./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/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 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:41:34,066 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:41:34,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:41:34,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:41:34,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:41:34,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:41:34,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:41:34,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:41:34,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:41:34,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:41:34,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:41:34,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:41:34,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:41:34,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:41:34,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:41:34,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:41:34,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:41:34,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:41:34,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:41:34,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:41:34,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:41:34,164 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:41:34,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:41:34,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:41:34,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:41:34,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:41:34,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:41:34,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:41:34,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:41:34,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:41:34,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:41:34,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:41:34,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:41:34,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:41:34,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:41:34,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:41:34,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:41:34,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:41:34,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:41:34,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:41:34,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:41:34,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:41:34,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:41:34,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:41:34,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:41:34,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:41:34,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:41:34,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:41:34,243 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:41:34,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:41:34,244 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:41:34,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:41:34,244 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:41:34,244 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:41:34,245 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:41:34,245 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:41:34,245 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:41:34,245 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:41:34,246 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:41:34,246 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:41:34,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:41:34,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:41:34,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:41:34,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:41:34,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:41:34,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:41:34,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:41:34,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:41:34,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:41:34,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:41:34,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:41:34,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:41:34,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:41:34,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:41:34,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:41:34,250 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:41:34,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:41:34,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:41:34,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:41:34,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:41:34,251 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c [2021-11-25 18:41:34,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:41:34,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:41:34,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:41:34,566 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:41:34,567 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:41:34,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 18:41:34,644 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/data/54ec7082f/6b01870fed1c4b89a0b7a4e35edab3dd/FLAG7edc23ced [2021-11-25 18:41:35,673 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:41:35,673 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 18:41:35,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/data/54ec7082f/6b01870fed1c4b89a0b7a4e35edab3dd/FLAG7edc23ced [2021-11-25 18:41:36,050 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/data/54ec7082f/6b01870fed1c4b89a0b7a4e35edab3dd [2021-11-25 18:41:36,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:41:36,054 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:41:36,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:41:36,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:41:36,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:41:36,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:41:36" (1/1) ... [2021-11-25 18:41:36,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b69f55c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:36, skipping insertion in model container [2021-11-25 18:41:36,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:41:36" (1/1) ... [2021-11-25 18:41:36,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:41:36,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:41:40,462 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436411,436424] [2021-11-25 18:41:40,465 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436558,436571] [2021-11-25 18:41:40,466 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436697,436710] [2021-11-25 18:41:40,466 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436855,436868] [2021-11-25 18:41:40,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:41:40,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:41:41,187 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436411,436424] [2021-11-25 18:41:41,188 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436558,436571] [2021-11-25 18:41:41,188 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436697,436710] [2021-11-25 18:41:41,188 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_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i[436855,436868] [2021-11-25 18:41:41,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:41:41,553 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:41:41,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41 WrapperNode [2021-11-25 18:41:41,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:41:41,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:41:41,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:41:41,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:41:41,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:41,747 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,125 INFO L137 Inliner]: procedures = 520, calls = 3615, calls flagged for inlining = 326, calls inlined = 303, statements flattened = 8747 [2021-11-25 18:41:42,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:41:42,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:41:42,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:41:42,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:41:42,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:41:42,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:41:42,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:41:42,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:41:42,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (1/1) ... [2021-11-25 18:41:42,560 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:41:42,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:41:42,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:41:42,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504dcf2c-3fed-4ec3-98ee-a01db0af41e7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:41:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:41:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:41:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:41:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:41:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:41:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:41:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 18:41:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 18:41:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:41:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:41:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-25 18:41:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-25 18:41:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:41:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:41:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:41:42,728 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:41:42,728 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-11-25 18:41:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-11-25 18:41:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-11-25 18:41:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-11-25 18:41:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-11-25 18:41:42,729 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-11-25 18:41:42,729 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:41:42,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:41:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-11-25 18:41:42,730 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-11-25 18:41:42,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:41:42,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:41:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:41:42,731 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:41:42,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:41:42,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:41:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 18:41:42,732 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 18:41:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-11-25 18:41:42,732 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-11-25 18:41:42,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:41:42,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:41:42,733 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:41:42,733 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:41:42,733 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-11-25 18:41:42,734 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-11-25 18:41:42,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:41:42,735 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 18:41:42,736 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 18:41:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-11-25 18:41:42,736 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-11-25 18:41:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:41:42,736 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:41:42,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 18:41:42,737 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 18:41:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:41:42,737 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:41:42,737 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:41:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-11-25 18:41:42,738 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-11-25 18:41:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-11-25 18:41:42,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-11-25 18:41:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:41:42,738 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-11-25 18:41:42,739 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-11-25 18:41:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:41:42,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:41:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-11-25 18:41:42,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-11-25 18:41:42,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:41:42,740 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:41:42,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:41:42,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:41:42,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:41:42,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:41:42,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:41:42,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:41:42,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:41:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-25 18:41:42,742 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-25 18:41:42,742 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-11-25 18:41:42,742 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-11-25 18:41:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-11-25 18:41:42,743 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-11-25 18:41:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-25 18:41:42,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-25 18:41:42,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:41:42,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:41:42,744 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 18:41:42,745 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 18:41:42,745 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-11-25 18:41:42,746 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-11-25 18:41:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-11-25 18:41:42,746 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-11-25 18:41:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:41:42,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:41:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:41:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:41:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:41:42,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 18:41:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 18:41:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-11-25 18:41:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-11-25 18:41:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:41:42,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:41:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 18:41:42,749 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 18:41:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:41:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:41:42,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:41:42,753 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:41:42,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:41:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:41:42,754 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:41:42,755 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:41:42,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:41:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 18:41:42,756 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 18:41:42,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:41:42,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:41:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-11-25 18:41:42,763 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-11-25 18:41:42,763 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-11-25 18:41:42,763 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-11-25 18:41:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-11-25 18:41:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-11-25 18:41:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 18:41:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 18:41:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 18:41:42,764 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 18:41:42,764 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-11-25 18:41:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-11-25 18:41:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:41:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:41:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:41:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:41:42,765 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-11-25 18:41:42,765 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-11-25 18:41:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-11-25 18:41:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-11-25 18:41:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-25 18:41:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-25 18:41:42,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-11-25 18:41:42,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-11-25 18:41:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-11-25 18:41:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-11-25 18:41:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:41:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:41:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:41:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:41:42,767 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-25 18:41:42,767 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-25 18:41:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-25 18:41:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-25 18:41:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:41:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:41:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-11-25 18:41:42,768 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-11-25 18:41:42,768 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-11-25 18:41:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-11-25 18:41:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:41:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-11-25 18:41:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-11-25 18:41:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:41:42,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:41:42,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:41:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-11-25 18:41:42,770 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-11-25 18:41:42,770 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 18:41:42,770 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 18:41:42,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:41:42,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:41:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-11-25 18:41:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-11-25 18:41:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 18:41:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 18:41:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-11-25 18:41:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-11-25 18:41:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 18:41:42,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 18:41:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:41:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:41:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-25 18:41:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-25 18:41:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:41:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:41:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 18:41:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 18:41:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 18:41:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 18:41:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 18:41:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 18:41:42,773 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:41:42,773 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:41:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 18:41:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 18:41:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:41:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-11-25 18:41:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-11-25 18:41:42,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:41:42,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:41:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-11-25 18:41:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-11-25 18:41:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-25 18:41:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-25 18:41:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:41:42,775 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-11-25 18:41:42,775 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-11-25 18:41:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 18:41:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 18:41:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-11-25 18:41:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-11-25 18:41:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:41:42,776 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-11-25 18:41:42,776 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-11-25 18:41:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:41:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:41:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 18:41:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 18:41:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-11-25 18:41:42,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-11-25 18:41:42,777 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 18:41:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 18:41:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:41:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:41:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:41:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:41:42,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:41:42,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:41:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-11-25 18:41:42,779 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-11-25 18:41:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-11-25 18:41:42,779 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-11-25 18:41:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 18:41:42,779 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 18:41:42,779 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-11-25 18:41:42,780 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-11-25 18:41:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:41:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:41:42,784 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:41:42,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:41:42,785 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:41:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:41:42,785 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:41:42,785 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:41:42,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:41:42,786 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-11-25 18:41:42,786 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-11-25 18:41:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-11-25 18:41:42,787 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-11-25 18:41:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 18:41:42,787 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 18:41:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:41:42,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:41:42,787 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:41:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:41:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-11-25 18:41:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-11-25 18:41:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-11-25 18:41:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-11-25 18:41:42,788 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-25 18:41:42,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-25 18:41:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-11-25 18:41:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-11-25 18:41:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-11-25 18:41:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-11-25 18:41:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-11-25 18:41:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-11-25 18:41:42,789 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-11-25 18:41:42,789 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-11-25 18:41:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:41:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:41:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-11-25 18:41:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-11-25 18:41:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-25 18:41:42,790 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-25 18:41:42,790 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-11-25 18:41:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-11-25 18:41:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 18:41:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 18:41:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:41:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:41:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:41:42,791 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-11-25 18:41:42,791 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-11-25 18:41:42,792 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-25 18:41:42,792 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-25 18:41:43,875 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:41:43,879 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:41:45,074 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:55:21,765 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:55:21,872 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:55:29,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:55:29,914 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 18:55:29,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:55:29 BoogieIcfgContainer [2021-11-25 18:55:29,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:55:29,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:55:29,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:55:29,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:55:29,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:41:36" (1/3) ... [2021-11-25 18:55:29,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65eb5245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:55:29, skipping insertion in model container [2021-11-25 18:55:29,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:41:41" (2/3) ... [2021-11-25 18:55:29,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65eb5245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:55:29, skipping insertion in model container [2021-11-25 18:55:29,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:55:29" (3/3) ... [2021-11-25 18:55:29,930 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-25 18:55:29,935 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:55:29,935 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:55:30,009 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:55:30,022 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 18:55:30,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:55:30,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 2322 states, 1350 states have (on average 1.3096296296296297) internal successors, (1768), 1411 states have internal predecessors, (1768), 840 states have call successors, (840), 133 states have call predecessors, (840), 132 states have return successors, (832), 811 states have call predecessors, (832), 832 states have call successors, (832) [2021-11-25 18:55:30,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-25 18:55:30,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:30,104 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:30,105 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 18:55:30,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:30,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1895906629, now seen corresponding path program 1 times [2021-11-25 18:55:30,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:30,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017721895] [2021-11-25 18:55:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:30,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:32,650 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:55:32,650 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:32,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017721895] [2021-11-25 18:55:32,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017721895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:32,652 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:32,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:55:32,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152891461] [2021-11-25 18:55:32,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:32,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:55:32,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:32,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:55:32,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:32,704 INFO L87 Difference]: Start difference. First operand has 2322 states, 1350 states have (on average 1.3096296296296297) internal successors, (1768), 1411 states have internal predecessors, (1768), 840 states have call successors, (840), 133 states have call predecessors, (840), 132 states have return successors, (832), 811 states have call predecessors, (832), 832 states have call successors, (832) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:55:34,909 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:42,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:42,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:42,650 INFO L93 Difference]: Finished difference Result 6810 states and 10166 transitions. [2021-11-25 18:55:42,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:55:42,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 166 [2021-11-25 18:55:42,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:42,730 INFO L225 Difference]: With dead ends: 6810 [2021-11-25 18:55:42,730 INFO L226 Difference]: Without dead ends: 4506 [2021-11-25 18:55:42,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:42,764 INFO L933 BasicCegarLoop]: 3771 mSDtfsCounter, 3337 mSDsluCounter, 3351 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3337 SdHoareTripleChecker+Valid, 6684 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:42,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3337 Valid, 6684 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 899 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-11-25 18:55:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4506 states. [2021-11-25 18:55:43,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4506 to 4504. [2021-11-25 18:55:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4504 states, 2619 states have (on average 1.3073692248949982) internal successors, (3424), 2737 states have internal predecessors, (3424), 1621 states have call successors, (1621), 263 states have call predecessors, (1621), 262 states have return successors, (1619), 1577 states have call predecessors, (1619), 1619 states have call successors, (1619) [2021-11-25 18:55:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4504 states to 4504 states and 6664 transitions. [2021-11-25 18:55:43,251 INFO L78 Accepts]: Start accepts. Automaton has 4504 states and 6664 transitions. Word has length 166 [2021-11-25 18:55:43,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:43,256 INFO L470 AbstractCegarLoop]: Abstraction has 4504 states and 6664 transitions. [2021-11-25 18:55:43,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-25 18:55:43,261 INFO L276 IsEmpty]: Start isEmpty. Operand 4504 states and 6664 transitions. [2021-11-25 18:55:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-25 18:55:43,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:43,283 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:55:43,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:55:43,283 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 18:55:43,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1076689019, now seen corresponding path program 1 times [2021-11-25 18:55:43,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:43,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226556697] [2021-11-25 18:55:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:43,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:44,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:55:45,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:45,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226556697] [2021-11-25 18:55:45,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226556697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:45,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:45,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:55:45,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358286461] [2021-11-25 18:55:45,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:45,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:55:45,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:55:45,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:45,076 INFO L87 Difference]: Start difference. First operand 4504 states and 6664 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-25 18:55:47,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []