./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V --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 32856f5d0c4b3619f0ce02a20f79c0968570d5a120f36f7531c35cd4321618ba --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:53:13,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:53:13,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:53:13,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:53:13,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:53:13,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:53:13,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:53:13,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:53:13,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:53:13,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:53:13,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:53:13,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:53:13,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:53:13,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:53:13,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:53:13,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:53:13,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:53:13,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:53:13,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:53:13,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:53:13,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:53:13,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:53:13,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:53:13,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:53:13,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:53:13,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:53:13,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:53:13,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:53:13,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:53:13,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:53:13,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:53:13,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:53:13,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:53:13,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:53:13,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:53:13,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:53:13,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:53:13,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:53:13,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:53:13,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:53:13,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:53:13,389 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:53:13,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:53:13,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:53:13,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:53:13,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:53:13,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:53:13,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:53:13,443 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:53:13,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:53:13,444 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:53:13,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:53:13,445 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:53:13,445 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:53:13,446 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:53:13,446 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:53:13,446 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:53:13,447 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:53:13,447 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:53:13,447 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:53:13,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:53:13,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:53:13,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:53:13,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:53:13,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:53:13,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:53:13,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:53:13,451 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:53:13,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:53:13,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:53:13,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:53:13,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:13,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:53:13,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:53:13,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:53:13,455 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:53:13,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:53:13,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:53:13,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:53:13,456 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:53:13,456 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32856f5d0c4b3619f0ce02a20f79c0968570d5a120f36f7531c35cd4321618ba [2021-11-23 02:53:13,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:53:13,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:53:13,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:53:13,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:53:13,838 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:53:13,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i [2021-11-23 02:53:13,907 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/data/68cab7140/504e4ca7baae492facda12cfd4953234/FLAG340f1e1b1 [2021-11-23 02:53:14,868 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:53:14,868 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i [2021-11-23 02:53:14,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/data/68cab7140/504e4ca7baae492facda12cfd4953234/FLAG340f1e1b1 [2021-11-23 02:53:15,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/data/68cab7140/504e4ca7baae492facda12cfd4953234 [2021-11-23 02:53:15,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:53:15,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:53:15,261 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:15,261 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:53:15,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:53:15,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:15" (1/1) ... [2021-11-23 02:53:15,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70bf548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:15, skipping insertion in model container [2021-11-23 02:53:15,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:15" (1/1) ... [2021-11-23 02:53:15,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:53:15,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:53:18,755 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[353824,353837] [2021-11-23 02:53:18,758 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[353990,354003] [2021-11-23 02:53:18,759 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[354154,354167] [2021-11-23 02:53:18,760 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[354319,354332] [2021-11-23 02:53:18,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:18,825 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:53:19,654 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[353824,353837] [2021-11-23 02:53:19,655 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[353990,354003] [2021-11-23 02:53:19,655 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[354154,354167] [2021-11-23 02:53:19,656 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_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-radio-radio-wl1273.cil.i[354319,354332] [2021-11-23 02:53:19,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:53:19,825 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:53:19,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19 WrapperNode [2021-11-23 02:53:19,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:53:19,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:19,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:53:19,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:53:19,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:20,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:21,317 INFO L137 Inliner]: procedures = 349, calls = 4910, calls flagged for inlining = 212, calls inlined = 199, statements flattened = 10244 [2021-11-23 02:53:21,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:53:21,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:53:21,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:53:21,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:53:21,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:21,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:21,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:21,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:23,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:23,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:23,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:23,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:53:23,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:53:23,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:53:23,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:53:23,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:19" (1/1) ... [2021-11-23 02:53:23,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:53:23,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:53:23,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:53:23,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c29e07b-39f3-4e55-9b84-9e7ee641b23a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:53:23,526 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_radio_driver_exit [2021-11-23 02:53:23,526 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_radio_driver_exit [2021-11-23 02:53:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_radio_remove [2021-11-23 02:53:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_radio_remove [2021-11-23 02:53:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:53:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:53:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:53:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:53:23,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:53:23,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:53:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:53:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:53:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2021-11-23 02:53:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2021-11-23 02:53:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:53:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:53:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:53:23,528 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:53:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-23 02:53:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-23 02:53:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_vdev_release [2021-11-23 02:53:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_vdev_release [2021-11-23 02:53:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_fops_poll [2021-11-23 02:53:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_fops_poll [2021-11-23 02:53:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2021-11-23 02:53:23,529 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2021-11-23 02:53:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_radio_probe [2021-11-23 02:53:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_radio_probe [2021-11-23 02:53:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_vidioc_log_status [2021-11-23 02:53:23,530 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_vidioc_log_status [2021-11-23 02:53:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_vidioc_s_ctrl [2021-11-23 02:53:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_vidioc_s_ctrl [2021-11-23 02:53:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~int [2021-11-23 02:53:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~int [2021-11-23 02:53:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 02:53:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 02:53:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_stop [2021-11-23 02:53:23,531 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_stop [2021-11-23 02:53:23,531 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_fops_release [2021-11-23 02:53:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_fops_release [2021-11-23 02:53:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_wl1273_fm_radio_driver_exit_10_2 [2021-11-23 02:53:23,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_wl1273_fm_radio_driver_exit_10_2 [2021-11-23 02:53:23,532 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_completion [2021-11-23 02:53:23,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_completion [2021-11-23 02:53:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:53:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_wl1273_core [2021-11-23 02:53:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_wl1273_core [2021-11-23 02:53:23,534 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_set_tx_freq [2021-11-23 02:53:23,534 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_set_tx_freq [2021-11-23 02:53:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:53:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:53:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:53:23,535 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2021-11-23 02:53:23,535 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2021-11-23 02:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:53:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2021-11-23 02:53:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2021-11-23 02:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:53:23,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:53:23,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:53:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-23 02:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-23 02:53:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-23 02:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_wl1273_core [2021-11-23 02:53:23,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_wl1273_core [2021-11-23 02:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:53:23,537 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_set_rx_freq [2021-11-23 02:53:23,538 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_set_rx_freq [2021-11-23 02:53:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:53:23,538 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:53:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:53:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_fops_open [2021-11-23 02:53:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_fops_open [2021-11-23 02:53:23,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:53:23,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:53:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:53:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:53:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~TO~int [2021-11-23 02:53:23,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~TO~int [2021-11-23 02:53:23,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:53:23,541 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 02:53:23,541 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 02:53:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:53:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-23 02:53:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:53:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:53:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:53:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:53:23,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:53:23,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-23 02:53:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_g_volatile_ctrl [2021-11-23 02:53:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_g_volatile_ctrl [2021-11-23 02:53:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_wl1273_core [2021-11-23 02:53:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_or_killable_lock_of_wl1273_core [2021-11-23 02:53:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:53:23,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:53:23,543 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_set_mode [2021-11-23 02:53:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_set_mode [2021-11-23 02:53:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:53:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:53:23,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:53:23,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-23 02:53:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:53:23,545 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_transfer [2021-11-23 02:53:23,546 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_transfer [2021-11-23 02:53:23,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:53:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:53:23,550 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-11-23 02:53:23,550 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-11-23 02:53:23,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:53:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_fops_write [2021-11-23 02:53:23,552 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_fops_write [2021-11-23 02:53:23,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2021-11-23 02:53:23,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2021-11-23 02:53:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:53:23,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:53:23,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:53:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:53:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:53:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:53:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 02:53:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 02:53:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 02:53:23,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 02:53:23,559 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2021-11-23 02:53:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2021-11-23 02:53:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure wl1273_fm_set_rds [2021-11-23 02:53:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1273_fm_set_rds [2021-11-23 02:53:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:53:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:53:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:53:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:53:23,560 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:23,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:53:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 02:53:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 02:53:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:53:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:53:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-11-23 02:53:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-11-23 02:53:23,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:53:23,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:53:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-11-23 02:53:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-11-23 02:53:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 02:53:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 02:53:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-23 02:53:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-23 02:53:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:53:23,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:53:23,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:53:23,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:53:23,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:53:24,754 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:53:24,758 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:53:25,052 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;