./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68ab79e6f1cd195ff89e9316632c84dfdb1ee61de295f555610ad4d3f6315c80 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 03:27:42,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 03:27:42,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 03:27:42,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 03:27:42,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 03:27:42,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 03:27:42,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 03:27:42,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 03:27:42,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 03:27:42,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 03:27:42,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 03:27:42,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 03:27:42,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 03:27:42,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 03:27:42,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 03:27:42,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 03:27:42,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 03:27:42,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 03:27:42,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 03:27:42,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 03:27:42,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 03:27:42,415 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 03:27:42,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 03:27:42,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 03:27:42,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 03:27:42,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 03:27:42,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 03:27:42,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 03:27:42,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 03:27:42,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 03:27:42,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 03:27:42,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 03:27:42,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 03:27:42,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 03:27:42,428 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 03:27:42,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 03:27:42,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 03:27:42,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 03:27:42,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 03:27:42,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 03:27:42,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 03:27:42,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 03:27:42,470 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 03:27:42,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 03:27:42,471 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 03:27:42,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 03:27:42,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 03:27:42,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 03:27:42,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 03:27:42,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 03:27:42,473 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 03:27:42,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 03:27:42,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 03:27:42,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 03:27:42,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 03:27:42,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 03:27:42,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 03:27:42,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 03:27:42,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 03:27:42,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 03:27:42,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 03:27:42,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 03:27:42,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 03:27:42,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:27:42,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 03:27:42,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 03:27:42,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 03:27:42,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 03:27:42,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 03:27:42,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 03:27:42,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 03:27:42,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 03:27:42,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 03:27:42,478 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ab79e6f1cd195ff89e9316632c84dfdb1ee61de295f555610ad4d3f6315c80 [2021-12-18 03:27:42,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 03:27:42,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 03:27:42,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 03:27:42,717 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 03:27:42,717 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 03:27:42,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-18 03:27:42,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384d4f46a/5a39afd470c2407a97a05b74adce87b9/FLAG862fe3a80 [2021-12-18 03:27:43,698 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 03:27:43,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-18 03:27:43,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384d4f46a/5a39afd470c2407a97a05b74adce87b9/FLAG862fe3a80 [2021-12-18 03:27:44,245 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384d4f46a/5a39afd470c2407a97a05b74adce87b9 [2021-12-18 03:27:44,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 03:27:44,249 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 03:27:44,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 03:27:44,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 03:27:44,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 03:27:44,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:27:44" (1/1) ... [2021-12-18 03:27:44,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7630ae8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:44, skipping insertion in model container [2021-12-18 03:27:44,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:27:44" (1/1) ... [2021-12-18 03:27:44,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 03:27:44,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 03:27:50,105 WARN L230 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-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2021-12-18 03:27:50,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:27:50,521 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 03:27:51,323 WARN L230 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-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2021-12-18 03:27:51,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 03:27:51,577 INFO L208 MainTranslator]: Completed translation [2021-12-18 03:27:51,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51 WrapperNode [2021-12-18 03:27:51,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 03:27:51,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 03:27:51,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 03:27:51,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 03:27:51,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:51,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:52,665 INFO L137 Inliner]: procedures = 644, calls = 13325, calls flagged for inlining = 231, calls inlined = 205, statements flattened = 26582 [2021-12-18 03:27:52,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 03:27:52,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 03:27:52,681 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 03:27:52,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 03:27:52,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:52,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 03:27:53,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 03:27:53,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 03:27:53,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 03:27:53,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (1/1) ... [2021-12-18 03:27:53,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 03:27:53,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 03:27:53,888 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) [2021-12-18 03:27:53,910 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 [2021-12-18 03:27:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_init [2021-12-18 03:27:53,926 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_init [2021-12-18 03:27:53,926 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_ec_hdr [2021-12-18 03:27:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_ec_hdr [2021-12-18 03:27:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_unmap_leb [2021-12-18 03:27:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_unmap_leb [2021-12-18 03:27:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-18 03:27:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-12-18 03:27:53,927 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-12-18 03:27:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-12-18 03:27:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-12-18 03:27:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_resize_volume [2021-12-18 03:27:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_resize_volume [2021-12-18 03:27:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_internal_volumes [2021-12-18 03:27:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_internal_volumes [2021-12-18 03:27:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure __schedule_ubi_work [2021-12-18 03:27:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __schedule_ubi_work [2021-12-18 03:27:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_volume_notify [2021-12-18 03:27:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_volume_notify [2021-12-18 03:27:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 03:27:53,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 03:27:53,929 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_detach_mtd_dev [2021-12-18 03:27:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_detach_mtd_dev [2021-12-18 03:27:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2021-12-18 03:27:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2021-12-18 03:27:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure erase_block [2021-12-18 03:27:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_block [2021-12-18 03:27:53,930 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_pending [2021-12-18 03:27:53,930 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_pending [2021-12-18 03:27:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-18 03:27:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-18 03:27:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-18 03:27:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-18 03:27:53,931 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2021-12-18 03:27:53,931 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2021-12-18 03:27:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_read_leb [2021-12-18 03:27:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_read_leb [2021-12-18 03:27:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_device_info [2021-12-18 03:27:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_device_info [2021-12-18 03:27:53,932 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_cdev_ioctl [2021-12-18 03:27:53,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_cdev_ioctl [2021-12-18 03:27:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2021-12-18 03:27:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2021-12-18 03:27:53,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-18 03:27:53,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-18 03:27:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_sysfs_close [2021-12-18 03:27:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_sysfs_close [2021-12-18 03:27:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure vtbl_check [2021-12-18 03:27:53,934 INFO L138 BoogieDeclarations]: Found implementation of procedure vtbl_check [2021-12-18 03:27:53,934 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_vid_hdr [2021-12-18 03:27:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_vid_hdr [2021-12-18 03:27:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_cdev_ioctl [2021-12-18 03:27:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_cdev_ioctl [2021-12-18 03:27:53,935 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-18 03:27:53,935 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-18 03:27:53,936 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_compare_lebs [2021-12-18 03:27:53,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_compare_lebs [2021-12-18 03:27:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_fm_peb [2021-12-18 03:27:53,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_fm_peb [2021-12-18 03:27:53,937 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 03:27:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 03:27:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2021-12-18 03:27:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2021-12-18 03:27:53,938 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_ioctl [2021-12-18 03:27:53,938 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_ioctl [2021-12-18 03:27:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_fastmap [2021-12-18 03:27:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_fastmap [2021-12-18 03:27:53,939 INFO L130 BoogieDeclarations]: Found specification of procedure is_error_sane [2021-12-18 03:27:53,939 INFO L138 BoogieDeclarations]: Found implementation of procedure is_error_sane [2021-12-18 03:27:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_vid_hdr [2021-12-18 03:27:53,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_vid_hdr [2021-12-18 03:27:53,940 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vid_hdr [2021-12-18 03:27:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vid_hdr [2021-12-18 03:27:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure rb_next [2021-12-18 03:27:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_next [2021-12-18 03:27:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_volume [2021-12-18 03:27:53,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_volume [2021-12-18 03:27:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 03:27:53,941 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calc_data_len [2021-12-18 03:27:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calc_data_len [2021-12-18 03:27:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_data [2021-12-18 03:27:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_data [2021-12-18 03:27:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_close [2021-12-18 03:27:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_close [2021-12-18 03:27:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_vid_hdr [2021-12-18 03:27:53,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_vid_hdr [2021-12-18 03:27:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 03:27:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-18 03:27:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-18 03:27:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure rb_link_node [2021-12-18 03:27:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_link_node [2021-12-18 03:27:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_find_av [2021-12-18 03:27:53,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_find_av [2021-12-18 03:27:53,944 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 03:27:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 03:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-18 03:27:53,945 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-18 03:27:53,945 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 03:27:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 03:27:53,946 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ubi_work [2021-12-18 03:27:53,946 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ubi_work [2021-12-18 03:27:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase___0 [2021-12-18 03:27:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase___0 [2021-12-18 03:27:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-18 03:27:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-18 03:27:53,947 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-18 03:27:53,947 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-18 03:27:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_ec_hdr [2021-12-18 03:27:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_ec_hdr [2021-12-18 03:27:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 03:27:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_not_bad [2021-12-18 03:27:53,948 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_not_bad [2021-12-18 03:27:53,948 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-18 03:27:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-18 03:27:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_eb [2021-12-18 03:27:53,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_eb [2021-12-18 03:27:53,949 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 03:27:53,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 03:27:53,950 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calculate_reserved [2021-12-18 03:27:53,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calculate_reserved [2021-12-18 03:27:53,952 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit_dev [2021-12-18 03:27:53,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit_dev [2021-12-18 03:27:53,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 03:27:53,954 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr [2021-12-18 03:27:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr [2021-12-18 03:27:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2021-12-18 03:27:53,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2021-12-18 03:27:53,955 INFO L130 BoogieDeclarations]: Found specification of procedure find_mean_wl_entry [2021-12-18 03:27:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mean_wl_entry [2021-12-18 03:27:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-18 03:27:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-18 03:27:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 03:27:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2021-12-18 03:27:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2021-12-18 03:27:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-12-18 03:27:53,961 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-12-18 03:27:53,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 03:27:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 03:27:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_data [2021-12-18 03:27:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_data [2021-12-18 03:27:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_add [2021-12-18 03:27:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_add [2021-12-18 03:27:53,962 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-12-18 03:27:53,962 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-12-18 03:27:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-12-18 03:27:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-12-18 03:27:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2021-12-18 03:27:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2021-12-18 03:27:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 03:27:53,963 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 03:27:53,963 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-18 03:27:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-18 03:27:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2021-12-18 03:27:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2021-12-18 03:27:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure new_fm_vhdr [2021-12-18 03:27:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure new_fm_vhdr [2021-12-18 03:27:53,964 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2021-12-18 03:27:53,964 INFO L138 BoogieDeclarations]: Found implementation of procedure yield [2021-12-18 03:27:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-12-18 03:27:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-12-18 03:27:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure find_wl_entry [2021-12-18 03:27:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure find_wl_entry [2021-12-18 03:27:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_io [2021-12-18 03:27:53,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_io [2021-12-18 03:27:53,965 INFO L130 BoogieDeclarations]: Found specification of procedure __vmalloc [2021-12-18 03:27:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __vmalloc [2021-12-18 03:27:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_is_bad [2021-12-18 03:27:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_is_bad [2021-12-18 03:27:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure vol_id2idx [2021-12-18 03:27:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_id2idx [2021-12-18 03:27:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2021-12-18 03:27:53,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2021-12-18 03:27:53,966 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-18 03:27:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-18 03:27:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 03:27:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_reserved [2021-12-18 03:27:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_reserved [2021-12-18 03:27:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_fm_peb [2021-12-18 03:27:53,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_fm_peb [2021-12-18 03:27:53,967 INFO L130 BoogieDeclarations]: Found specification of procedure in_wl_tree [2021-12-18 03:27:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure in_wl_tree [2021-12-18 03:27:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ai [2021-12-18 03:27:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ai [2021-12-18 03:27:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-18 03:27:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-18 03:27:53,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2021-12-18 03:27:53,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2021-12-18 03:27:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_peb [2021-12-18 03:27:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_peb [2021-12-18 03:27:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-18 03:27:53,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-18 03:27:53,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 03:27:53,970 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_ai [2021-12-18 03:27:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_ai [2021-12-18 03:27:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 03:27:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 03:27:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_aeb [2021-12-18 03:27:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_aeb [2021-12-18 03:27:53,971 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_av [2021-12-18 03:27:53,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_av [2021-12-18 03:27:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_leb [2021-12-18 03:27:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure write_leb [2021-12-18 03:27:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure rb_erase [2021-12-18 03:27:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_erase [2021-12-18 03:27:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-18 03:27:53,972 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-18 03:27:53,972 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_erase [2021-12-18 03:27:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_erase [2021-12-18 03:27:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_del [2021-12-18 03:27:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_del [2021-12-18 03:27:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure validate_ec_hdr [2021-12-18 03:27:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_ec_hdr [2021-12-18 03:27:53,973 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_compat [2021-12-18 03:27:53,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_compat [2021-12-18 03:27:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_gen [2021-12-18 03:27:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_gen [2021-12-18 03:27:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_av [2021-12-18 03:27:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_av [2021-12-18 03:27:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-18 03:27:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-18 03:27:53,974 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_device [2021-12-18 03:27:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_device [2021-12-18 03:27:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure rb_first [2021-12-18 03:27:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_first [2021-12-18 03:27:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_vid_hdr [2021-12-18 03:27:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_vid_hdr [2021-12-18 03:27:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2021-12-18 03:27:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2021-12-18 03:27:53,975 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_lock [2021-12-18 03:27:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_lock [2021-12-18 03:27:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-18 03:27:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-18 03:27:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure rb_insert_color [2021-12-18 03:27:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_insert_color [2021-12-18 03:27:53,976 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read [2021-12-18 03:27:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read [2021-12-18 03:27:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_change_vtbl_record [2021-12-18 03:27:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_change_vtbl_record [2021-12-18 03:27:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure uif_close [2021-12-18 03:27:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure uif_close [2021-12-18 03:27:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-18 03:27:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-18 03:27:53,977 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_atomic_leb_change [2021-12-18 03:27:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_atomic_leb_change [2021-12-18 03:27:53,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 03:27:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 03:27:53,981 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-18 03:27:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-18 03:27:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_ro_mode [2021-12-18 03:27:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_ro_mode [2021-12-18 03:27:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-18 03:27:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-18 03:27:53,982 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2021-12-18 03:27:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2021-12-18 03:27:53,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 03:27:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2021-12-18 03:27:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2021-12-18 03:27:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 03:27:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2021-12-18 03:27:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2021-12-18 03:27:53,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ubi_devices_mutex [2021-12-18 03:27:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ubi_devices_mutex [2021-12-18 03:27:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-18 03:27:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-18 03:27:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure scan_all [2021-12-18 03:27:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_all [2021-12-18 03:27:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_flash [2021-12-18 03:27:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_flash [2021-12-18 03:27:53,985 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr [2021-12-18 03:27:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr [2021-12-18 03:27:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_is_fm_block [2021-12-18 03:27:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_is_fm_block [2021-12-18 03:27:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_unlock [2021-12-18 03:27:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_unlock [2021-12-18 03:27:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2021-12-18 03:27:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2021-12-18 03:27:53,986 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2021-12-18 03:27:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2021-12-18 03:27:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_sync_erase [2021-12-18 03:27:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_sync_erase [2021-12-18 03:27:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 03:27:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 03:27:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 03:27:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 03:27:53,987 INFO L130 BoogieDeclarations]: Found specification of procedure idx2vol_id [2021-12-18 03:27:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure idx2vol_id [2021-12-18 03:27:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-18 03:27:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-18 03:27:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_peb_ec_hdr [2021-12-18 03:27:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_peb_ec_hdr [2021-12-18 03:27:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vol_info [2021-12-18 03:27:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vol_info [2021-12-18 03:27:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 03:27:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 03:27:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure get_peb_for_wl [2021-12-18 03:27:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure get_peb_for_wl [2021-12-18 03:27:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-12-18 03:27:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-12-18 03:27:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-18 03:27:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-18 03:27:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure blocking_notifier_call_chain [2021-12-18 03:27:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure blocking_notifier_call_chain [2021-12-18 03:27:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure create_vtbl [2021-12-18 03:27:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure create_vtbl [2021-12-18 03:27:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2021-12-18 03:27:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2021-12-18 03:27:53,990 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-18 03:27:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-18 03:27:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-18 03:27:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-18 03:27:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 03:27:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure do_work [2021-12-18 03:27:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure do_work [2021-12-18 03:27:53,991 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 03:27:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 03:27:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_in_wl_tree [2021-12-18 03:27:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_in_wl_tree [2021-12-18 03:27:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume [2021-12-18 03:27:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume [2021-12-18 03:27:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_pattern [2021-12-18 03:27:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_pattern [2021-12-18 03:27:53,992 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2021-12-18 03:27:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2021-12-18 03:27:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_write_leb [2021-12-18 03:27:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_write_leb [2021-12-18 03:27:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-18 03:27:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-18 03:27:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-18 03:27:53,993 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-18 03:27:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 03:27:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_put_device [2021-12-18 03:27:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_put_device [2021-12-18 03:27:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure assign_aeb_to_av [2021-12-18 03:27:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assign_aeb_to_av [2021-12-18 03:27:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-18 03:27:53,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-18 03:27:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure clear_update_marker [2021-12-18 03:27:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_update_marker [2021-12-18 03:27:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-18 03:27:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-18 03:27:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure scan_peb [2021-12-18 03:27:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_peb [2021-12-18 03:27:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-18 03:27:53,995 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-18 03:27:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr___0 [2021-12-18 03:27:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr___0 [2021-12-18 03:27:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 03:27:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 03:27:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 03:27:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_self_check_all_ff [2021-12-18 03:27:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_self_check_all_ff [2021-12-18 03:27:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2021-12-18 03:27:53,996 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2021-12-18 03:27:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2021-12-18 03:27:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2021-12-18 03:27:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_close_volume [2021-12-18 03:27:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_close_volume [2021-12-18 03:27:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_peb [2021-12-18 03:27:53,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_peb [2021-12-18 03:27:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 03:27:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 03:27:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2021-12-18 03:27:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2021-12-18 03:27:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 03:27:53,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 03:27:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 03:27:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 03:27:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_wear_leveling [2021-12-18 03:27:54,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_wear_leveling [2021-12-18 03:27:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_unlock [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_unlock [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_next_sqnum [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_next_sqnum [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ubi_devices_mutex [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ubi_devices_mutex [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_ec_hdr [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_ec_hdr [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_add_entry [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_add_entry [2021-12-18 03:27:54,108 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_close [2021-12-18 03:27:54,108 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_close [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure revoke_exclusive [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure revoke_exclusive [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure return_unused_pool_pebs [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure return_unused_pool_pebs [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vtbl_record [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vtbl_record [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure erase_worker [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_worker [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_add_to_av [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_add_to_av [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2021-12-18 03:27:54,109 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2021-12-18 03:27:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_volume [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_volume [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_lookup [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_lookup [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-18 03:27:54,110 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-18 03:27:54,110 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_flush [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_flush [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_list [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_list [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_volumes [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_volumes [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure kill_volumes [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_volumes [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_is_bgt_disabled [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_is_bgt_disabled [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_notify_all [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_notify_all [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-18 03:27:54,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-18 03:27:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure scan_pool [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_pool [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure add_aeb [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure add_aeb [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure get_exclusive [2021-12-18 03:27:54,112 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exclusive [2021-12-18 03:27:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_major2num [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_major2num [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_volume_info [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_volume_info [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure tree_destroy [2021-12-18 03:27:54,113 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_destroy [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 03:27:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_ec_hdr [2021-12-18 03:27:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_ec_hdr [2021-12-18 03:27:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure find_anchor_wl_entry [2021-12-18 03:27:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure find_anchor_wl_entry [2021-12-18 03:27:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 03:27:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 03:27:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-18 03:27:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-18 03:27:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure wl_tree_add [2021-12-18 03:27:54,114 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_tree_add [2021-12-18 03:27:55,858 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 03:27:55,862 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 03:32:48,526 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 03:32:48,567 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 03:32:48,568 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 03:32:48,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:32:48 BoogieIcfgContainer [2021-12-18 03:32:48,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 03:32:48,578 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 03:32:48,578 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 03:32:48,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 03:32:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:27:44" (1/3) ... [2021-12-18 03:32:48,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6145cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:32:48, skipping insertion in model container [2021-12-18 03:32:48,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:27:51" (2/3) ... [2021-12-18 03:32:48,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6145cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:32:48, skipping insertion in model container [2021-12-18 03:32:48,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:32:48" (3/3) ... [2021-12-18 03:32:48,584 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-18 03:32:48,588 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 03:32:48,588 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 03:32:48,658 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 03:32:48,664 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 03:32:48,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 03:32:48,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 7715 states, 5028 states have (on average 1.3677406523468576) internal successors, (6877), 5277 states have internal predecessors, (6877), 2459 states have call successors, (2459), 226 states have call predecessors, (2459), 226 states have return successors, (2459), 2409 states have call predecessors, (2459), 2459 states have call successors, (2459) [2021-12-18 03:32:48,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-18 03:32:48,803 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:32:48,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:32:48,804 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:32:48,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:32:48,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1567270421, now seen corresponding path program 1 times [2021-12-18 03:32:48,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:32:48,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062617228] [2021-12-18 03:32:48,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:32:48,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:32:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:32:49,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:32:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:32:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:32:49,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:32:49,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062617228] [2021-12-18 03:32:49,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062617228] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:32:49,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:32:49,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:32:49,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424149802] [2021-12-18 03:32:49,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:32:49,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:32:49,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:32:49,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:32:49,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:32:49,935 INFO L87 Difference]: Start difference. First operand has 7715 states, 5028 states have (on average 1.3677406523468576) internal successors, (6877), 5277 states have internal predecessors, (6877), 2459 states have call successors, (2459), 226 states have call predecessors, (2459), 226 states have return successors, (2459), 2409 states have call predecessors, (2459), 2459 states have call successors, (2459) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:33:14,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-12-18 03:33:19,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:33:38,255 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:34:08,181 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:34:31,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:34:31,326 INFO L93 Difference]: Finished difference Result 19603 states and 30618 transitions. [2021-12-18 03:34:31,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:34:31,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-18 03:34:31,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:34:31,432 INFO L225 Difference]: With dead ends: 19603 [2021-12-18 03:34:31,432 INFO L226 Difference]: Without dead ends: 11885 [2021-12-18 03:34:31,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:34:31,514 INFO L933 BasicCegarLoop]: 9875 mSDtfsCounter, 15166 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 11788 mSolverCounterSat, 7953 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17077 SdHoareTripleChecker+Valid, 11399 SdHoareTripleChecker+Invalid, 19744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 7953 IncrementalHoareTripleChecker+Valid, 11788 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 99.1s IncrementalHoareTripleChecker+Time [2021-12-18 03:34:31,515 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17077 Valid, 11399 Invalid, 19744 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [7953 Valid, 11788 Invalid, 3 Unknown, 0 Unchecked, 99.1s Time] [2021-12-18 03:34:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2021-12-18 03:34:32,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 10411. [2021-12-18 03:34:32,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10411 states, 6722 states have (on average 1.3543588217792324) internal successors, (9104), 7074 states have internal predecessors, (9104), 3345 states have call successors, (3345), 345 states have call predecessors, (3345), 343 states have return successors, (3320), 3245 states have call predecessors, (3320), 3320 states have call successors, (3320) [2021-12-18 03:34:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 15769 transitions. [2021-12-18 03:34:32,636 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 15769 transitions. Word has length 12 [2021-12-18 03:34:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:34:32,637 INFO L470 AbstractCegarLoop]: Abstraction has 10411 states and 15769 transitions. [2021-12-18 03:34:32,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:34:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 15769 transitions. [2021-12-18 03:34:32,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-18 03:34:32,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:34:32,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:34:32,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 03:34:32,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:34:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:34:32,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1345700729, now seen corresponding path program 1 times [2021-12-18 03:34:32,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:34:32,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137039045] [2021-12-18 03:34:32,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:34:32,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:34:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:34:33,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:34:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:34:33,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:34:33,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:34:33,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137039045] [2021-12-18 03:34:33,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137039045] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:34:33,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:34:33,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:34:33,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080317735] [2021-12-18 03:34:33,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:34:33,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:34:33,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:34:33,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:34:33,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:34:33,286 INFO L87 Difference]: Start difference. First operand 10411 states and 15769 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:34:49,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:35:01,575 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:35:07,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:35:12,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:35:48,425 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:35:50,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:35:50,260 INFO L93 Difference]: Finished difference Result 12691 states and 19174 transitions. [2021-12-18 03:35:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:35:50,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2021-12-18 03:35:50,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:35:50,349 INFO L225 Difference]: With dead ends: 12691 [2021-12-18 03:35:50,350 INFO L226 Difference]: Without dead ends: 12687 [2021-12-18 03:35:50,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:35:50,364 INFO L933 BasicCegarLoop]: 9444 mSDtfsCounter, 13318 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 8120 mSolverCounterSat, 7097 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14645 SdHoareTripleChecker+Valid, 10046 SdHoareTripleChecker+Invalid, 15222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7097 IncrementalHoareTripleChecker+Valid, 8120 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.5s IncrementalHoareTripleChecker+Time [2021-12-18 03:35:50,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14645 Valid, 10046 Invalid, 15222 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7097 Valid, 8120 Invalid, 5 Unknown, 0 Unchecked, 75.5s Time] [2021-12-18 03:35:50,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12687 states. [2021-12-18 03:35:51,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12687 to 11998. [2021-12-18 03:35:51,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11998 states, 7739 states have (on average 1.3479777749063186) internal successors, (10432), 8157 states have internal predecessors, (10432), 3810 states have call successors, (3810), 450 states have call predecessors, (3810), 448 states have return successors, (3789), 3688 states have call predecessors, (3789), 3787 states have call successors, (3789) [2021-12-18 03:35:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 18031 transitions. [2021-12-18 03:35:51,338 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 18031 transitions. Word has length 13 [2021-12-18 03:35:51,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:35:51,339 INFO L470 AbstractCegarLoop]: Abstraction has 11998 states and 18031 transitions. [2021-12-18 03:35:51,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:35:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 18031 transitions. [2021-12-18 03:35:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-18 03:35:51,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:35:51,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:35:51,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 03:35:51,340 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:35:51,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:35:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1227997294, now seen corresponding path program 1 times [2021-12-18 03:35:51,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:35:51,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076351146] [2021-12-18 03:35:51,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:35:51,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:35:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:35:51,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:35:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:35:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:35:51,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:35:51,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076351146] [2021-12-18 03:35:51,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076351146] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:35:51,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:35:51,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:35:51,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089032594] [2021-12-18 03:35:51,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:35:51,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:35:51,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:35:51,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:35:51,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:35:51,935 INFO L87 Difference]: Start difference. First operand 11998 states and 18031 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:36:19,266 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:36:23,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:37:07,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:37:11,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:37:11,290 INFO L93 Difference]: Finished difference Result 14153 states and 21367 transitions. [2021-12-18 03:37:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:37:11,291 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-18 03:37:11,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:37:11,366 INFO L225 Difference]: With dead ends: 14153 [2021-12-18 03:37:11,366 INFO L226 Difference]: Without dead ends: 14149 [2021-12-18 03:37:11,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:37:11,377 INFO L933 BasicCegarLoop]: 9320 mSDtfsCounter, 14266 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 8920 mSolverCounterSat, 7183 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15840 SdHoareTripleChecker+Valid, 9717 SdHoareTripleChecker+Invalid, 16106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7183 IncrementalHoareTripleChecker+Valid, 8920 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.8s IncrementalHoareTripleChecker+Time [2021-12-18 03:37:11,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15840 Valid, 9717 Invalid, 16106 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7183 Valid, 8920 Invalid, 3 Unknown, 0 Unchecked, 77.8s Time] [2021-12-18 03:37:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14149 states. [2021-12-18 03:37:12,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14149 to 12796. [2021-12-18 03:37:12,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12796 states, 8256 states have (on average 1.346172480620155) internal successors, (11114), 8705 states have internal predecessors, (11114), 4028 states have call successors, (4028), 513 states have call predecessors, (4028), 511 states have return successors, (4009), 3903 states have call predecessors, (4009), 4007 states have call successors, (4009) [2021-12-18 03:37:12,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12796 states to 12796 states and 19151 transitions. [2021-12-18 03:37:12,245 INFO L78 Accepts]: Start accepts. Automaton has 12796 states and 19151 transitions. Word has length 14 [2021-12-18 03:37:12,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:37:12,246 INFO L470 AbstractCegarLoop]: Abstraction has 12796 states and 19151 transitions. [2021-12-18 03:37:12,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:37:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 12796 states and 19151 transitions. [2021-12-18 03:37:12,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-18 03:37:12,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:37:12,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:37:12,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 03:37:12,247 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:37:12,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:37:12,248 INFO L85 PathProgramCache]: Analyzing trace with hash -591737750, now seen corresponding path program 1 times [2021-12-18 03:37:12,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:37:12,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433119821] [2021-12-18 03:37:12,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:37:12,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:37:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:37:12,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:37:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:37:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:37:12,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:37:12,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433119821] [2021-12-18 03:37:12,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433119821] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:37:12,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:37:12,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:37:12,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595259078] [2021-12-18 03:37:12,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:37:12,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:37:12,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:37:12,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:37:12,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:37:12,823 INFO L87 Difference]: Start difference. First operand 12796 states and 19151 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:37:28,465 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:37:53,753 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:37:56,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:19,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:38:34,048 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:12,782 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:39:16,610 INFO L93 Difference]: Finished difference Result 18782 states and 28265 transitions. [2021-12-18 03:39:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:39:16,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-18 03:39:16,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:39:16,704 INFO L225 Difference]: With dead ends: 18782 [2021-12-18 03:39:16,705 INFO L226 Difference]: Without dead ends: 18778 [2021-12-18 03:39:16,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:39:16,717 INFO L933 BasicCegarLoop]: 10382 mSDtfsCounter, 15099 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 13115 mSolverCounterSat, 8055 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17131 SdHoareTripleChecker+Valid, 12158 SdHoareTripleChecker+Invalid, 21176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 8055 IncrementalHoareTripleChecker+Valid, 13115 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 121.7s IncrementalHoareTripleChecker+Time [2021-12-18 03:39:16,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17131 Valid, 12158 Invalid, 21176 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [8055 Valid, 13115 Invalid, 6 Unknown, 0 Unchecked, 121.7s Time] [2021-12-18 03:39:16,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18778 states. [2021-12-18 03:39:17,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18778 to 16899. [2021-12-18 03:39:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16899 states, 10857 states have (on average 1.3407018513401492) internal successors, (14556), 11454 states have internal predecessors, (14556), 5330 states have call successors, (5330), 713 states have call predecessors, (5330), 711 states have return successors, (5314), 5169 states have call predecessors, (5314), 5311 states have call successors, (5314) [2021-12-18 03:39:17,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16899 states to 16899 states and 25200 transitions. [2021-12-18 03:39:17,887 INFO L78 Accepts]: Start accepts. Automaton has 16899 states and 25200 transitions. Word has length 15 [2021-12-18 03:39:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:39:17,888 INFO L470 AbstractCegarLoop]: Abstraction has 16899 states and 25200 transitions. [2021-12-18 03:39:17,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:39:17,888 INFO L276 IsEmpty]: Start isEmpty. Operand 16899 states and 25200 transitions. [2021-12-18 03:39:17,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-18 03:39:17,890 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:39:17,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:39:17,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 03:39:17,890 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:39:17,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:39:17,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1168944399, now seen corresponding path program 1 times [2021-12-18 03:39:17,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:39:17,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556875130] [2021-12-18 03:39:17,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:39:17,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:39:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:18,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:39:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:39:18,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:39:18,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:39:18,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556875130] [2021-12-18 03:39:18,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556875130] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:39:18,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:39:18,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:39:18,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962516578] [2021-12-18 03:39:18,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:39:18,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:39:18,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:39:18,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:39:18,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:39:18,513 INFO L87 Difference]: Start difference. First operand 16899 states and 25200 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:39:48,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:55,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-18 03:39:59,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:08,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:40:11,565 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 03:41:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 03:41:04,540 INFO L93 Difference]: Finished difference Result 25483 states and 38007 transitions. [2021-12-18 03:41:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 03:41:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2021-12-18 03:41:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 03:41:04,670 INFO L225 Difference]: With dead ends: 25483 [2021-12-18 03:41:04,670 INFO L226 Difference]: Without dead ends: 25479 [2021-12-18 03:41:04,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 03:41:04,697 INFO L933 BasicCegarLoop]: 10270 mSDtfsCounter, 13267 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 11493 mSolverCounterSat, 7275 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14872 SdHoareTripleChecker+Valid, 12190 SdHoareTripleChecker+Invalid, 18772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7275 IncrementalHoareTripleChecker+Valid, 11493 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.9s IncrementalHoareTripleChecker+Time [2021-12-18 03:41:04,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14872 Valid, 12190 Invalid, 18772 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7275 Valid, 11493 Invalid, 4 Unknown, 0 Unchecked, 103.9s Time] [2021-12-18 03:41:04,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2021-12-18 03:41:05,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 23332. [2021-12-18 03:41:05,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23332 states, 14932 states have (on average 1.334047682828824) internal successors, (19920), 15788 states have internal predecessors, (19920), 7303 states have call successors, (7303), 1098 states have call predecessors, (7303), 1096 states have return successors, (7291), 7063 states have call predecessors, (7291), 7286 states have call successors, (7291) [2021-12-18 03:41:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23332 states to 23332 states and 34514 transitions. [2021-12-18 03:41:06,052 INFO L78 Accepts]: Start accepts. Automaton has 23332 states and 34514 transitions. Word has length 16 [2021-12-18 03:41:06,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 03:41:06,053 INFO L470 AbstractCegarLoop]: Abstraction has 23332 states and 34514 transitions. [2021-12-18 03:41:06,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-18 03:41:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 23332 states and 34514 transitions. [2021-12-18 03:41:06,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-18 03:41:06,056 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 03:41:06,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 03:41:06,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 03:41:06,057 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 03:41:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 03:41:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1882476467, now seen corresponding path program 1 times [2021-12-18 03:41:06,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 03:41:06,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959688223] [2021-12-18 03:41:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 03:41:06,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 03:41:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 03:41:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 03:41:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-18 03:41:06,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 03:41:06,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959688223] [2021-12-18 03:41:06,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959688223] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 03:41:06,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 03:41:06,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 03:41:06,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038779377] [2021-12-18 03:41:06,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 03:41:06,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 03:41:06,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 03:41:06,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 03:41:06,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 03:41:06,611 INFO L87 Difference]: Start difference. First operand 23332 states and 34514 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Killed by 15