./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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/config/AutomizerReach.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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:47:47,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:47:47,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:47:48,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:47:48,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:47:48,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:47:48,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:47:48,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:47:48,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:47:48,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:47:48,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:47:48,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:47:48,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:47:48,031 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:47:48,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:47:48,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:47:48,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:47:48,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:47:48,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:47:48,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:47:48,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:47:48,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:47:48,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:47:48,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:47:48,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:47:48,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:47:48,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:47:48,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:47:48,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:47:48,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:47:48,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:47:48,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:47:48,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:47:48,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:47:48,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:47:48,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:47:48,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:47:48,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:47:48,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:47:48,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:47:48,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:47:48,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-07 01:47:48,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:47:48,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:47:48,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:47:48,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:47:48,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:47:48,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:47:48,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:47:48,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:47:48,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:47:48,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:47:48,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:47:48,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:47:48,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:47:48,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:47:48,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:47:48,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:47:48,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:47:48,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:47:48,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:47:48,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0213066b04433b5115818ca8b9ef0dddadf4a1205d07a35e490e0ff46aebca6c [2021-12-07 01:47:48,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:47:48,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:47:48,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:47:48,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:47:48,295 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:47:48,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-07 01:47:48,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/data/5d6757b07/8f4bd34f9b8a4d34b80d2fa86083aadc/FLAG44cf40c18 [2021-12-07 01:47:49,025 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:47:49,025 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-07 01:47:49,056 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/data/5d6757b07/8f4bd34f9b8a4d34b80d2fa86083aadc/FLAG44cf40c18 [2021-12-07 01:47:49,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/data/5d6757b07/8f4bd34f9b8a4d34b80d2fa86083aadc [2021-12-07 01:47:49,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:47:49,399 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:47:49,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:47:49,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:47:49,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:47:49,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:49" (1/1) ... [2021-12-07 01:47:49,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cf2d201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:49, skipping insertion in model container [2021-12-07 01:47:49,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:47:49" (1/1) ... [2021-12-07 01:47:49,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:47:49,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:47:52,516 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,519 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,520 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:47:52,606 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:47:52,911 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,911 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,912 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,912 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_3e0daed8-c4df-47f9-bc5d-87bb0f305841/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] [2021-12-07 01:47:52,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:47:53,129 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:47:53,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53 WrapperNode [2021-12-07 01:47:53,130 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:47:53,131 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:47:53,131 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:47:53,131 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:47:53,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,389 INFO L137 Inliner]: procedures = 520, calls = 3615, calls flagged for inlining = 326, calls inlined = 303, statements flattened = 8747 [2021-12-07 01:47:53,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:47:53,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:47:53,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:47:53,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:47:53,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:47:53,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:47:53,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:47:53,630 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:47:53,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (1/1) ... [2021-12-07 01:47:53,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:47:53,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:47:53,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:47:53,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0daed8-c4df-47f9-bc5d-87bb0f305841/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:47:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-12-07 01:47:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-07 01:47:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-07 01:47:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-07 01:47:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-07 01:47:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-12-07 01:47:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-12-07 01:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-12-07 01:47:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-12-07 01:47:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-12-07 01:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-12-07 01:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-07 01:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-07 01:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-12-07 01:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-12-07 01:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-07 01:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-07 01:47:53,714 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-07 01:47:53,714 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-07 01:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-07 01:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-07 01:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-07 01:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-07 01:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-12-07 01:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-12-07 01:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-07 01:47:53,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-07 01:47:53,715 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-07 01:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-07 01:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-12-07 01:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-12-07 01:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-07 01:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-07 01:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-12-07 01:47:53,716 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-12-07 01:47:53,716 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-07 01:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-07 01:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-07 01:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-07 01:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-07 01:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-07 01:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-07 01:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-12-07 01:47:53,717 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-12-07 01:47:53,717 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-12-07 01:47:53,718 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-12-07 01:47:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-07 01:47:53,718 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-12-07 01:47:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-07 01:47:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-12-07 01:47:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-07 01:47:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-07 01:47:53,719 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-07 01:47:53,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-07 01:47:53,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-07 01:47:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-07 01:47:53,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-07 01:47:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-07 01:47:53,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-07 01:47:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-12-07 01:47:53,720 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-12-07 01:47:53,720 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-12-07 01:47:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-12-07 01:47:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-07 01:47:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-07 01:47:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-07 01:47:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-07 01:47:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-07 01:47:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-07 01:47:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-12-07 01:47:53,721 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-12-07 01:47:53,721 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-12-07 01:47:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-12-07 01:47:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-07 01:47:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-07 01:47:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-07 01:47:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-07 01:47:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-07 01:47:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-07 01:47:53,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-07 01:47:53,722 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-12-07 01:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-07 01:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-12-07 01:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-07 01:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-07 01:47:53,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-07 01:47:53,723 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-07 01:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-07 01:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-07 01:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-07 01:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-07 01:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-12-07 01:47:53,724 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-12-07 01:47:53,724 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-12-07 01:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-12-07 01:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-12-07 01:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-12-07 01:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-07 01:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-07 01:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-07 01:47:53,725 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-07 01:47:53,725 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-12-07 01:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-12-07 01:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-07 01:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-07 01:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-07 01:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-07 01:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-12-07 01:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-12-07 01:47:53,726 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-12-07 01:47:53,726 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-07 01:47:53,727 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-07 01:47:53,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-12-07 01:47:53,728 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 01:47:53,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-07 01:47:53,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-07 01:47:53,729 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-07 01:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-07 01:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-07 01:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-07 01:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-07 01:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-07 01:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-07 01:47:53,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-07 01:47:53,730 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-12-07 01:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-12-07 01:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-07 01:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-07 01:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-07 01:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-07 01:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-12-07 01:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-12-07 01:47:53,731 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-07 01:47:53,731 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-07 01:47:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-12-07 01:47:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-12-07 01:47:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-12-07 01:47:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-12-07 01:47:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-07 01:47:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-12-07 01:47:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-12-07 01:47:53,732 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-07 01:47:53,732 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-12-07 01:47:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-12-07 01:47:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-07 01:47:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-07 01:47:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-07 01:47:53,733 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-12-07 01:47:53,733 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-07 01:47:53,734 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-12-07 01:47:53,734 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-12-07 01:47:53,735 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-12-07 01:47:53,735 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-12-07 01:47:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-07 01:47:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-07 01:47:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-07 01:47:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-07 01:47:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-07 01:47:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-07 01:47:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-12-07 01:47:53,736 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-12-07 01:47:53,736 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-12-07 01:47:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-12-07 01:47:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-07 01:47:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-07 01:47:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-12-07 01:47:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-12-07 01:47:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-12-07 01:47:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-12-07 01:47:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-12-07 01:47:53,737 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-12-07 01:47:53,737 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-12-07 01:47:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-12-07 01:47:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-07 01:47:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-07 01:47:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-12-07 01:47:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-12-07 01:47:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-07 01:47:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-07 01:47:53,738 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-12-07 01:47:53,738 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-12-07 01:47:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-07 01:47:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-07 01:47:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:47:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-07 01:47:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-07 01:47:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-12-07 01:47:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-12-07 01:47:53,739 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-12-07 01:47:53,739 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-12-07 01:47:54,432 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:47:54,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:47:55,141 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-07 02:01:37,364 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-07 02:01:37,433 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 02:01:37,457 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 02:01:37,457 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-07 02:01:37,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:01:37 BoogieIcfgContainer [2021-12-07 02:01:37,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 02:01:37,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 02:01:37,462 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 02:01:37,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 02:01:37,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:47:49" (1/3) ... [2021-12-07 02:01:37,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d537fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:01:37, skipping insertion in model container [2021-12-07 02:01:37,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:47:53" (2/3) ... [2021-12-07 02:01:37,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d537fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:01:37, skipping insertion in model container [2021-12-07 02:01:37,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:01:37" (3/3) ... [2021-12-07 02:01:37,468 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-via-via-velocity.cil.i [2021-12-07 02:01:37,473 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 02:01:37,473 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-07 02:01:37,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 02:01:37,522 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-07 02:01:37,522 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-07 02:01:37,579 INFO L276 IsEmpty]: Start isEmpty. Operand has 3095 states, 2123 states have (on average 1.2948657560056525) internal successors, (2749), 2184 states have internal predecessors, (2749), 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) [2021-12-07 02:01:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-07 02:01:37,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 02:01:37,592 INFO L514 BasicCegarLoop]: trace histogram [16, 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] [2021-12-07 02:01:37,592 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] === [2021-12-07 02:01:37,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 02:01:37,596 INFO L85 PathProgramCache]: Analyzing trace with hash -213484464, now seen corresponding path program 1 times [2021-12-07 02:01:37,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 02:01:37,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666434609] [2021-12-07 02:01:37,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 02:01:37,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 02:01:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 02:01:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 02:01:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 02:01:39,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 02:01:39,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 02:01:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 02:01:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 02:01:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 02:01:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 02:01:39,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 02:01:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 02:01:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 02:01:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 02:01:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-07 02:01:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 02:01:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:01:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-07 02:01:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-07 02:01:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:01:39,588 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-07 02:01:39,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 02:01:39,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666434609] [2021-12-07 02:01:39,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666434609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 02:01:39,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 02:01:39,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 02:01:39,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469273625] [2021-12-07 02:01:39,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 02:01:39,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 02:01:39,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 02:01:39,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 02:01:39,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 02:01:39,632 INFO L87 Difference]: Start difference. First operand has 3095 states, 2123 states have (on average 1.2948657560056525) internal successors, (2749), 2184 states have internal predecessors, (2749), 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 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-07 02:01:41,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 02:01:44,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 02:01:58,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 02:01:58,775 INFO L93 Difference]: Finished difference Result 9318 states and 13536 transitions. [2021-12-07 02:01:58,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 02:01:58,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 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 188 [2021-12-07 02:01:58,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 02:01:58,845 INFO L225 Difference]: With dead ends: 9318 [2021-12-07 02:01:58,845 INFO L226 Difference]: Without dead ends: 6244 [2021-12-07 02:01:58,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-07 02:01:58,872 INFO L933 BasicCegarLoop]: 4587 mSDtfsCounter, 5672 mSDsluCounter, 4705 mSDsCounter, 0 mSdLazyCounter, 2972 mSolverCounterSat, 2623 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6437 SdHoareTripleChecker+Valid, 9292 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 2972 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2021-12-07 02:01:58,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6437 Valid, 9292 Invalid, 5597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2623 Valid, 2972 Invalid, 2 Unknown, 0 Unchecked, 18.5s Time] [2021-12-07 02:01:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2021-12-07 02:01:59,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 5984. [2021-12-07 02:01:59,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5984 states, 4099 states have (on average 1.2854354720663577) internal successors, (5269), 4217 states have internal predecessors, (5269), 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) [2021-12-07 02:01:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5984 states to 5984 states and 8509 transitions. [2021-12-07 02:01:59,248 INFO L78 Accepts]: Start accepts. Automaton has 5984 states and 8509 transitions. Word has length 188 [2021-12-07 02:01:59,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 02:01:59,249 INFO L470 AbstractCegarLoop]: Abstraction has 5984 states and 8509 transitions. [2021-12-07 02:01:59,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-07 02:01:59,249 INFO L276 IsEmpty]: Start isEmpty. Operand 5984 states and 8509 transitions. [2021-12-07 02:01:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2021-12-07 02:01:59,261 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 02:01:59,261 INFO L514 BasicCegarLoop]: trace histogram [16, 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 02:01:59,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 02:01:59,262 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] === [2021-12-07 02:01:59,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 02:01:59,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1417367501, now seen corresponding path program 1 times [2021-12-07 02:01:59,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 02:01:59,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611292221] [2021-12-07 02:01:59,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 02:01:59,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 02:01:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-07 02:02:00,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-07 02:02:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-07 02:02:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-07 02:02:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-07 02:02:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-07 02:02:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-07 02:02:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-07 02:02:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-07 02:02:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-07 02:02:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-07 02:02:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-07 02:02:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-07 02:02:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-07 02:02:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-07 02:02:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-07 02:02:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-07 02:02:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-07 02:02:00,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-07 02:02:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 02:02:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-12-07 02:02:00,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 02:02:00,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611292221] [2021-12-07 02:02:00,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611292221] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 02:02:00,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 02:02:00,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-07 02:02:00,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858964211] [2021-12-07 02:02:00,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 02:02:00,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-07 02:02:00,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 02:02:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-07 02:02:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-07 02:02:00,595 INFO L87 Difference]: Start difference. First operand 5984 states and 8509 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-12-07 02:02:02,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-07 02:02:05,066 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []