./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:25:02,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:25:02,368 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:25:02,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:25:02,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:25:02,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:25:02,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:25:02,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:25:02,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:25:02,452 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:25:02,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:25:02,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:25:02,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:25:02,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:25:02,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:25:02,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:25:02,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:25:02,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:25:02,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:25:02,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:25:02,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:25:02,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:25:02,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:25:02,496 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:25:02,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:25:02,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:25:02,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:25:02,502 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:25:02,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:25:02,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:25:02,504 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:25:02,505 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:25:02,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:25:02,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:25:02,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:25:02,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:25:02,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:25:02,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:25:02,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:25:02,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:25:02,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:25:02,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:25:02,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:25:02,546 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:25:02,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:25:02,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:25:02,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:25:02,548 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:25:02,548 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:25:02,548 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:25:02,548 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:25:02,549 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:25:02,549 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:25:02,549 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:25:02,549 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:25:02,549 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:25:02,550 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:25:02,550 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:25:02,550 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:25:02,551 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:25:02,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:25:02,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:25:02,552 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:25:02,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:25:02,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:25:02,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:25:02,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:25:02,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:25:02,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:25:02,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:25:02,554 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:25:02,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:25:02,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:25:02,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:25:02,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:25:02,555 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:25:02,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:25:02,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:25:02,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:25:02,556 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:25:02,556 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b3ea3bfb5fa1a0ecb86372fd7d66f0cc10d9707b974c24e5c8a286e565a46ff [2021-11-21 01:25:02,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:25:02,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:25:02,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:25:02,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:25:02,951 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:25:02,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-21 01:25:03,025 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/data/06b98d925/e3e99d383c364b31817a566bde56aae4/FLAGde6c3e4ab [2021-11-21 01:25:03,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:25:03,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-21 01:25:04,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/data/06b98d925/e3e99d383c364b31817a566bde56aae4/FLAGde6c3e4ab [2021-11-21 01:25:04,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/data/06b98d925/e3e99d383c364b31817a566bde56aae4 [2021-11-21 01:25:04,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:25:04,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:25:04,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:25:04,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:25:04,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:25:04,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:25:04" (1/1) ... [2021-11-21 01:25:04,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a63b0ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:04, skipping insertion in model container [2021-11-21 01:25:04,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:25:04" (1/1) ... [2021-11-21 01:25:04,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:25:04,508 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:25:07,909 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_7c785479-6f84-4dd7-a905-dd64606dff14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2021-11-21 01:25:07,913 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_7c785479-6f84-4dd7-a905-dd64606dff14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2021-11-21 01:25:07,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:25:08,009 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:25:08,486 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_7c785479-6f84-4dd7-a905-dd64606dff14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335455,335468] [2021-11-21 01:25:08,486 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_7c785479-6f84-4dd7-a905-dd64606dff14/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i[335600,335613] [2021-11-21 01:25:08,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:25:08,742 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:25:08,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08 WrapperNode [2021-11-21 01:25:08,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:25:08,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:25:08,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:25:08,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:25:08,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:08,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,044 INFO L137 Inliner]: procedures = 454, calls = 1901, calls flagged for inlining = 226, calls inlined = 205, statements flattened = 4690 [2021-11-21 01:25:09,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:25:09,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:25:09,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:25:09,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:25:09,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:25:09,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:25:09,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:25:09,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:25:09,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (1/1) ... [2021-11-21 01:25:09,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:25:09,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:25:09,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:25:09,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:25:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:25:09,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:25:09,473 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-21 01:25:09,473 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-21 01:25:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:25:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:25:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 01:25:09,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 01:25:09,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2021-11-21 01:25:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2021-11-21 01:25:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:25:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:25:09,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:25:09,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:25:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_91 [2021-11-21 01:25:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_91 [2021-11-21 01:25:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:25:09,476 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:25:09,476 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-21 01:25:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-21 01:25:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:25:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:25:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:25:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:25:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:25:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:25:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:25:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:25:09,478 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:25:09,478 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:25:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:25:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:25:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:25:09,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:25:09,479 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-21 01:25:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-21 01:25:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:25:09,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:25:09,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:25:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:25:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:25:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 01:25:09,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 01:25:09,481 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-21 01:25:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-21 01:25:09,482 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:25:09,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:25:09,483 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-21 01:25:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-21 01:25:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:25:09,484 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-21 01:25:09,484 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-21 01:25:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:25:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:25:09,485 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-21 01:25:09,485 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-21 01:25:09,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:25:09,486 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-21 01:25:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-21 01:25:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:25:09,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:25:09,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:25:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:25:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:25:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:25:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:25:09,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:25:09,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:25:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:25:09,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:25:09,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:25:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:25:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:25:09,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:25:09,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:25:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:25:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-21 01:25:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-21 01:25:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:25:09,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:25:09,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:25:09,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:25:09,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:25:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-21 01:25:09,493 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-21 01:25:09,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 01:25:09,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 01:25:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:25:09,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:25:09,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:25:09,495 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:25:09,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:25:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:25:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:25:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:25:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:25:09,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:25:09,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 01:25:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 01:25:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 01:25:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 01:25:09,497 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-21 01:25:09,497 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-21 01:25:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 01:25:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 01:25:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-21 01:25:09,498 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-21 01:25:09,498 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:25:09,499 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:25:09,500 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-21 01:25:09,502 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-21 01:25:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:25:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:25:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:25:09,505 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:25:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:25:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:25:09,506 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-21 01:25:09,506 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-21 01:25:09,512 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-21 01:25:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-21 01:25:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-21 01:25:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-21 01:25:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:25:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:25:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-21 01:25:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-21 01:25:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:25:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:25:09,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:25:09,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:25:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:25:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:25:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-21 01:25:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-21 01:25:09,515 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-21 01:25:09,515 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-21 01:25:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:25:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:25:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-21 01:25:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-21 01:25:09,516 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:25:09,516 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:25:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-21 01:25:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-21 01:25:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:25:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:25:09,517 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:25:09,517 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:25:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:25:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:25:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:25:09,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:25:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:25:09,518 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-21 01:25:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-21 01:25:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:25:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:25:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:25:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_89 [2021-11-21 01:25:09,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_89 [2021-11-21 01:25:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-21 01:25:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-21 01:25:09,520 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 01:25:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 01:25:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-21 01:25:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-21 01:25:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:25:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-21 01:25:09,521 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-21 01:25:09,521 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:25:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:25:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:25:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:25:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:25:09,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:25:09,522 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-21 01:25:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-21 01:25:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 01:25:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 01:25:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:25:09,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:25:09,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:25:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:25:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 01:25:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 01:25:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:25:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:25:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:25:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:25:09,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:25:09,526 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-21 01:25:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-21 01:25:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:25:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:25:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-21 01:25:09,527 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-21 01:25:09,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-21 01:25:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_amd8111e_priv [2021-11-21 01:25:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:25:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:25:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:25:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:25:09,528 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-21 01:25:09,528 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-21 01:25:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:25:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:25:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:25:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-21 01:25:09,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_amd8111e_priv [2021-11-21 01:25:09,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:25:09,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:25:10,390 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:25:10,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:25:11,173 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:25:13,558 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:25:13,655 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:25:14,686 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:25:14,687 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 01:25:14,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:25:14 BoogieIcfgContainer [2021-11-21 01:25:14,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:25:14,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:25:14,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:25:14,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:25:14,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:25:04" (1/3) ... [2021-11-21 01:25:14,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df80387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:25:14, skipping insertion in model container [2021-11-21 01:25:14,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:25:08" (2/3) ... [2021-11-21 01:25:14,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1df80387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:25:14, skipping insertion in model container [2021-11-21 01:25:14,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:25:14" (3/3) ... [2021-11-21 01:25:14,700 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-amd8111e.cil.i [2021-11-21 01:25:14,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:25:14,714 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:25:14,780 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:25:14,787 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:25:14,788 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:25:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 1387 states, 769 states have (on average 1.2808842652795838) internal successors, (985), 800 states have internal predecessors, (985), 520 states have call successors, (520), 98 states have call predecessors, (520), 97 states have return successors, (515), 506 states have call predecessors, (515), 515 states have call successors, (515) [2021-11-21 01:25:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-21 01:25:14,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:14,887 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:25:14,888 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:14,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:14,893 INFO L85 PathProgramCache]: Analyzing trace with hash 744197101, now seen corresponding path program 1 times [2021-11-21 01:25:14,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:14,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643353239] [2021-11-21 01:25:14,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:14,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-21 01:25:15,742 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:15,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643353239] [2021-11-21 01:25:15,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643353239] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:25:15,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:25:15,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:25:15,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926959346] [2021-11-21 01:25:15,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:25:15,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:25:15,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:25:15,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:25:15,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:15,793 INFO L87 Difference]: Start difference. First operand has 1387 states, 769 states have (on average 1.2808842652795838) internal successors, (985), 800 states have internal predecessors, (985), 520 states have call successors, (520), 98 states have call predecessors, (520), 97 states have return successors, (515), 506 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 01:25:18,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:25:18,333 INFO L93 Difference]: Finished difference Result 3637 states and 5313 transitions. [2021-11-21 01:25:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:25:18,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 209 [2021-11-21 01:25:18,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:25:18,388 INFO L225 Difference]: With dead ends: 3637 [2021-11-21 01:25:18,388 INFO L226 Difference]: Without dead ends: 2220 [2021-11-21 01:25:18,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:18,417 INFO L933 BasicCegarLoop]: 2063 mSDtfsCounter, 1269 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:25:18,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 3781 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:25:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2021-11-21 01:25:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 2217. [2021-11-21 01:25:18,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2217 states, 1264 states have (on average 1.2776898734177216) internal successors, (1615), 1314 states have internal predecessors, (1615), 788 states have call successors, (788), 164 states have call predecessors, (788), 164 states have return successors, (788), 773 states have call predecessors, (788), 788 states have call successors, (788) [2021-11-21 01:25:18,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2217 states to 2217 states and 3191 transitions. [2021-11-21 01:25:18,736 INFO L78 Accepts]: Start accepts. Automaton has 2217 states and 3191 transitions. Word has length 209 [2021-11-21 01:25:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:25:18,739 INFO L470 AbstractCegarLoop]: Abstraction has 2217 states and 3191 transitions. [2021-11-21 01:25:18,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 01:25:18,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2217 states and 3191 transitions. [2021-11-21 01:25:18,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-11-21 01:25:18,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:18,767 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 5, 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] [2021-11-21 01:25:18,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:25:18,767 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:18,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:18,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1375175326, now seen corresponding path program 1 times [2021-11-21 01:25:18,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:18,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372608814] [2021-11-21 01:25:18,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:18,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-11-21 01:25:19,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:19,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372608814] [2021-11-21 01:25:19,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372608814] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:25:19,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:25:19,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:25:19,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876009461] [2021-11-21 01:25:19,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:25:19,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:25:19,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:25:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:25:19,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:19,044 INFO L87 Difference]: Start difference. First operand 2217 states and 3191 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 01:25:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:25:21,090 INFO L93 Difference]: Finished difference Result 5817 states and 8346 transitions. [2021-11-21 01:25:21,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:25:21,090 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 197 [2021-11-21 01:25:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:25:21,129 INFO L225 Difference]: With dead ends: 5817 [2021-11-21 01:25:21,129 INFO L226 Difference]: Without dead ends: 3621 [2021-11-21 01:25:21,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:21,150 INFO L933 BasicCegarLoop]: 2138 mSDtfsCounter, 1627 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:25:21,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1627 Valid, 3797 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:25:21,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2021-11-21 01:25:21,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3617. [2021-11-21 01:25:21,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 2058 states have (on average 1.272108843537415) internal successors, (2618), 2145 states have internal predecessors, (2618), 1276 states have call successors, (1276), 282 states have call predecessors, (1276), 282 states have return successors, (1279), 1246 states have call predecessors, (1279), 1276 states have call successors, (1279) [2021-11-21 01:25:21,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 5173 transitions. [2021-11-21 01:25:21,473 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 5173 transitions. Word has length 197 [2021-11-21 01:25:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:25:21,476 INFO L470 AbstractCegarLoop]: Abstraction has 3617 states and 5173 transitions. [2021-11-21 01:25:21,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 01:25:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5173 transitions. [2021-11-21 01:25:21,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-21 01:25:21,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:21,489 INFO L514 BasicCegarLoop]: trace histogram [14, 10, 10, 10, 10, 10, 10, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:25:21,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:25:21,489 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:21,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:21,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1062667201, now seen corresponding path program 1 times [2021-11-21 01:25:21,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:21,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053790642] [2021-11-21 01:25:21,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:21,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2021-11-21 01:25:21,733 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:21,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053790642] [2021-11-21 01:25:21,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053790642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:25:21,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:25:21,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:25:21,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423478139] [2021-11-21 01:25:21,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:25:21,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:25:21,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:25:21,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:25:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:25:21,736 INFO L87 Difference]: Start difference. First operand 3617 states and 5173 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:25:27,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:25:27,934 INFO L93 Difference]: Finished difference Result 10022 states and 14281 transitions. [2021-11-21 01:25:27,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:25:27,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) Word has length 227 [2021-11-21 01:25:27,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:25:28,000 INFO L225 Difference]: With dead ends: 10022 [2021-11-21 01:25:28,000 INFO L226 Difference]: Without dead ends: 6426 [2021-11-21 01:25:28,022 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:25:28,025 INFO L933 BasicCegarLoop]: 3355 mSDtfsCounter, 3303 mSDsluCounter, 4481 mSDsCounter, 0 mSdLazyCounter, 2725 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3383 SdHoareTripleChecker+Valid, 7065 SdHoareTripleChecker+Invalid, 3066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:25:28,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3383 Valid, 7065 Invalid, 3066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2725 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2021-11-21 01:25:28,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6426 states. [2021-11-21 01:25:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6426 to 6414. [2021-11-21 01:25:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6414 states, 3672 states have (on average 1.2723311546840959) internal successors, (4672), 3828 states have internal predecessors, (4672), 2210 states have call successors, (2210), 531 states have call predecessors, (2210), 531 states have return successors, (2213), 2158 states have call predecessors, (2213), 2210 states have call successors, (2213) [2021-11-21 01:25:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6414 states to 6414 states and 9095 transitions. [2021-11-21 01:25:28,583 INFO L78 Accepts]: Start accepts. Automaton has 6414 states and 9095 transitions. Word has length 227 [2021-11-21 01:25:28,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:25:28,585 INFO L470 AbstractCegarLoop]: Abstraction has 6414 states and 9095 transitions. [2021-11-21 01:25:28,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 4 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-21 01:25:28,591 INFO L276 IsEmpty]: Start isEmpty. Operand 6414 states and 9095 transitions. [2021-11-21 01:25:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-21 01:25:28,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:28,609 INFO L514 BasicCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 10, 10, 5, 3, 3, 3, 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] [2021-11-21 01:25:28,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:25:28,609 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:28,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:28,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1190170734, now seen corresponding path program 1 times [2021-11-21 01:25:28,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:28,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27089383] [2021-11-21 01:25:28,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:28,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2021-11-21 01:25:28,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:28,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27089383] [2021-11-21 01:25:28,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27089383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:25:28,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:25:28,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:25:28,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847178812] [2021-11-21 01:25:28,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:25:28,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:25:28,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:25:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:25:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:28,912 INFO L87 Difference]: Start difference. First operand 6414 states and 9095 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-21 01:25:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:25:30,565 INFO L93 Difference]: Finished difference Result 12891 states and 18341 transitions. [2021-11-21 01:25:30,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:25:30,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 314 [2021-11-21 01:25:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:25:30,626 INFO L225 Difference]: With dead ends: 12891 [2021-11-21 01:25:30,626 INFO L226 Difference]: Without dead ends: 6498 [2021-11-21 01:25:30,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:25:30,669 INFO L933 BasicCegarLoop]: 1704 mSDtfsCounter, 10 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:25:30,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 3399 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:25:30,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6498 states. [2021-11-21 01:25:31,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6498 to 6426. [2021-11-21 01:25:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6426 states, 3684 states have (on average 1.271444082519001) internal successors, (4684), 3840 states have internal predecessors, (4684), 2210 states have call successors, (2210), 531 states have call predecessors, (2210), 531 states have return successors, (2213), 2158 states have call predecessors, (2213), 2210 states have call successors, (2213) [2021-11-21 01:25:31,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6426 states to 6426 states and 9107 transitions. [2021-11-21 01:25:31,090 INFO L78 Accepts]: Start accepts. Automaton has 6426 states and 9107 transitions. Word has length 314 [2021-11-21 01:25:31,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:25:31,093 INFO L470 AbstractCegarLoop]: Abstraction has 6426 states and 9107 transitions. [2021-11-21 01:25:31,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-21 01:25:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6426 states and 9107 transitions. [2021-11-21 01:25:31,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-21 01:25:31,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:25:31,109 INFO L514 BasicCegarLoop]: trace histogram [16, 10, 10, 10, 10, 10, 10, 9, 9, 5, 3, 3, 3, 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] [2021-11-21 01:25:31,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:25:31,110 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:25:31,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:25:31,110 INFO L85 PathProgramCache]: Analyzing trace with hash -2063416666, now seen corresponding path program 1 times [2021-11-21 01:25:31,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:25:31,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405992871] [2021-11-21 01:25:31,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:31,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:25:31,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:31,411 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2021-11-21 01:25:31,411 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:25:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405992871] [2021-11-21 01:25:31,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405992871] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:25:31,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421227026] [2021-11-21 01:25:31,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:25:31,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:25:31,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:25:31,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:25:31,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c785479-6f84-4dd7-a905-dd64606dff14/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:25:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:25:32,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 2985 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:25:32,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:25:33,163 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2021-11-21 01:25:33,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:25:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 669 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2021-11-21 01:25:34,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421227026] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:25:34,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581682799] [2021-11-21 01:25:34,045 INFO L159 IcfgInterpreter]: Started Sifa with 175 locations of interest [2021-11-21 01:25:34,045 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:25:34,053 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:25:34,061 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:25:34,061 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs