./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.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_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/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_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/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_56a51add-5dc1-4b8d-851f-81ed6ea16301/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 eab80ceb86efdfc32d49c68260053532d6436b6332c39b2787aa0c8e4e87ea2b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:45:23,193 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:45:23,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:45:23,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:45:23,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:45:23,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:45:23,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:45:23,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:45:23,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:45:23,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:45:23,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:45:23,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:45:23,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:45:23,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:45:23,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:45:23,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:45:23,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:45:23,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:45:23,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:45:23,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:45:23,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:45:23,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:45:23,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:45:23,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:45:23,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:45:23,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:45:23,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:45:23,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:45:23,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:45:23,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:45:23,282 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:45:23,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:45:23,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:45:23,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:45:23,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:45:23,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:45:23,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:45:23,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:45:23,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:45:23,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:45:23,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:45:23,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:45:23,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:45:23,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:45:23,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:45:23,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:45:23,318 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:45:23,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:45:23,319 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:45:23,319 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:45:23,319 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:45:23,320 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:45:23,320 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:45:23,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:45:23,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:45:23,321 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:45:23,321 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:45:23,321 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:45:23,322 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:45:23,322 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:45:23,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:45:23,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:45:23,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:45:23,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:45:23,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:45:23,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:45:23,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:45:23,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:45:23,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:45:23,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:45:23,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:45:23,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:45:23,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:45:23,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:45:23,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:45:23,327 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:45:23,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:45:23,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:45:23,328 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:45:23,328 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:45:23,328 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab80ceb86efdfc32d49c68260053532d6436b6332c39b2787aa0c8e4e87ea2b [2021-11-25 19:45:23,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:45:23,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:45:23,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:45:23,599 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:45:23,600 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:45:23,601 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 19:45:23,668 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/data/33c83407a/b00bad01f5524d99a556a7b66a7cf356/FLAGcb81ea06a [2021-11-25 19:45:24,576 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:45:24,576 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 19:45:24,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/data/33c83407a/b00bad01f5524d99a556a7b66a7cf356/FLAGcb81ea06a [2021-11-25 19:45:24,993 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/data/33c83407a/b00bad01f5524d99a556a7b66a7cf356 [2021-11-25 19:45:24,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:45:24,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:45:24,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:45:24,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:45:25,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:45:25,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:45:24" (1/1) ... [2021-11-25 19:45:25,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f53078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:25, skipping insertion in model container [2021-11-25 19:45:25,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:45:24" (1/1) ... [2021-11-25 19:45:25,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:45:25,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:45:29,015 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425209,425222] [2021-11-25 19:45:29,019 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425356,425369] [2021-11-25 19:45:29,020 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425495,425508] [2021-11-25 19:45:29,020 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425653,425666] [2021-11-25 19:45:29,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:45:29,152 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:45:29,707 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425209,425222] [2021-11-25 19:45:29,708 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425356,425369] [2021-11-25 19:45:29,708 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425495,425508] [2021-11-25 19:45:29,709 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_56a51add-5dc1-4b8d-851f-81ed6ea16301/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425653,425666] [2021-11-25 19:45:29,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:45:30,056 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:45:30,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30 WrapperNode [2021-11-25 19:45:30,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:45:30,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:45:30,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:45:30,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:45:30,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,629 INFO L137 Inliner]: procedures = 501, calls = 3578, calls flagged for inlining = 311, calls inlined = 288, statements flattened = 8599 [2021-11-25 19:45:30,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:45:30,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:45:30,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:45:30,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:45:30,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:30,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:31,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:45:31,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:45:31,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:45:31,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:45:31,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (1/1) ... [2021-11-25 19:45:31,035 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:45:31,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:45:31,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:45:31,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a51add-5dc1-4b8d-851f-81ed6ea16301/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:45:31,106 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 19:45:31,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 19:45:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:45:31,107 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:45:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:45:31,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:45:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 19:45:31,107 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 19:45:31,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:45:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:45:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 19:45:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 19:45:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:45:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:45:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 19:45:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 19:45:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-11-25 19:45:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-11-25 19:45:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-11-25 19:45:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-11-25 19:45:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-11-25 19:45:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-11-25 19:45:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 19:45:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 19:45:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-11-25 19:45:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-11-25 19:45:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:45:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:45:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:45:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:45:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:45:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:45:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:45:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:45:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-11-25 19:45:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-11-25 19:45:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:45:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:45:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 19:45:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 19:45:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-11-25 19:45:31,112 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-11-25 19:45:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:45:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 19:45:31,112 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 19:45:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-11-25 19:45:31,112 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-11-25 19:45:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:45:31,112 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:45:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 19:45:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 19:45:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:45:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:45:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:45:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-11-25 19:45:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-11-25 19:45:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-11-25 19:45:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-11-25 19:45:31,114 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:45:31,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-11-25 19:45:31,114 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:45:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:45:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:45:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:45:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:45:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:45:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:45:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:45:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:45:31,115 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-25 19:45:31,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-25 19:45:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-11-25 19:45:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-11-25 19:45:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-11-25 19:45:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-11-25 19:45:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-25 19:45:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-25 19:45:31,116 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 19:45:31,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 19:45:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 19:45:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 19:45:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-11-25 19:45:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-11-25 19:45:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-11-25 19:45:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-11-25 19:45:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:45:31,117 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-11-25 19:45:31,117 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 19:45:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:45:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:45:31,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:45:31,118 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 19:45:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:45:31,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:45:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 19:45:31,119 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 19:45:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:45:31,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:45:31,119 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-11-25 19:45:31,119 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-11-25 19:45:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-11-25 19:45:31,120 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-11-25 19:45:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-11-25 19:45:31,120 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-11-25 19:45:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 19:45:31,120 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 19:45:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 19:45:31,120 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 19:45:31,120 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-11-25 19:45:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-11-25 19:45:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:45:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:45:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 19:45:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 19:45:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-11-25 19:45:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-11-25 19:45:31,121 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-11-25 19:45:31,121 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-11-25 19:45:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 19:45:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 19:45:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-11-25 19:45:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-11-25 19:45:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-11-25 19:45:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-11-25 19:45:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 19:45:31,122 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 19:45:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 19:45:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 19:45:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-25 19:45:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-25 19:45:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-25 19:45:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-25 19:45:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:45:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:45:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-11-25 19:45:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-11-25 19:45:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-11-25 19:45:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:45:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:45:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-11-25 19:45:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-11-25 19:45:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:45:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 19:45:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 19:45:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 19:45:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-11-25 19:45:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-11-25 19:45:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 19:45:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 19:45:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-11-25 19:45:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-11-25 19:45:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 19:45:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 19:45:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:45:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:45:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 19:45:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 19:45:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:45:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:45:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 19:45:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 19:45:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 19:45:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 19:45:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 19:45:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 19:45:31,127 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:45:31,127 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 19:45:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-11-25 19:45:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:45:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-11-25 19:45:31,128 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-11-25 19:45:31,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-25 19:45:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-11-25 19:45:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 19:45:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-11-25 19:45:31,129 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:45:31,129 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-11-25 19:45:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-11-25 19:45:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:45:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 19:45:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 19:45:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 19:45:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-11-25 19:45:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-11-25 19:45:31,130 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 19:45:31,130 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 19:45:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:45:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:45:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:45:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:45:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:45:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:45:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-11-25 19:45:31,131 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-11-25 19:45:31,131 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-11-25 19:45:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-11-25 19:45:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 19:45:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 19:45:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-11-25 19:45:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-11-25 19:45:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:45:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:45:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 19:45:31,132 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 19:45:31,132 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:45:31,133 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:45:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:45:31,133 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:45:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:45:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-11-25 19:45:31,133 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-11-25 19:45:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-11-25 19:45:31,133 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-11-25 19:45:31,133 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 19:45:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 19:45:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:45:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:45:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:45:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:45:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-11-25 19:45:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-11-25 19:45:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-11-25 19:45:31,134 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-11-25 19:45:31,134 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 19:45:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 19:45:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-11-25 19:45:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-11-25 19:45:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-11-25 19:45:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-11-25 19:45:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-11-25 19:45:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-11-25 19:45:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-11-25 19:45:31,135 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-11-25 19:45:31,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:45:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-11-25 19:45:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-25 19:45:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-11-25 19:45:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 19:45:31,136 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:45:31,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:45:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:45:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-11-25 19:45:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-11-25 19:45:31,137 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-25 19:45:31,137 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-25 19:45:32,282 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:45:32,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:45:47,685 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:58:58,123 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:59:09,764 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:59:09,765 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:59:09,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:59:09 BoogieIcfgContainer [2021-11-25 19:59:09,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:59:09,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:59:09,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:59:09,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:59:09,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:45:24" (1/3) ... [2021-11-25 19:59:09,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:59:09, skipping insertion in model container [2021-11-25 19:59:09,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:45:30" (2/3) ... [2021-11-25 19:59:09,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14ba9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:59:09, skipping insertion in model container [2021-11-25 19:59:09,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:59:09" (3/3) ... [2021-11-25 19:59:09,786 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 19:59:09,792 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:59:09,792 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 19:59:09,879 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:59:09,891 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 19:59:09,891 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 19:59:09,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 2123 states, 1196 states have (on average 1.2775919732441472) internal successors, (1528), 1275 states have internal predecessors, (1528), 798 states have call successors, (798), 129 states have call predecessors, (798), 128 states have return successors, (791), 767 states have call predecessors, (791), 791 states have call successors, (791) [2021-11-25 19:59:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 19:59:09,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:09,985 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:09,986 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:59:09,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1965154338, now seen corresponding path program 1 times [2021-11-25 19:59:10,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:10,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963412383] [2021-11-25 19:59:10,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:10,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:12,727 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-25 19:59:12,728 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:12,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963412383] [2021-11-25 19:59:12,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963412383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:12,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:12,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:12,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604595969] [2021-11-25 19:59:12,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:12,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:12,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:12,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:12,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:12,804 INFO L87 Difference]: Start difference. First operand has 2123 states, 1196 states have (on average 1.2775919732441472) internal successors, (1528), 1275 states have internal predecessors, (1528), 798 states have call successors, (798), 129 states have call predecessors, (798), 128 states have return successors, (791), 767 states have call predecessors, (791), 791 states have call successors, (791) 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 19:59:14,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:20,119 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:59:22,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:22,346 INFO L93 Difference]: Finished difference Result 4192 states and 6190 transitions. [2021-11-25 19:59:22,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:22,351 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 58 [2021-11-25 19:59:22,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:22,406 INFO L225 Difference]: With dead ends: 4192 [2021-11-25 19:59:22,407 INFO L226 Difference]: Without dead ends: 2076 [2021-11-25 19:59:22,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:22,443 INFO L933 BasicCegarLoop]: 2739 mSDtfsCounter, 3071 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3073 SdHoareTripleChecker+Valid, 5478 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:22,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3073 Valid, 5478 Invalid, 716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 715 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2021-11-25 19:59:22,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2021-11-25 19:59:22,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2076. [2021-11-25 19:59:22,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 1170 states have (on average 1.2709401709401709) internal successors, (1487), 1241 states have internal predecessors, (1487), 779 states have call successors, (779), 126 states have call predecessors, (779), 126 states have return successors, (779), 755 states have call predecessors, (779), 779 states have call successors, (779) [2021-11-25 19:59:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 3045 transitions. [2021-11-25 19:59:22,758 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 3045 transitions. Word has length 58 [2021-11-25 19:59:22,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:22,761 INFO L470 AbstractCegarLoop]: Abstraction has 2076 states and 3045 transitions. [2021-11-25 19:59:22,765 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 19:59:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 3045 transitions. [2021-11-25 19:59:22,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-25 19:59:22,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:59:22,780 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 19:59:22,780 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:59:22,781 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:59:22,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:59:22,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2029876898, now seen corresponding path program 1 times [2021-11-25 19:59:22,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:59:22,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248298526] [2021-11-25 19:59:22,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:59:22,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:59:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:59:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-25 19:59:24,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:59:24,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248298526] [2021-11-25 19:59:24,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248298526] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:59:24,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:59:24,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:59:24,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592968504] [2021-11-25 19:59:24,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:59:24,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:59:24,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:59:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:59:24,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:59:24,947 INFO L87 Difference]: Start difference. First operand 2076 states and 3045 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, (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 19:59:27,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:34,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:59:34,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:59:34,686 INFO L93 Difference]: Finished difference Result 2078 states and 3048 transitions. [2021-11-25 19:59:34,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:59:34,687 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, (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 90 [2021-11-25 19:59:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:59:34,688 INFO L225 Difference]: With dead ends: 2078 [2021-11-25 19:59:34,688 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 19:59:34,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:59:34,704 INFO L933 BasicCegarLoop]: 2694 mSDtfsCounter, 3018 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3018 SdHoareTripleChecker+Valid, 5386 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:59:34,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3018 Valid, 5386 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-25 19:59:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 19:59:34,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 19:59:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:59:34,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 19:59:34,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2021-11-25 19:59:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:59:34,709 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 19:59:34,709 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, (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 19:59:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 19:59:34,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 19:59:34,712 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-25 19:59:34,713 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-25 19:59:34,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:59:34,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.