./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 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/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_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P --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 0.2.1-dev-53f42b1 [2021-11-20 23:44:37,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:44:37,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:44:37,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:44:37,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:44:37,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:44:37,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:44:37,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:44:37,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:44:37,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:44:37,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:44:37,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:44:37,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:44:37,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:44:37,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:44:37,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:44:37,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:44:37,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:44:37,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:44:37,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:44:37,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:44:37,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:44:37,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:44:37,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:44:37,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:44:37,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:44:37,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:44:37,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:44:37,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:44:37,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:44:37,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:44:37,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:44:37,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:44:37,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:44:37,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:44:37,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:44:37,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:44:37,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:44:37,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:44:37,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:44:37,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:44:37,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 23:44:37,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:44:37,206 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:44:37,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:44:37,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:44:37,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:44:37,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:44:37,215 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:44:37,215 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:44:37,215 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:44:37,215 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:44:37,217 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:44:37,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:44:37,217 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:44:37,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:44:37,217 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:44:37,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:44:37,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:44:37,218 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:44:37,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:44:37,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:44:37,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:44:37,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:44:37,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:44:37,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:44:37,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:44:37,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:44:37,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:44:37,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:44:37,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:44:37,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:44:37,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:44:37,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:44:37,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:44:37,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:44:37,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:44:37,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:44:37,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:44:37,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:44:37,225 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_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eab80ceb86efdfc32d49c68260053532d6436b6332c39b2787aa0c8e4e87ea2b [2021-11-20 23:44:37,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:44:37,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:44:37,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:44:37,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:44:37,568 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:44:37,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-20 23:44:37,652 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/data/70c5cbe18/97b65c674c004bf78d656e84480294ed/FLAG1c41eb2e6 [2021-11-20 23:44:38,677 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:44:38,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-20 23:44:38,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/data/70c5cbe18/97b65c674c004bf78d656e84480294ed/FLAG1c41eb2e6 [2021-11-20 23:44:39,015 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/data/70c5cbe18/97b65c674c004bf78d656e84480294ed [2021-11-20 23:44:39,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:44:39,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:44:39,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:44:39,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:44:39,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:44:39,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:44:39" (1/1) ... [2021-11-20 23:44:39,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@120a3906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:39, skipping insertion in model container [2021-11-20 23:44:39,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:44:39" (1/1) ... [2021-11-20 23:44:39,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:44:39,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:44:43,099 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425209,425222] [2021-11-20 23:44:43,103 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425356,425369] [2021-11-20 23:44:43,104 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425495,425508] [2021-11-20 23:44:43,104 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425653,425666] [2021-11-20 23:44:43,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:44:43,242 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:44:43,794 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425209,425222] [2021-11-20 23:44:43,795 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425356,425369] [2021-11-20 23:44:43,795 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425495,425508] [2021-11-20 23:44:43,796 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_32475ca7-0650-40de-926b-d1a4af536578/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[425653,425666] [2021-11-20 23:44:43,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:44:44,121 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:44:44,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44 WrapperNode [2021-11-20 23:44:44,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:44:44,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:44:44,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:44:44,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:44:44,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,620 INFO L137 Inliner]: procedures = 501, calls = 3578, calls flagged for inlining = 311, calls inlined = 288, statements flattened = 8599 [2021-11-20 23:44:44,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:44:44,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:44:44,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:44:44,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:44:44,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:44,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:45,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:44:45,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:44:45,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:44:45,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:44:45,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (1/1) ... [2021-11-20 23:44:45,058 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:44:45,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:44:45,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:44:45,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32475ca7-0650-40de-926b-d1a4af536578/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:44:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 23:44:45,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 23:44:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 23:44:45,235 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 23:44:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 23:44:45,235 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 23:44:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-20 23:44:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-20 23:44:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 23:44:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 23:44:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-20 23:44:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-20 23:44:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 23:44:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 23:44:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 23:44:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 23:44:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-11-20 23:44:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-11-20 23:44:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-11-20 23:44:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-11-20 23:44:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-11-20 23:44:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-11-20 23:44:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 23:44:45,238 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 23:44:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-11-20 23:44:45,238 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-11-20 23:44:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 23:44:45,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 23:44:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 23:44:45,239 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 23:44:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 23:44:45,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 23:44:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 23:44:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 23:44:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-11-20 23:44:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-11-20 23:44:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 23:44:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 23:44:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 23:44:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 23:44:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-11-20 23:44:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-11-20 23:44:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:44:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-20 23:44:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-20 23:44:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-11-20 23:44:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-11-20 23:44:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 23:44:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 23:44:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 23:44:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 23:44:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 23:44:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 23:44:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 23:44:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-11-20 23:44:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-11-20 23:44:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-11-20 23:44:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-11-20 23:44:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 23:44:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-11-20 23:44:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-11-20 23:44:45,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 23:44:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 23:44:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-11-20 23:44:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-11-20 23:44:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:44:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 23:44:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 23:44:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 23:44:45,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 23:44:45,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 23:44:45,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 23:44:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 23:44:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 23:44:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-20 23:44:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-20 23:44:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-11-20 23:44:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-11-20 23:44:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-11-20 23:44:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-11-20 23:44:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-20 23:44:45,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-20 23:44:45,249 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 23:44:45,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 23:44:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 23:44:45,251 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 23:44:45,251 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-11-20 23:44:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-11-20 23:44:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-11-20 23:44:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-11-20 23:44:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:44:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-11-20 23:44:45,252 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-11-20 23:44:45,252 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 23:44:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 23:44:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:44:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 23:44:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 23:44:45,253 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 23:44:45,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 23:44:45,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:44:45,254 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 23:44:45,254 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:44:45,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 23:44:45,255 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 23:44:45,255 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 23:44:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:44:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 23:44:45,259 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-11-20 23:44:45,259 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-11-20 23:44:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-11-20 23:44:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-11-20 23:44:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-11-20 23:44:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-11-20 23:44:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 23:44:45,260 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 23:44:45,260 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-20 23:44:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-20 23:44:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-11-20 23:44:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-11-20 23:44:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 23:44:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 23:44:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 23:44:45,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 23:44:45,261 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-11-20 23:44:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-11-20 23:44:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-11-20 23:44:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-11-20 23:44:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-20 23:44:45,262 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-20 23:44:45,262 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-11-20 23:44:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-11-20 23:44:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-11-20 23:44:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-11-20 23:44:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 23:44:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 23:44:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 23:44:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 23:44:45,263 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-20 23:44:45,263 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-20 23:44:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-20 23:44:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-20 23:44:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:44:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:44:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-11-20 23:44:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-11-20 23:44:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-11-20 23:44:45,264 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-11-20 23:44:45,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 23:44:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-11-20 23:44:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-11-20 23:44:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 23:44:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 23:44:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 23:44:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-11-20 23:44:45,265 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-11-20 23:44:45,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:44:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 23:44:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 23:44:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 23:44:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-11-20 23:44:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-11-20 23:44:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 23:44:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 23:44:45,266 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-11-20 23:44:45,266 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-11-20 23:44:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 23:44:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 23:44:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:44:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:44:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-20 23:44:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-20 23:44:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 23:44:45,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 23:44:45,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 23:44:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 23:44:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-20 23:44:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-20 23:44:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 23:44:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 23:44:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 23:44:45,268 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 23:44:45,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 23:44:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 23:44:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:44:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-11-20 23:44:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-11-20 23:44:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 23:44:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 23:44:45,269 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-11-20 23:44:45,269 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-11-20 23:44:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-20 23:44:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-20 23:44:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:44:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-11-20 23:44:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-11-20 23:44:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-20 23:44:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-20 23:44:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-11-20 23:44:45,270 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-11-20 23:44:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 23:44:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-11-20 23:44:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-11-20 23:44:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:44:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 23:44:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 23:44:45,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 23:44:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-11-20 23:44:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-11-20 23:44:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 23:44:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 23:44:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 23:44:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 23:44:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 23:44:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 23:44:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 23:44:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 23:44:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-11-20 23:44:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-11-20 23:44:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-11-20 23:44:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-11-20 23:44:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-20 23:44:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-20 23:44:45,273 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-11-20 23:44:45,273 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-11-20 23:44:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 23:44:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 23:44:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 23:44:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 23:44:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 23:44:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 23:44:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 23:44:45,274 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 23:44:45,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:44:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-11-20 23:44:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-11-20 23:44:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-11-20 23:44:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-11-20 23:44:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 23:44:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 23:44:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 23:44:45,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 23:44:45,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 23:44:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 23:44:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-11-20 23:44:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-11-20 23:44:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-11-20 23:44:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-11-20 23:44:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-20 23:44:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-20 23:44:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-11-20 23:44:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-11-20 23:44:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-11-20 23:44:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-11-20 23:44:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-11-20 23:44:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-11-20 23:44:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-11-20 23:44:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-11-20 23:44:45,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 23:44:45,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 23:44:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-11-20 23:44:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-11-20 23:44:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-20 23:44:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-20 23:44:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-11-20 23:44:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-11-20 23:44:45,278 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 23:44:45,278 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 23:44:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:44:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 23:44:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 23:44:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-11-20 23:44:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-11-20 23:44:45,279 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-20 23:44:45,279 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-20 23:44:46,353 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:44:46,366 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:45:01,583 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 23:58:10,700 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:58:21,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:58:21,670 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-20 23:58:21,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:21 BoogieIcfgContainer [2021-11-20 23:58:21,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:58:21,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:58:21,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:58:21,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:58:21,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:44:39" (1/3) ... [2021-11-20 23:58:21,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f19bc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:21, skipping insertion in model container [2021-11-20 23:58:21,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:44:44" (2/3) ... [2021-11-20 23:58:21,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f19bc02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:58:21, skipping insertion in model container [2021-11-20 23:58:21,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:58:21" (3/3) ... [2021-11-20 23:58:21,687 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-20 23:58:21,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:58:21,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 23:58:21,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:58:21,790 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 [2021-11-20 23:58:21,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 23:58:21,881 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) [2021-11-20 23:58:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 23:58:21,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:58:21,897 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] [2021-11-20 23:58:21,898 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] === [2021-11-20 23:58:21,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:58:21,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1965154338, now seen corresponding path program 1 times [2021-11-20 23:58:21,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:58:21,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543233156] [2021-11-20 23:58:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:58:21,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:58:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:58:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-20 23:58:23,850 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:58:23,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543233156] [2021-11-20 23:58:23,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543233156] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:58:23,851 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:58:23,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:58:23,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009364168] [2021-11-20 23:58:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:58:23,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:58:23,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:58:23,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:58:23,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:58:23,897 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) [2021-11-20 23:58:26,098 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:31,549 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:58:32,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:58:34,021 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:35,193 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:35,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:58:35,359 INFO L93 Difference]: Finished difference Result 4192 states and 6190 transitions. [2021-11-20 23:58:35,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:58:35,362 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 [2021-11-20 23:58:35,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:58:35,413 INFO L225 Difference]: With dead ends: 4192 [2021-11-20 23:58:35,413 INFO L226 Difference]: Without dead ends: 2076 [2021-11-20 23:58:35,440 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 [2021-11-20 23:58:35,444 INFO L933 BasicCegarLoop]: 2739 mSDtfsCounter, 3071 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s 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, 11.0s IncrementalHoareTripleChecker+Time [2021-11-20 23:58:35,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3073 Valid, 5478 Invalid, 716 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 715 Invalid, 1 Unknown, 0 Unchecked, 11.0s Time] [2021-11-20 23:58:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2076 states. [2021-11-20 23:58:35,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2076 to 2076. [2021-11-20 23:58:35,750 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) [2021-11-20 23:58:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 3045 transitions. [2021-11-20 23:58:35,787 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 3045 transitions. Word has length 58 [2021-11-20 23:58:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:58:35,789 INFO L470 AbstractCegarLoop]: Abstraction has 2076 states and 3045 transitions. [2021-11-20 23:58:35,790 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) [2021-11-20 23:58:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 3045 transitions. [2021-11-20 23:58:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-20 23:58:35,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:58:35,804 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] [2021-11-20 23:58:35,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:58:35,805 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] === [2021-11-20 23:58:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:58:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2029876898, now seen corresponding path program 1 times [2021-11-20 23:58:35,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:58:35,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155792202] [2021-11-20 23:58:35,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:58:35,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:58:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:58:36,990 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-11-20 23:58:36,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:58:36,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155792202] [2021-11-20 23:58:36,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155792202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:58:36,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:58:36,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:58:36,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531037915] [2021-11-20 23:58:36,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:58:36,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:58:36,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:58:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:58:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:58:36,993 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) [2021-11-20 23:58:39,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:45,973 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:47,338 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 23:58:47,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:58:47,489 INFO L93 Difference]: Finished difference Result 2078 states and 3048 transitions. [2021-11-20 23:58:47,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:58:47,490 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 [2021-11-20 23:58:47,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:58:47,492 INFO L225 Difference]: With dead ends: 2078 [2021-11-20 23:58:47,492 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 23:58:47,505 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 [2021-11-20 23:58:47,507 INFO L933 BasicCegarLoop]: 2694 mSDtfsCounter, 3018 mSDsluCounter, 3041 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s 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, 10.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:58:47,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3018 Valid, 5386 Invalid, 701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 700 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2021-11-20 23:58:47,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 23:58:47,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 23:58:47,509 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) [2021-11-20 23:58:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 23:58:47,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2021-11-20 23:58:47,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:58:47,517 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 23:58:47,517 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) [2021-11-20 23:58:47,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 23:58:47,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 23:58:47,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-20 23:58:47,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-20 23:58:47,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:58:47,525 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.