1358), 643 states have call predecessors, (1358), 640 states have return successors, (1352), 1340 states have call predecessors, (1352), 1352 states have call successors, (1352) [2023-04-03 05:56:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5749 states to 5749 states and 7817 transitions. [2023-04-03 05:56:56,592 INFO L78 Accepts]: Start accepts. Automaton has 5749 states and 7817 transitions. Word has length 273 [2023-04-03 05:56:56,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:56,593 INFO L495 AbstractCegarLoop]: Abstraction has 5749 states and 7817 transitions. [2023-04-03 05:56:56,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:56,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5749 states and 7817 transitions. [2023-04-03 05:56:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-04-03 05:56:56,598 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:56,599 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:56,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 05:56:56,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:56,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1763590005, now seen corresponding path program 1 times [2023-04-03 05:56:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:56,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612164844] [2023-04-03 05:56:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:56,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:56,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:56,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:56,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612164844] [2023-04-03 05:56:56,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612164844] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:56,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:56,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:56,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984254786] [2023-04-03 05:56:56,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:56,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:56,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:56,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:56,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:56,899 INFO L87 Difference]: Start difference. First operand 5749 states and 7817 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:57,329 INFO L93 Difference]: Finished difference Result 5751 states and 7818 transitions. [2023-04-03 05:56:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:57,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 274 [2023-04-03 05:56:57,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:57,361 INFO L225 Difference]: With dead ends: 5751 [2023-04-03 05:56:57,361 INFO L226 Difference]: Without dead ends: 5748 [2023-04-03 05:56:57,366 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 05:56:57,367 INFO L413 NwaCegarLoop]: 1056 mSDtfsCounter, 1094 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:57,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 1057 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 05:56:57,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2023-04-03 05:56:57,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 5748. [2023-04-03 05:56:57,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 3750 states have (on average 1.3616) internal successors, (5106), 3804 states have internal predecessors, (5106), 1357 states have call successors, (1357), 643 states have call predecessors, (1357), 640 states have return successors, (1352), 1340 states have call predecessors, (1352), 1352 states have call successors, (1352) [2023-04-03 05:56:57,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 7815 transitions. [2023-04-03 05:56:57,694 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 7815 transitions. Word has length 274 [2023-04-03 05:56:57,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:57,696 INFO L495 AbstractCegarLoop]: Abstraction has 5748 states and 7815 transitions. [2023-04-03 05:56:57,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 7815 transitions. [2023-04-03 05:56:57,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2023-04-03 05:56:57,700 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:57,700 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:57,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 05:56:57,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:57,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:57,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1163820543, now seen corresponding path program 1 times [2023-04-03 05:56:57,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:57,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608177113] [2023-04-03 05:56:57,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:57,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:58,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2023-04-03 05:56:58,175 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:58,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608177113] [2023-04-03 05:56:58,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608177113] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:58,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:58,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:58,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776527691] [2023-04-03 05:56:58,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:58,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:58,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:58,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:58,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:58,178 INFO L87 Difference]: Start difference. First operand 5748 states and 7815 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:58,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:56:58,761 INFO L93 Difference]: Finished difference Result 12550 states and 17147 transitions. [2023-04-03 05:56:58,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:56:58,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 275 [2023-04-03 05:56:58,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:56:58,808 INFO L225 Difference]: With dead ends: 12550 [2023-04-03 05:56:58,808 INFO L226 Difference]: Without dead ends: 6847 [2023-04-03 05:56:58,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 05:56:58,835 INFO L413 NwaCegarLoop]: 1062 mSDtfsCounter, 1025 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-03 05:56:58,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 1429 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-03 05:56:58,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2023-04-03 05:56:59,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 6797. [2023-04-03 05:56:59,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6797 states, 4425 states have (on average 1.3489265536723163) internal successors, (5969), 4494 states have internal predecessors, (5969), 1593 states have call successors, (1593), 803 states have call predecessors, (1593), 778 states have return successors, (1610), 1551 states have call predecessors, (1610), 1586 states have call successors, (1610) [2023-04-03 05:56:59,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6797 states to 6797 states and 9172 transitions. [2023-04-03 05:56:59,249 INFO L78 Accepts]: Start accepts. Automaton has 6797 states and 9172 transitions. Word has length 275 [2023-04-03 05:56:59,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:56:59,250 INFO L495 AbstractCegarLoop]: Abstraction has 6797 states and 9172 transitions. [2023-04-03 05:56:59,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (34), 3 states have call predecessors, (34), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 05:56:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 6797 states and 9172 transitions. [2023-04-03 05:56:59,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2023-04-03 05:56:59,256 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:56:59,256 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:56:59,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 05:56:59,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:56:59,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:56:59,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1481734403, now seen corresponding path program 1 times [2023-04-03 05:56:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:56:59,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377891470] [2023-04-03 05:56:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:56:59,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:56:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:56:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2023-04-03 05:56:59,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:56:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377891470] [2023-04-03 05:56:59,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377891470] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:56:59,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:56:59,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:56:59,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876630835] [2023-04-03 05:56:59,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:56:59,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:56:59,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:56:59,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:56:59,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:56:59,649 INFO L87 Difference]: Start difference. First operand 6797 states and 9172 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:57:00,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:57:00,681 INFO L93 Difference]: Finished difference Result 20092 states and 27047 transitions. [2023-04-03 05:57:00,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:57:00,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 364 [2023-04-03 05:57:00,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:57:00,767 INFO L225 Difference]: With dead ends: 20092 [2023-04-03 05:57:00,767 INFO L226 Difference]: Without dead ends: 13351 [2023-04-03 05:57:00,802 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 05:57:00,803 INFO L413 NwaCegarLoop]: 1174 mSDtfsCounter, 1089 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:57:00,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 2122 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:57:00,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13351 states. [2023-04-03 05:57:01,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13351 to 13337. [2023-04-03 05:57:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13337 states, 8675 states have (on average 1.345821325648415) internal successors, (11675), 8812 states have internal predecessors, (11675), 3109 states have call successors, (3109), 1597 states have call predecessors, (3109), 1552 states have return successors, (3150), 3031 states have call predecessors, (3150), 3102 states have call successors, (3150) [2023-04-03 05:57:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13337 states to 13337 states and 17934 transitions. [2023-04-03 05:57:01,697 INFO L78 Accepts]: Start accepts. Automaton has 13337 states and 17934 transitions. Word has length 364 [2023-04-03 05:57:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:57:01,698 INFO L495 AbstractCegarLoop]: Abstraction has 13337 states and 17934 transitions. [2023-04-03 05:57:01,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:57:01,699 INFO L276 IsEmpty]: Start isEmpty. Operand 13337 states and 17934 transitions. [2023-04-03 05:57:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2023-04-03 05:57:01,705 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:57:01,705 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:01,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 05:57:01,706 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:57:01,706 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:57:01,706 INFO L85 PathProgramCache]: Analyzing trace with hash 38014526, now seen corresponding path program 1 times [2023-04-03 05:57:01,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:57:01,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434067515] [2023-04-03 05:57:01,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:57:01,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:57:01,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:57:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1154 trivial. 0 not checked. [2023-04-03 05:57:02,088 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:57:02,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434067515] [2023-04-03 05:57:02,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434067515] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:57:02,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:57:02,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:57:02,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667578242] [2023-04-03 05:57:02,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:57:02,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:57:02,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:57:02,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:57:02,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:57:02,091 INFO L87 Difference]: Start difference. First operand 13337 states and 17934 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:57:03,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:57:03,812 INFO L93 Difference]: Finished difference Result 37103 states and 49788 transitions. [2023-04-03 05:57:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:57:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 367 [2023-04-03 05:57:03,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:57:03,961 INFO L225 Difference]: With dead ends: 37103 [2023-04-03 05:57:03,961 INFO L226 Difference]: Without dead ends: 23822 [2023-04-03 05:57:04,026 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 05:57:04,028 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 1043 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 05:57:04,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 2651 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 05:57:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23822 states. [2023-04-03 05:57:05,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23822 to 23809. [2023-04-03 05:57:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23809 states, 15463 states have (on average 1.3417189419905582) internal successors, (20747), 15720 states have internal predecessors, (20747), 5535 states have call successors, (5535), 2887 states have call predecessors, (5535), 2810 states have return successors, (5624), 5397 states have call predecessors, (5624), 5528 states have call successors, (5624) [2023-04-03 05:57:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23809 states to 23809 states and 31906 transitions. [2023-04-03 05:57:05,547 INFO L78 Accepts]: Start accepts. Automaton has 23809 states and 31906 transitions. Word has length 367 [2023-04-03 05:57:05,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:57:05,548 INFO L495 AbstractCegarLoop]: Abstraction has 23809 states and 31906 transitions. [2023-04-03 05:57:05,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 05:57:05,548 INFO L276 IsEmpty]: Start isEmpty. Operand 23809 states and 31906 transitions. [2023-04-03 05:57:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-04-03 05:57:05,559 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:57:05,560 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:57:05,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 05:57:05,560 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:57:05,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:57:05,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1907098908, now seen corresponding path program 1 times [2023-04-03 05:57:05,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:57:05,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181185674] [2023-04-03 05:57:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:57:05,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:57:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:57:06,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2373 trivial. 0 not checked. [2023-04-03 05:57:06,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:57:06,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181185674] [2023-04-03 05:57:06,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181185674] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:57:06,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:57:06,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:57:06,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429519308] [2023-04-03 05:57:06,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:57:06,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:57:06,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:57:06,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:57:06,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:57:06,411 INFO L87 Difference]: Start difference. First operand 23809 states and 31906 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-04-03 05:57:07,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:57:07,921 INFO L93 Difference]: Finished difference Result 27435 states and 36432 transitions. [2023-04-03 05:57:07,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:57:07,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 451 [2023-04-03 05:57:07,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:57:08,029 INFO L225 Difference]: With dead ends: 27435 [2023-04-03 05:57:08,030 INFO L226 Difference]: Without dead ends: 22959 [2023-04-03 05:57:08,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 05:57:08,063 INFO L413 NwaCegarLoop]: 1320 mSDtfsCounter, 398 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:57:08,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2287 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:57:08,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22959 states. [2023-04-03 05:57:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22959 to 22807. [2023-04-03 05:57:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22807 states, 14839 states have (on average 1.3426106880517554) internal successors, (19923), 15095 states have internal predecessors, (19923), 5267 states have call successors, (5267), 2739 states have call predecessors, (5267), 2700 states have return successors, (5226), 5156 states have call predecessors, (5226), 5226 states have call successors, (5226) [2023-04-03 05:57:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22807 states to 22807 states and 30416 transitions. [2023-04-03 05:57:09,384 INFO L78 Accepts]: Start accepts. Automaton has 22807 states and 30416 transitions. Word has length 451 [2023-04-03 05:57:09,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:57:09,385 INFO L495 AbstractCegarLoop]: Abstraction has 22807 states and 30416 transitions. [2023-04-03 05:57:09,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (57), 3 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-04-03 05:57:09,385 INFO L276 IsEmpty]: Start isEmpty. Operand 22807 states and 30416 transitions. [2023-04-03 05:57:09,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2023-04-03 05:57:09,451 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:57:09,451 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:57:09,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 05:57:09,452 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:57:09,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:57:09,452 INFO L85 PathProgramCache]: Analyzing trace with hash 370424023, now seen corresponding path program 1 times [2023-04-03 05:57:09,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:57:09,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606339475] [2023-04-03 05:57:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:57:09,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:57:09,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:57:13,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2411 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2023-04-03 05:57:13,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:57:13,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606339475] [2023-04-03 05:57:13,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606339475] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:57:13,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700119873] [2023-04-03 05:57:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:57:13,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:57:13,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:57:13,471 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 05:57:13,474 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 05:57:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:57:14,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 4767 conjuncts, 49 conjunts are in the unsatisfiable core [2023-04-03 05:57:14,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:57:15,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 05:57:15,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2023-04-03 05:57:15,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-04-03 05:57:15,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2023-04-03 05:57:16,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-04-03 05:57:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-04-03 05:57:16,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 15 [2023-04-03 05:57:16,268 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-04-03 05:57:16,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-04-03 05:57:16,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 75 [2023-04-03 05:57:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 2411 backedges. 280 proven. 9 refuted. 0 times theorem prover too weak. 2122 trivial. 0 not checked. [2023-04-03 05:57:16,470 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:57:19,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700119873] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:57:19,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [230190612] [2023-04-03 05:57:19,346 INFO L159 IcfgInterpreter]: Started Sifa with 222 locations of interest [2023-04-03 05:57:19,346 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 05:57:19,350 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 05:57:19,354 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 05:57:19,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 05:57:22,694 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 178 for LOIs [2023-04-03 05:57:23,636 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 205 for LOIs [2023-04-03 05:57:25,201 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2023-04-03 05:57:31,424 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 65536 conjuctions. This might take some time...