./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:49:32,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:49:32,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:49:32,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:49:32,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:49:32,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:49:32,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:49:32,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:49:32,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:49:32,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:49:32,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:49:32,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:49:32,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:49:32,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:49:32,124 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:49:32,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:49:32,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:49:32,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:49:32,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:49:32,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:49:32,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:49:32,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:49:32,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:49:32,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:49:32,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:49:32,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:49:32,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:49:32,160 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:49:32,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:49:32,162 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:49:32,162 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:49:32,163 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:49:32,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:49:32,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:49:32,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:49:32,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:49:32,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:49:32,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:49:32,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:49:32,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:49:32,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:49:32,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:49:32,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:49:32,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:49:32,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:49:32,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:49:32,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:49:32,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:49:32,221 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:49:32,221 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:49:32,221 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:49:32,221 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:49:32,222 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:49:32,223 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:49:32,223 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:49:32,223 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:49:32,223 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:49:32,224 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:49:32,224 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:49:32,224 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:49:32,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:49:32,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:49:32,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:49:32,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:49:32,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:49:32,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:49:32,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:49:32,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:49:32,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:49:32,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:49:32,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:49:32,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:32,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:49:32,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:49:32,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:49:32,230 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:49:32,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:49:32,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:49:32,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:49:32,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:49:32,231 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 [2021-11-25 17:49:32,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:49:32,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:49:32,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:49:32,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:49:32,602 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:49:32,603 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-25 17:49:32,663 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/data/ffd12240b/3baa23384006456c91dd6be740b65f58/FLAG57625a616 [2021-11-25 17:49:33,619 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:49:33,620 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-25 17:49:33,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/data/ffd12240b/3baa23384006456c91dd6be740b65f58/FLAG57625a616 [2021-11-25 17:49:33,990 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/data/ffd12240b/3baa23384006456c91dd6be740b65f58 [2021-11-25 17:49:33,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:49:33,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:49:33,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:33,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:49:33,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:49:34,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:33" (1/1) ... [2021-11-25 17:49:34,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea837bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:34, skipping insertion in model container [2021-11-25 17:49:34,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:49:33" (1/1) ... [2021-11-25 17:49:34,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:49:34,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:49:38,519 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2021-11-25 17:49:38,522 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2021-11-25 17:49:38,523 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2021-11-25 17:49:38,523 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2021-11-25 17:49:38,524 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2021-11-25 17:49:38,524 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2021-11-25 17:49:38,525 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2021-11-25 17:49:38,525 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2021-11-25 17:49:38,526 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2021-11-25 17:49:38,526 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2021-11-25 17:49:38,527 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2021-11-25 17:49:38,527 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2021-11-25 17:49:38,527 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2021-11-25 17:49:38,528 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2021-11-25 17:49:38,528 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2021-11-25 17:49:38,529 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2021-11-25 17:49:38,529 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2021-11-25 17:49:38,530 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2021-11-25 17:49:38,530 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2021-11-25 17:49:38,531 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2021-11-25 17:49:38,531 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2021-11-25 17:49:38,532 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2021-11-25 17:49:38,532 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2021-11-25 17:49:38,533 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2021-11-25 17:49:38,534 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2021-11-25 17:49:38,535 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2021-11-25 17:49:38,535 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2021-11-25 17:49:38,536 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2021-11-25 17:49:38,537 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2021-11-25 17:49:38,539 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2021-11-25 17:49:38,539 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2021-11-25 17:49:38,540 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2021-11-25 17:49:38,540 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2021-11-25 17:49:38,540 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2021-11-25 17:49:38,541 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2021-11-25 17:49:38,541 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2021-11-25 17:49:38,542 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2021-11-25 17:49:38,543 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2021-11-25 17:49:38,543 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2021-11-25 17:49:38,543 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2021-11-25 17:49:38,544 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2021-11-25 17:49:38,544 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2021-11-25 17:49:38,545 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2021-11-25 17:49:38,545 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2021-11-25 17:49:38,546 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2021-11-25 17:49:38,546 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2021-11-25 17:49:38,546 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2021-11-25 17:49:38,548 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2021-11-25 17:49:38,548 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2021-11-25 17:49:38,549 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2021-11-25 17:49:38,549 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2021-11-25 17:49:38,549 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2021-11-25 17:49:38,550 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2021-11-25 17:49:38,550 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2021-11-25 17:49:38,551 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2021-11-25 17:49:38,551 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2021-11-25 17:49:38,552 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2021-11-25 17:49:38,552 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2021-11-25 17:49:38,553 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2021-11-25 17:49:38,553 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2021-11-25 17:49:38,553 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2021-11-25 17:49:38,554 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2021-11-25 17:49:38,555 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2021-11-25 17:49:38,555 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2021-11-25 17:49:38,556 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2021-11-25 17:49:38,556 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2021-11-25 17:49:38,557 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2021-11-25 17:49:38,557 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2021-11-25 17:49:38,557 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2021-11-25 17:49:38,558 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2021-11-25 17:49:38,558 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2021-11-25 17:49:38,559 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2021-11-25 17:49:38,560 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2021-11-25 17:49:38,560 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2021-11-25 17:49:38,561 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2021-11-25 17:49:38,561 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2021-11-25 17:49:38,563 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2021-11-25 17:49:38,563 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2021-11-25 17:49:38,564 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2021-11-25 17:49:38,564 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2021-11-25 17:49:38,565 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2021-11-25 17:49:38,565 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2021-11-25 17:49:38,566 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2021-11-25 17:49:38,566 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2021-11-25 17:49:38,567 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2021-11-25 17:49:38,568 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2021-11-25 17:49:38,568 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2021-11-25 17:49:38,569 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2021-11-25 17:49:38,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:38,637 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:49:39,064 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2021-11-25 17:49:39,065 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2021-11-25 17:49:39,069 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2021-11-25 17:49:39,070 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2021-11-25 17:49:39,070 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2021-11-25 17:49:39,071 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2021-11-25 17:49:39,071 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2021-11-25 17:49:39,072 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2021-11-25 17:49:39,072 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2021-11-25 17:49:39,072 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2021-11-25 17:49:39,073 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2021-11-25 17:49:39,074 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2021-11-25 17:49:39,074 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2021-11-25 17:49:39,075 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2021-11-25 17:49:39,075 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2021-11-25 17:49:39,076 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2021-11-25 17:49:39,076 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2021-11-25 17:49:39,076 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2021-11-25 17:49:39,077 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2021-11-25 17:49:39,077 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2021-11-25 17:49:39,078 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2021-11-25 17:49:39,078 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2021-11-25 17:49:39,078 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2021-11-25 17:49:39,080 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2021-11-25 17:49:39,080 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2021-11-25 17:49:39,080 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2021-11-25 17:49:39,081 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2021-11-25 17:49:39,082 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2021-11-25 17:49:39,082 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2021-11-25 17:49:39,083 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2021-11-25 17:49:39,084 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2021-11-25 17:49:39,084 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2021-11-25 17:49:39,085 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2021-11-25 17:49:39,086 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2021-11-25 17:49:39,086 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2021-11-25 17:49:39,087 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2021-11-25 17:49:39,087 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2021-11-25 17:49:39,092 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2021-11-25 17:49:39,093 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2021-11-25 17:49:39,093 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2021-11-25 17:49:39,095 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2021-11-25 17:49:39,095 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2021-11-25 17:49:39,096 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2021-11-25 17:49:39,096 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2021-11-25 17:49:39,097 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2021-11-25 17:49:39,097 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2021-11-25 17:49:39,097 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2021-11-25 17:49:39,099 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2021-11-25 17:49:39,099 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2021-11-25 17:49:39,100 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2021-11-25 17:49:39,100 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2021-11-25 17:49:39,100 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2021-11-25 17:49:39,101 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2021-11-25 17:49:39,101 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2021-11-25 17:49:39,102 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2021-11-25 17:49:39,103 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2021-11-25 17:49:39,106 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2021-11-25 17:49:39,106 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2021-11-25 17:49:39,107 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2021-11-25 17:49:39,107 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2021-11-25 17:49:39,108 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2021-11-25 17:49:39,109 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2021-11-25 17:49:39,109 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2021-11-25 17:49:39,110 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2021-11-25 17:49:39,110 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2021-11-25 17:49:39,120 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2021-11-25 17:49:39,123 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2021-11-25 17:49:39,123 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2021-11-25 17:49:39,124 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2021-11-25 17:49:39,125 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2021-11-25 17:49:39,125 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2021-11-25 17:49:39,126 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2021-11-25 17:49:39,126 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2021-11-25 17:49:39,126 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2021-11-25 17:49:39,127 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2021-11-25 17:49:39,127 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2021-11-25 17:49:39,127 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2021-11-25 17:49:39,128 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2021-11-25 17:49:39,130 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2021-11-25 17:49:39,130 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2021-11-25 17:49:39,131 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2021-11-25 17:49:39,132 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2021-11-25 17:49:39,132 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2021-11-25 17:49:39,133 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2021-11-25 17:49:39,133 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2021-11-25 17:49:39,134 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2021-11-25 17:49:39,134 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2021-11-25 17:49:39,134 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_accb87cb-4819-4de8-a6e7-41bf9afa51ce/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2021-11-25 17:49:39,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:49:39,469 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:49:39,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39 WrapperNode [2021-11-25 17:49:39,470 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:49:39,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:39,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:49:39,471 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:49:39,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:39,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:39,855 INFO L137 Inliner]: procedures = 642, calls = 3004, calls flagged for inlining = 308, calls inlined = 202, statements flattened = 4626 [2021-11-25 17:49:39,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:49:39,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:49:39,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:49:39,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:49:39,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:39,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:39,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:39,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:40,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:40,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:40,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:40,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:49:40,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:49:40,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:49:40,126 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:49:40,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (1/1) ... [2021-11-25 17:49:40,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:49:40,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:49:40,159 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:49:40,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:49:40,203 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_prepare [2021-11-25 17:49:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_prepare [2021-11-25 17:49:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 17:49:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 17:49:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:49:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:49:40,204 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writeb [2021-11-25 17:49:40,204 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writeb [2021-11-25 17:49:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 17:49:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 17:49:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:49:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:49:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writew [2021-11-25 17:49:40,205 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writew [2021-11-25 17:49:40,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 17:49:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 17:49:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_ecc_init [2021-11-25 17:49:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_ecc_init [2021-11-25 17:49:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 17:49:40,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 17:49:40,206 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2021-11-25 17:49:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2021-11-25 17:49:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 17:49:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 17:49:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_pm_ops_instance_6 [2021-11-25 17:49:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_pm_ops_instance_6 [2021-11-25 17:49:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_reliable_mode [2021-11-25 17:49:40,207 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_reliable_mode [2021-11-25 17:49:40,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 17:49:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 17:49:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_data_area [2021-11-25 17:49:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_data_area [2021-11-25 17:49:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 17:49:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 17:49:40,208 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 17:49:40,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 17:49:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:49:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure doc_is_ready [2021-11-25 17:49:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_is_ready [2021-11-25 17:49:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readw [2021-11-25 17:49:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readw [2021-11-25 17:49:40,209 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_release [2021-11-25 17:49:40,209 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_release [2021-11-25 17:49:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 17:49:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 17:49:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readb [2021-11-25 17:49:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readb [2021-11-25 17:49:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_resume [2021-11-25 17:49:40,210 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_resume [2021-11-25 17:49:40,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:49:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 17:49:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 17:49:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 17:49:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 17:49:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 17:49:40,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 17:49:40,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:49:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 17:49:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 17:49:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readw [2021-11-25 17:49:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readw [2021-11-25 17:49:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure doc_release_device [2021-11-25 17:49:40,212 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_release_device [2021-11-25 17:49:40,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 17:49:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 17:49:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 17:49:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 17:49:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readb [2021-11-25 17:49:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readb [2021-11-25 17:49:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-25 17:49:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-25 17:49:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2021-11-25 17:49:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2021-11-25 17:49:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 17:49:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 17:49:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_device_id [2021-11-25 17:49:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_device_id [2021-11-25 17:49:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 17:49:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 17:49:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-25 17:49:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-25 17:49:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:49:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-25 17:49:40,215 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-25 17:49:40,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-25 17:49:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-25 17:49:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:49:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 17:49:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 17:49:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:49:40,216 INFO L130 BoogieDeclarations]: Found specification of procedure doc_delay [2021-11-25 17:49:40,216 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_delay [2021-11-25 17:49:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 17:49:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:49:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:49:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:40,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 17:49:40,217 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-25 17:49:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-25 17:49:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_getbytes [2021-11-25 17:49:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_getbytes [2021-11-25 17:49:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_asic_mode [2021-11-25 17:49:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_asic_mode [2021-11-25 17:49:40,218 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_sequence [2021-11-25 17:49:40,218 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_sequence [2021-11-25 17:49:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-25 17:49:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-25 17:49:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 17:49:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 17:49:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_suspend [2021-11-25 17:49:40,219 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_suspend [2021-11-25 17:49:40,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:49:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:49:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_probe [2021-11-25 17:49:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_probe [2021-11-25 17:49:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:49:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:49:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-25 17:49:40,220 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-25 17:49:40,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 17:49:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 17:49:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 17:49:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 17:49:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-25 17:49:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-25 17:49:40,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 17:49:40,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 17:49:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:49:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure doc_page_finish [2021-11-25 17:49:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_page_finish [2021-11-25 17:49:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 17:49:40,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 17:49:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:49:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure doc_reset_seq [2021-11-25 17:49:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_reset_seq [2021-11-25 17:49:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_command [2021-11-25 17:49:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_command [2021-11-25 17:49:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_finish [2021-11-25 17:49:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_finish [2021-11-25 17:49:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-11-25 17:49:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-11-25 17:49:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:49:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:49:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:49:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 17:49:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 17:49:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 17:49:40,224 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 17:49:40,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 17:49:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 17:49:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2021-11-25 17:49:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2021-11-25 17:49:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 17:49:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 17:49:40,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 17:49:40,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 17:49:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 17:49:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 17:49:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 17:49:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-25 17:49:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_dev2docg3 [2021-11-25 17:49:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_dev2docg3 [2021-11-25 17:49:40,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 17:49:40,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 17:49:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-25 17:49:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-25 17:49:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 17:49:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 17:49:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:49:40,227 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:49:40,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 17:49:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-25 17:49:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-25 17:49:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-25 17:49:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:49:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 17:49:40,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 17:49:40,228 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-25 17:49:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-25 17:49:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_address [2021-11-25 17:49:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_address [2021-11-25 17:49:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:49:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:49:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure trace_docg3_io [2021-11-25 17:49:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_docg3_io [2021-11-25 17:49:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 17:49:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 17:49:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 17:49:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 17:49:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure doc_wait_ready [2021-11-25 17:49:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_wait_ready [2021-11-25 17:49:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure free_bch [2021-11-25 17:49:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bch [2021-11-25 17:49:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 17:49:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 17:49:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 17:49:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 17:49:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:49:40,231 INFO L130 BoogieDeclarations]: Found specification of procedure doc_setup_addr_sector [2021-11-25 17:49:40,231 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_setup_addr_sector [2021-11-25 17:49:40,232 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-25 17:49:40,232 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-25 17:49:41,090 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:49:41,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:49:41,894 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 17:49:52,310 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:49:52,934 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:49:52,935 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-25 17:49:52,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:52 BoogieIcfgContainer [2021-11-25 17:49:52,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:49:52,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:49:52,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:49:52,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:49:52,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:49:33" (1/3) ... [2021-11-25 17:49:52,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d3965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:52, skipping insertion in model container [2021-11-25 17:49:52,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:49:39" (2/3) ... [2021-11-25 17:49:52,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@665d3965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:49:52, skipping insertion in model container [2021-11-25 17:49:52,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:49:52" (3/3) ... [2021-11-25 17:49:52,949 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-25 17:49:52,954 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:49:52,955 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-25 17:49:53,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:49:53,039 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:49:53,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-25 17:49:53,100 INFO L276 IsEmpty]: Start isEmpty. Operand has 1292 states, 708 states have (on average 1.3163841807909604) internal successors, (932), 780 states have internal predecessors, (932), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 442 states have call predecessors, (452), 452 states have call successors, (452) [2021-11-25 17:49:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-25 17:49:53,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:53,108 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:53,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:49:53,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:53,115 INFO L85 PathProgramCache]: Analyzing trace with hash 695989456, now seen corresponding path program 1 times [2021-11-25 17:49:53,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:53,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377787398] [2021-11-25 17:49:53,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:53,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:53,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:53,831 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:49:53,831 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:53,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377787398] [2021-11-25 17:49:53,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377787398] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:53,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:53,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:53,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378732573] [2021-11-25 17:49:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:53,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:53,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:53,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:53,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:53,872 INFO L87 Difference]: Start difference. First operand has 1292 states, 708 states have (on average 1.3163841807909604) internal successors, (932), 780 states have internal predecessors, (932), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 442 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 17:49:57,819 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 [] [2021-11-25 17:49:58,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:49:58,126 INFO L93 Difference]: Finished difference Result 2802 states and 4076 transitions. [2021-11-25 17:49:58,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:49:58,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 36 [2021-11-25 17:49:58,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:49:58,155 INFO L225 Difference]: With dead ends: 2802 [2021-11-25 17:49:58,156 INFO L226 Difference]: Without dead ends: 1518 [2021-11-25 17:49:58,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:49:58,176 INFO L933 BasicCegarLoop]: 1655 mSDtfsCounter, 1537 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 3826 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:49:58,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 3826 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 17:49:58,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2021-11-25 17:49:58,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1509. [2021-11-25 17:49:58,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 842 states have (on average 1.2719714964370545) internal successors, (1071), 914 states have internal predecessors, (1071), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:49:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2107 transitions. [2021-11-25 17:49:58,359 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2107 transitions. Word has length 36 [2021-11-25 17:49:58,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:49:58,360 INFO L470 AbstractCegarLoop]: Abstraction has 1509 states and 2107 transitions. [2021-11-25 17:49:58,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 17:49:58,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2107 transitions. [2021-11-25 17:49:58,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-25 17:49:58,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:49:58,363 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:49:58,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:49:58,364 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:49:58,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:49:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 308771682, now seen corresponding path program 1 times [2021-11-25 17:49:58,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:49:58,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117300724] [2021-11-25 17:49:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:49:58,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:49:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:49:58,609 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:49:58,609 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:49:58,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117300724] [2021-11-25 17:49:58,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117300724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:49:58,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:49:58,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:49:58,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746289853] [2021-11-25 17:49:58,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:49:58,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:49:58,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:49:58,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:49:58,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:49:58,613 INFO L87 Difference]: Start difference. First operand 1509 states and 2107 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 17:50:01,735 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 [] [2021-11-25 17:50:02,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:02,019 INFO L93 Difference]: Finished difference Result 1518 states and 2118 transitions. [2021-11-25 17:50:02,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:02,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 41 [2021-11-25 17:50:02,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:02,030 INFO L225 Difference]: With dead ends: 1518 [2021-11-25 17:50:02,030 INFO L226 Difference]: Without dead ends: 1516 [2021-11-25 17:50:02,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:02,033 INFO L933 BasicCegarLoop]: 1625 mSDtfsCounter, 1505 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:02,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 3764 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 17:50:02,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2021-11-25 17:50:02,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1507. [2021-11-25 17:50:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 841 states have (on average 1.2711058263971462) internal successors, (1069), 912 states have internal predecessors, (1069), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2105 transitions. [2021-11-25 17:50:02,134 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2105 transitions. Word has length 41 [2021-11-25 17:50:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:02,135 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2105 transitions. [2021-11-25 17:50:02,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 17:50:02,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2105 transitions. [2021-11-25 17:50:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 17:50:02,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:02,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:02,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:50:02,138 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:02,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1807539982, now seen corresponding path program 1 times [2021-11-25 17:50:02,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:02,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754383030] [2021-11-25 17:50:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:02,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:02,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:02,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754383030] [2021-11-25 17:50:02,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754383030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:02,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:02,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:02,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950142757] [2021-11-25 17:50:02,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:02,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:02,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:02,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:02,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:02,368 INFO L87 Difference]: Start difference. First operand 1507 states and 2105 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 17:50:05,706 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 [] [2021-11-25 17:50:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:06,071 INFO L93 Difference]: Finished difference Result 1516 states and 2116 transitions. [2021-11-25 17:50:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:06,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 46 [2021-11-25 17:50:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:06,084 INFO L225 Difference]: With dead ends: 1516 [2021-11-25 17:50:06,085 INFO L226 Difference]: Without dead ends: 1514 [2021-11-25 17:50:06,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:06,091 INFO L933 BasicCegarLoop]: 1623 mSDtfsCounter, 1502 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:06,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1509 Valid, 3760 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 17:50:06,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2021-11-25 17:50:06,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1505. [2021-11-25 17:50:06,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 840 states have (on average 1.2702380952380952) internal successors, (1067), 910 states have internal predecessors, (1067), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:06,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2103 transitions. [2021-11-25 17:50:06,190 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2103 transitions. Word has length 46 [2021-11-25 17:50:06,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:06,191 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 2103 transitions. [2021-11-25 17:50:06,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 17:50:06,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2103 transitions. [2021-11-25 17:50:06,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 17:50:06,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:06,199 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:06,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:50:06,200 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:06,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:06,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1669282941, now seen corresponding path program 1 times [2021-11-25 17:50:06,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:06,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77592472] [2021-11-25 17:50:06,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:06,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:06,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77592472] [2021-11-25 17:50:06,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77592472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:06,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:06,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:06,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329718062] [2021-11-25 17:50:06,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:06,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:06,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:06,462 INFO L87 Difference]: Start difference. First operand 1505 states and 2103 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 17:50:09,797 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 [] [2021-11-25 17:50:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:10,065 INFO L93 Difference]: Finished difference Result 1514 states and 2114 transitions. [2021-11-25 17:50:10,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:10,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-25 17:50:10,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:10,078 INFO L225 Difference]: With dead ends: 1514 [2021-11-25 17:50:10,079 INFO L226 Difference]: Without dead ends: 1512 [2021-11-25 17:50:10,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:10,081 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 1499 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:10,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 3756 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:50:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2021-11-25 17:50:10,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1503. [2021-11-25 17:50:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 839 states have (on average 1.269368295589988) internal successors, (1065), 908 states have internal predecessors, (1065), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2101 transitions. [2021-11-25 17:50:10,179 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2101 transitions. Word has length 51 [2021-11-25 17:50:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:10,180 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 2101 transitions. [2021-11-25 17:50:10,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 17:50:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2101 transitions. [2021-11-25 17:50:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-25 17:50:10,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:10,182 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:10,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:50:10,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:10,183 INFO L85 PathProgramCache]: Analyzing trace with hash 141599472, now seen corresponding path program 1 times [2021-11-25 17:50:10,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:10,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219999472] [2021-11-25 17:50:10,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:10,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:10,434 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:10,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219999472] [2021-11-25 17:50:10,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219999472] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:10,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:10,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:10,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72391516] [2021-11-25 17:50:10,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:10,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:10,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:10,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:10,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:10,436 INFO L87 Difference]: Start difference. First operand 1503 states and 2101 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 17:50:13,925 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 [] [2021-11-25 17:50:14,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:14,207 INFO L93 Difference]: Finished difference Result 1512 states and 2112 transitions. [2021-11-25 17:50:14,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:14,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-25 17:50:14,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:14,220 INFO L225 Difference]: With dead ends: 1512 [2021-11-25 17:50:14,220 INFO L226 Difference]: Without dead ends: 1510 [2021-11-25 17:50:14,222 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:14,223 INFO L933 BasicCegarLoop]: 1619 mSDtfsCounter, 1496 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:14,223 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 3752 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 17:50:14,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-11-25 17:50:14,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1501. [2021-11-25 17:50:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 838 states have (on average 1.2684964200477327) internal successors, (1063), 906 states have internal predecessors, (1063), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:14,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2099 transitions. [2021-11-25 17:50:14,323 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2099 transitions. Word has length 56 [2021-11-25 17:50:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:14,324 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 2099 transitions. [2021-11-25 17:50:14,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 17:50:14,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2099 transitions. [2021-11-25 17:50:14,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-25 17:50:14,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:14,326 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:14,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:50:14,326 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:14,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:14,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2077723148, now seen corresponding path program 1 times [2021-11-25 17:50:14,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:14,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671492779] [2021-11-25 17:50:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:14,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:14,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:14,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:14,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671492779] [2021-11-25 17:50:14,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671492779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:14,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:14,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:14,531 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127205175] [2021-11-25 17:50:14,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:14,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:14,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:14,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:14,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:14,532 INFO L87 Difference]: Start difference. First operand 1501 states and 2099 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 17:50:17,865 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 [] [2021-11-25 17:50:18,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:18,152 INFO L93 Difference]: Finished difference Result 1510 states and 2110 transitions. [2021-11-25 17:50:18,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:18,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-25 17:50:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:18,166 INFO L225 Difference]: With dead ends: 1510 [2021-11-25 17:50:18,166 INFO L226 Difference]: Without dead ends: 1508 [2021-11-25 17:50:18,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:18,169 INFO L933 BasicCegarLoop]: 1617 mSDtfsCounter, 1493 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:18,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 3748 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:50:18,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2021-11-25 17:50:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2021-11-25 17:50:18,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 837 states have (on average 1.2676224611708482) internal successors, (1061), 904 states have internal predecessors, (1061), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:18,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2097 transitions. [2021-11-25 17:50:18,376 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2097 transitions. Word has length 61 [2021-11-25 17:50:18,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:18,377 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 2097 transitions. [2021-11-25 17:50:18,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 17:50:18,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2097 transitions. [2021-11-25 17:50:18,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 17:50:18,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:18,378 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:18,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:50:18,379 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:18,380 INFO L85 PathProgramCache]: Analyzing trace with hash -810269737, now seen corresponding path program 1 times [2021-11-25 17:50:18,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:18,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006712672] [2021-11-25 17:50:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:18,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:18,595 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:18,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:18,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006712672] [2021-11-25 17:50:18,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006712672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:18,596 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:18,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:18,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732094564] [2021-11-25 17:50:18,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:18,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:18,597 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:18,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:18,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:18,598 INFO L87 Difference]: Start difference. First operand 1499 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 17:50:21,906 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 [] [2021-11-25 17:50:22,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:22,191 INFO L93 Difference]: Finished difference Result 1508 states and 2108 transitions. [2021-11-25 17:50:22,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:22,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-25 17:50:22,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:22,205 INFO L225 Difference]: With dead ends: 1508 [2021-11-25 17:50:22,205 INFO L226 Difference]: Without dead ends: 1506 [2021-11-25 17:50:22,206 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:22,207 INFO L933 BasicCegarLoop]: 1615 mSDtfsCounter, 1490 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:22,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 3744 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:50:22,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-11-25 17:50:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1497. [2021-11-25 17:50:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 836 states have (on average 1.2667464114832536) internal successors, (1059), 902 states have internal predecessors, (1059), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2095 transitions. [2021-11-25 17:50:22,305 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2095 transitions. Word has length 66 [2021-11-25 17:50:22,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:22,306 INFO L470 AbstractCegarLoop]: Abstraction has 1497 states and 2095 transitions. [2021-11-25 17:50:22,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 17:50:22,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2095 transitions. [2021-11-25 17:50:22,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-25 17:50:22,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:22,307 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:22,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:50:22,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:22,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:22,308 INFO L85 PathProgramCache]: Analyzing trace with hash -240152734, now seen corresponding path program 1 times [2021-11-25 17:50:22,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:22,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592933380] [2021-11-25 17:50:22,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:22,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:22,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:22,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592933380] [2021-11-25 17:50:22,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592933380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:22,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:22,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:22,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429979101] [2021-11-25 17:50:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:22,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:22,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:22,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:22,495 INFO L87 Difference]: Start difference. First operand 1497 states and 2095 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 17:50:25,740 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 [] [2021-11-25 17:50:26,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:26,027 INFO L93 Difference]: Finished difference Result 1506 states and 2106 transitions. [2021-11-25 17:50:26,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:26,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-25 17:50:26,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:26,040 INFO L225 Difference]: With dead ends: 1506 [2021-11-25 17:50:26,041 INFO L226 Difference]: Without dead ends: 1504 [2021-11-25 17:50:26,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:26,043 INFO L933 BasicCegarLoop]: 1613 mSDtfsCounter, 1491 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:26,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1498 Valid, 3736 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 17:50:26,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2021-11-25 17:50:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1495. [2021-11-25 17:50:26,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 835 states have (on average 1.2658682634730538) internal successors, (1057), 900 states have internal predecessors, (1057), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2093 transitions. [2021-11-25 17:50:26,155 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2093 transitions. Word has length 71 [2021-11-25 17:50:26,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:26,155 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 2093 transitions. [2021-11-25 17:50:26,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 17:50:26,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2093 transitions. [2021-11-25 17:50:26,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-25 17:50:26,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:26,157 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:26,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 17:50:26,158 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:26,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:26,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1141601061, now seen corresponding path program 1 times [2021-11-25 17:50:26,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:26,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857459042] [2021-11-25 17:50:26,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:26,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:26,352 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:26,352 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:26,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857459042] [2021-11-25 17:50:26,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857459042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:26,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:26,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:26,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660179131] [2021-11-25 17:50:26,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:26,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:26,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:26,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:26,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:26,355 INFO L87 Difference]: Start difference. First operand 1495 states and 2093 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 17:50:29,899 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 [] [2021-11-25 17:50:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:30,172 INFO L93 Difference]: Finished difference Result 1504 states and 2104 transitions. [2021-11-25 17:50:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-25 17:50:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:30,185 INFO L225 Difference]: With dead ends: 1504 [2021-11-25 17:50:30,185 INFO L226 Difference]: Without dead ends: 1502 [2021-11-25 17:50:30,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:30,187 INFO L933 BasicCegarLoop]: 1611 mSDtfsCounter, 1483 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:30,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 3736 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 17:50:30,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2021-11-25 17:50:30,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1493. [2021-11-25 17:50:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 834 states have (on average 1.264988009592326) internal successors, (1055), 898 states have internal predecessors, (1055), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:30,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2091 transitions. [2021-11-25 17:50:30,289 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2091 transitions. Word has length 73 [2021-11-25 17:50:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:30,353 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 2091 transitions. [2021-11-25 17:50:30,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 17:50:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2091 transitions. [2021-11-25 17:50:30,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-25 17:50:30,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:30,355 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:30,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 17:50:30,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:30,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:30,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1361060451, now seen corresponding path program 1 times [2021-11-25 17:50:30,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:30,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996488480] [2021-11-25 17:50:30,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:30,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:30,568 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:30,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996488480] [2021-11-25 17:50:30,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996488480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:30,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:30,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:30,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735104202] [2021-11-25 17:50:30,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:30,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:30,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:30,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:30,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:30,571 INFO L87 Difference]: Start difference. First operand 1493 states and 2091 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 17:50:34,102 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 [] [2021-11-25 17:50:34,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:34,368 INFO L93 Difference]: Finished difference Result 1502 states and 2102 transitions. [2021-11-25 17:50:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:34,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 78 [2021-11-25 17:50:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:34,381 INFO L225 Difference]: With dead ends: 1502 [2021-11-25 17:50:34,382 INFO L226 Difference]: Without dead ends: 1500 [2021-11-25 17:50:34,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:34,384 INFO L933 BasicCegarLoop]: 1609 mSDtfsCounter, 1482 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:34,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 3732 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 17:50:34,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-25 17:50:34,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1491. [2021-11-25 17:50:34,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 833 states have (on average 1.2641056422569028) internal successors, (1053), 896 states have internal predecessors, (1053), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:34,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2089 transitions. [2021-11-25 17:50:34,485 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2089 transitions. Word has length 78 [2021-11-25 17:50:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:34,486 INFO L470 AbstractCegarLoop]: Abstraction has 1491 states and 2089 transitions. [2021-11-25 17:50:34,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 17:50:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2089 transitions. [2021-11-25 17:50:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-25 17:50:34,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:34,488 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:34,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 17:50:34,488 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:34,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:34,489 INFO L85 PathProgramCache]: Analyzing trace with hash 803617159, now seen corresponding path program 1 times [2021-11-25 17:50:34,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:34,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613299319] [2021-11-25 17:50:34,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:34,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:34,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:34,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613299319] [2021-11-25 17:50:34,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613299319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:34,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:34,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:34,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226626149] [2021-11-25 17:50:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:34,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:34,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:34,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:34,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:34,690 INFO L87 Difference]: Start difference. First operand 1491 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 17:50:38,154 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 [] [2021-11-25 17:50:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:38,414 INFO L93 Difference]: Finished difference Result 1500 states and 2100 transitions. [2021-11-25 17:50:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:38,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 83 [2021-11-25 17:50:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:38,427 INFO L225 Difference]: With dead ends: 1500 [2021-11-25 17:50:38,427 INFO L226 Difference]: Without dead ends: 1498 [2021-11-25 17:50:38,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:38,429 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 1479 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:38,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 3728 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-25 17:50:38,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2021-11-25 17:50:38,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1489. [2021-11-25 17:50:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 832 states have (on average 1.2632211538461537) internal successors, (1051), 894 states have internal predecessors, (1051), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2087 transitions. [2021-11-25 17:50:38,549 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2087 transitions. Word has length 83 [2021-11-25 17:50:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:38,550 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 2087 transitions. [2021-11-25 17:50:38,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 17:50:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2087 transitions. [2021-11-25 17:50:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-25 17:50:38,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:38,553 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:38,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 17:50:38,554 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:38,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:38,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1464370417, now seen corresponding path program 1 times [2021-11-25 17:50:38,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:38,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857567814] [2021-11-25 17:50:38,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:38,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:38,757 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:38,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857567814] [2021-11-25 17:50:38,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857567814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:38,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:38,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:38,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195083874] [2021-11-25 17:50:38,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:38,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:38,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:38,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:38,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:38,759 INFO L87 Difference]: Start difference. First operand 1489 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 17:50:42,406 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 [] [2021-11-25 17:50:42,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:42,638 INFO L93 Difference]: Finished difference Result 1498 states and 2098 transitions. [2021-11-25 17:50:42,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:42,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-25 17:50:42,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:42,651 INFO L225 Difference]: With dead ends: 1498 [2021-11-25 17:50:42,651 INFO L226 Difference]: Without dead ends: 1496 [2021-11-25 17:50:42,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:42,653 INFO L933 BasicCegarLoop]: 1605 mSDtfsCounter, 1476 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:42,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 3724 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 17:50:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2021-11-25 17:50:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1487. [2021-11-25 17:50:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 831 states have (on average 1.2623345367027679) internal successors, (1049), 892 states have internal predecessors, (1049), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2085 transitions. [2021-11-25 17:50:42,864 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2085 transitions. Word has length 88 [2021-11-25 17:50:42,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:42,865 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 2085 transitions. [2021-11-25 17:50:42,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 17:50:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2085 transitions. [2021-11-25 17:50:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-25 17:50:42,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:42,868 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:42,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 17:50:42,869 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:42,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:42,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1521654905, now seen corresponding path program 1 times [2021-11-25 17:50:42,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:42,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388045170] [2021-11-25 17:50:42,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:42,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:43,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:43,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388045170] [2021-11-25 17:50:43,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388045170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:43,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:43,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:43,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931215055] [2021-11-25 17:50:43,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:43,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:43,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:43,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:43,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:43,086 INFO L87 Difference]: Start difference. First operand 1487 states and 2085 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 17:50:46,821 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 [] [2021-11-25 17:50:47,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:47,098 INFO L93 Difference]: Finished difference Result 1496 states and 2096 transitions. [2021-11-25 17:50:47,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:47,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-25 17:50:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:47,112 INFO L225 Difference]: With dead ends: 1496 [2021-11-25 17:50:47,112 INFO L226 Difference]: Without dead ends: 1494 [2021-11-25 17:50:47,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:47,114 INFO L933 BasicCegarLoop]: 1603 mSDtfsCounter, 1473 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:47,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 3720 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 17:50:47,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2021-11-25 17:50:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2021-11-25 17:50:47,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 830 states have (on average 1.26144578313253) internal successors, (1047), 890 states have internal predecessors, (1047), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2083 transitions. [2021-11-25 17:50:47,254 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2083 transitions. Word has length 93 [2021-11-25 17:50:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:47,254 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 2083 transitions. [2021-11-25 17:50:47,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 17:50:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2083 transitions. [2021-11-25 17:50:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-25 17:50:47,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:47,257 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:47,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 17:50:47,257 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:47,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:47,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1459721526, now seen corresponding path program 1 times [2021-11-25 17:50:47,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:47,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902364149] [2021-11-25 17:50:47,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:47,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-25 17:50:47,500 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:47,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902364149] [2021-11-25 17:50:47,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902364149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:47,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:47,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:50:47,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126179988] [2021-11-25 17:50:47,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:47,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:50:47,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:47,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:50:47,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:47,503 INFO L87 Difference]: Start difference. First operand 1485 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 17:50:50,193 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 [] [2021-11-25 17:50:50,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:50,435 INFO L93 Difference]: Finished difference Result 2934 states and 4103 transitions. [2021-11-25 17:50:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:50:50,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2021-11-25 17:50:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:50,448 INFO L225 Difference]: With dead ends: 2934 [2021-11-25 17:50:50,448 INFO L226 Difference]: Without dead ends: 1490 [2021-11-25 17:50:50,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:50:50,457 INFO L933 BasicCegarLoop]: 1599 mSDtfsCounter, 1483 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:50,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2113 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-25 17:50:50,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-11-25 17:50:50,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1481. [2021-11-25 17:50:50,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 827 states have (on average 1.2599758162031438) internal successors, (1042), 886 states have internal predecessors, (1042), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:50,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2078 transitions. [2021-11-25 17:50:50,576 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2078 transitions. Word has length 106 [2021-11-25 17:50:50,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:50,576 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 2078 transitions. [2021-11-25 17:50:50,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 17:50:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2078 transitions. [2021-11-25 17:50:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-25 17:50:50,579 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:50,579 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:50,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 17:50:50,579 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:50,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 297312686, now seen corresponding path program 1 times [2021-11-25 17:50:50,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:50,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298344349] [2021-11-25 17:50:50,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:50,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:50,766 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:50,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:50,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298344349] [2021-11-25 17:50:50,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298344349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:50,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:50,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:50,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70924668] [2021-11-25 17:50:50,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:50,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:50,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:50,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:50,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:50,769 INFO L87 Difference]: Start difference. First operand 1481 states and 2078 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 17:50:54,171 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 [] [2021-11-25 17:50:54,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:54,406 INFO L93 Difference]: Finished difference Result 1490 states and 2089 transitions. [2021-11-25 17:50:54,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:54,406 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-25 17:50:54,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:54,418 INFO L225 Difference]: With dead ends: 1490 [2021-11-25 17:50:54,418 INFO L226 Difference]: Without dead ends: 1488 [2021-11-25 17:50:54,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:54,420 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 1465 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:54,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 3706 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:50:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-11-25 17:50:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1479. [2021-11-25 17:50:54,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 826 states have (on average 1.2590799031476998) internal successors, (1040), 884 states have internal predecessors, (1040), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2076 transitions. [2021-11-25 17:50:54,536 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2076 transitions. Word has length 98 [2021-11-25 17:50:54,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:54,537 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 2076 transitions. [2021-11-25 17:50:54,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 17:50:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2076 transitions. [2021-11-25 17:50:54,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 17:50:54,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:54,539 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:54,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 17:50:54,540 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:54,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2065544965, now seen corresponding path program 1 times [2021-11-25 17:50:54,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:54,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894110827] [2021-11-25 17:50:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:54,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:50:54,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:54,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894110827] [2021-11-25 17:50:54,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894110827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:50:54,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:50:54,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:50:54,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963658033] [2021-11-25 17:50:54,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:50:54,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:50:54,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:50:54,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:50:54,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:50:54,799 INFO L87 Difference]: Start difference. First operand 1479 states and 2076 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 17:50:56,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:59,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:50:59,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:50:59,512 INFO L93 Difference]: Finished difference Result 1488 states and 2087 transitions. [2021-11-25 17:50:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:50:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-25 17:50:59,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:50:59,522 INFO L225 Difference]: With dead ends: 1488 [2021-11-25 17:50:59,523 INFO L226 Difference]: Without dead ends: 1486 [2021-11-25 17:50:59,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:50:59,525 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 1462 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:50:59,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 3702 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 520 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 17:50:59,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2021-11-25 17:50:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1477. [2021-11-25 17:50:59,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 825 states have (on average 1.2581818181818183) internal successors, (1038), 882 states have internal predecessors, (1038), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:50:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2074 transitions. [2021-11-25 17:50:59,648 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2074 transitions. Word has length 103 [2021-11-25 17:50:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:50:59,649 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 2074 transitions. [2021-11-25 17:50:59,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 17:50:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2074 transitions. [2021-11-25 17:50:59,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-25 17:50:59,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:50:59,651 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:50:59,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 17:50:59,652 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:50:59,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:50:59,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1086108597, now seen corresponding path program 1 times [2021-11-25 17:50:59,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:50:59,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075360870] [2021-11-25 17:50:59,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:59,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:50:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:50:59,876 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-25 17:50:59,877 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:50:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075360870] [2021-11-25 17:50:59,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075360870] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:50:59,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787885537] [2021-11-25 17:50:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:50:59,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:50:59,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:50:59,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:50:59,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 17:51:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:00,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 3615 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 17:51:00,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:01,184 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-25 17:51:01,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:01,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787885537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:01,185 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:51:01,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-25 17:51:01,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941126577] [2021-11-25 17:51:01,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:01,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:01,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:01,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:01,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:51:01,187 INFO L87 Difference]: Start difference. First operand 1477 states and 2074 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 17:51:03,838 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 [] [2021-11-25 17:51:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:04,077 INFO L93 Difference]: Finished difference Result 2918 states and 4085 transitions. [2021-11-25 17:51:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-25 17:51:04,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:04,090 INFO L225 Difference]: With dead ends: 2918 [2021-11-25 17:51:04,090 INFO L226 Difference]: Without dead ends: 1482 [2021-11-25 17:51:04,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:51:04,099 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 1451 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:04,099 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 2104 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-25 17:51:04,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2021-11-25 17:51:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1473. [2021-11-25 17:51:04,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 822 states have (on average 1.25669099756691) internal successors, (1033), 878 states have internal predecessors, (1033), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:51:04,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2069 transitions. [2021-11-25 17:51:04,218 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2069 transitions. Word has length 114 [2021-11-25 17:51:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:04,219 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 2069 transitions. [2021-11-25 17:51:04,219 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 17:51:04,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2069 transitions. [2021-11-25 17:51:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-25 17:51:04,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:04,221 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:04,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 17:51:04,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-25 17:51:04,434 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:04,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:04,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1438157250, now seen corresponding path program 1 times [2021-11-25 17:51:04,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:04,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38597062] [2021-11-25 17:51:04,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:04,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:04,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:04,682 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:04,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38597062] [2021-11-25 17:51:04,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38597062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:04,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:04,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:04,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978286196] [2021-11-25 17:51:04,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:04,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:04,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:04,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:04,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:04,685 INFO L87 Difference]: Start difference. First operand 1473 states and 2069 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 17:51:05,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:51:08,781 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 [] [2021-11-25 17:51:09,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:09,098 INFO L93 Difference]: Finished difference Result 1482 states and 2080 transitions. [2021-11-25 17:51:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:09,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-25 17:51:09,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:09,112 INFO L225 Difference]: With dead ends: 1482 [2021-11-25 17:51:09,113 INFO L226 Difference]: Without dead ends: 1480 [2021-11-25 17:51:09,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:09,114 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 1454 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:09,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1461 Valid, 3688 Invalid, 523 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-25 17:51:09,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-11-25 17:51:09,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1471. [2021-11-25 17:51:09,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 821 states have (on average 1.2557856272838002) internal successors, (1031), 876 states have internal predecessors, (1031), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:51:09,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2067 transitions. [2021-11-25 17:51:09,233 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2067 transitions. Word has length 108 [2021-11-25 17:51:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:09,233 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 2067 transitions. [2021-11-25 17:51:09,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 17:51:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2067 transitions. [2021-11-25 17:51:09,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-25 17:51:09,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:09,236 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:09,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 17:51:09,237 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:09,237 INFO L85 PathProgramCache]: Analyzing trace with hash -964939657, now seen corresponding path program 1 times [2021-11-25 17:51:09,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:09,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447614060] [2021-11-25 17:51:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:09,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:09,435 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:09,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447614060] [2021-11-25 17:51:09,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447614060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:09,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:09,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:09,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511107002] [2021-11-25 17:51:09,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:09,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:09,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:09,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:09,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:09,438 INFO L87 Difference]: Start difference. First operand 1471 states and 2067 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 17:51:13,516 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 [] [2021-11-25 17:51:13,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:13,799 INFO L93 Difference]: Finished difference Result 1480 states and 2078 transitions. [2021-11-25 17:51:13,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:13,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-25 17:51:13,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:13,808 INFO L225 Difference]: With dead ends: 1480 [2021-11-25 17:51:13,808 INFO L226 Difference]: Without dead ends: 1478 [2021-11-25 17:51:13,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:13,810 INFO L933 BasicCegarLoop]: 1585 mSDtfsCounter, 1451 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:13,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 3684 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-25 17:51:13,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2021-11-25 17:51:13,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1469. [2021-11-25 17:51:13,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 820 states have (on average 1.2548780487804878) internal successors, (1029), 874 states have internal predecessors, (1029), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:51:13,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2065 transitions. [2021-11-25 17:51:13,924 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2065 transitions. Word has length 113 [2021-11-25 17:51:13,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:13,925 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2065 transitions. [2021-11-25 17:51:13,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 17:51:13,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2065 transitions. [2021-11-25 17:51:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-25 17:51:13,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:13,928 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:13,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 17:51:13,928 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:13,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:13,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1700511656, now seen corresponding path program 1 times [2021-11-25 17:51:13,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:13,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488064278] [2021-11-25 17:51:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:13,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:14,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:14,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488064278] [2021-11-25 17:51:14,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488064278] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:14,109 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:14,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:14,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529406346] [2021-11-25 17:51:14,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:14,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:14,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:14,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:14,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:14,111 INFO L87 Difference]: Start difference. First operand 1469 states and 2065 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 17:51:17,360 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 [] [2021-11-25 17:51:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:17,663 INFO L93 Difference]: Finished difference Result 1478 states and 2076 transitions. [2021-11-25 17:51:17,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:17,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-25 17:51:17,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:17,671 INFO L225 Difference]: With dead ends: 1478 [2021-11-25 17:51:17,671 INFO L226 Difference]: Without dead ends: 1476 [2021-11-25 17:51:17,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:17,673 INFO L933 BasicCegarLoop]: 1583 mSDtfsCounter, 1448 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:17,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 3680 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 17:51:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-25 17:51:17,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2021-11-25 17:51:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 819 states have (on average 1.253968253968254) internal successors, (1027), 872 states have internal predecessors, (1027), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:51:17,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2063 transitions. [2021-11-25 17:51:17,801 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2063 transitions. Word has length 118 [2021-11-25 17:51:17,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:17,802 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2063 transitions. [2021-11-25 17:51:17,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 17:51:17,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2063 transitions. [2021-11-25 17:51:17,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-25 17:51:17,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:17,805 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:17,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 17:51:17,805 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:17,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:17,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1636779750, now seen corresponding path program 1 times [2021-11-25 17:51:17,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:17,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258356211] [2021-11-25 17:51:17,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:17,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:17,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:17,996 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:17,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258356211] [2021-11-25 17:51:17,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258356211] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:17,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:17,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:17,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663838752] [2021-11-25 17:51:17,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:17,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:17,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:17,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:18,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:18,000 INFO L87 Difference]: Start difference. First operand 1467 states and 2063 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 17:51:21,741 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 [] [2021-11-25 17:51:22,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:22,009 INFO L93 Difference]: Finished difference Result 1476 states and 2074 transitions. [2021-11-25 17:51:22,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:22,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-25 17:51:22,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:22,016 INFO L225 Difference]: With dead ends: 1476 [2021-11-25 17:51:22,016 INFO L226 Difference]: Without dead ends: 1474 [2021-11-25 17:51:22,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:22,018 INFO L933 BasicCegarLoop]: 1581 mSDtfsCounter, 1445 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:22,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 3676 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 17:51:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-11-25 17:51:22,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2021-11-25 17:51:22,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 818 states have (on average 1.2530562347188263) internal successors, (1025), 870 states have internal predecessors, (1025), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-25 17:51:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2061 transitions. [2021-11-25 17:51:22,153 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2061 transitions. Word has length 123 [2021-11-25 17:51:22,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:22,153 INFO L470 AbstractCegarLoop]: Abstraction has 1465 states and 2061 transitions. [2021-11-25 17:51:22,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 17:51:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2061 transitions. [2021-11-25 17:51:22,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-25 17:51:22,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:22,156 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:22,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 17:51:22,157 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:22,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:22,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1686010327, now seen corresponding path program 1 times [2021-11-25 17:51:22,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:22,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299721469] [2021-11-25 17:51:22,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:22,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-25 17:51:22,393 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:22,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299721469] [2021-11-25 17:51:22,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299721469] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:51:22,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604894787] [2021-11-25 17:51:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:22,394 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:22,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:22,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 17:51:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:23,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 3878 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-25 17:51:23,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:23,853 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-11-25 17:51:23,853 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:23,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604894787] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:23,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:51:23,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-25 17:51:23,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313259815] [2021-11-25 17:51:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:23,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:51:23,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:51:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:51:23,855 INFO L87 Difference]: Start difference. First operand 1465 states and 2061 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 17:51:28,439 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 [] [2021-11-25 17:51:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:28,680 INFO L93 Difference]: Finished difference Result 2897 states and 4098 transitions. [2021-11-25 17:51:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:51:28,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 139 [2021-11-25 17:51:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:28,686 INFO L225 Difference]: With dead ends: 2897 [2021-11-25 17:51:28,686 INFO L226 Difference]: Without dead ends: 1473 [2021-11-25 17:51:28,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:51:28,694 INFO L933 BasicCegarLoop]: 1521 mSDtfsCounter, 2 mSDsluCounter, 5215 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6077 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:28,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6077 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 901 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-25 17:51:28,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-25 17:51:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1469. [2021-11-25 17:51:28,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 821 states have (on average 1.2521315468940317) internal successors, (1028), 873 states have internal predecessors, (1028), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 506 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-25 17:51:28,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2070 transitions. [2021-11-25 17:51:28,826 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2070 transitions. Word has length 139 [2021-11-25 17:51:28,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:28,827 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2070 transitions. [2021-11-25 17:51:28,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 17:51:28,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2070 transitions. [2021-11-25 17:51:28,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-25 17:51:28,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:28,830 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:28,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 17:51:29,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:29,043 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:29,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1602263416, now seen corresponding path program 1 times [2021-11-25 17:51:29,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:29,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341704198] [2021-11-25 17:51:29,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:29,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:29,232 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:29,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341704198] [2021-11-25 17:51:29,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341704198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:29,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:29,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:29,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842590099] [2021-11-25 17:51:29,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:29,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:29,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:29,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:29,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:29,236 INFO L87 Difference]: Start difference. First operand 1469 states and 2070 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 17:51:32,582 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 [] [2021-11-25 17:51:32,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:32,813 INFO L93 Difference]: Finished difference Result 1478 states and 2081 transitions. [2021-11-25 17:51:32,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:32,814 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-25 17:51:32,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:32,820 INFO L225 Difference]: With dead ends: 1478 [2021-11-25 17:51:32,821 INFO L226 Difference]: Without dead ends: 1476 [2021-11-25 17:51:32,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:32,822 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 1442 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:32,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 3672 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 17:51:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-25 17:51:33,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2021-11-25 17:51:33,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 820 states have (on average 1.251219512195122) internal successors, (1026), 871 states have internal predecessors, (1026), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 506 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-25 17:51:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2068 transitions. [2021-11-25 17:51:33,029 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2068 transitions. Word has length 128 [2021-11-25 17:51:33,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:33,030 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2068 transitions. [2021-11-25 17:51:33,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 17:51:33,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2068 transitions. [2021-11-25 17:51:33,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-25 17:51:33,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:33,033 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:33,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 17:51:33,033 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:33,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:33,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1517560123, now seen corresponding path program 1 times [2021-11-25 17:51:33,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:33,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361137919] [2021-11-25 17:51:33,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:33,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:33,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:33,261 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2021-11-25 17:51:33,261 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:33,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361137919] [2021-11-25 17:51:33,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361137919] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:51:33,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941391441] [2021-11-25 17:51:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:33,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:51:33,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:51:33,264 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:51:33,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 17:51:34,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:34,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 3927 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-25 17:51:34,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:51:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 17:51:34,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:51:34,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941391441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:34,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:51:34,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2021-11-25 17:51:34,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818898316] [2021-11-25 17:51:34,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:34,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:51:34,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:34,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:51:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:34,643 INFO L87 Difference]: Start difference. First operand 1467 states and 2068 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 17:51:38,942 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 [] [2021-11-25 17:51:39,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:39,182 INFO L93 Difference]: Finished difference Result 2899 states and 4105 transitions. [2021-11-25 17:51:39,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:51:39,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 152 [2021-11-25 17:51:39,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:39,190 INFO L225 Difference]: With dead ends: 2899 [2021-11-25 17:51:39,190 INFO L226 Difference]: Without dead ends: 1473 [2021-11-25 17:51:39,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:39,202 INFO L933 BasicCegarLoop]: 1513 mSDtfsCounter, 2 mSDsluCounter, 5200 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6047 SdHoareTripleChecker+Invalid, 901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:39,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 6047 Invalid, 901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 900 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 17:51:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2021-11-25 17:51:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1469. [2021-11-25 17:51:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 822 states have (on average 1.2506082725060828) internal successors, (1028), 872 states have internal predecessors, (1028), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 507 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-25 17:51:39,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2070 transitions. [2021-11-25 17:51:39,342 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2070 transitions. Word has length 152 [2021-11-25 17:51:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:39,343 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2070 transitions. [2021-11-25 17:51:39,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 17:51:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2070 transitions. [2021-11-25 17:51:39,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-25 17:51:39,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:39,346 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:39,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 17:51:39,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-25 17:51:39,566 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:39,566 INFO L85 PathProgramCache]: Analyzing trace with hash -104496759, now seen corresponding path program 1 times [2021-11-25 17:51:39,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:39,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258206454] [2021-11-25 17:51:39,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:39,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:39,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:39,817 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 17:51:39,817 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:39,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258206454] [2021-11-25 17:51:39,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258206454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:39,818 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:39,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:51:39,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062598057] [2021-11-25 17:51:39,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:39,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:51:39,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:39,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:51:39,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:51:39,820 INFO L87 Difference]: Start difference. First operand 1469 states and 2070 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:43,533 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 [] [2021-11-25 17:51:43,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:43,749 INFO L93 Difference]: Finished difference Result 1478 states and 2081 transitions. [2021-11-25 17:51:43,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:51:43,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-25 17:51:43,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:43,757 INFO L225 Difference]: With dead ends: 1478 [2021-11-25 17:51:43,757 INFO L226 Difference]: Without dead ends: 1351 [2021-11-25 17:51:43,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:43,761 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 1439 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:43,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1444 Valid, 3670 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 17:51:43,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2021-11-25 17:51:43,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1342. [2021-11-25 17:51:43,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2681638044914134) internal successors, (960), 805 states have internal predecessors, (960), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 467 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-25 17:51:43,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1920 transitions. [2021-11-25 17:51:43,968 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1920 transitions. Word has length 133 [2021-11-25 17:51:43,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:43,969 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1920 transitions. [2021-11-25 17:51:43,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:43,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1920 transitions. [2021-11-25 17:51:43,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-25 17:51:43,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:43,972 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:43,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 17:51:43,973 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:43,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:43,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1269390461, now seen corresponding path program 2 times [2021-11-25 17:51:43,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:43,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632239222] [2021-11-25 17:51:43,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:43,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 271 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-11-25 17:51:44,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:44,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632239222] [2021-11-25 17:51:44,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632239222] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:44,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:44,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:51:44,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540876191] [2021-11-25 17:51:44,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:44,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:51:44,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:44,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:51:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:44,232 INFO L87 Difference]: Start difference. First operand 1342 states and 1920 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:48,691 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 [] [2021-11-25 17:51:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:48,887 INFO L93 Difference]: Finished difference Result 2669 states and 3847 transitions. [2021-11-25 17:51:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:51:48,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 165 [2021-11-25 17:51:48,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:48,893 INFO L225 Difference]: With dead ends: 2669 [2021-11-25 17:51:48,893 INFO L226 Difference]: Without dead ends: 1346 [2021-11-25 17:51:48,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:48,902 INFO L933 BasicCegarLoop]: 1385 mSDtfsCounter, 0 mSDsluCounter, 4751 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:48,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 5537 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 810 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-25 17:51:48,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2021-11-25 17:51:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1344. [2021-11-25 17:51:49,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 759 states have (on average 1.2674571805006587) internal successors, (962), 806 states have internal predecessors, (962), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 468 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-25 17:51:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1922 transitions. [2021-11-25 17:51:49,027 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1922 transitions. Word has length 165 [2021-11-25 17:51:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:49,028 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 1922 transitions. [2021-11-25 17:51:49,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1922 transitions. [2021-11-25 17:51:49,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-25 17:51:49,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:49,031 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:49,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 17:51:49,032 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:49,032 INFO L85 PathProgramCache]: Analyzing trace with hash -156069971, now seen corresponding path program 3 times [2021-11-25 17:51:49,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:49,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131918917] [2021-11-25 17:51:49,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:49,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:49,304 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-11-25 17:51:49,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:49,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131918917] [2021-11-25 17:51:49,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131918917] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:49,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:49,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:51:49,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988275050] [2021-11-25 17:51:49,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:49,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:51:49,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:49,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:51:49,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:51:49,307 INFO L87 Difference]: Start difference. First operand 1344 states and 1922 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:54,365 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 [] [2021-11-25 17:51:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:55,051 INFO L93 Difference]: Finished difference Result 1353 states and 1933 transitions. [2021-11-25 17:51:55,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 17:51:55,052 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 178 [2021-11-25 17:51:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:55,058 INFO L225 Difference]: With dead ends: 1353 [2021-11-25 17:51:55,058 INFO L226 Difference]: Without dead ends: 1351 [2021-11-25 17:51:55,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:51:55,060 INFO L933 BasicCegarLoop]: 1451 mSDtfsCounter, 1293 mSDsluCounter, 4866 mSDsCounter, 0 mSdLazyCounter, 1541 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1541 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:55,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1303 Valid, 5650 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1541 Invalid, 1 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 17:51:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2021-11-25 17:51:55,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1344. [2021-11-25 17:51:55,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 759 states have (on average 1.2661396574440054) internal successors, (961), 806 states have internal predecessors, (961), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 468 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-25 17:51:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1921 transitions. [2021-11-25 17:51:55,182 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1921 transitions. Word has length 178 [2021-11-25 17:51:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:55,183 INFO L470 AbstractCegarLoop]: Abstraction has 1344 states and 1921 transitions. [2021-11-25 17:51:55,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1921 transitions. [2021-11-25 17:51:55,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-25 17:51:55,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:55,186 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 7, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:55,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 17:51:55,187 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash 2044736738, now seen corresponding path program 1 times [2021-11-25 17:51:55,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:55,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88453556] [2021-11-25 17:51:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:55,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:55,491 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2021-11-25 17:51:55,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:55,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88453556] [2021-11-25 17:51:55,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88453556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:55,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:55,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 17:51:55,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462199965] [2021-11-25 17:51:55,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:55,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:51:55,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:55,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:51:55,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:55,494 INFO L87 Difference]: Start difference. First operand 1344 states and 1921 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:58,382 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 [] [2021-11-25 17:51:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:51:58,630 INFO L93 Difference]: Finished difference Result 2672 states and 3852 transitions. [2021-11-25 17:51:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:51:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 181 [2021-11-25 17:51:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:51:58,637 INFO L225 Difference]: With dead ends: 2672 [2021-11-25 17:51:58,637 INFO L226 Difference]: Without dead ends: 1347 [2021-11-25 17:51:58,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 17:51:58,646 INFO L933 BasicCegarLoop]: 1452 mSDtfsCounter, 1271 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1276 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 17:51:58,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1276 Valid, 1964 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 17:51:58,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-11-25 17:51:58,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1342. [2021-11-25 17:51:58,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 757 states have (on average 1.2642007926023777) internal successors, (957), 804 states have internal predecessors, (957), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 468 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-25 17:51:58,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1917 transitions. [2021-11-25 17:51:58,774 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1917 transitions. Word has length 181 [2021-11-25 17:51:58,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:51:58,775 INFO L470 AbstractCegarLoop]: Abstraction has 1342 states and 1917 transitions. [2021-11-25 17:51:58,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 17:51:58,775 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1917 transitions. [2021-11-25 17:51:58,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-11-25 17:51:58,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:51:58,788 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 15, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:51:58,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 17:51:58,789 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:51:58,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:51:58,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1601548711, now seen corresponding path program 1 times [2021-11-25 17:51:58,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:51:58,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211098598] [2021-11-25 17:51:58,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:51:58,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:51:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:51:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4299 trivial. 0 not checked. [2021-11-25 17:51:59,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:51:59,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211098598] [2021-11-25 17:51:59,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211098598] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:51:59,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:51:59,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:51:59,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195079546] [2021-11-25 17:51:59,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:51:59,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:51:59,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:51:59,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:51:59,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:51:59,184 INFO L87 Difference]: Start difference. First operand 1342 states and 1917 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-25 17:52:00,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 17:52:03,621 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 [] [2021-11-25 17:52:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:03,905 INFO L93 Difference]: Finished difference Result 1424 states and 2024 transitions. [2021-11-25 17:52:03,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:52:03,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 477 [2021-11-25 17:52:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:03,912 INFO L225 Difference]: With dead ends: 1424 [2021-11-25 17:52:03,913 INFO L226 Difference]: Without dead ends: 1422 [2021-11-25 17:52:03,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:52:03,915 INFO L933 BasicCegarLoop]: 1448 mSDtfsCounter, 1142 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 4913 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:03,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 4913 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2021-11-25 17:52:03,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2021-11-25 17:52:04,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1417. [2021-11-25 17:52:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 800 states have (on average 1.26375) internal successors, (1011), 849 states have internal predecessors, (1011), 498 states have call successors, (498), 115 states have call predecessors, (498), 116 states have return successors, (504), 489 states have call predecessors, (504), 498 states have call successors, (504) [2021-11-25 17:52:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2013 transitions. [2021-11-25 17:52:04,058 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2013 transitions. Word has length 477 [2021-11-25 17:52:04,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:04,060 INFO L470 AbstractCegarLoop]: Abstraction has 1417 states and 2013 transitions. [2021-11-25 17:52:04,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-25 17:52:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2013 transitions. [2021-11-25 17:52:04,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 873 [2021-11-25 17:52:04,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:04,077 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 14, 8, 8, 8, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:52:04,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 17:52:04,077 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:52:04,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:04,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1862400887, now seen corresponding path program 1 times [2021-11-25 17:52:04,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:04,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499840861] [2021-11-25 17:52:04,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:04,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4393 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4379 trivial. 0 not checked. [2021-11-25 17:52:04,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:04,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499840861] [2021-11-25 17:52:04,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499840861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:04,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:52:04,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:52:04,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388780196] [2021-11-25 17:52:04,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:04,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:52:04,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:04,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:52:04,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:52:04,762 INFO L87 Difference]: Start difference. First operand 1417 states and 2013 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-25 17:52:08,874 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 [] [2021-11-25 17:52:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:09,110 INFO L93 Difference]: Finished difference Result 3002 states and 4332 transitions. [2021-11-25 17:52:09,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:52:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 872 [2021-11-25 17:52:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:09,119 INFO L225 Difference]: With dead ends: 3002 [2021-11-25 17:52:09,119 INFO L226 Difference]: Without dead ends: 1604 [2021-11-25 17:52:09,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:52:09,128 INFO L933 BasicCegarLoop]: 1429 mSDtfsCounter, 123 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 34 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:09,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 4229 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 632 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-25 17:52:09,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2021-11-25 17:52:09,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1449. [2021-11-25 17:52:09,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1449 states, 821 states have (on average 1.2655298416565164) internal successors, (1039), 872 states have internal predecessors, (1039), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 500 states have call predecessors, (515), 509 states have call successors, (515) [2021-11-25 17:52:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2063 transitions. [2021-11-25 17:52:09,283 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2063 transitions. Word has length 872 [2021-11-25 17:52:09,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:09,284 INFO L470 AbstractCegarLoop]: Abstraction has 1449 states and 2063 transitions. [2021-11-25 17:52:09,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-25 17:52:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2063 transitions. [2021-11-25 17:52:09,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 811 [2021-11-25 17:52:09,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:09,302 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 13, 13, 10, 10, 10, 10, 10, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:52:09,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 17:52:09,303 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:52:09,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:09,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1894404527, now seen corresponding path program 1 times [2021-11-25 17:52:09,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:09,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466309799] [2021-11-25 17:52:09,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:09,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4526 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 4504 trivial. 0 not checked. [2021-11-25 17:52:09,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:09,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466309799] [2021-11-25 17:52:09,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466309799] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:52:09,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118709755] [2021-11-25 17:52:09,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:09,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:09,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:09,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:09,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 17:52:11,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:11,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 8331 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 17:52:11,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:13,108 INFO L134 CoverageAnalysis]: Checked inductivity of 4526 backedges. 1302 proven. 0 refuted. 0 times theorem prover too weak. 3224 trivial. 0 not checked. [2021-11-25 17:52:13,108 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 17:52:13,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118709755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:52:13,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 17:52:13,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-25 17:52:13,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201299132] [2021-11-25 17:52:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:52:13,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 17:52:13,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:52:13,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 17:52:13,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:52:13,111 INFO L87 Difference]: Start difference. First operand 1449 states and 2063 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2021-11-25 17:52:16,311 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 [] [2021-11-25 17:52:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:52:16,511 INFO L93 Difference]: Finished difference Result 2885 states and 4146 transitions. [2021-11-25 17:52:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 17:52:16,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) Word has length 810 [2021-11-25 17:52:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:52:16,520 INFO L225 Difference]: With dead ends: 2885 [2021-11-25 17:52:16,520 INFO L226 Difference]: Without dead ends: 1455 [2021-11-25 17:52:16,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 810 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:52:16,529 INFO L933 BasicCegarLoop]: 1383 mSDtfsCounter, 1 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:52:16,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2763 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 17:52:16,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2021-11-25 17:52:16,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1451. [2021-11-25 17:52:16,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 823 states have (on average 1.2648845686512757) internal successors, (1041), 874 states have internal predecessors, (1041), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 500 states have call predecessors, (515), 509 states have call successors, (515) [2021-11-25 17:52:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 2065 transitions. [2021-11-25 17:52:16,676 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 2065 transitions. Word has length 810 [2021-11-25 17:52:16,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:52:16,677 INFO L470 AbstractCegarLoop]: Abstraction has 1451 states and 2065 transitions. [2021-11-25 17:52:16,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 2 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (77), 2 states have call predecessors, (77), 2 states have call successors, (77) [2021-11-25 17:52:16,678 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 2065 transitions. [2021-11-25 17:52:16,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 857 [2021-11-25 17:52:16,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:52:16,696 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 17, 17, 12, 8, 8, 8, 8, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:52:16,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 17:52:16,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:16,910 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-25 17:52:16,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:52:16,911 INFO L85 PathProgramCache]: Analyzing trace with hash -528997573, now seen corresponding path program 1 times [2021-11-25 17:52:16,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:52:16,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876071128] [2021-11-25 17:52:16,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:16,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:52:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4470 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4442 trivial. 0 not checked. [2021-11-25 17:52:17,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:52:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876071128] [2021-11-25 17:52:17,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876071128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 17:52:17,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83613162] [2021-11-25 17:52:17,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:52:17,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 17:52:17,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:52:17,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 17:52:17,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_accb87cb-4819-4de8-a6e7-41bf9afa51ce/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 17:52:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:52:19,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 8570 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 17:52:19,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 17:52:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4470 backedges. 1443 proven. 1 refuted. 0 times theorem prover too weak. 3026 trivial. 0 not checked. [2021-11-25 17:52:20,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 17:52:23,000 INFO L134 CoverageAnalysis]: Checked inductivity of 4470 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 4442 trivial. 0 not checked. [2021-11-25 17:52:23,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83613162] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 17:52:23,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505824799] [2021-11-25 17:52:23,039 INFO L159 IcfgInterpreter]: Started Sifa with 220 locations of interest [2021-11-25 17:52:23,039 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 17:52:23,045 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 17:52:23,050 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 17:52:23,051 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 17:52:31,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:31,810 INFO L244 Elim1Store]: Index analysis took 436 ms [2021-11-25 17:52:32,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 31 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 114 [2021-11-25 17:52:32,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 37 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 125 [2021-11-25 17:52:32,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:32,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-25 17:52:34,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 58 select indices, 58 select index equivalence classes, 1711 disjoint index pairs (out of 1653 index pairs), introduced 58 new quantified variables, introduced 0 case distinctions, treesize of input 2208 treesize of output 1893 [2021-11-25 17:52:37,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:37,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:38,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:39,434 INFO L244 Elim1Store]: Index analysis took 1882 ms [2021-11-25 17:52:41,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 105 [2021-11-25 17:52:41,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:42,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:42,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:42,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:42,099 INFO L244 Elim1Store]: Index analysis took 819 ms [2021-11-25 17:52:42,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-25 17:52:43,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:43,846 INFO L244 Elim1Store]: Index analysis took 651 ms [2021-11-25 17:52:44,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 80 [2021-11-25 17:52:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:44,909 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-11-25 17:52:45,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 98 [2021-11-25 17:52:45,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-25 17:52:45,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:52:45,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-25 17:57:44,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 17:57:44,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 17:58:21,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:21,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-25 17:58:23,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:23,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2021-11-25 17:58:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:33,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:58:33,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:33,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:58:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:42,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 17:58:43,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 17:58:43,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7