./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-net-wireless-ipw2x00-ipw2100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a726a5193e63c1219bd87d1639e8de22edb997e98056d7c45179f71e6a8d2119 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:38:25,659 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:38:25,806 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-64bit-Kojak_Default.epf [2023-11-19 03:38:25,817 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:38:25,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:38:25,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:38:25,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:38:25,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:38:25,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:38:25,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:38:25,871 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:38:25,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:38:25,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:38:25,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:38:25,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:38:25,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:38:25,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:38:25,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:38:25,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:38:25,878 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:38:25,878 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:38:25,879 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:38:25,880 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:38:25,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:25,881 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:38:25,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:38:25,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:38:25,883 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:38:25,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:38:25,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:38:25,885 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a726a5193e63c1219bd87d1639e8de22edb997e98056d7c45179f71e6a8d2119 [2023-11-19 03:38:26,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:38:26,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:38:26,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:38:26,378 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:38:26,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:38:26,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2023-11-19 03:38:30,207 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:38:31,357 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:38:31,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i [2023-11-19 03:38:31,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/data/95f512d70/a0616f470b444e3cb1d7275589f74228/FLAGaa14301c1 [2023-11-19 03:38:31,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/data/95f512d70/a0616f470b444e3cb1d7275589f74228 [2023-11-19 03:38:31,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:38:31,501 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:38:31,505 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:31,505 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:38:31,511 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:38:31,513 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:31" (1/1) ... [2023-11-19 03:38:31,514 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ce06ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:31, skipping insertion in model container [2023-11-19 03:38:31,514 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:31" (1/1) ... [2023-11-19 03:38:31,922 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:38:40,859 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769201,769214] [2023-11-19 03:38:40,864 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769367,769380] [2023-11-19 03:38:40,865 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769531,769544] [2023-11-19 03:38:40,866 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769696,769709] [2023-11-19 03:38:40,926 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:41,059 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:38:41,324 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7222] [2023-11-19 03:38:41,326 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [7229] [2023-11-19 03:38:41,327 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7236] [2023-11-19 03:38:41,330 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [7305-7306] [2023-11-19 03:38:41,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [7311-7313] [2023-11-19 03:38:41,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [7381] [2023-11-19 03:38:41,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7384] [2023-11-19 03:38:41,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7387] [2023-11-19 03:38:41,335 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [7390] [2023-11-19 03:38:41,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [7503] [2023-11-19 03:38:41,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [7663-7664] [2023-11-19 03:38:41,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [7697-7698] [2023-11-19 03:38:41,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (103), "i" (12UL)); [7734-7735] [2023-11-19 03:38:41,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (115), "i" (12UL)); [7771-7772] [2023-11-19 03:38:41,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [13251] [2023-11-19 03:38:42,307 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769201,769214] [2023-11-19 03:38:42,308 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769367,769380] [2023-11-19 03:38:42,308 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769531,769544] [2023-11-19 03:38:42,309 WARN L240 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_34858859-5016-417e-bda9-20072e97b876/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ipw2x00-ipw2100.cil.i[769696,769709] [2023-11-19 03:38:42,321 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:42,903 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:42,904 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:42,904 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:42,914 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:38:42,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42 WrapperNode [2023-11-19 03:38:42,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:42,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:42,918 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:38:42,918 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:38:42,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:43,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:43,978 INFO L138 Inliner]: procedures = 688, calls = 12302, calls flagged for inlining = 369, calls inlined = 261, statements flattened = 15364 [2023-11-19 03:38:43,979 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:43,980 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:38:43,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:38:43,981 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:38:43,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:43,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:44,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:44,122 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:44,966 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:45,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:45,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:45,153 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:45,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:38:45,374 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:38:45,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:38:45,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:38:45,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:42" (1/1) ... [2023-11-19 03:38:45,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:45,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:38:45,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:38:45,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34858859-5016-417e-bda9-20072e97b876/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:38:45,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-19 03:38:45,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-19 03:38:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 03:38:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 03:38:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure read_register [2023-11-19 03:38:45,481 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register [2023-11-19 03:38:45,481 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_data [2023-11-19 03:38:45,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_data [2023-11-19 03:38:45,482 INFO L130 BoogieDeclarations]: Found specification of procedure write_register_byte [2023-11-19 03:38:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register_byte [2023-11-19 03:38:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 03:38:45,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 03:38:45,483 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 03:38:45,484 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 03:38:45,484 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2023-11-19 03:38:45,485 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2023-11-19 03:38:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_release_firmware [2023-11-19 03:38:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_release_firmware [2023-11-19 03:38:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_configure_security [2023-11-19 03:38:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_configure_security [2023-11-19 03:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 03:38:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 03:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2023-11-19 03:38:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2023-11-19 03:38:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_adapter [2023-11-19 03:38:45,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_adapter [2023-11-19 03:38:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_security_information [2023-11-19 03:38:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_security_information [2023-11-19 03:38:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-11-19 03:38:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-11-19 03:38:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 03:38:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 03:38:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 03:38:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-19 03:38:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-19 03:38:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 03:38:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 03:38:45,493 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 03:38:45,493 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 03:38:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 03:38:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 03:38:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mandatory_bssid [2023-11-19 03:38:45,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mandatory_bssid [2023-11-19 03:38:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 03:38:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 03:38:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 03:38:45,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-19 03:38:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 03:38:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 03:38:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2023-11-19 03:38:45,497 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2023-11-19 03:38:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_unregister [2023-11-19 03:38:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_unregister [2023-11-19 03:38:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_adapter [2023-11-19 03:38:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_adapter [2023-11-19 03:38:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 03:38:45,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 03:38:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:38:45,499 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_send_command [2023-11-19 03:38:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_send_command [2023-11-19 03:38:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 03:38:45,500 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 03:38:45,500 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_word [2023-11-19 03:38:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_word [2023-11-19 03:38:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 03:38:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 03:38:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure isr_scan_complete [2023-11-19 03:38:45,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_scan_complete [2023-11-19 03:38:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_power_mode [2023-11-19 03:38:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_power_mode [2023-11-19 03:38:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 03:38:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 03:38:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_byte [2023-11-19 03:38:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_byte [2023-11-19 03:38:45,503 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 03:38:45,503 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 03:38:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2023-11-19 03:38:45,504 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2023-11-19 03:38:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 03:38:45,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 03:38:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 03:38:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 03:38:45,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 03:38:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:38:45,505 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_dword [2023-11-19 03:38:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_dword [2023-11-19 03:38:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 03:38:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 03:38:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_channel [2023-11-19 03:38:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_channel [2023-11-19 03:38:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:38:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 03:38:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 03:38:45,507 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_up [2023-11-19 03:38:45,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_up [2023-11-19 03:38:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_send_commands [2023-11-19 03:38:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_send_commands [2023-11-19 03:38:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 03:38:45,508 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 03:38:45,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-11-19 03:38:45,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-11-19 03:38:45,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 03:38:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 03:38:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 03:38:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 03:38:45,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2023-11-19 03:38:45,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipw2100_exit_18_2 [2023-11-19 03:38:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 03:38:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 03:38:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 03:38:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 03:38:45,512 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_adapter [2023-11-19 03:38:45,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_adapter [2023-11-19 03:38:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 03:38:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 03:38:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2023-11-19 03:38:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_action_mutex_of_ipw2100_priv [2023-11-19 03:38:45,513 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_scan_options [2023-11-19 03:38:45,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_scan_options [2023-11-19 03:38:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_txb_free [2023-11-19 03:38:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_txb_free [2023-11-19 03:38:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_reset_fatalerror [2023-11-19 03:38:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_reset_fatalerror [2023-11-19 03:38:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 03:38:45,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 03:38:45,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 03:38:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 03:38:45,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 03:38:45,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:38:45,516 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_rates [2023-11-19 03:38:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_rates [2023-11-19 03:38:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 03:38:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 03:38:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure print_ssid [2023-11-19 03:38:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure print_ssid [2023-11-19 03:38:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 03:38:45,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 03:38:45,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 03:38:45,523 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2023-11-19 03:38:45,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2023-11-19 03:38:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 03:38:45,524 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_snapshot_free [2023-11-19 03:38:45,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_snapshot_free [2023-11-19 03:38:45,526 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 03:38:45,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 03:38:45,527 INFO L130 BoogieDeclarations]: Found specification of procedure snprint_line [2023-11-19 03:38:45,528 INFO L138 BoogieDeclarations]: Found implementation of procedure snprint_line [2023-11-19 03:38:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 03:38:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-11-19 03:38:45,532 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_reset [2023-11-19 03:38:45,532 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_reset [2023-11-19 03:38:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-19 03:38:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-19 03:38:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 03:38:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 03:38:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure sw_reset_and_clock [2023-11-19 03:38:45,533 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_reset_and_clock [2023-11-19 03:38:45,533 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_enable_interrupts [2023-11-19 03:38:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_enable_interrupts [2023-11-19 03:38:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2023-11-19 03:38:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2023-11-19 03:38:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_resume [2023-11-19 03:38:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_resume [2023-11-19 03:38:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2023-11-19 03:38:45,534 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2023-11-19 03:38:45,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:38:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:38:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure wireless_send_event [2023-11-19 03:38:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure wireless_send_event [2023-11-19 03:38:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_pci_remove_one [2023-11-19 03:38:45,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_pci_remove_one [2023-11-19 03:38:45,535 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_free [2023-11-19 03:38:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_free [2023-11-19 03:38:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 03:38:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 03:38:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 03:38:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 03:38:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 03:38:45,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 03:38:45,536 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_alloc_skb [2023-11-19 03:38:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_alloc_skb [2023-11-19 03:38:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-11-19 03:38:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-11-19 03:38:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_get_ordinal [2023-11-19 03:38:45,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_get_ordinal [2023-11-19 03:38:45,537 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_stop_adapter [2023-11-19 03:38:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_stop_adapter [2023-11-19 03:38:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure write_register [2023-11-19 03:38:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure write_register [2023-11-19 03:38:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_hw_set_gpio [2023-11-19 03:38:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_hw_set_gpio [2023-11-19 03:38:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-19 03:38:45,538 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-19 03:38:45,538 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_down [2023-11-19 03:38:45,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_down [2023-11-19 03:38:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2023-11-19 03:38:45,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_adapter_mutex_of_ipw2100_priv [2023-11-19 03:38:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_close [2023-11-19 03:38:45,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_close [2023-11-19 03:38:45,539 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_wait_for_card_state [2023-11-19 03:38:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_wait_for_card_state [2023-11-19 03:38:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_rf_kill [2023-11-19 03:38:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_rf_kill [2023-11-19 03:38:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-11-19 03:38:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-11-19 03:38:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure read_register_byte [2023-11-19 03:38:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure read_register_byte [2023-11-19 03:38:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure status_queue_free [2023-11-19 03:38:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure status_queue_free [2023-11-19 03:38:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 03:38:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 03:38:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 03:38:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 03:38:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 03:38:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 03:38:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_rx_free [2023-11-19 03:38:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_rx_free [2023-11-19 03:38:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-11-19 03:38:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-11-19 03:38:45,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-19 03:38:45,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-19 03:38:45,543 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 03:38:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 03:38:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-19 03:38:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-19 03:38:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:38:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure mod_delayed_work [2023-11-19 03:38:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_delayed_work [2023-11-19 03:38:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 03:38:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 03:38:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_shutdown [2023-11-19 03:38:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_shutdown [2023-11-19 03:38:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 03:38:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure write_nic_word [2023-11-19 03:38:45,546 INFO L138 BoogieDeclarations]: Found implementation of procedure write_nic_word [2023-11-19 03:38:45,546 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_association_lost [2023-11-19 03:38:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_association_lost [2023-11-19 03:38:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_free [2023-11-19 03:38:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_free [2023-11-19 03:38:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_mac_address [2023-11-19 03:38:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_mac_address [2023-11-19 03:38:45,547 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_essid [2023-11-19 03:38:45,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_essid [2023-11-19 03:38:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-11-19 03:38:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-11-19 03:38:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 03:38:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 03:38:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 03:38:45,548 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_disable_interrupts [2023-11-19 03:38:45,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_disable_interrupts [2023-11-19 03:38:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-19 03:38:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-19 03:38:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 03:38:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 03:38:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_rts_threshold [2023-11-19 03:38:45,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_rts_threshold [2023-11-19 03:38:45,549 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_byte [2023-11-19 03:38:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_byte [2023-11-19 03:38:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 03:38:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 03:38:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure free_libipw [2023-11-19 03:38:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure free_libipw [2023-11-19 03:38:45,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 03:38:45,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 03:38:45,552 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-19 03:38:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-19 03:38:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 03:38:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 03:38:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_msg_free [2023-11-19 03:38:45,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_msg_free [2023-11-19 03:38:45,557 INFO L130 BoogieDeclarations]: Found specification of procedure printk_buf [2023-11-19 03:38:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure printk_buf [2023-11-19 03:38:45,558 INFO L130 BoogieDeclarations]: Found specification of procedure ipw_ethtool_get_drvinfo [2023-11-19 03:38:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw_ethtool_get_drvinfo [2023-11-19 03:38:45,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2023-11-19 03:38:45,561 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2023-11-19 03:38:45,561 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_set_tx_power [2023-11-19 03:38:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_set_tx_power [2023-11-19 03:38:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 03:38:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 03:38:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-19 03:38:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-19 03:38:45,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 03:38:45,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-19 03:38:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 03:38:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 03:38:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-19 03:38:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-19 03:38:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_system_config [2023-11-19 03:38:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_system_config [2023-11-19 03:38:45,563 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_kill_works [2023-11-19 03:38:45,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_kill_works [2023-11-19 03:38:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure strnlen [2023-11-19 03:38:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure strnlen [2023-11-19 03:38:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 03:38:45,564 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 03:38:45,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 03:38:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-19 03:38:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:38:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_free [2023-11-19 03:38:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_free [2023-11-19 03:38:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 03:38:45,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 03:38:45,565 INFO L130 BoogieDeclarations]: Found specification of procedure rf_kill_active [2023-11-19 03:38:45,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_kill_active [2023-11-19 03:38:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure get_seconds [2023-11-19 03:38:45,566 INFO L138 BoogieDeclarations]: Found implementation of procedure get_seconds [2023-11-19 03:38:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 03:38:45,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2023-11-19 03:38:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_allocate [2023-11-19 03:38:45,566 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_allocate [2023-11-19 03:38:45,566 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 03:38:45,567 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 03:38:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure libipw_priv [2023-11-19 03:38:45,567 INFO L138 BoogieDeclarations]: Found implementation of procedure libipw_priv [2023-11-19 03:38:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-11-19 03:38:45,567 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-11-19 03:38:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 03:38:45,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 03:38:45,567 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_tx_timeout [2023-11-19 03:38:45,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_tx_timeout [2023-11-19 03:38:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2023-11-19 03:38:45,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_action_mutex_of_ipw2100_priv [2023-11-19 03:38:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2023-11-19 03:38:45,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_adapter_mutex_of_ipw2100_priv [2023-11-19 03:38:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 03:38:45,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 03:38:45,568 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-19 03:38:45,569 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-19 03:38:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-19 03:38:45,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-19 03:38:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2023-11-19 03:38:45,569 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2023-11-19 03:38:45,569 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 03:38:45,569 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 03:38:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_open [2023-11-19 03:38:45,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_open [2023-11-19 03:38:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 03:38:45,570 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 03:38:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_queues_initialize [2023-11-19 03:38:45,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_queues_initialize [2023-11-19 03:38:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-19 03:38:45,570 INFO L130 BoogieDeclarations]: Found specification of procedure pm_qos_update_request [2023-11-19 03:38:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_qos_update_request [2023-11-19 03:38:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_associated [2023-11-19 03:38:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_associated [2023-11-19 03:38:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:38:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure isr_indicate_scanning [2023-11-19 03:38:45,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isr_indicate_scanning [2023-11-19 03:38:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure read_nic_dword [2023-11-19 03:38:45,572 INFO L138 BoogieDeclarations]: Found implementation of procedure read_nic_dword [2023-11-19 03:38:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 03:38:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 03:38:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 03:38:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 03:38:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure bd_queue_initialize [2023-11-19 03:38:45,573 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_queue_initialize [2023-11-19 03:38:45,573 INFO L130 BoogieDeclarations]: Found specification of procedure ipw2100_start_scan [2023-11-19 03:38:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ipw2100_start_scan [2023-11-19 03:38:45,574 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 03:38:45,574 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 03:38:47,322 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:38:47,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:39:19,414 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true;