/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-snapshot.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 13:52:48,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 13:52:48,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 13:52:48,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 13:52:48,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 13:52:48,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 13:52:48,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 13:52:48,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 13:52:48,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 13:52:48,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 13:52:48,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 13:52:48,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 13:52:48,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 13:52:48,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 13:52:48,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 13:52:48,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 13:52:48,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 13:52:48,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 13:52:48,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 13:52:48,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 13:52:48,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 13:52:48,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 13:52:48,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 13:52:48,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 13:52:48,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 13:52:48,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 13:52:48,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 13:52:48,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 13:52:48,590 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 13:52:48,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 13:52:48,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 13:52:48,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 13:52:48,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 13:52:48,593 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 13:52:48,594 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 13:52:48,594 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 13:52:48,595 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 13:52:48,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 13:52:48,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 13:52:48,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 13:52:48,596 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 13:52:48,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 13:52:48,632 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 13:52:48,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 13:52:48,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 13:52:48,633 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 13:52:48,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 13:52:48,634 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 13:52:48,634 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 13:52:48,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 13:52:48,634 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 13:52:48,634 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 13:52:48,635 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 13:52:48,635 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 13:52:48,635 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 13:52:48,635 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 13:52:48,635 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 13:52:48,635 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 13:52:48,636 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 13:52:48,636 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 13:52:48,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 13:52:48,637 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 13:52:48,638 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 13:52:48,638 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 13:52:48,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 13:52:48,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 13:52:48,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:52:48,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 13:52:48,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 13:52:48,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 13:52:48,640 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 13:52:48,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 13:52:48,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 13:52:48,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 13:52:48,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 13:52:48,920 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 13:52:48,921 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 13:52:48,923 INFO L432 ainManager$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--md--dm-snapshot.ko-entry_point.cil.out.i [2023-04-01 13:52:50,084 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 13:52:50,664 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 13:52:50,665 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--md--dm-snapshot.ko-entry_point.cil.out.i [2023-04-01 13:52:50,722 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef3da01/6c81893f9f7a41e6b9706a8930e2a2ad/FLAGcc124a05e [2023-04-01 13:52:50,740 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03ef3da01/6c81893f9f7a41e6b9706a8930e2a2ad [2023-04-01 13:52:50,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 13:52:50,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 13:52:50,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 13:52:50,749 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 13:52:50,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 13:52:50,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:52:50" (1/1) ... [2023-04-01 13:52:50,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570f2af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:50, skipping insertion in model container [2023-04-01 13:52:50,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:52:50" (1/1) ... [2023-04-01 13:52:50,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 13:52:50,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 13:52:53,555 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--md--dm-snapshot.ko-entry_point.cil.out.i[294962,294975] [2023-04-01 13:52:53,619 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:52:53,672 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 13:52:53,993 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--md--dm-snapshot.ko-entry_point.cil.out.i[294962,294975] [2023-04-01 13:52:54,003 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:52:54,153 WARN L667 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 13:52:54,159 INFO L208 MainTranslator]: Completed translation [2023-04-01 13:52:54,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54 WrapperNode [2023-04-01 13:52:54,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 13:52:54,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 13:52:54,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 13:52:54,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 13:52:54,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 13:52:54,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 13:52:54,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 13:52:54,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 13:52:54,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (1/1) ... [2023-04-01 13:52:54,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:52:54,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:52:54,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 13:52:54,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 13:52:54,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2023-04-01 13:52:54,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~chunk_t~0~X~~chunk_t~0~TO~int [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-01 13:52:54,666 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure fls_long [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __rounddown_pow_of_two [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 13:52:54,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 13:52:54,668 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_HLIST_NODE [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_empty [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_del [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_add_head [2023-04-01 13:52:54,669 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-04-01 13:52:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-04-01 13:52:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-04-01 13:52:54,670 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_8 [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_11 [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_on_bit [2023-04-01 13:52:54,671 INFO L138 BoogieDeclarations]: Found implementation of procedure i_size_read [2023-04-01 13:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create_slab_pool [2023-04-01 13:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_init [2023-04-01 13:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_add [2023-04-01 13:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_get [2023-04-01 13:52:54,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_per_bio_data [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bio_get_target_bio_nr [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_chunk_number [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consecutive_chunk_count [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consecutive_chunk_count_inc [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_consecutive_chunk_count_dec [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_size [2023-04-01 13:52:54,673 INFO L138 BoogieDeclarations]: Found implementation of procedure sector_to_chunk [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_snap_origin [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_snap_cow [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk_to_sector [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_equal [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tracked_chunk [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure is_bio_tracked [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure track_chunk [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_tracking_chunk [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __chunk_is_tracked [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __check_for_conflicting_io [2023-04-01 13:52:54,674 INFO L138 BoogieDeclarations]: Found implementation of procedure init_origin_hash [2023-04-01 13:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure exit_origin_hash [2023-04-01 13:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_hash [2023-04-01 13:52:54,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __lookup_origin [2023-04-01 13:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __insert_origin [2023-04-01 13:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __lookup_dm_origin [2023-04-01 13:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __insert_dm_origin [2023-04-01 13:52:54,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __remove_dm_origin [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_snapshots_sharing_cow [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __validate_exception_handover [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __insert_snapshot [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure register_snapshot [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure reregister_snapshot [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_snapshot [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_table_init [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_table_exit [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure exception_hash [2023-04-01 13:52:54,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_remove_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_lookup_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_completed_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure free_completed_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pending_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pending_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_insert_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_add_exception [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __minimum_chunk_size [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_max_buckets [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure init_hash_tables [2023-04-01 13:52:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_shutdown [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_queued_bios_after_merge [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __remove_single_exception_chunk [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_single_exception_chunk [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pending_exceptions_done_count [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure increment_pending_exceptions_done_count [2023-04-01 13:52:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_merge_next_chunks [2023-04-01 13:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_callback [2023-04-01 13:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure start_merge [2023-04-01 13:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_merge [2023-04-01 13:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_ctr [2023-04-01 13:52:54,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_exceptions [2023-04-01 13:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __handover_exceptions [2023-04-01 13:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_dtr [2023-04-01 13:52:54,681 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_bios [2023-04-01 13:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_origin_bios [2023-04-01 13:52:54,682 INFO L138 BoogieDeclarations]: Found implementation of procedure error_bios [2023-04-01 13:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __invalidate_snapshot [2023-04-01 13:52:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure pending_complete [2023-04-01 13:52:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure commit_callback [2023-04-01 13:52:54,690 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_exception [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_callback [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure start_copy [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure full_bio_end_io [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure start_full_bio [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __lookup_pending_exception [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_pending_exception [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_exception [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_map [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_merge_map [2023-04-01 13:52:54,691 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_end_io [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_merge_presuspend [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_preresume [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_resume [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure get_origin_minimum_chunksize [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_merge_resume [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_status [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure snapshot_iterate_devices [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __origin_write [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure do_origin [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_write_extent [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_ctr [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_dtr [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_map [2023-04-01 13:52:54,692 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_resume [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_postsuspend [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_status [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_merge [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure origin_iterate_devices [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_snapshot_init [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_snapshot_exit [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_5 [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_7 [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_6 [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-01 13:52:54,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_23 [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_24 [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mempool_alloc_25 [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_logical_block_size [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_logical_block_size [2023-04-01 13:52:54,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __find_exception_store_type [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure _get_exception_store_type [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_type [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure put_type [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_type_register [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_type_unregister [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure set_chunk_size [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_set_chunk_size [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_create [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_destroy [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_init [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_exception_store_exit [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_dtr [2023-04-01 13:52:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_read_metadata [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_prepare_exception [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_commit_exception [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_usage [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_ctr [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure transient_status [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_transient_snapshot_init [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_transient_snapshot_exit [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dm_exception_store_type_4 [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dm_exception_store_type_3 [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_4 [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_3 [2023-04-01 13:52:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_area [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure free_area [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure do_metadata [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure chunk_io [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure area_location [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure skip_metadata [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure area_io [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_memory_area [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_disk_area [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure read_header [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure write_header [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exception [2023-04-01 13:52:54,697 INFO L138 BoogieDeclarations]: Found implementation of procedure read_exception [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure write_exception [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_exception [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure insert_exceptions [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure read_exceptions [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_info [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_usage [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_dtr [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_read_metadata [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_prepare_exception [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_commit_exception [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_prepare_merge [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_commit_merge [2023-04-01 13:52:54,698 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_drop_snapshot [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_ctr [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure persistent_status [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_persistent_snapshot_init [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_persistent_snapshot_exit [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dm_exception_store_type_1 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_dm_exception_store_type_2 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_1 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_main_exported_2 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_vmalloc_92 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_vzalloc_93 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_vmalloc_94 [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 13:52:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 13:52:54,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-01 13:52:54,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-01 13:52:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-01 13:52:54,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-01 13:52:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_workqueue_key [2023-04-01 13:52:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2023-04-01 13:52:54,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_work_on_stack [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-04-01 13:52:54,706 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_accept_partial_bio [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_client_create [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_client_destroy [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_forget [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_get_device_size [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_prefetch [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_read [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_release [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_bufio_set_minimum_buffers [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_hold [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_internal_resume_fast [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_internal_suspend_fast [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_io [2023-04-01 13:52:54,707 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_io_client_create [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_io_client_destroy [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_client_create [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_client_destroy [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_copy [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_do_callback [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_kcopyd_prepare_callback [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_register_target [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_set_target_max_io_len [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_suspended [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_event [2023-04-01 13:52:54,708 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_md [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_size [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_unregister_target [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_vcalloc [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write_nested [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_make_request [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2023-04-01 13:52:54,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrdup [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtouint [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_postsuspend_5 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_postsuspend_6 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_preresume_7 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_presuspend_6 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_presuspend_7 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_4 [2023-04-01 13:52:54,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_create [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_destroy [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure mempool_free [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-01 13:52:54,711 INFO L138 BoogieDeclarations]: Found implementation of procedure out_of_line_wait_on_bit [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_bit [2023-04-01 13:52:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 13:52:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 13:52:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 13:52:54,713 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 13:52:54,713 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure fls_long [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure __rounddown_pow_of_two [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 13:52:54,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 13:52:54,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 13:52:54,716 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_HLIST_NODE [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_empty [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_del [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_add_head [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-04-01 13:52:54,717 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_8 [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 13:52:54,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_11 [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_bit [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure out_of_line_wait_on_bit [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure bit_wait [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure wait_on_bit [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2023-04-01 13:52:54,719 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure down_write_nested [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_23 [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_24 [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dm_exception_store_type_1 [2023-04-01 13:52:54,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dm_exception_store_type_4 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_5 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dm_exception_store_type_2 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_7 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_dm_exception_store_type_3 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_6 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure i_size_read [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_destroy [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mempool_alloc_25 [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_alloc_slab [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_free_slab [2023-04-01 13:52:54,721 INFO L130 BoogieDeclarations]: Found specification of procedure mempool_create_slab_pool [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_init [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_add [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_get [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure generic_make_request [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_per_bio_data [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bio_get_target_bio_nr [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_register_target [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_unregister_target [2023-04-01 13:52:54,722 INFO L130 BoogieDeclarations]: Found specification of procedure dm_hold [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_suspended [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_accept_partial_bio [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_set_target_max_io_len [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_size [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_md [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_event [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_vcalloc [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_client_create [2023-04-01 13:52:54,723 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_client_destroy [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_copy [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_prepare_callback [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_kcopyd_do_callback [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_internal_suspend_fast [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_internal_resume_fast [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_snap_origin [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_snap_cow [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_chunk_number [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consecutive_chunk_count [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consecutive_chunk_count_inc [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure dm_consecutive_chunk_count_dec [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_size [2023-04-01 13:52:54,724 INFO L130 BoogieDeclarations]: Found specification of procedure sector_to_chunk [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_create [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_destroy [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_init [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_exit [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure chunk_to_sector [2023-04-01 13:52:54,725 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_equal [2023-04-01 13:52:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure init_tracked_chunk [2023-04-01 13:52:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure is_bio_tracked [2023-04-01 13:52:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure track_chunk [2023-04-01 13:52:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure stop_tracking_chunk [2023-04-01 13:52:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure __chunk_is_tracked [2023-04-01 13:52:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure __check_for_conflicting_io [2023-04-01 13:52:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure init_origin_hash [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure exit_origin_hash [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure origin_hash [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __lookup_origin [2023-04-01 13:52:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure __insert_origin [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __lookup_dm_origin [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __insert_dm_origin [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __remove_dm_origin [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __find_snapshots_sharing_cow [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __validate_exception_handover [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure __insert_snapshot [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure register_snapshot [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure reregister_snapshot [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_snapshot [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_table_init [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_table_exit [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure exception_hash [2023-04-01 13:52:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure dm_remove_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure dm_lookup_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_completed_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure free_completed_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pending_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure free_pending_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure dm_insert_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure dm_add_exception [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure __minimum_chunk_size [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure calc_max_buckets [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure init_hash_tables [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure merge_shutdown [2023-04-01 13:52:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure __release_queued_bios_after_merge [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure __remove_single_exception_chunk [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure flush_bios [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure remove_single_exception_chunk [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure origin_write_extent [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure merge_callback [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure read_pending_exceptions_done_count [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure increment_pending_exceptions_done_count [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_merge_next_chunks [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure error_bios [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure start_merge [2023-04-01 13:52:54,735 INFO L130 BoogieDeclarations]: Found specification of procedure stop_merge [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_ctr [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __free_exceptions [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __handover_exceptions [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_dtr [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure do_origin [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure retry_origin_bios [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure __invalidate_snapshot [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure pending_complete [2023-04-01 13:52:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure commit_callback [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure complete_exception [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure copy_callback [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure start_copy [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure full_bio_end_io [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure start_full_bio [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __lookup_pending_exception [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure __find_pending_exception [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure remap_exception [2023-04-01 13:52:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_map [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_merge_map [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_end_io [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_merge_presuspend [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_preresume [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_resume [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_origin_minimum_chunksize [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_merge_resume [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_status [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~status_type_t~0~X~$Pointer$~X~int~TO~int [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure snapshot_iterate_devices [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~sector_t~0~X~~sector_t~0~X~$Pointer$~TO~int [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure __origin_write [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure origin_ctr [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure origin_dtr [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure origin_map [2023-04-01 13:52:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure origin_resume [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure origin_postsuspend [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure origin_status [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure origin_merge [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure origin_iterate_devices [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_snapshot_init [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure dm_snapshot_exit [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_postsuspend_6 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_preresume_7 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_presuspend_6 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_postsuspend_5 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_presuspend_7 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_1 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_2 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_4 [2023-04-01 13:52:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_main_exported_3 [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtouint [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure kstrdup [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure queue_logical_block_size [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_logical_block_size [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_type_register [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_type_unregister [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure dm_exception_store_set_chunk_size [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure dm_persistent_snapshot_init [2023-04-01 13:52:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure dm_persistent_snapshot_exit [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure dm_transient_snapshot_init [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure dm_transient_snapshot_exit [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure __find_exception_store_type [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure _get_exception_store_type [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure get_type [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure put_type [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure set_chunk_size [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure transient_dtr [2023-04-01 13:52:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure transient_read_metadata [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure transient_prepare_exception [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure transient_commit_exception [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure transient_usage [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure transient_ctr [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure transient_status [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_4 [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2023-04-01 13:52:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_work_on_stack [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_workqueue_key [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_vmalloc_92 [2023-04-01 13:52:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_vmalloc_94 [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_vzalloc_93 [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_io_client_create [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_io_client_destroy [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_io [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_client_create [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_client_destroy [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_read [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_prefetch [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_release [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_forget [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_set_minimum_buffers [2023-04-01 13:52:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure dm_bufio_get_device_size [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_area [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure free_area [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure do_metadata [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure chunk_io [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure area_location [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure skip_metadata [2023-04-01 13:52:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure area_io [2023-04-01 13:52:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure zero_memory_area [2023-04-01 13:52:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure zero_disk_area [2023-04-01 13:52:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure read_header [2023-04-01 13:52:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure write_header [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_exception [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure read_exception [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure write_exception [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure clear_exception [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure insert_exceptions [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~chunk_t~0~X~~chunk_t~0~TO~int [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure read_exceptions [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_info [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_usage [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_dtr [2023-04-01 13:52:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_read_metadata [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_prepare_exception [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_commit_exception [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_prepare_merge [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_commit_merge [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_drop_snapshot [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_ctr [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure persistent_status [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2023-04-01 13:52:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 13:52:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 13:52:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 13:52:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 13:52:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 13:52:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 13:52:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 13:52:55,718 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 13:52:55,724 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 13:52:56,048 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 13:53:02,784 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 13:53:04,013 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 13:53:04,014 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 13:53:04,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:53:04 BoogieIcfgContainer [2023-04-01 13:53:04,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 13:53:04,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 13:53:04,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 13:53:04,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 13:53:04,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:52:50" (1/3) ... [2023-04-01 13:53:04,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167ec306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:53:04, skipping insertion in model container [2023-04-01 13:53:04,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:52:54" (2/3) ... [2023-04-01 13:53:04,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167ec306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:53:04, skipping insertion in model container [2023-04-01 13:53:04,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:53:04" (3/3) ... [2023-04-01 13:53:04,028 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--md--dm-snapshot.ko-entry_point.cil.out.i [2023-04-01 13:53:04,045 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 13:53:04,045 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 13:53:04,156 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 13:53:04,162 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;@38179adf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 13:53:04,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 13:53:04,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 3197 states, 1854 states have (on average 1.3004314994606256) internal successors, (2411), 1933 states have internal predecessors, (2411), 1001 states have call successors, (1001), 336 states have call predecessors, (1001), 335 states have return successors, (992), 961 states have call predecessors, (992), 992 states have call successors, (992) [2023-04-01 13:53:04,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2023-04-01 13:53:04,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:53:04,206 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:53:04,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:53:04,211 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:53:04,212 INFO L85 PathProgramCache]: Analyzing trace with hash -55264230, now seen corresponding path program 1 times [2023-04-01 13:53:04,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:53:04,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992843062] [2023-04-01 13:53:04,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:53:04,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:53:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:53:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2271 trivial. 0 not checked. [2023-04-01 13:53:05,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:53:05,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992843062] [2023-04-01 13:53:05,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992843062] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:53:05,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:53:05,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:53:05,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021994962] [2023-04-01 13:53:05,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:53:05,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:53:05,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:53:05,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:53:05,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:05,548 INFO L87 Difference]: Start difference. First operand has 3197 states, 1854 states have (on average 1.3004314994606256) internal successors, (2411), 1933 states have internal predecessors, (2411), 1001 states have call successors, (1001), 336 states have call predecessors, (1001), 335 states have return successors, (992), 961 states have call predecessors, (992), 992 states have call successors, (992) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:08,237 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 [] [2023-04-01 13:53:11,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:13,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:13,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:53:13,376 INFO L93 Difference]: Finished difference Result 9043 states and 12698 transitions. [2023-04-01 13:53:13,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:53:13,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 377 [2023-04-01 13:53:13,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:53:13,448 INFO L225 Difference]: With dead ends: 9043 [2023-04-01 13:53:13,448 INFO L226 Difference]: Without dead ends: 5953 [2023-04-01 13:53:13,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:13,480 INFO L413 NwaCegarLoop]: 3974 mSDtfsCounter, 4091 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 7755 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-01 13:53:13,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 7755 Invalid, 679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 674 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2023-04-01 13:53:13,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5953 states. [2023-04-01 13:53:13,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5953 to 5948. [2023-04-01 13:53:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 3471 states have (on average 1.292422932872371) internal successors, (4486), 3600 states have internal predecessors, (4486), 1831 states have call successors, (1831), 647 states have call predecessors, (1831), 645 states have return successors, (1828), 1767 states have call predecessors, (1828), 1828 states have call successors, (1828) [2023-04-01 13:53:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 8145 transitions. [2023-04-01 13:53:13,903 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 8145 transitions. Word has length 377 [2023-04-01 13:53:13,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:53:13,907 INFO L495 AbstractCegarLoop]: Abstraction has 5948 states and 8145 transitions. [2023-04-01 13:53:13,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:13,908 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 8145 transitions. [2023-04-01 13:53:13,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2023-04-01 13:53:13,921 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:53:13,922 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:53:13,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 13:53:13,922 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:53:13,923 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:53:13,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1648701736, now seen corresponding path program 1 times [2023-04-01 13:53:13,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:53:13,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553905901] [2023-04-01 13:53:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:53:13,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:53:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:53:14,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2271 trivial. 0 not checked. [2023-04-01 13:53:14,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:53:14,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553905901] [2023-04-01 13:53:14,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553905901] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:53:14,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:53:14,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:53:14,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279502620] [2023-04-01 13:53:14,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:53:14,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:53:14,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:53:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:53:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:14,506 INFO L87 Difference]: Start difference. First operand 5948 states and 8145 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:15,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:17,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:53:17,562 INFO L93 Difference]: Finished difference Result 17400 states and 23772 transitions. [2023-04-01 13:53:17,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:53:17,563 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 379 [2023-04-01 13:53:17,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:53:17,629 INFO L225 Difference]: With dead ends: 17400 [2023-04-01 13:53:17,629 INFO L226 Difference]: Without dead ends: 11528 [2023-04-01 13:53:17,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:17,663 INFO L413 NwaCegarLoop]: 4161 mSDtfsCounter, 3981 mSDsluCounter, 3727 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 7888 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-01 13:53:17,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 7888 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-04-01 13:53:17,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11528 states. [2023-04-01 13:53:18,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11528 to 11522. [2023-04-01 13:53:18,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11522 states, 6711 states have (on average 1.2896736700938758) internal successors, (8655), 6968 states have internal predecessors, (8655), 3539 states have call successors, (3539), 1273 states have call predecessors, (3539), 1271 states have return successors, (3536), 3413 states have call predecessors, (3536), 3536 states have call successors, (3536) [2023-04-01 13:53:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11522 states to 11522 states and 15730 transitions. [2023-04-01 13:53:18,162 INFO L78 Accepts]: Start accepts. Automaton has 11522 states and 15730 transitions. Word has length 379 [2023-04-01 13:53:18,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:53:18,164 INFO L495 AbstractCegarLoop]: Abstraction has 11522 states and 15730 transitions. [2023-04-01 13:53:18,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:18,165 INFO L276 IsEmpty]: Start isEmpty. Operand 11522 states and 15730 transitions. [2023-04-01 13:53:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-04-01 13:53:18,171 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:53:18,171 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:53:18,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 13:53:18,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:53:18,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:53:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1156273067, now seen corresponding path program 1 times [2023-04-01 13:53:18,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:53:18,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071359930] [2023-04-01 13:53:18,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:53:18,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:53:18,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:53:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2271 trivial. 0 not checked. [2023-04-01 13:53:18,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:53:18,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071359930] [2023-04-01 13:53:18,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071359930] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:53:18,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:53:18,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:53:18,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141618130] [2023-04-01 13:53:18,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:53:18,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:53:18,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:53:18,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:53:18,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:18,741 INFO L87 Difference]: Start difference. First operand 11522 states and 15730 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:21,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:23,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:25,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:53:26,060 INFO L93 Difference]: Finished difference Result 33128 states and 45115 transitions. [2023-04-01 13:53:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:53:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 384 [2023-04-01 13:53:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:53:26,199 INFO L225 Difference]: With dead ends: 33128 [2023-04-01 13:53:26,199 INFO L226 Difference]: Without dead ends: 21682 [2023-04-01 13:53:26,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:53:26,263 INFO L413 NwaCegarLoop]: 6277 mSDtfsCounter, 3978 mSDsluCounter, 3727 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3978 SdHoareTripleChecker+Valid, 10004 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-01 13:53:26,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3978 Valid, 10004 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 899 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-04-01 13:53:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21682 states. [2023-04-01 13:53:27,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21682 to 21678. [2023-04-01 13:53:27,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21678 states, 12600 states have (on average 1.2864285714285715) internal successors, (16209), 13086 states have internal predecessors, (16209), 6641 states have call successors, (6641), 2438 states have call predecessors, (6641), 2436 states have return successors, (6638), 6405 states have call predecessors, (6638), 6638 states have call successors, (6638) [2023-04-01 13:53:27,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21678 states to 21678 states and 29488 transitions. [2023-04-01 13:53:27,415 INFO L78 Accepts]: Start accepts. Automaton has 21678 states and 29488 transitions. Word has length 384 [2023-04-01 13:53:27,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:53:27,418 INFO L495 AbstractCegarLoop]: Abstraction has 21678 states and 29488 transitions. [2023-04-01 13:53:27,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2023-04-01 13:53:27,418 INFO L276 IsEmpty]: Start isEmpty. Operand 21678 states and 29488 transitions. [2023-04-01 13:53:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2023-04-01 13:53:27,426 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:53:27,427 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 16, 16, 16, 16, 16, 16, 16, 16, 16, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:53:27,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 13:53:27,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:53:27,428 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:53:27,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1406687020, now seen corresponding path program 1 times [2023-04-01 13:53:27,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:53:27,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331045420] [2023-04-01 13:53:27,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:53:27,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:53:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:53:28,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2279 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2279 trivial. 0 not checked. [2023-04-01 13:53:28,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:53:28,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331045420] [2023-04-01 13:53:28,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331045420] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:53:28,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:53:28,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 13:53:28,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083930049] [2023-04-01 13:53:28,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:53:28,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 13:53:28,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:53:28,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 13:53:28,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 13:53:28,565 INFO L87 Difference]: Start difference. First operand 21678 states and 29488 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-01 13:53:31,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:33,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-01 13:53:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:53:33,977 INFO L93 Difference]: Finished difference Result 21742 states and 29536 transitions. [2023-04-01 13:53:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 13:53:33,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 463 [2023-04-01 13:53:33,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:53:33,981 INFO L225 Difference]: With dead ends: 21742 [2023-04-01 13:53:33,981 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 13:53:34,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 13:53:34,064 INFO L413 NwaCegarLoop]: 3916 mSDtfsCounter, 4075 mSDsluCounter, 4004 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4075 SdHoareTripleChecker+Valid, 7920 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-01 13:53:34,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4075 Valid, 7920 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 613 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2023-04-01 13:53:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 13:53:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 13:53:34,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 13:53:34,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 13:53:34,072 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 463 [2023-04-01 13:53:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:53:34,073 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 13:53:34,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 3 states have call successors, (62), 3 states have call predecessors, (62), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2023-04-01 13:53:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 13:53:34,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 13:53:34,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 13:53:34,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 13:53:34,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.