/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:28:51,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:28:51,274 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:28:51,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:28:51,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:28:51,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:28:51,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:28:51,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:28:51,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:28:51,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:28:51,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:28:51,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:28:51,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:28:51,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:28:51,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:28:51,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:28:51,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:28:51,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:28:51,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:28:51,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:28:51,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:28:51,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:28:51,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:28:51,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:28:51,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:28:51,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:28:51,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:28:51,323 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:28:51,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:28:51,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:28:51,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:28:51,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:28:51,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:28:51,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:28:51,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:28:51,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:28:51,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:28:51,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:28:51,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:28:51,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:28:51,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:28:51,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:28:51,341 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:28:51,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:28:51,341 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:28:51,341 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:28:51,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:28:51,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:28:51,342 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:28:51,342 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:28:51,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:28:51,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:28:51,344 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:28:51,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:28:51,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:28:51,345 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:28:51,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:28:51,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:28:51,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:28:51,485 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:28:51,485 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:28:51,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-04-03 06:28:52,459 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:28:52,868 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:28:52,868 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-04-03 06:28:52,909 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88f0cfa1/fecbe6bda08f4adab0cfeb370e71d34d/FLAGc1e8c108f [2023-04-03 06:28:52,922 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b88f0cfa1/fecbe6bda08f4adab0cfeb370e71d34d [2023-04-03 06:28:52,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:28:52,925 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:28:52,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:28:52,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:28:52,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:28:52,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:28:52" (1/1) ... [2023-04-03 06:28:52,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9d740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:52, skipping insertion in model container [2023-04-03 06:28:52,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:28:52" (1/1) ... [2023-04-03 06:28:52,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:28:53,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:28:54,741 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2023-04-03 06:28:54,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:28:54,840 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:28:55,085 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2023-04-03 06:28:55,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:28:55,170 WARN L667 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:28:55,170 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:28:55,170 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:28:55,175 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:28:55,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55 WrapperNode [2023-04-03 06:28:55,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:28:55,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:28:55,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:28:55,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:28:55,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,429 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:28:55,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:28:55,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:28:55,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:28:55,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (1/1) ... [2023-04-03 06:28:55,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:28:55,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:28:55,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 06:28:55,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:28:55,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16p [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 06:28:55,526 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-04-03 06:28:55,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_add [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure __preempt_count_sub [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_6 [2023-04-03 06:28:55,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_10 [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_acquire [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_lock_release [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-04-03 06:28:55,529 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_is_last [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_next [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unclone [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_header_cloned [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2023-04-03 06:28:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_head_init [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_before [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-04-03 06:28:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2023-04-03 06:28:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2023-04-03 06:28:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_pull [2023-04-03 06:28:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2023-04-03 06:28:55,532 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_cow [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cow_head [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_complete_unset [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure write_pnet [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_net_set [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_keep_dst [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2023-04-03 06:28:55,533 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ethertype_to_npindex [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_read [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unattached_ioctl [2023-04-03 06:28:55,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init_net [2023-04-03 06:28:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2023-04-03 06:28:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_init [2023-04-03 06:28:55,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_start_xmit [2023-04-03 06:28:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2023-04-03 06:28:55,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2023-04-03 06:28:55,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_init [2023-04-03 06:28:55,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_setup [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure pad_compress_skb [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_input_error [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_frame [2023-04-03 06:28:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_decompress_frame [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_mp_frame [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_insert [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_reconstruct [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_channel [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_index [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unit_number [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_dev_name [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_set_compress [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_compressor [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_compressor [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_create_interface [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2023-04-03 06:28:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_channel [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_connect_channel [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_cleanup [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_set [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_get [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_pernet_operations_2 [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_1 [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 06:28:55,545 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_38 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_40 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_41 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_42 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_43 [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:28:55,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __rwlock_init [2023-04-03 06:28:55,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-04-03 06:28:55,548 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2023-04-03 06:28:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-04-03 06:28:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2023-04-03 06:28:55,549 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_destroy [2023-04-03 06:28:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_find_slowpath [2023-04-03 06:28:55,551 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_init [2023-04-03 06:28:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-04-03 06:28:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_iter_init [2023-04-03 06:28:55,552 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_open_1 [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_stop_1 [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_1 [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_printk [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2023-04-03 06:28:55,553 INFO L138 BoogieDeclarations]: Found implementation of procedure register_pernet_device [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_bits [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_iter [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull_rcsum [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_compress [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_init [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_remember [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_toss [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_uncompress [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2023-04-03 06:28:55,554 INFO L138 BoogieDeclarations]: Found implementation of procedure default_wake_function [2023-04-03 06:28:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:28:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:28:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:28:55,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16p [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:28:55,555 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:28:55,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_move [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_add [2023-04-03 06:28:55,557 INFO L130 BoogieDeclarations]: Found specification of procedure __preempt_count_sub [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure __rwlock_init [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_6 [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_10 [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure default_wake_function [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:28:55,558 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_acquire [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_lock_release [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find_slowpath [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-04-03 06:28:55,559 INFO L130 BoogieDeclarations]: Found specification of procedure idr_destroy [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure idr_init [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure idr_find [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_pernet_operations_2 [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_1 [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure iov_iter_init [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2023-04-03 06:28:55,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_38 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_is_last [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_next [2023-04-03 06:28:55,561 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unclone [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_header_cloned [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_head_init [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_before [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_pull [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-03 06:28:55,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_cow [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cow_head [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull_rcsum [2023-04-03 06:28:55,563 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_iter [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_bits [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_complete_unset [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure write_pnet [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure register_pernet_device [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure dev_net_set [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_41 [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_43 [2023-04-03 06:28:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_40 [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_42 [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netif_keep_dst [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_printk [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_input_error [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_channel [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_index [2023-04-03 06:28:55,566 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unit_number [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_name [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_compressor [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_compressor [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_init [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_compress [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_uncompress [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_remember [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_toss [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unattached_ioctl [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_frame [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2023-04-03 06:28:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_decompress_frame [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_mp_frame [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_insert [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_reconstruct [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_set_compress [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_create_interface [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_channel [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_connect_channel [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2023-04-03 06:28:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure unit_get [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure unit_set [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ethertype_to_npindex [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_read [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init_net [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_init [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_start_xmit [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_dev_init [2023-04-03 06:28:55,569 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_setup [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure pad_compress_skb [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~TO~int [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~int [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_cleanup [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_open_1 [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_1 [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_stop_1 [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:28:55,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:28:55,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:28:56,314 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:28:56,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:28:56,462 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:28:59,807 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:29:01,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:29:01,465 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 06:29:01,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:29:01 BoogieIcfgContainer [2023-04-03 06:29:01,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:29:01,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:29:01,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:29:01,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:29:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:28:52" (1/3) ... [2023-04-03 06:29:01,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c7f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:29:01, skipping insertion in model container [2023-04-03 06:29:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:28:55" (2/3) ... [2023-04-03 06:29:01,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@537c7f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:29:01, skipping insertion in model container [2023-04-03 06:29:01,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:29:01" (3/3) ... [2023-04-03 06:29:01,475 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2023-04-03 06:29:01,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:29:01,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:29:01,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:29:01,549 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;@5d4a7640, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:29:01,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:29:01,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 2337 states, 1320 states have (on average 1.2886363636363636) internal successors, (1701), 1400 states have internal predecessors, (1701), 719 states have call successors, (719), 282 states have call predecessors, (719), 281 states have return successors, (714), 688 states have call predecessors, (714), 714 states have call successors, (714) [2023-04-03 06:29:01,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-03 06:29:01,570 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:01,570 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:29:01,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:01,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:01,574 INFO L85 PathProgramCache]: Analyzing trace with hash -160879317, now seen corresponding path program 1 times [2023-04-03 06:29:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:01,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326075770] [2023-04-03 06:29:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:01,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:01,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-04-03 06:29:02,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:02,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326075770] [2023-04-03 06:29:02,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326075770] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:02,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:02,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:29:02,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530816351] [2023-04-03 06:29:02,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:02,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:29:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:02,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:29:02,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:02,301 INFO L87 Difference]: Start difference. First operand has 2337 states, 1320 states have (on average 1.2886363636363636) internal successors, (1701), 1400 states have internal predecessors, (1701), 719 states have call successors, (719), 282 states have call predecessors, (719), 281 states have return successors, (714), 688 states have call predecessors, (714), 714 states have call successors, (714) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-04-03 06:29:04,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:06,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:08,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:09,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:09,421 INFO L93 Difference]: Finished difference Result 6043 states and 8234 transitions. [2023-04-03 06:29:09,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:29:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 184 [2023-04-03 06:29:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:09,459 INFO L225 Difference]: With dead ends: 6043 [2023-04-03 06:29:09,459 INFO L226 Difference]: Without dead ends: 3740 [2023-04-03 06:29:09,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:09,478 INFO L413 NwaCegarLoop]: 3119 mSDtfsCounter, 2096 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 5765 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:09,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2096 Valid, 5765 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 707 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2023-04-03 06:29:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3740 states. [2023-04-03 06:29:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3740 to 3727. [2023-04-03 06:29:09,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3727 states, 2122 states have (on average 1.2851083883129124) internal successors, (2727), 2249 states have internal predecessors, (2727), 1122 states have call successors, (1122), 484 states have call predecessors, (1122), 482 states have return successors, (1122), 1071 states have call predecessors, (1122), 1120 states have call successors, (1122) [2023-04-03 06:29:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3727 states to 3727 states and 4971 transitions. [2023-04-03 06:29:09,696 INFO L78 Accepts]: Start accepts. Automaton has 3727 states and 4971 transitions. Word has length 184 [2023-04-03 06:29:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:09,697 INFO L495 AbstractCegarLoop]: Abstraction has 3727 states and 4971 transitions. [2023-04-03 06:29:09,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-04-03 06:29:09,697 INFO L276 IsEmpty]: Start isEmpty. Operand 3727 states and 4971 transitions. [2023-04-03 06:29:09,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-04-03 06:29:09,708 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:09,708 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:29:09,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:29:09,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:09,709 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:09,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1282068897, now seen corresponding path program 1 times [2023-04-03 06:29:09,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:09,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656586136] [2023-04-03 06:29:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:09,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2023-04-03 06:29:09,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:09,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656586136] [2023-04-03 06:29:09,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656586136] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:09,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:09,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:29:09,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257489981] [2023-04-03 06:29:09,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:09,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:29:09,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:09,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:29:09,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:09,998 INFO L87 Difference]: Start difference. First operand 3727 states and 4971 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-03 06:29:12,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:14,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:15,630 INFO L93 Difference]: Finished difference Result 10797 states and 14485 transitions. [2023-04-03 06:29:15,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:29:15,631 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), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 212 [2023-04-03 06:29:15,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:15,662 INFO L225 Difference]: With dead ends: 10797 [2023-04-03 06:29:15,662 INFO L226 Difference]: Without dead ends: 7112 [2023-04-03 06:29:15,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:15,673 INFO L413 NwaCegarLoop]: 3212 mSDtfsCounter, 2825 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 5803 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:15,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 5803 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 715 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2023-04-03 06:29:15,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7112 states. [2023-04-03 06:29:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7112 to 7050. [2023-04-03 06:29:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7050 states, 4009 states have (on average 1.285856822150162) internal successors, (5155), 4265 states have internal predecessors, (5155), 2123 states have call successors, (2123), 919 states have call predecessors, (2123), 917 states have return successors, (2219), 2018 states have call predecessors, (2219), 2121 states have call successors, (2219) [2023-04-03 06:29:15,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7050 states to 7050 states and 9497 transitions. [2023-04-03 06:29:15,884 INFO L78 Accepts]: Start accepts. Automaton has 7050 states and 9497 transitions. Word has length 212 [2023-04-03 06:29:15,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:15,886 INFO L495 AbstractCegarLoop]: Abstraction has 7050 states and 9497 transitions. [2023-04-03 06:29:15,886 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), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-03 06:29:15,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7050 states and 9497 transitions. [2023-04-03 06:29:15,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2023-04-03 06:29:15,890 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:15,890 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 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] [2023-04-03 06:29:15,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:29:15,890 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:15,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:15,892 INFO L85 PathProgramCache]: Analyzing trace with hash 18916256, now seen corresponding path program 1 times [2023-04-03 06:29:15,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:15,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660330536] [2023-04-03 06:29:15,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:15,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2023-04-03 06:29:16,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:16,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660330536] [2023-04-03 06:29:16,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660330536] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:16,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:16,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 06:29:16,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743742128] [2023-04-03 06:29:16,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:16,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:29:16,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:16,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:29:16,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 06:29:16,347 INFO L87 Difference]: Start difference. First operand 7050 states and 9497 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 06:29:20,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:22,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:24,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:26,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:28,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:30,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:33,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:34,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:34,247 INFO L93 Difference]: Finished difference Result 21048 states and 28355 transitions. [2023-04-03 06:29:34,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 06:29:34,248 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 256 [2023-04-03 06:29:34,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:34,322 INFO L225 Difference]: With dead ends: 21048 [2023-04-03 06:29:34,322 INFO L226 Difference]: Without dead ends: 13971 [2023-04-03 06:29:34,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-03 06:29:34,356 INFO L413 NwaCegarLoop]: 2939 mSDtfsCounter, 2937 mSDsluCounter, 11474 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 14413 SdHoareTripleChecker+Invalid, 1772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:34,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 14413 Invalid, 1772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1760 Invalid, 7 Unknown, 0 Unchecked, 17.4s Time] [2023-04-03 06:29:34,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13971 states. [2023-04-03 06:29:35,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13971 to 13940. [2023-04-03 06:29:35,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13940 states, 7931 states have (on average 1.2868490732568403) internal successors, (10206), 8439 states have internal predecessors, (10206), 4194 states have call successors, (4194), 1816 states have call predecessors, (4194), 1814 states have return successors, (4388), 3978 states have call predecessors, (4388), 4192 states have call successors, (4388) [2023-04-03 06:29:35,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13940 states to 13940 states and 18788 transitions. [2023-04-03 06:29:35,267 INFO L78 Accepts]: Start accepts. Automaton has 13940 states and 18788 transitions. Word has length 256 [2023-04-03 06:29:35,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:35,268 INFO L495 AbstractCegarLoop]: Abstraction has 13940 states and 18788 transitions. [2023-04-03 06:29:35,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 3 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2023-04-03 06:29:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 13940 states and 18788 transitions. [2023-04-03 06:29:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-03 06:29:35,272 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:35,272 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 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] [2023-04-03 06:29:35,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:29:35,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:35,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:35,278 INFO L85 PathProgramCache]: Analyzing trace with hash -802132377, now seen corresponding path program 1 times [2023-04-03 06:29:35,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:35,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686972960] [2023-04-03 06:29:35,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:35,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:35,629 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2023-04-03 06:29:35,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:35,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686972960] [2023-04-03 06:29:35,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686972960] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:35,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:35,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:29:35,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107325180] [2023-04-03 06:29:35,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:35,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:29:35,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:35,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:29:35,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:29:35,631 INFO L87 Difference]: Start difference. First operand 13940 states and 18788 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2023-04-03 06:29:37,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:40,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:42,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:42,195 INFO L93 Difference]: Finished difference Result 20913 states and 28181 transitions. [2023-04-03 06:29:42,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:29:42,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) Word has length 277 [2023-04-03 06:29:42,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:42,234 INFO L225 Difference]: With dead ends: 20913 [2023-04-03 06:29:42,234 INFO L226 Difference]: Without dead ends: 7018 [2023-04-03 06:29:42,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:29:42,270 INFO L413 NwaCegarLoop]: 2679 mSDtfsCounter, 2987 mSDsluCounter, 5353 mSDsCounter, 0 mSdLazyCounter, 951 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 8032 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 951 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:42,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 8032 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 951 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2023-04-03 06:29:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2023-04-03 06:29:42,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 7018. [2023-04-03 06:29:42,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 3991 states have (on average 1.2846404409922325) internal successors, (5127), 4245 states have internal predecessors, (5127), 2113 states have call successors, (2113), 915 states have call predecessors, (2113), 913 states have return successors, (2209), 2006 states have call predecessors, (2209), 2111 states have call successors, (2209) [2023-04-03 06:29:42,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 9449 transitions. [2023-04-03 06:29:42,459 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 9449 transitions. Word has length 277 [2023-04-03 06:29:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:42,460 INFO L495 AbstractCegarLoop]: Abstraction has 7018 states and 9449 transitions. [2023-04-03 06:29:42,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (35), 2 states have call predecessors, (35), 1 states have call successors, (35) [2023-04-03 06:29:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 9449 transitions. [2023-04-03 06:29:42,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-04-03 06:29:42,464 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:42,464 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 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] [2023-04-03 06:29:42,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:29:42,464 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:42,464 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1745503141, now seen corresponding path program 1 times [2023-04-03 06:29:42,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:42,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942232187] [2023-04-03 06:29:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2023-04-03 06:29:43,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942232187] [2023-04-03 06:29:43,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942232187] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:43,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:43,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:29:43,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787396124] [2023-04-03 06:29:43,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:43,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:29:43,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:43,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:29:43,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:29:43,254 INFO L87 Difference]: Start difference. First operand 7018 states and 9449 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 06:29:46,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:48,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:48,635 INFO L93 Difference]: Finished difference Result 10693 states and 14363 transitions. [2023-04-03 06:29:48,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 06:29:48,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 292 [2023-04-03 06:29:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:48,680 INFO L225 Difference]: With dead ends: 10693 [2023-04-03 06:29:48,680 INFO L226 Difference]: Without dead ends: 10690 [2023-04-03 06:29:48,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:29:48,688 INFO L413 NwaCegarLoop]: 3445 mSDtfsCounter, 2628 mSDsluCounter, 4761 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 8206 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:48,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 8206 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1009 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2023-04-03 06:29:48,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10690 states. [2023-04-03 06:29:49,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10690 to 10456. [2023-04-03 06:29:49,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10456 states, 6019 states have (on average 1.28875228443263) internal successors, (7757), 6395 states have internal predecessors, (7757), 3029 states have call successors, (3029), 1409 states have call predecessors, (3029), 1407 states have return successors, (3251), 2860 states have call predecessors, (3251), 3027 states have call successors, (3251) [2023-04-03 06:29:49,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10456 states to 10456 states and 14037 transitions. [2023-04-03 06:29:49,048 INFO L78 Accepts]: Start accepts. Automaton has 10456 states and 14037 transitions. Word has length 292 [2023-04-03 06:29:49,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:49,049 INFO L495 AbstractCegarLoop]: Abstraction has 10456 states and 14037 transitions. [2023-04-03 06:29:49,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 06:29:49,050 INFO L276 IsEmpty]: Start isEmpty. Operand 10456 states and 14037 transitions. [2023-04-03 06:29:49,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-04-03 06:29:49,056 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:49,056 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:29:49,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:29:49,056 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:49,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1954291769, now seen corresponding path program 1 times [2023-04-03 06:29:49,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:49,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997316163] [2023-04-03 06:29:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:49,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:49,393 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2023-04-03 06:29:49,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:49,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997316163] [2023-04-03 06:29:49,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997316163] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:29:49,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:29:49,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:29:49,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88611320] [2023-04-03 06:29:49,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:29:49,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:29:49,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:29:49,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:29:49,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:49,396 INFO L87 Difference]: Start difference. First operand 10456 states and 14037 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2023-04-03 06:29:52,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:54,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:56,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:29:57,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:29:57,150 INFO L93 Difference]: Finished difference Result 25541 states and 34250 transitions. [2023-04-03 06:29:57,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:29:57,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 378 [2023-04-03 06:29:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:29:57,197 INFO L225 Difference]: With dead ends: 25541 [2023-04-03 06:29:57,197 INFO L226 Difference]: Without dead ends: 15130 [2023-04-03 06:29:57,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:29:57,219 INFO L413 NwaCegarLoop]: 3905 mSDtfsCounter, 2078 mSDsluCounter, 2604 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 6509 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:29:57,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 6509 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 808 Invalid, 3 Unknown, 0 Unchecked, 7.3s Time] [2023-04-03 06:29:57,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15130 states. [2023-04-03 06:29:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15130 to 15033. [2023-04-03 06:29:57,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15033 states, 8670 states have (on average 1.2895040369088813) internal successors, (11180), 9224 states have internal predecessors, (11180), 4322 states have call successors, (4322), 2044 states have call predecessors, (4322), 2040 states have return successors, (4647), 4070 states have call predecessors, (4647), 4320 states have call successors, (4647) [2023-04-03 06:29:57,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15033 states to 15033 states and 20149 transitions. [2023-04-03 06:29:57,824 INFO L78 Accepts]: Start accepts. Automaton has 15033 states and 20149 transitions. Word has length 378 [2023-04-03 06:29:57,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:29:57,824 INFO L495 AbstractCegarLoop]: Abstraction has 15033 states and 20149 transitions. [2023-04-03 06:29:57,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2023-04-03 06:29:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 15033 states and 20149 transitions. [2023-04-03 06:29:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-04-03 06:29:57,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:29:57,838 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:29:57,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:29:57,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:29:57,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:29:57,839 INFO L85 PathProgramCache]: Analyzing trace with hash -690873595, now seen corresponding path program 1 times [2023-04-03 06:29:57,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:29:57,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676044860] [2023-04-03 06:29:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:57,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:29:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:29:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2023-04-03 06:29:59,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:29:59,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676044860] [2023-04-03 06:29:59,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676044860] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:29:59,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105717272] [2023-04-03 06:29:59,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:29:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:29:59,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:29:59,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:29:59,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:30:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:00,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 4588 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-03 06:30:00,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:30:00,858 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2023-04-03 06:30:00,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:30:00,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105717272] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:30:00,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:30:00,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2023-04-03 06:30:00,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432961740] [2023-04-03 06:30:00,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:30:00,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 06:30:00,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:30:00,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 06:30:00,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2023-04-03 06:30:00,860 INFO L87 Difference]: Start difference. First operand 15033 states and 20149 transitions. Second operand has 11 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 6 states have call predecessors, (54), 4 states have call successors, (54) [2023-04-03 06:30:06,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:08,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:09,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:11,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:13,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:15,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:17,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:19,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:21,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:22,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:30:22,892 INFO L93 Difference]: Finished difference Result 30409 states and 40887 transitions. [2023-04-03 06:30:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-03 06:30:22,893 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 6 states have call predecessors, (54), 4 states have call successors, (54) Word has length 377 [2023-04-03 06:30:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:30:22,954 INFO L225 Difference]: With dead ends: 30409 [2023-04-03 06:30:22,955 INFO L226 Difference]: Without dead ends: 15421 [2023-04-03 06:30:22,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-03 06:30:22,994 INFO L413 NwaCegarLoop]: 2814 mSDtfsCounter, 131 mSDsluCounter, 22309 mSDsCounter, 0 mSdLazyCounter, 3063 mSolverCounterSat, 2 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 25123 SdHoareTripleChecker+Invalid, 3073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3063 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:30:22,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 25123 Invalid, 3073 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3063 Invalid, 8 Unknown, 0 Unchecked, 21.5s Time] [2023-04-03 06:30:23,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15421 states. [2023-04-03 06:30:23,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15421 to 15055. [2023-04-03 06:30:23,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15055 states, 8686 states have (on average 1.2889707575408704) internal successors, (11196), 9236 states have internal predecessors, (11196), 4322 states have call successors, (4322), 2044 states have call predecessors, (4322), 2046 states have return successors, (4661), 4074 states have call predecessors, (4661), 4320 states have call successors, (4661) [2023-04-03 06:30:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15055 states to 15055 states and 20179 transitions. [2023-04-03 06:30:23,565 INFO L78 Accepts]: Start accepts. Automaton has 15055 states and 20179 transitions. Word has length 377 [2023-04-03 06:30:23,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:30:23,566 INFO L495 AbstractCegarLoop]: Abstraction has 15055 states and 20179 transitions. [2023-04-03 06:30:23,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 15.875) internal successors, (127), 9 states have internal predecessors, (127), 4 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 6 states have call predecessors, (54), 4 states have call successors, (54) [2023-04-03 06:30:23,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15055 states and 20179 transitions. [2023-04-03 06:30:23,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2023-04-03 06:30:23,572 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:30:23,572 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:30:23,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:30:23,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:30:23,789 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:30:23,790 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:30:23,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1469335293, now seen corresponding path program 1 times [2023-04-03 06:30:23,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:30:23,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066696741] [2023-04-03 06:30:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:23,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:30:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:24,875 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2023-04-03 06:30:24,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:30:24,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066696741] [2023-04-03 06:30:24,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066696741] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:30:24,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499216503] [2023-04-03 06:30:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:24,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:30:24,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:30:24,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:30:24,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:30:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:26,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 4608 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-03 06:30:26,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:30:26,154 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 708 trivial. 0 not checked. [2023-04-03 06:30:26,154 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:30:26,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499216503] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:30:26,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:30:26,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2023-04-03 06:30:26,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829926030] [2023-04-03 06:30:26,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:30:26,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:30:26,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:30:26,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:30:26,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:30:26,156 INFO L87 Difference]: Start difference. First operand 15055 states and 20179 transitions. Second operand has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 4 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 06:30:30,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:32,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:33,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:36,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:38,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:39,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:30:39,267 INFO L93 Difference]: Finished difference Result 30133 states and 40496 transitions. [2023-04-03 06:30:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:30:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 4 states have call predecessors, (54), 2 states have call successors, (54) Word has length 378 [2023-04-03 06:30:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:30:39,322 INFO L225 Difference]: With dead ends: 30133 [2023-04-03 06:30:39,322 INFO L226 Difference]: Without dead ends: 15123 [2023-04-03 06:30:39,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:30:39,359 INFO L413 NwaCegarLoop]: 2680 mSDtfsCounter, 3 mSDsluCounter, 13373 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 16053 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:30:39,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 16053 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1911 Invalid, 4 Unknown, 0 Unchecked, 12.7s Time] [2023-04-03 06:30:39,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15123 states. [2023-04-03 06:30:39,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15123 to 15079. [2023-04-03 06:30:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15079 states, 8702 states have (on average 1.2884394392093772) internal successors, (11212), 9254 states have internal predecessors, (11212), 4322 states have call successors, (4322), 2044 states have call predecessors, (4322), 2054 states have return successors, (4717), 4082 states have call predecessors, (4717), 4320 states have call successors, (4717) [2023-04-03 06:30:39,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15079 states to 15079 states and 20251 transitions. [2023-04-03 06:30:39,881 INFO L78 Accepts]: Start accepts. Automaton has 15079 states and 20251 transitions. Word has length 378 [2023-04-03 06:30:39,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:30:39,882 INFO L495 AbstractCegarLoop]: Abstraction has 15079 states and 20251 transitions. [2023-04-03 06:30:39,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 21.666666666666668) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (62), 2 states have call predecessors, (62), 4 states have return successors, (54), 4 states have call predecessors, (54), 2 states have call successors, (54) [2023-04-03 06:30:39,882 INFO L276 IsEmpty]: Start isEmpty. Operand 15079 states and 20251 transitions. [2023-04-03 06:30:39,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-03 06:30:39,889 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:30:39,889 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:30:39,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:30:40,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-04-03 06:30:40,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:30:40,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:30:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash -334274567, now seen corresponding path program 1 times [2023-04-03 06:30:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:30:40,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366473223] [2023-04-03 06:30:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:40,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:30:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:40,903 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2023-04-03 06:30:40,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:30:40,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366473223] [2023-04-03 06:30:40,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366473223] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:30:40,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268276833] [2023-04-03 06:30:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:40,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:30:40,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:30:40,921 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:30:40,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:30:42,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:42,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 4671 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-03 06:30:42,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:30:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 778 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 431 trivial. 0 not checked. [2023-04-03 06:30:42,195 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:30:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268276833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:30:42,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:30:42,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-04-03 06:30:42,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533126294] [2023-04-03 06:30:42,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:30:42,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:30:42,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:30:42,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:30:42,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:30:42,197 INFO L87 Difference]: Start difference. First operand 15079 states and 20251 transitions. Second operand has 6 states, 4 states have (on average 34.75) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2023-04-03 06:30:45,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:47,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:49,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:52,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:30:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:30:53,649 INFO L93 Difference]: Finished difference Result 30143 states and 40503 transitions. [2023-04-03 06:30:53,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:30:53,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 34.75) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 392 [2023-04-03 06:30:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:30:53,705 INFO L225 Difference]: With dead ends: 30143 [2023-04-03 06:30:53,705 INFO L226 Difference]: Without dead ends: 15083 [2023-04-03 06:30:53,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-04-03 06:30:53,741 INFO L413 NwaCegarLoop]: 2669 mSDtfsCounter, 3 mSDsluCounter, 10653 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13322 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:30:53,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13322 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1625 Invalid, 4 Unknown, 0 Unchecked, 10.9s Time] [2023-04-03 06:30:53,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15083 states. [2023-04-03 06:30:54,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15083 to 15083. [2023-04-03 06:30:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15083 states, 8706 states have (on average 1.2883069147714221) internal successors, (11216), 9258 states have internal predecessors, (11216), 4322 states have call successors, (4322), 2044 states have call predecessors, (4322), 2054 states have return successors, (4717), 4082 states have call predecessors, (4717), 4320 states have call successors, (4717) [2023-04-03 06:30:54,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15083 states to 15083 states and 20255 transitions. [2023-04-03 06:30:54,252 INFO L78 Accepts]: Start accepts. Automaton has 15083 states and 20255 transitions. Word has length 392 [2023-04-03 06:30:54,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:30:54,253 INFO L495 AbstractCegarLoop]: Abstraction has 15083 states and 20255 transitions. [2023-04-03 06:30:54,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 34.75) internal successors, (139), 6 states have internal predecessors, (139), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2023-04-03 06:30:54,253 INFO L276 IsEmpty]: Start isEmpty. Operand 15083 states and 20255 transitions. [2023-04-03 06:30:54,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2023-04-03 06:30:54,260 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:30:54,260 INFO L195 NwaCegarLoop]: trace histogram [13, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:30:54,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-03 06:30:54,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:30:54,478 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:30:54,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:30:54,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2044626862, now seen corresponding path program 1 times [2023-04-03 06:30:54,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:30:54,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967927184] [2023-04-03 06:30:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:54,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:30:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:55,375 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2023-04-03 06:30:55,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:30:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967927184] [2023-04-03 06:30:55,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967927184] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:30:55,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327349747] [2023-04-03 06:30:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:30:55,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:30:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:30:55,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:30:55,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:30:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:30:56,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 4776 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-03 06:30:56,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:30:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 380 proven. 1 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2023-04-03 06:30:56,877 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:30:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 10 proven. 41 refuted. 0 times theorem prover too weak. 797 trivial. 0 not checked. [2023-04-03 06:30:57,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327349747] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 06:30:57,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [243482602] [2023-04-03 06:30:57,331 INFO L159 IcfgInterpreter]: Started Sifa with 224 locations of interest [2023-04-03 06:30:57,331 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:30:57,333 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:30:57,336 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:30:57,337 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:31:18,078 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 310 for LOIs [2023-04-03 06:31:25,984 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 267 for LOIs [2023-04-03 06:31:26,797 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2023-04-03 06:31:27,119 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 7