./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa --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-hotfix-svcomp22-839c364 [2021-12-06 23:48:07,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:48:07,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:48:07,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:48:07,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:48:07,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:48:07,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:48:07,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:48:07,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:48:07,976 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:48:07,977 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:48:07,979 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:48:07,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:48:07,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:48:07,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:48:07,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:48:07,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:48:07,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:48:07,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:48:07,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:48:07,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:48:07,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:48:07,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:48:07,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:48:07,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:48:07,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:48:07,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:48:08,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:48:08,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:48:08,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:48:08,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:48:08,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:48:08,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:48:08,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:48:08,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:48:08,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:48:08,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:48:08,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:48:08,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:48:08,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:48:08,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:48:08,008 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 23:48:08,025 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:48:08,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:48:08,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:48:08,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:48:08,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:48:08,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:48:08,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:48:08,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:48:08,027 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:48:08,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:48:08,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:48:08,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:48:08,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:48:08,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:48:08,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:48:08,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:48:08,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:48:08,030 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ab79e6f1cd195ff89e9316632c84dfdb1ee61de295f555610ad4d3f6315c80 [2021-12-06 23:48:08,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:48:08,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:48:08,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:48:08,215 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:48:08,216 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:48:08,217 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-06 23:48:08,261 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/data/d4353274b/aaac13bc4dd24137b69facf490346390/FLAGb8cdec370 [2021-12-06 23:48:09,100 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:48:09,101 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-06 23:48:09,139 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/data/d4353274b/aaac13bc4dd24137b69facf490346390/FLAGb8cdec370 [2021-12-06 23:48:09,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/data/d4353274b/aaac13bc4dd24137b69facf490346390 [2021-12-06 23:48:09,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:48:09,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:48:09,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:48:09,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:48:09,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:48:09,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:48:09" (1/1) ... [2021-12-06 23:48:09,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c2bb3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:09, skipping insertion in model container [2021-12-06 23:48:09,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:48:09" (1/1) ... [2021-12-06 23:48:09,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:48:09,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:48:13,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2021-12-06 23:48:14,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:48:14,314 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:48:14,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i[705142,705155] [2021-12-06 23:48:14,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:48:15,112 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:48:15,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15 WrapperNode [2021-12-06 23:48:15,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:48:15,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:48:15,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:48:15,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:48:15,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:15,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:15,752 INFO L137 Inliner]: procedures = 644, calls = 13325, calls flagged for inlining = 231, calls inlined = 205, statements flattened = 26582 [2021-12-06 23:48:15,753 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:48:15,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:48:15,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:48:15,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:48:15,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:15,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:15,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:15,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:16,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:16,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:16,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:16,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:48:16,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:48:16,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:48:16,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:48:16,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (1/1) ... [2021-12-06 23:48:16,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:48:16,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:48:16,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:48:16,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3b4cdeb0-dd08-42fa-9751-36aa9e922454/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:48:16,510 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_init [2021-12-06 23:48:16,510 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_init [2021-12-06 23:48:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_ec_hdr [2021-12-06 23:48:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_ec_hdr [2021-12-06 23:48:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_unmap_leb [2021-12-06 23:48:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_unmap_leb [2021-12-06 23:48:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-06 23:48:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2021-12-06 23:48:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2021-12-06 23:48:16,511 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_create [2021-12-06 23:48:16,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_create [2021-12-06 23:48:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_resize_volume [2021-12-06 23:48:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_resize_volume [2021-12-06 23:48:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_internal_volumes [2021-12-06 23:48:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_internal_volumes [2021-12-06 23:48:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure __schedule_ubi_work [2021-12-06 23:48:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __schedule_ubi_work [2021-12-06 23:48:16,512 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_volume_notify [2021-12-06 23:48:16,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_volume_notify [2021-12-06 23:48:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 23:48:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 23:48:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_detach_mtd_dev [2021-12-06 23:48:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_detach_mtd_dev [2021-12-06 23:48:16,513 INFO L130 BoogieDeclarations]: Found specification of procedure put_mtd_device [2021-12-06 23:48:16,513 INFO L138 BoogieDeclarations]: Found implementation of procedure put_mtd_device [2021-12-06 23:48:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure erase_block [2021-12-06 23:48:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_block [2021-12-06 23:48:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_pending [2021-12-06 23:48:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_pending [2021-12-06 23:48:16,514 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-12-06 23:48:16,514 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-12-06 23:48:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2021-12-06 23:48:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2021-12-06 23:48:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2021-12-06 23:48:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2021-12-06 23:48:16,515 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_read_leb [2021-12-06 23:48:16,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_read_leb [2021-12-06 23:48:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_device_info [2021-12-06 23:48:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_device_info [2021-12-06 23:48:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_cdev_ioctl [2021-12-06 23:48:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_cdev_ioctl [2021-12-06 23:48:16,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2021-12-06 23:48:16,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ckvol_mutex_of_ubi_device [2021-12-06 23:48:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-06 23:48:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-06 23:48:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_sysfs_close [2021-12-06 23:48:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_sysfs_close [2021-12-06 23:48:16,517 INFO L130 BoogieDeclarations]: Found specification of procedure vtbl_check [2021-12-06 23:48:16,517 INFO L138 BoogieDeclarations]: Found implementation of procedure vtbl_check [2021-12-06 23:48:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_vid_hdr [2021-12-06 23:48:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_vid_hdr [2021-12-06 23:48:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_cdev_ioctl [2021-12-06 23:48:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_cdev_ioctl [2021-12-06 23:48:16,518 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-06 23:48:16,518 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-06 23:48:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_compare_lebs [2021-12-06 23:48:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_compare_lebs [2021-12-06 23:48:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_fm_peb [2021-12-06 23:48:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_fm_peb [2021-12-06 23:48:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 23:48:16,519 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 23:48:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure __init_rwsem [2021-12-06 23:48:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_rwsem [2021-12-06 23:48:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure vol_cdev_ioctl [2021-12-06 23:48:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_cdev_ioctl [2021-12-06 23:48:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_fastmap [2021-12-06 23:48:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_fastmap [2021-12-06 23:48:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure is_error_sane [2021-12-06 23:48:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure is_error_sane [2021-12-06 23:48:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_vid_hdr [2021-12-06 23:48:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_vid_hdr [2021-12-06 23:48:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vid_hdr [2021-12-06 23:48:16,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vid_hdr [2021-12-06 23:48:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure rb_next [2021-12-06 23:48:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_next [2021-12-06 23:48:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_volume [2021-12-06 23:48:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_volume [2021-12-06 23:48:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-06 23:48:16,522 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calc_data_len [2021-12-06 23:48:16,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calc_data_len [2021-12-06 23:48:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_data [2021-12-06 23:48:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_data [2021-12-06 23:48:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_close [2021-12-06 23:48:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_close [2021-12-06 23:48:16,523 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_free_vid_hdr [2021-12-06 23:48:16,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_free_vid_hdr [2021-12-06 23:48:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 23:48:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-06 23:48:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-06 23:48:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure rb_link_node [2021-12-06 23:48:16,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_link_node [2021-12-06 23:48:16,524 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_find_av [2021-12-06 23:48:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_find_av [2021-12-06 23:48:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 23:48:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 23:48:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-06 23:48:16,525 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-06 23:48:16,525 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 23:48:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 23:48:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_ubi_work [2021-12-06 23:48:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_ubi_work [2021-12-06 23:48:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase___0 [2021-12-06 23:48:16,526 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase___0 [2021-12-06 23:48:16,526 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 23:48:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 23:48:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-06 23:48:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-06 23:48:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_ec_hdr [2021-12-06 23:48:16,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_ec_hdr [2021-12-06 23:48:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 23:48:16,527 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_not_bad [2021-12-06 23:48:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_not_bad [2021-12-06 23:48:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 23:48:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 23:48:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_div_by_eb [2021-12-06 23:48:16,528 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_div_by_eb [2021-12-06 23:48:16,528 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-06 23:48:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-06 23:48:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_calculate_reserved [2021-12-06 23:48:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_calculate_reserved [2021-12-06 23:48:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_debugfs_exit_dev [2021-12-06 23:48:16,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_debugfs_exit_dev [2021-12-06 23:48:16,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 23:48:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr [2021-12-06 23:48:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr [2021-12-06 23:48:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2021-12-06 23:48:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_buf_mutex_of_ubi_device [2021-12-06 23:48:16,530 INFO L130 BoogieDeclarations]: Found specification of procedure find_mean_wl_entry [2021-12-06 23:48:16,530 INFO L138 BoogieDeclarations]: Found implementation of procedure find_mean_wl_entry [2021-12-06 23:48:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2021-12-06 23:48:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2021-12-06 23:48:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 23:48:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2021-12-06 23:48:16,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_move_mutex_of_ubi_device [2021-12-06 23:48:16,531 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-12-06 23:48:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-12-06 23:48:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 23:48:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 23:48:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_data [2021-12-06 23:48:16,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_data [2021-12-06 23:48:16,532 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_add [2021-12-06 23:48:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_add [2021-12-06 23:48:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-12-06 23:48:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-12-06 23:48:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-12-06 23:48:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-12-06 23:48:16,533 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_write [2021-12-06 23:48:16,533 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_write [2021-12-06 23:48:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 23:48:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 23:48:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-06 23:48:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-06 23:48:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2021-12-06 23:48:16,534 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2021-12-06 23:48:16,534 INFO L130 BoogieDeclarations]: Found specification of procedure new_fm_vhdr [2021-12-06 23:48:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure new_fm_vhdr [2021-12-06 23:48:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure yield [2021-12-06 23:48:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure yield [2021-12-06 23:48:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-12-06 23:48:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-12-06 23:48:16,535 INFO L130 BoogieDeclarations]: Found specification of procedure find_wl_entry [2021-12-06 23:48:16,535 INFO L138 BoogieDeclarations]: Found implementation of procedure find_wl_entry [2021-12-06 23:48:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_io [2021-12-06 23:48:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_io [2021-12-06 23:48:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure __vmalloc [2021-12-06 23:48:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __vmalloc [2021-12-06 23:48:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_is_bad [2021-12-06 23:48:16,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_is_bad [2021-12-06 23:48:16,536 INFO L130 BoogieDeclarations]: Found specification of procedure vol_id2idx [2021-12-06 23:48:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure vol_id2idx [2021-12-06 23:48:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2021-12-06 23:48:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_mutex_of_ubi_device [2021-12-06 23:48:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-06 23:48:16,537 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-06 23:48:16,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 23:48:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_update_reserved [2021-12-06 23:48:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_update_reserved [2021-12-06 23:48:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_fm_peb [2021-12-06 23:48:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_fm_peb [2021-12-06 23:48:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure in_wl_tree [2021-12-06 23:48:16,538 INFO L138 BoogieDeclarations]: Found implementation of procedure in_wl_tree [2021-12-06 23:48:16,538 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_ai [2021-12-06 23:48:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_ai [2021-12-06 23:48:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-06 23:48:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-06 23:48:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2021-12-06 23:48:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_move_mutex_of_ubi_device [2021-12-06 23:48:16,539 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_get_peb [2021-12-06 23:48:16,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_get_peb [2021-12-06 23:48:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-06 23:48:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-06 23:48:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:48:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_ai [2021-12-06 23:48:16,540 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_ai [2021-12-06 23:48:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 23:48:16,540 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 23:48:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_aeb [2021-12-06 23:48:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_aeb [2021-12-06 23:48:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_av [2021-12-06 23:48:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_av [2021-12-06 23:48:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write_leb [2021-12-06 23:48:16,541 INFO L138 BoogieDeclarations]: Found implementation of procedure write_leb [2021-12-06 23:48:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure rb_erase [2021-12-06 23:48:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_erase [2021-12-06 23:48:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2021-12-06 23:48:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2021-12-06 23:48:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_erase [2021-12-06 23:48:16,542 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_erase [2021-12-06 23:48:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure prot_queue_del [2021-12-06 23:48:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure prot_queue_del [2021-12-06 23:48:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure validate_ec_hdr [2021-12-06 23:48:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_ec_hdr [2021-12-06 23:48:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_compat [2021-12-06 23:48:16,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_compat [2021-12-06 23:48:16,543 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_chk_gen [2021-12-06 23:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_chk_gen [2021-12-06 23:48:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_av [2021-12-06 23:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_av [2021-12-06 23:48:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-06 23:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-06 23:48:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_get_device [2021-12-06 23:48:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_get_device [2021-12-06 23:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure rb_first [2021-12-06 23:48:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_first [2021-12-06 23:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_vid_hdr [2021-12-06 23:48:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_vid_hdr [2021-12-06 23:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure device_unregister [2021-12-06 23:48:16,545 INFO L138 BoogieDeclarations]: Found implementation of procedure device_unregister [2021-12-06 23:48:16,545 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_lock [2021-12-06 23:48:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_lock [2021-12-06 23:48:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-06 23:48:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-06 23:48:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure rb_insert_color [2021-12-06 23:48:16,546 INFO L138 BoogieDeclarations]: Found implementation of procedure rb_insert_color [2021-12-06 23:48:16,546 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read [2021-12-06 23:48:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read [2021-12-06 23:48:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_change_vtbl_record [2021-12-06 23:48:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_change_vtbl_record [2021-12-06 23:48:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure uif_close [2021-12-06 23:48:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure uif_close [2021-12-06 23:48:16,547 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-06 23:48:16,547 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-06 23:48:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_atomic_leb_change [2021-12-06 23:48:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_atomic_leb_change [2021-12-06 23:48:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:48:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:48:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 23:48:16,548 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 23:48:16,548 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_ro_mode [2021-12-06 23:48:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_ro_mode [2021-12-06 23:48:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-06 23:48:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-06 23:48:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2021-12-06 23:48:16,549 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2021-12-06 23:48:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 23:48:16,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2021-12-06 23:48:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_fm_mutex_of_ubi_device [2021-12-06 23:48:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 23:48:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2021-12-06 23:48:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_buf_mutex_of_ubi_device [2021-12-06 23:48:16,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ubi_devices_mutex [2021-12-06 23:48:16,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ubi_devices_mutex [2021-12-06 23:48:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 23:48:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 23:48:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure scan_all [2021-12-06 23:48:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_all [2021-12-06 23:48:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_flash [2021-12-06 23:48:16,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_flash [2021-12-06 23:48:16,551 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_zalloc_vid_hdr [2021-12-06 23:48:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_zalloc_vid_hdr [2021-12-06 23:48:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_is_fm_block [2021-12-06 23:48:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_is_fm_block [2021-12-06 23:48:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure leb_write_unlock [2021-12-06 23:48:16,552 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_write_unlock [2021-12-06 23:48:16,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2021-12-06 23:48:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_mutex_of_ubi_device [2021-12-06 23:48:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure device_register [2021-12-06 23:48:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure device_register [2021-12-06 23:48:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_sync_erase [2021-12-06 23:48:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_sync_erase [2021-12-06 23:48:16,553 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 23:48:16,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 23:48:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 23:48:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 23:48:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure idx2vol_id [2021-12-06 23:48:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure idx2vol_id [2021-12-06 23:48:16,554 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-06 23:48:16,554 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-06 23:48:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_peb_ec_hdr [2021-12-06 23:48:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_peb_ec_hdr [2021-12-06 23:48:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vol_info [2021-12-06 23:48:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vol_info [2021-12-06 23:48:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 23:48:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 23:48:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure get_peb_for_wl [2021-12-06 23:48:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure get_peb_for_wl [2021-12-06 23:48:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-12-06 23:48:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-12-06 23:48:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 23:48:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 23:48:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure blocking_notifier_call_chain [2021-12-06 23:48:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure blocking_notifier_call_chain [2021-12-06 23:48:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure create_vtbl [2021-12-06 23:48:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure create_vtbl [2021-12-06 23:48:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure prandom_u32 [2021-12-06 23:48:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure prandom_u32 [2021-12-06 23:48:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-06 23:48:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-06 23:48:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-06 23:48:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-06 23:48:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 23:48:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure do_work [2021-12-06 23:48:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure do_work [2021-12-06 23:48:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 23:48:16,564 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 23:48:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_in_wl_tree [2021-12-06 23:48:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_in_wl_tree [2021-12-06 23:48:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_open_volume [2021-12-06 23:48:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_open_volume [2021-12-06 23:48:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_check_pattern [2021-12-06 23:48:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_check_pattern [2021-12-06 23:48:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_bitflip [2021-12-06 23:48:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_bitflip [2021-12-06 23:48:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_eba_write_leb [2021-12-06 23:48:16,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_eba_write_leb [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-06 23:48:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-06 23:48:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_put_device [2021-12-06 23:48:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_put_device [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure assign_aeb_to_av [2021-12-06 23:48:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assign_aeb_to_av [2021-12-06 23:48:16,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-06 23:48:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure clear_update_marker [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_update_marker [2021-12-06 23:48:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-06 23:48:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure scan_peb [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_peb [2021-12-06 23:48:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-06 23:48:16,567 INFO L130 BoogieDeclarations]: Found specification of procedure validate_vid_hdr___0 [2021-12-06 23:48:16,567 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_vid_hdr___0 [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-06 23:48:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_self_check_all_ff [2021-12-06 23:48:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_self_check_all_ff [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure put_device [2021-12-06 23:48:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure put_device [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_is_eccerr [2021-12-06 23:48:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_is_eccerr [2021-12-06 23:48:16,568 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_close_volume [2021-12-06 23:48:16,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_close_volume [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_put_peb [2021-12-06 23:48:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_put_peb [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 23:48:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2021-12-06 23:48:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 23:48:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-06 23:48:16,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-06 23:48:16,569 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_wear_leveling [2021-12-06 23:48:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_wear_leveling [2021-12-06 23:48:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure leb_read_unlock [2021-12-06 23:48:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure leb_read_unlock [2021-12-06 23:48:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_next_sqnum [2021-12-06 23:48:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_next_sqnum [2021-12-06 23:48:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ubi_devices_mutex [2021-12-06 23:48:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ubi_devices_mutex [2021-12-06 23:48:16,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-06 23:48:16,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-06 23:48:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_read_ec_hdr [2021-12-06 23:48:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_read_ec_hdr [2021-12-06 23:48:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_add_entry [2021-12-06 23:48:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_add_entry [2021-12-06 23:48:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure volume_sysfs_close [2021-12-06 23:48:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure volume_sysfs_close [2021-12-06 23:48:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure revoke_exclusive [2021-12-06 23:48:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure revoke_exclusive [2021-12-06 23:48:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure return_unused_pool_pebs [2021-12-06 23:48:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure return_unused_pool_pebs [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dump_vtbl_record [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dump_vtbl_record [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure erase_worker [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure erase_worker [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure do_sync_erase [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure do_sync_erase [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_add_to_av [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_add_to_av [2021-12-06 23:48:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure get_device [2021-12-06 23:48:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2021-12-06 23:48:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 23:48:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-12-06 23:48:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-12-06 23:48:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_remove_volume [2021-12-06 23:48:16,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_remove_volume [2021-12-06 23:48:16,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 23:48:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ltree_lookup [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ltree_lookup [2021-12-06 23:48:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_destroy [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_destroy [2021-12-06 23:48:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-06 23:48:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 23:48:16,574 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_wl_flush [2021-12-06 23:48:16,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_wl_flush [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure add_to_list [2021-12-06 23:48:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure add_to_list [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure self_check_volumes [2021-12-06 23:48:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure self_check_volumes [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure kill_volumes [2021-12-06 23:48:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_volumes [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_dbg_is_bgt_disabled [2021-12-06 23:48:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_dbg_is_bgt_disabled [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_notify_all [2021-12-06 23:48:16,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_notify_all [2021-12-06 23:48:16,575 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2021-12-06 23:48:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write [2021-12-06 23:48:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure imajor [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure imajor [2021-12-06 23:48:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure scan_pool [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_pool [2021-12-06 23:48:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 23:48:16,576 INFO L130 BoogieDeclarations]: Found specification of procedure add_aeb [2021-12-06 23:48:16,576 INFO L138 BoogieDeclarations]: Found implementation of procedure add_aeb [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure mtd_read [2021-12-06 23:48:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mtd_read [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure get_exclusive [2021-12-06 23:48:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure get_exclusive [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_major2num [2021-12-06 23:48:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_major2num [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_do_get_volume_info [2021-12-06 23:48:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_do_get_volume_info [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2021-12-06 23:48:16,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_fm_mutex_of_ubi_device [2021-12-06 23:48:16,577 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_free [2021-12-06 23:48:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_free [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 23:48:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure tree_destroy [2021-12-06 23:48:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure tree_destroy [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ubi_io_write_ec_hdr [2021-12-06 23:48:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ubi_io_write_ec_hdr [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure find_anchor_wl_entry [2021-12-06 23:48:16,578 INFO L138 BoogieDeclarations]: Found implementation of procedure find_anchor_wl_entry [2021-12-06 23:48:16,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-06 23:48:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-06 23:48:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-06 23:48:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-06 23:48:16,579 INFO L130 BoogieDeclarations]: Found specification of procedure wl_tree_add [2021-12-06 23:48:16,579 INFO L138 BoogieDeclarations]: Found implementation of procedure wl_tree_add [2021-12-06 23:48:17,685 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:48:17,688 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:53:50,584 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:53:50,615 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:53:50,616 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 23:53:50,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:53:50 BoogieIcfgContainer [2021-12-06 23:53:50,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:53:50,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:53:50,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:53:50,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:53:50,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:48:09" (1/3) ... [2021-12-06 23:53:50,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47633f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:53:50, skipping insertion in model container [2021-12-06 23:53:50,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:48:15" (2/3) ... [2021-12-06 23:53:50,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47633f66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:53:50, skipping insertion in model container [2021-12-06 23:53:50,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:53:50" (3/3) ... [2021-12-06 23:53:50,629 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--mtd--ubi--ubi.ko-ldv_main4.cil.out.i [2021-12-06 23:53:50,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:53:50,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:53:50,693 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:53:50,697 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 [2021-12-06 23:53:50,697 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:53:50,809 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) [2021-12-06 23:53:50,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-06 23:53:50,812 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:53:50,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:53:50,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:53:50,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:53:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1567270421, now seen corresponding path program 1 times [2021-12-06 23:53:50,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:53:50,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349779462] [2021-12-06 23:53:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:53:50,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:53:51,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:53:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:53:51,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:53:51,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:53:51,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349779462] [2021-12-06 23:53:51,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349779462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:53:51,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:53:51,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:53:51,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605013662] [2021-12-06 23:53:51,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:53:51,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:53:51,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:53:51,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:53:51,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:53:51,628 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) [2021-12-06 23:54:14,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:21,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:54:52,541 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 23:55:12,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:55:16,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:55:16,413 INFO L93 Difference]: Finished difference Result 19603 states and 30618 transitions. [2021-12-06 23:55:16,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:55:16,416 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 [2021-12-06 23:55:16,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:55:16,520 INFO L225 Difference]: With dead ends: 19603 [2021-12-06 23:55:16,520 INFO L226 Difference]: Without dead ends: 11885 [2021-12-06 23:55:16,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:55:16,591 INFO L933 BasicCegarLoop]: 9885 mSDtfsCounter, 15160 mSDsluCounter, 1524 mSDsCounter, 0 mSdLazyCounter, 11789 mSolverCounterSat, 7944 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17071 SdHoareTripleChecker+Valid, 11409 SdHoareTripleChecker+Invalid, 19736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7944 IncrementalHoareTripleChecker+Valid, 11789 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.1s IncrementalHoareTripleChecker+Time [2021-12-06 23:55:16,592 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17071 Valid, 11409 Invalid, 19736 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7944 Valid, 11789 Invalid, 3 Unknown, 0 Unchecked, 83.1s Time] [2021-12-06 23:55:16,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11885 states. [2021-12-06 23:55:17,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11885 to 10411. [2021-12-06 23:55:17,444 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) [2021-12-06 23:55:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 15769 transitions. [2021-12-06 23:55:17,518 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 15769 transitions. Word has length 12 [2021-12-06 23:55:17,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:55:17,518 INFO L470 AbstractCegarLoop]: Abstraction has 10411 states and 15769 transitions. [2021-12-06 23:55:17,518 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) [2021-12-06 23:55:17,518 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 15769 transitions. [2021-12-06 23:55:17,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-06 23:55:17,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:55:17,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:55:17,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:55:17,519 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:55:17,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:55:17,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1345700729, now seen corresponding path program 1 times [2021-12-06 23:55:17,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:55:17,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499586468] [2021-12-06 23:55:17,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:55:17,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:55:17,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:55:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:55:18,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:55:18,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:55:18,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:55:18,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499586468] [2021-12-06 23:55:18,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499586468] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:55:18,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:55:18,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:55:18,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965884385] [2021-12-06 23:55:18,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:55:18,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:55:18,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:55:18,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:55:18,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:55:18,113 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) [2021-12-06 23:55:31,853 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 23:55:41,740 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:55:48,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:56:23,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:56:24,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:56:24,775 INFO L93 Difference]: Finished difference Result 12691 states and 19174 transitions. [2021-12-06 23:56:24,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:56:24,776 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 [2021-12-06 23:56:24,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:56:24,856 INFO L225 Difference]: With dead ends: 12691 [2021-12-06 23:56:24,856 INFO L226 Difference]: Without dead ends: 12687 [2021-12-06 23:56:24,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:56:24,864 INFO L933 BasicCegarLoop]: 9455 mSDtfsCounter, 13309 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 8120 mSolverCounterSat, 7093 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14636 SdHoareTripleChecker+Valid, 10057 SdHoareTripleChecker+Invalid, 15217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7093 IncrementalHoareTripleChecker+Valid, 8120 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.5s IncrementalHoareTripleChecker+Time [2021-12-06 23:56:24,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14636 Valid, 10057 Invalid, 15217 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7093 Valid, 8120 Invalid, 4 Unknown, 0 Unchecked, 65.5s Time] [2021-12-06 23:56:24,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12687 states. [2021-12-06 23:56:25,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12687 to 11998. [2021-12-06 23:56:25,559 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) [2021-12-06 23:56:25,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11998 states to 11998 states and 18031 transitions. [2021-12-06 23:56:25,656 INFO L78 Accepts]: Start accepts. Automaton has 11998 states and 18031 transitions. Word has length 13 [2021-12-06 23:56:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:56:25,657 INFO L470 AbstractCegarLoop]: Abstraction has 11998 states and 18031 transitions. [2021-12-06 23:56:25,657 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) [2021-12-06 23:56:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 11998 states and 18031 transitions. [2021-12-06 23:56:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-06 23:56:25,657 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:56:25,657 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:56:25,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:56:25,658 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:56:25,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:56:25,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1227997294, now seen corresponding path program 1 times [2021-12-06 23:56:25,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:56:25,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107037492] [2021-12-06 23:56:25,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:56:25,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:56:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:56:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:56:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:56:26,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:56:26,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107037492] [2021-12-06 23:56:26,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107037492] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:56:26,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:56:26,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:56:26,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976562547] [2021-12-06 23:56:26,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:56:26,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:56:26,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:56:26,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:56:26,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:56:26,137 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) [2021-12-06 23:56:51,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-12-06 23:56:57,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:57:37,888 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:57:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:57:41,057 INFO L93 Difference]: Finished difference Result 14153 states and 21367 transitions. [2021-12-06 23:57:41,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:57:41,058 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 [2021-12-06 23:57:41,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:57:41,125 INFO L225 Difference]: With dead ends: 14153 [2021-12-06 23:57:41,125 INFO L226 Difference]: Without dead ends: 14149 [2021-12-06 23:57:41,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:57:41,134 INFO L933 BasicCegarLoop]: 9353 mSDtfsCounter, 14242 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 8922 mSolverCounterSat, 7164 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15816 SdHoareTripleChecker+Valid, 9750 SdHoareTripleChecker+Invalid, 16088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7164 IncrementalHoareTripleChecker+Valid, 8922 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.6s IncrementalHoareTripleChecker+Time [2021-12-06 23:57:41,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15816 Valid, 9750 Invalid, 16088 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7164 Valid, 8922 Invalid, 2 Unknown, 0 Unchecked, 73.6s Time] [2021-12-06 23:57:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14149 states. [2021-12-06 23:57:41,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14149 to 12796. [2021-12-06 23:57:41,857 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) [2021-12-06 23:57:41,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12796 states to 12796 states and 19151 transitions. [2021-12-06 23:57:41,912 INFO L78 Accepts]: Start accepts. Automaton has 12796 states and 19151 transitions. Word has length 14 [2021-12-06 23:57:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:57:41,912 INFO L470 AbstractCegarLoop]: Abstraction has 12796 states and 19151 transitions. [2021-12-06 23:57:41,912 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) [2021-12-06 23:57:41,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12796 states and 19151 transitions. [2021-12-06 23:57:41,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-06 23:57:41,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:57:41,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:57:41,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:57:41,914 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:57:41,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:57:41,914 INFO L85 PathProgramCache]: Analyzing trace with hash -591737750, now seen corresponding path program 1 times [2021-12-06 23:57:41,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:57:41,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846970226] [2021-12-06 23:57:41,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:57:41,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:57:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:42,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:57:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:57:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:57:42,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:57:42,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846970226] [2021-12-06 23:57:42,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846970226] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:57:42,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:57:42,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:57:42,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020825452] [2021-12-06 23:57:42,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:57:42,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:57:42,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:57:42,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:57:42,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:57:42,325 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) [2021-12-06 23:57:57,174 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:58:16,301 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-12-06 23:58:22,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:58:25,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:58:35,324 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:58:59,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-06 23:59:32,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 23:59:36,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:59:36,897 INFO L93 Difference]: Finished difference Result 18782 states and 28265 transitions. [2021-12-06 23:59:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:59:36,899 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 [2021-12-06 23:59:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:59:36,977 INFO L225 Difference]: With dead ends: 18782 [2021-12-06 23:59:36,977 INFO L226 Difference]: Without dead ends: 18778 [2021-12-06 23:59:36,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:59:36,990 INFO L933 BasicCegarLoop]: 10394 mSDtfsCounter, 15091 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 13116 mSolverCounterSat, 8051 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17123 SdHoareTripleChecker+Valid, 12172 SdHoareTripleChecker+Invalid, 21173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8051 IncrementalHoareTripleChecker+Valid, 13116 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 112.7s IncrementalHoareTripleChecker+Time [2021-12-06 23:59:36,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17123 Valid, 12172 Invalid, 21173 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8051 Valid, 13116 Invalid, 6 Unknown, 0 Unchecked, 112.7s Time] [2021-12-06 23:59:37,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18778 states. [2021-12-06 23:59:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18778 to 16899. [2021-12-06 23:59:37,928 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) [2021-12-06 23:59:37,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16899 states to 16899 states and 25200 transitions. [2021-12-06 23:59:37,998 INFO L78 Accepts]: Start accepts. Automaton has 16899 states and 25200 transitions. Word has length 15 [2021-12-06 23:59:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:59:37,999 INFO L470 AbstractCegarLoop]: Abstraction has 16899 states and 25200 transitions. [2021-12-06 23:59:37,999 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) [2021-12-06 23:59:37,999 INFO L276 IsEmpty]: Start isEmpty. Operand 16899 states and 25200 transitions. [2021-12-06 23:59:37,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-12-06 23:59:37,999 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:59:37,999 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:59:38,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:59:38,000 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:59:38,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:59:38,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1168944399, now seen corresponding path program 1 times [2021-12-06 23:59:38,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:59:38,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426026545] [2021-12-06 23:59:38,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:59:38,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:59:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 23:59:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:59:38,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:59:38,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:59:38,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426026545] [2021-12-06 23:59:38,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426026545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:59:38,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:59:38,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 23:59:38,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017983580] [2021-12-06 23:59:38,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:59:38,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 23:59:38,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:59:38,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 23:59:38,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 23:59:38,398 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) [2021-12-07 00:00:06,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2021-12-07 00:00:13,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:16,340 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:00:25,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 00:01:10,983 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 [] [2021-12-07 00:01:16,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 00:01:16,593 INFO L93 Difference]: Finished difference Result 25483 states and 38007 transitions. [2021-12-07 00:01:16,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 00:01:16,594 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 [2021-12-07 00:01:16,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 00:01:16,686 INFO L225 Difference]: With dead ends: 25483 [2021-12-07 00:01:16,686 INFO L226 Difference]: Without dead ends: 25479 [2021-12-07 00:01:16,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 00:01:16,701 INFO L933 BasicCegarLoop]: 10265 mSDtfsCounter, 13270 mSDsluCounter, 1920 mSDsCounter, 0 mSdLazyCounter, 11493 mSolverCounterSat, 7276 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 86.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14876 SdHoareTripleChecker+Valid, 12185 SdHoareTripleChecker+Invalid, 18773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7276 IncrementalHoareTripleChecker+Valid, 11493 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 96.2s IncrementalHoareTripleChecker+Time [2021-12-07 00:01:16,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14876 Valid, 12185 Invalid, 18773 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7276 Valid, 11493 Invalid, 4 Unknown, 0 Unchecked, 96.2s Time] [2021-12-07 00:01:16,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2021-12-07 00:01:17,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 23332. [2021-12-07 00:01:17,847 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) [2021-12-07 00:01:17,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23332 states to 23332 states and 34514 transitions. [2021-12-07 00:01:17,942 INFO L78 Accepts]: Start accepts. Automaton has 23332 states and 34514 transitions. Word has length 16 [2021-12-07 00:01:17,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 00:01:17,942 INFO L470 AbstractCegarLoop]: Abstraction has 23332 states and 34514 transitions. [2021-12-07 00:01:17,942 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) [2021-12-07 00:01:17,942 INFO L276 IsEmpty]: Start isEmpty. Operand 23332 states and 34514 transitions. [2021-12-07 00:01:17,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-07 00:01:17,943 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 00:01:17,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 00:01:17,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-07 00:01:17,943 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 00:01:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 00:01:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1882476467, now seen corresponding path program 1 times [2021-12-07 00:01:17,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 00:01:17,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77703481] [2021-12-07 00:01:17,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 00:01:17,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 00:01:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:18,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-07 00:01:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 00:01:18,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 00:01:18,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 00:01:18,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77703481] [2021-12-07 00:01:18,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77703481] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 00:01:18,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 00:01:18,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 00:01:18,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089216445] [2021-12-07 00:01:18,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 00:01:18,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 00:01:18,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 00:01:18,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 00:01:18,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 00:01:18,331 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)