./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-atheros-atl1c-atl1c.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI --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 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:10:59,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:10:59,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:10:59,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:10:59,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:10:59,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:10:59,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:10:59,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:10:59,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:10:59,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:10:59,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:10:59,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:10:59,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:10:59,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:10:59,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:10:59,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:10:59,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:10:59,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:10:59,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:10:59,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:10:59,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:10:59,876 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:10:59,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:10:59,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:10:59,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:10:59,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:10:59,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:10:59,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:10:59,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:10:59,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:10:59,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:10:59,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:10:59,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:10:59,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:10:59,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:10:59,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:10:59,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:10:59,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:10:59,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:10:59,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:10:59,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:10:59,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:10:59,951 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:10:59,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:10:59,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:10:59,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:10:59,953 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:10:59,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:10:59,954 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:10:59,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:10:59,954 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:10:59,955 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:10:59,956 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:10:59,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:10:59,957 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:10:59,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:10:59,957 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:10:59,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:10:59,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:10:59,958 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:10:59,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:10:59,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:10:59,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:10:59,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:10:59,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:10:59,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:10:59,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:10:59,962 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:10:59,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:10:59,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:10:59,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:10:59,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:10:59,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:10:59,964 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:10:59,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:10:59,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:10:59,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:10:59,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:10:59,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:10:59,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:10:59,965 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 189c9c1835fba5722e0b94d8232e079a97aae7f53f40713e9106571ffb9cd9c4 [2022-11-03 02:11:00,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:11:00,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:11:00,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:11:00,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:11:00,405 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:11:00,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-03 02:11:00,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/data/dd0dc3209/a21eaf892ae040a0a56808be1fb2e042/FLAG637ba957e [2022-11-03 02:11:01,858 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:11:01,859 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-03 02:11:01,967 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/data/dd0dc3209/a21eaf892ae040a0a56808be1fb2e042/FLAG637ba957e [2022-11-03 02:11:02,007 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/data/dd0dc3209/a21eaf892ae040a0a56808be1fb2e042 [2022-11-03 02:11:02,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:11:02,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:11:02,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:02,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:11:02,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:11:02,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:02" (1/1) ... [2022-11-03 02:11:02,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14dd2c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:02, skipping insertion in model container [2022-11-03 02:11:02,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:11:02" (1/1) ... [2022-11-03 02:11:02,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:11:02,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:11:07,879 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-03 02:11:07,890 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-03 02:11:07,891 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-03 02:11:07,891 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-03 02:11:07,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:08,009 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:11:08,771 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484314,484327] [2022-11-03 02:11:08,772 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484461,484474] [2022-11-03 02:11:08,772 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484600,484613] [2022-11-03 02:11:08,773 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_e145aab9-a466-4d0b-b047-f7ff9ca85dec/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[484758,484771] [2022-11-03 02:11:08,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:11:09,181 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:11:09,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09 WrapperNode [2022-11-03 02:11:09,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:11:09,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:09,183 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:11:09,183 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:11:09,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:09,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:09,761 INFO L138 Inliner]: procedures = 581, calls = 3848, calls flagged for inlining = 356, calls inlined = 344, statements flattened = 10339 [2022-11-03 02:11:09,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:11:09,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:11:09,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:11:09,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:11:09,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:09,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:09,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:09,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,309 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:11:10,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:11:10,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:11:10,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:11:10,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (1/1) ... [2022-11-03 02:11:10,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:11:10,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:11:10,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:11:10,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e145aab9-a466-4d0b-b047-f7ff9ca85dec/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:11:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-03 02:11:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-03 02:11:10,602 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-03 02:11:10,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-03 02:11:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-03 02:11:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-03 02:11:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-03 02:11:10,603 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-03 02:11:10,603 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-03 02:11:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-03 02:11:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:11:10,604 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:11:10,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:11:10,605 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:11:10,605 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-03 02:11:10,606 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-03 02:11:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:11:10,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:11:10,606 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-03 02:11:10,607 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-03 02:11:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 02:11:10,607 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 02:11:10,607 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 02:11:10,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 02:11:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:11:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:11:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 02:11:10,609 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 02:11:10,609 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-03 02:11:10,609 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-03 02:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:11:10,610 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-03 02:11:10,610 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-03 02:11:10,610 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-03 02:11:10,611 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-03 02:11:10,611 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-03 02:11:10,611 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-03 02:11:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:11:10,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:11:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:11:10,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:11:10,613 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:11:10,614 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:11:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:11:10,615 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:11:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:11:10,615 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:11:10,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:11:10,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:11:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 02:11:10,616 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 02:11:10,616 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:11:10,617 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:11:10,617 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:11:10,617 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:11:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-03 02:11:10,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-03 02:11:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:11:10,618 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 02:11:10,618 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 02:11:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-03 02:11:10,619 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-03 02:11:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-03 02:11:10,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-03 02:11:10,619 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-03 02:11:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-03 02:11:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:11:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:11:10,620 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 02:11:10,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 02:11:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-03 02:11:10,621 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-03 02:11:10,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:11:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-03 02:11:10,622 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-03 02:11:10,622 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-03 02:11:10,623 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-03 02:11:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-03 02:11:10,623 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-03 02:11:10,623 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:11:10,623 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:11:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:11:10,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:11:10,625 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-03 02:11:10,626 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-03 02:11:10,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:11:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:11:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:11:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:11:10,627 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:11:10,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:11:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:11:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:11:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:11:10,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:11:10,628 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 02:11:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 02:11:10,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:11:10,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:11:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:11:10,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:11:10,630 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:11:10,631 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:11:10,632 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-03 02:11:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-03 02:11:10,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:11:10,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:11:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:11:10,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:11:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:11:10,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 02:11:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 02:11:10,639 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 02:11:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 02:11:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:11:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:11:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:11:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:11:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:11:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:11:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:11:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:11:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-03 02:11:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-03 02:11:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-03 02:11:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-03 02:11:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:11:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:11:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:11:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-03 02:11:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-03 02:11:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:11:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:11:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-03 02:11:10,649 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-03 02:11:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-03 02:11:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-03 02:11:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-03 02:11:10,650 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-03 02:11:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 02:11:10,651 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 02:11:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:11:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:11:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-03 02:11:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-03 02:11:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:11:10,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:11:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-03 02:11:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-03 02:11:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-03 02:11:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-03 02:11:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-03 02:11:10,653 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-03 02:11:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-03 02:11:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-03 02:11:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 02:11:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 02:11:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 02:11:10,654 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 02:11:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-03 02:11:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-03 02:11:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-03 02:11:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-03 02:11:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 02:11:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 02:11:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-03 02:11:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-03 02:11:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-03 02:11:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-03 02:11:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:11:10,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:11:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 02:11:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 02:11:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 02:11:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 02:11:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:11:10,657 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:11:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:11:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:11:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:11:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:11:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:11:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 02:11:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:11:10,658 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:11:10,658 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-03 02:11:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-03 02:11:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 02:11:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 02:11:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:11:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:11:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-03 02:11:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-03 02:11:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-03 02:11:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-03 02:11:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:11:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:11:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-03 02:11:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-03 02:11:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 02:11:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 02:11:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-03 02:11:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-03 02:11:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-03 02:11:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-03 02:11:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:11:10,661 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:11:10,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:11:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:11:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-03 02:11:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-03 02:11:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 02:11:10,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 02:11:10,662 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-03 02:11:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-03 02:11:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 02:11:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 02:11:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 02:11:10,663 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 02:11:10,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:11:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 02:11:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 02:11:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 02:11:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 02:11:10,664 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-03 02:11:10,664 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-03 02:11:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-03 02:11:10,665 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-03 02:11:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:11:10,665 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:11:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-03 02:11:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-03 02:11:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:11:10,671 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-03 02:11:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-03 02:11:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-03 02:11:10,672 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-03 02:11:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-03 02:11:10,672 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-03 02:11:10,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:11:10,673 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:11:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 02:11:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 02:11:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 02:11:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-03 02:11:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-03 02:11:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 02:11:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 02:11:10,677 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:11:10,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:11:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:11:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:11:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-03 02:11:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-03 02:11:10,678 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:11:10,678 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:11:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:11:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:11:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:11:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:11:10,679 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-03 02:11:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-03 02:11:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-03 02:11:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-03 02:11:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-03 02:11:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-03 02:11:10,680 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-03 02:11:10,680 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-03 02:11:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-03 02:11:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-03 02:11:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:11:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:11:10,681 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:11:10,681 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:11:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-03 02:11:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-03 02:11:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-03 02:11:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-03 02:11:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 02:11:10,682 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 02:11:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-03 02:11:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-03 02:11:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:11:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:11:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-03 02:11:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-03 02:11:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-03 02:11:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-03 02:11:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 02:11:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 02:11:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:11:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:11:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-03 02:11:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-03 02:11:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-03 02:11:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-03 02:11:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:11:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:11:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:11:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 02:11:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 02:11:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:11:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:11:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-03 02:11:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-03 02:11:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-03 02:11:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-03 02:11:10,687 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-03 02:11:10,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-03 02:11:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-03 02:11:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-03 02:11:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-03 02:11:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-03 02:11:10,688 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-03 02:11:10,688 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-03 02:11:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:11:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:11:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 02:11:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 02:11:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:11:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 02:11:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-03 02:11:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-03 02:11:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-03 02:11:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-03 02:11:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-03 02:11:10,690 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-03 02:11:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 02:11:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 02:11:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 02:11:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 02:11:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 02:11:10,691 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 02:11:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-03 02:11:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-03 02:11:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:11:10,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:11:10,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:11:12,588 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:11:12,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:11:13,294 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:11:25,204 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:11:25,946 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:11:30,361 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:11:30,363 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:11:30,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:11:30 BoogieIcfgContainer [2022-11-03 02:11:30,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:11:30,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:11:30,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:11:30,382 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:11:30,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:11:02" (1/3) ... [2022-11-03 02:11:30,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191da7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:11:30, skipping insertion in model container [2022-11-03 02:11:30,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:11:09" (2/3) ... [2022-11-03 02:11:30,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191da7ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:11:30, skipping insertion in model container [2022-11-03 02:11:30,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:11:30" (3/3) ... [2022-11-03 02:11:30,386 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-03 02:11:30,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:11:30,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 02:11:30,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:11:30,593 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ff4d89, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:11:30,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 02:11:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 3181 states, 1898 states have (on average 1.2665964172813489) internal successors, (2404), 1937 states have internal predecessors, (2404), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) [2022-11-03 02:11:30,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-03 02:11:30,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:30,664 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:30,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:30,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:30,675 INFO L85 PathProgramCache]: Analyzing trace with hash -2026099059, now seen corresponding path program 1 times [2022-11-03 02:11:30,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:30,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983752220] [2022-11-03 02:11:30,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:30,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-03 02:11:31,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:31,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983752220] [2022-11-03 02:11:31,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983752220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:31,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:31,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:11:31,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254960849] [2022-11-03 02:11:31,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:31,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:11:31,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:31,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:11:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:11:31,887 INFO L87 Difference]: Start difference. First operand has 3181 states, 1898 states have (on average 1.2665964172813489) internal successors, (2404), 1937 states have internal predecessors, (2404), 1121 states have call successors, (1121), 161 states have call predecessors, (1121), 160 states have return successors, (1112), 1103 states have call predecessors, (1112), 1112 states have call successors, (1112) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 02:11:34,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:39,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:40,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:40,788 INFO L93 Difference]: Finished difference Result 9386 states and 13698 transitions. [2022-11-03 02:11:40,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:11:40,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 193 [2022-11-03 02:11:40,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:40,873 INFO L225 Difference]: With dead ends: 9386 [2022-11-03 02:11:40,874 INFO L226 Difference]: Without dead ends: 6227 [2022-11-03 02:11:40,900 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:11:40,904 INFO L413 NwaCegarLoop]: 5171 mSDtfsCounter, 4493 mSDsluCounter, 4576 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 9234 SdHoareTripleChecker+Invalid, 1085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:40,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 9234 Invalid, 1085 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1074 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-03 02:11:40,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6227 states. [2022-11-03 02:11:41,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6227 to 6223. [2022-11-03 02:11:41,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6223 states, 3727 states have (on average 1.2632143815401127) internal successors, (4708), 3805 states have internal predecessors, (4708), 2178 states have call successors, (2178), 317 states have call predecessors, (2178), 316 states have return successors, (2175), 2156 states have call predecessors, (2175), 2175 states have call successors, (2175) [2022-11-03 02:11:41,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 9061 transitions. [2022-11-03 02:11:41,875 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 9061 transitions. Word has length 193 [2022-11-03 02:11:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:41,881 INFO L495 AbstractCegarLoop]: Abstraction has 6223 states and 9061 transitions. [2022-11-03 02:11:41,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-03 02:11:41,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 9061 transitions. [2022-11-03 02:11:41,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-03 02:11:41,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:41,904 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:41,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:11:41,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:41,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:41,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1762058100, now seen corresponding path program 1 times [2022-11-03 02:11:41,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:41,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299328815] [2022-11-03 02:11:41,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:41,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-03 02:11:42,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:42,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299328815] [2022-11-03 02:11:42,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299328815] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:42,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:42,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:11:42,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907949262] [2022-11-03 02:11:42,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:42,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:11:42,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:42,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:11:42,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:11:42,535 INFO L87 Difference]: Start difference. First operand 6223 states and 9061 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:11:44,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:47,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:52,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:11:53,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:11:53,096 INFO L93 Difference]: Finished difference Result 14890 states and 21628 transitions. [2022-11-03 02:11:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:11:53,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 208 [2022-11-03 02:11:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:11:53,188 INFO L225 Difference]: With dead ends: 14890 [2022-11-03 02:11:53,188 INFO L226 Difference]: Without dead ends: 8702 [2022-11-03 02:11:53,232 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:11:53,235 INFO L413 NwaCegarLoop]: 5151 mSDtfsCounter, 4006 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4006 SdHoareTripleChecker+Valid, 9184 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:11:53,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4006 Valid, 9184 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1115 Invalid, 1 Unknown, 0 Unchecked, 9.9s Time] [2022-11-03 02:11:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8702 states. [2022-11-03 02:11:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 8693. [2022-11-03 02:11:54,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8693 states, 5221 states have (on average 1.2585711549511587) internal successors, (6571), 5325 states have internal predecessors, (6571), 3006 states have call successors, (3006), 466 states have call predecessors, (3006), 464 states have return successors, (3003), 2973 states have call predecessors, (3003), 3003 states have call successors, (3003) [2022-11-03 02:11:54,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8693 states to 8693 states and 12580 transitions. [2022-11-03 02:11:54,390 INFO L78 Accepts]: Start accepts. Automaton has 8693 states and 12580 transitions. Word has length 208 [2022-11-03 02:11:54,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:11:54,391 INFO L495 AbstractCegarLoop]: Abstraction has 8693 states and 12580 transitions. [2022-11-03 02:11:54,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-03 02:11:54,392 INFO L276 IsEmpty]: Start isEmpty. Operand 8693 states and 12580 transitions. [2022-11-03 02:11:54,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-03 02:11:54,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:11:54,403 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:11:54,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:11:54,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:11:54,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:11:54,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1975983686, now seen corresponding path program 1 times [2022-11-03 02:11:54,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:11:54,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808779231] [2022-11-03 02:11:54,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:11:54,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:11:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:11:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-03 02:11:54,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:11:54,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808779231] [2022-11-03 02:11:54,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808779231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:11:54,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:11:54,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:11:54,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76656364] [2022-11-03 02:11:54,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:11:54,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:11:54,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:11:54,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:11:54,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:11:54,951 INFO L87 Difference]: Start difference. First operand 8693 states and 12580 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:11:57,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:12:03,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:12:04,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:12:04,439 INFO L93 Difference]: Finished difference Result 23104 states and 33446 transitions. [2022-11-03 02:12:04,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:12:04,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 221 [2022-11-03 02:12:04,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:12:04,588 INFO L225 Difference]: With dead ends: 23104 [2022-11-03 02:12:04,589 INFO L226 Difference]: Without dead ends: 14446 [2022-11-03 02:12:04,641 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:12:04,646 INFO L413 NwaCegarLoop]: 5371 mSDtfsCounter, 4450 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4450 SdHoareTripleChecker+Valid, 9424 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:12:04,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4450 Valid, 9424 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1133 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-03 02:12:04,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14446 states. [2022-11-03 02:12:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14446 to 14433. [2022-11-03 02:12:05,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14433 states, 8668 states have (on average 1.2568066451315183) internal successors, (10894), 8850 states have internal predecessors, (10894), 4993 states have call successors, (4993), 773 states have call predecessors, (4993), 770 states have return successors, (4990), 4931 states have call predecessors, (4990), 4990 states have call successors, (4990) [2022-11-03 02:12:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14433 states to 14433 states and 20877 transitions. [2022-11-03 02:12:06,077 INFO L78 Accepts]: Start accepts. Automaton has 14433 states and 20877 transitions. Word has length 221 [2022-11-03 02:12:06,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:12:06,079 INFO L495 AbstractCegarLoop]: Abstraction has 14433 states and 20877 transitions. [2022-11-03 02:12:06,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:12:06,080 INFO L276 IsEmpty]: Start isEmpty. Operand 14433 states and 20877 transitions. [2022-11-03 02:12:06,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-11-03 02:12:06,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:12:06,092 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:12:06,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:12:06,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:12:06,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:12:06,094 INFO L85 PathProgramCache]: Analyzing trace with hash 92259514, now seen corresponding path program 1 times [2022-11-03 02:12:06,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:12:06,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355868689] [2022-11-03 02:12:06,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:12:06,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:12:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:22,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1164 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1161 trivial. 0 not checked. [2022-11-03 02:19:22,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:22,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355868689] [2022-11-03 02:19:22,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355868689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:22,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:22,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:22,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011051701] [2022-11-03 02:19:22,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:22,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:22,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:22,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:22,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:22,735 INFO L87 Difference]: Start difference. First operand 14433 states and 20877 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:19:26,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:29,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:31,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:32,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:32,111 INFO L93 Difference]: Finished difference Result 36448 states and 52507 transitions. [2022-11-03 02:19:32,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:32,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 225 [2022-11-03 02:19:32,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:32,234 INFO L225 Difference]: With dead ends: 36448 [2022-11-03 02:19:32,234 INFO L226 Difference]: Without dead ends: 22050 [2022-11-03 02:19:32,297 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:19:32,298 INFO L413 NwaCegarLoop]: 4885 mSDtfsCounter, 3333 mSDsluCounter, 4498 mSDsCounter, 0 mSdLazyCounter, 1094 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 8903 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1094 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:32,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3333 Valid, 8903 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1094 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-03 02:19:32,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22050 states. [2022-11-03 02:19:33,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22050 to 22035. [2022-11-03 02:19:33,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22035 states, 13176 states have (on average 1.2502276867030966) internal successors, (16473), 13467 states have internal predecessors, (16473), 7585 states have call successors, (7585), 1281 states have call predecessors, (7585), 1272 states have return successors, (7586), 7471 states have call predecessors, (7586), 7582 states have call successors, (7586) [2022-11-03 02:19:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22035 states to 22035 states and 31644 transitions. [2022-11-03 02:19:33,991 INFO L78 Accepts]: Start accepts. Automaton has 22035 states and 31644 transitions. Word has length 225 [2022-11-03 02:19:33,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:33,991 INFO L495 AbstractCegarLoop]: Abstraction has 22035 states and 31644 transitions. [2022-11-03 02:19:33,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-03 02:19:33,992 INFO L276 IsEmpty]: Start isEmpty. Operand 22035 states and 31644 transitions. [2022-11-03 02:19:34,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-03 02:19:34,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:34,001 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:34,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:19:34,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:34,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:34,002 INFO L85 PathProgramCache]: Analyzing trace with hash 209886893, now seen corresponding path program 1 times [2022-11-03 02:19:34,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:34,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658970106] [2022-11-03 02:19:34,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:34,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-11-03 02:19:34,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:34,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658970106] [2022-11-03 02:19:34,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658970106] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:34,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:34,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:19:34,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432464487] [2022-11-03 02:19:34,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:34,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:19:34,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:34,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:19:34,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:19:34,835 INFO L87 Difference]: Start difference. First operand 22035 states and 31644 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:19:38,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:40,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:42,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:43,288 INFO L93 Difference]: Finished difference Result 22035 states and 31644 transitions. [2022-11-03 02:19:43,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:19:43,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 238 [2022-11-03 02:19:43,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:43,414 INFO L225 Difference]: With dead ends: 22035 [2022-11-03 02:19:43,414 INFO L226 Difference]: Without dead ends: 21964 [2022-11-03 02:19:43,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:19:43,519 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4538 mSDsluCounter, 4600 mSDsCounter, 0 mSdLazyCounter, 1054 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4538 SdHoareTripleChecker+Valid, 8148 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1054 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:43,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4538 Valid, 8148 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1054 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 02:19:43,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21964 states. [2022-11-03 02:19:45,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21964 to 21964. [2022-11-03 02:19:45,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21964 states, 13161 states have (on average 1.2486893093229998) internal successors, (16434), 13428 states have internal predecessors, (16434), 7534 states have call successors, (7534), 1272 states have call predecessors, (7534), 1268 states have return successors, (7538), 7448 states have call predecessors, (7538), 7534 states have call successors, (7538) [2022-11-03 02:19:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21964 states to 21964 states and 31506 transitions. [2022-11-03 02:19:45,316 INFO L78 Accepts]: Start accepts. Automaton has 21964 states and 31506 transitions. Word has length 238 [2022-11-03 02:19:45,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:45,317 INFO L495 AbstractCegarLoop]: Abstraction has 21964 states and 31506 transitions. [2022-11-03 02:19:45,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:19:45,318 INFO L276 IsEmpty]: Start isEmpty. Operand 21964 states and 31506 transitions. [2022-11-03 02:19:45,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-03 02:19:45,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:45,333 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:45,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:19:45,334 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:45,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:45,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1391097720, now seen corresponding path program 1 times [2022-11-03 02:19:45,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:45,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165132663] [2022-11-03 02:19:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:45,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:45,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2022-11-03 02:19:45,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:45,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165132663] [2022-11-03 02:19:45,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165132663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:45,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:45,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:45,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979847385] [2022-11-03 02:19:45,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:45,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:45,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:45,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:45,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:45,786 INFO L87 Difference]: Start difference. First operand 21964 states and 31506 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 02:19:49,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:53,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:19:54,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:54,211 INFO L93 Difference]: Finished difference Result 51355 states and 73727 transitions. [2022-11-03 02:19:54,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:54,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 257 [2022-11-03 02:19:54,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:54,381 INFO L225 Difference]: With dead ends: 51355 [2022-11-03 02:19:54,382 INFO L226 Difference]: Without dead ends: 31288 [2022-11-03 02:19:54,464 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:19:54,465 INFO L413 NwaCegarLoop]: 7497 mSDtfsCounter, 3981 mSDsluCounter, 4516 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3981 SdHoareTripleChecker+Valid, 11505 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:54,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3981 Valid, 11505 Invalid, 1559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1543 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-03 02:19:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31288 states. [2022-11-03 02:19:56,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31288 to 31282. [2022-11-03 02:19:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31282 states, 18761 states have (on average 1.247907894035499) internal successors, (23412), 19138 states have internal predecessors, (23412), 10706 states have call successors, (10706), 1820 states have call predecessors, (10706), 1814 states have return successors, (10712), 10582 states have call predecessors, (10712), 10706 states have call successors, (10712) [2022-11-03 02:19:56,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31282 states to 31282 states and 44830 transitions. [2022-11-03 02:19:56,644 INFO L78 Accepts]: Start accepts. Automaton has 31282 states and 44830 transitions. Word has length 257 [2022-11-03 02:19:56,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:56,645 INFO L495 AbstractCegarLoop]: Abstraction has 31282 states and 44830 transitions. [2022-11-03 02:19:56,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 02:19:56,645 INFO L276 IsEmpty]: Start isEmpty. Operand 31282 states and 44830 transitions. [2022-11-03 02:19:56,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-03 02:19:56,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:56,677 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:56,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:19:56,677 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1020413889, now seen corresponding path program 1 times [2022-11-03 02:19:56,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:19:56,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355968538] [2022-11-03 02:19:56,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:56,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:19:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:57,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1339 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-11-03 02:19:57,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:19:57,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355968538] [2022-11-03 02:19:57,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355968538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:57,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:19:57,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:19:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078417105] [2022-11-03 02:19:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:57,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:19:57,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:57,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:19:57,067 INFO L87 Difference]: Start difference. First operand 31282 states and 44830 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-03 02:20:01,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:04,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:06,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:08,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:11,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:12,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:12,419 INFO L93 Difference]: Finished difference Result 75178 states and 107830 transitions. [2022-11-03 02:20:12,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:20:12,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 282 [2022-11-03 02:20:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:12,617 INFO L225 Difference]: With dead ends: 75178 [2022-11-03 02:20:12,617 INFO L226 Difference]: Without dead ends: 45793 [2022-11-03 02:20:12,717 INFO L412 NwaCegarLoop]: 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 [2022-11-03 02:20:12,717 INFO L413 NwaCegarLoop]: 7984 mSDtfsCounter, 4427 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 1587 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4427 SdHoareTripleChecker+Valid, 12014 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1587 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:12,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4427 Valid, 12014 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1587 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2022-11-03 02:20:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45793 states. [2022-11-03 02:20:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45793 to 45779. [2022-11-03 02:20:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45779 states, 27456 states have (on average 1.2475961538461537) internal successors, (34254), 28017 states have internal predecessors, (34254), 15672 states have call successors, (15672), 2659 states have call predecessors, (15672), 2650 states have return successors, (15681), 15483 states have call predecessors, (15681), 15672 states have call successors, (15681) [2022-11-03 02:20:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45779 states to 45779 states and 65607 transitions. [2022-11-03 02:20:15,575 INFO L78 Accepts]: Start accepts. Automaton has 45779 states and 65607 transitions. Word has length 282 [2022-11-03 02:20:15,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:15,576 INFO L495 AbstractCegarLoop]: Abstraction has 45779 states and 65607 transitions. [2022-11-03 02:20:15,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-11-03 02:20:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 45779 states and 65607 transitions. [2022-11-03 02:20:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-03 02:20:15,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:15,621 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:15,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:20:15,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:15,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1959799550, now seen corresponding path program 1 times [2022-11-03 02:20:15,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:15,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335704979] [2022-11-03 02:20:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:15,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:20:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1452 trivial. 0 not checked. [2022-11-03 02:20:16,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:20:16,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335704979] [2022-11-03 02:20:16,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335704979] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:20:16,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:20:16,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:20:16,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796328524] [2022-11-03 02:20:16,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:20:16,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:20:16,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:20:16,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:20:16,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:20:16,343 INFO L87 Difference]: Start difference. First operand 45779 states and 65607 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:20:22,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:20:26,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:20:26,546 INFO L93 Difference]: Finished difference Result 89701 states and 128584 transitions. [2022-11-03 02:20:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:20:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 306 [2022-11-03 02:20:26,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:20:26,927 INFO L225 Difference]: With dead ends: 89701 [2022-11-03 02:20:26,927 INFO L226 Difference]: Without dead ends: 89699 [2022-11-03 02:20:26,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:20:26,976 INFO L413 NwaCegarLoop]: 5146 mSDtfsCounter, 4490 mSDsluCounter, 10196 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4490 SdHoareTripleChecker+Valid, 14298 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:20:26,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4490 Valid, 14298 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1572 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 02:20:27,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89699 states. [2022-11-03 02:20:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89699 to 89659. [2022-11-03 02:20:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89659 states, 53776 states have (on average 1.2479358821779232) internal successors, (67109), 54877 states have internal predecessors, (67109), 30701 states have call successors, (30701), 5199 states have call predecessors, (30701), 5181 states have return successors, (30719), 30329 states have call predecessors, (30719), 30701 states have call successors, (30719) [2022-11-03 02:20:32,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89659 states to 89659 states and 128529 transitions. [2022-11-03 02:20:32,528 INFO L78 Accepts]: Start accepts. Automaton has 89659 states and 128529 transitions. Word has length 306 [2022-11-03 02:20:32,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:20:32,529 INFO L495 AbstractCegarLoop]: Abstraction has 89659 states and 128529 transitions. [2022-11-03 02:20:32,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-03 02:20:32,530 INFO L276 IsEmpty]: Start isEmpty. Operand 89659 states and 128529 transitions. [2022-11-03 02:20:32,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1102 [2022-11-03 02:20:32,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:20:32,704 INFO L195 NwaCegarLoop]: trace histogram [31, 20, 19, 19, 19, 19, 19, 19, 18, 17, 17, 15, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:20:32,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:20:32,705 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:20:32,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:20:32,706 INFO L85 PathProgramCache]: Analyzing trace with hash -905181685, now seen corresponding path program 1 times [2022-11-03 02:20:32,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:20:32,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381620739] [2022-11-03 02:20:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:20:32,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:20:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat