./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:57:34,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:57:34,585 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:57:34,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:57:34,593 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:57:34,631 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:57:34,632 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:57:34,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:57:34,634 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:57:34,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:57:34,639 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:57:34,640 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:57:34,641 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:57:34,642 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:57:34,643 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:57:34,643 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:57:34,643 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:57:34,644 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:57:34,644 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:57:34,645 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:57:34,645 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:57:34,646 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:57:34,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:57:34,647 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:57:34,648 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:57:34,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:57:34,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:57:34,649 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:57:34,649 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:57:34,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:57:34,651 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:57:34,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:57:34,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:57:34,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:57:34,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:34,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:57:34,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:57:34,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:57:34,653 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:57:34,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:57:34,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:57:34,654 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:57:34,654 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:57:34,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:57:34,655 INFO L153 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_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08fd1f25b7d22203947cf6c4ad8cac3aedaa56ca5536c5ddc05b18633d46ecf5 [2023-11-24 23:57:34,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:57:35,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:57:35,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:57:35,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:57:35,007 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:57:35,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2023-11-24 23:57:38,128 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:57:38,947 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:57:38,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2023-11-24 23:57:39,013 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/data/260928a46/1e73225dc8a647b1ba42df9f7eb329a4/FLAGd27007ebb [2023-11-24 23:57:39,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/data/260928a46/1e73225dc8a647b1ba42df9f7eb329a4 [2023-11-24 23:57:39,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:57:39,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:57:39,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:39,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:57:39,048 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:57:39,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:39" (1/1) ... [2023-11-24 23:57:39,050 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7732ed40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:39, skipping insertion in model container [2023-11-24 23:57:39,050 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:57:39" (1/1) ... [2023-11-24 23:57:39,253 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:57:42,838 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2023-11-24 23:57:42,846 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2023-11-24 23:57:42,846 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2023-11-24 23:57:42,847 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2023-11-24 23:57:42,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:42,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:57:43,093 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"); [6715] [2023-11-24 23:57:43,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6722] [2023-11-24 23:57:43,110 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/net/cfg80211.h"), "i" (3014), "i" (12UL)); [6951-6952] [2023-11-24 23:57:43,533 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470736,470749] [2023-11-24 23:57:43,533 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[470902,470915] [2023-11-24 23:57:43,534 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471066,471079] [2023-11-24 23:57:43,534 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_4674bed1-94d6-479c-bef8-82f731abb410/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i[471231,471244] [2023-11-24 23:57:43,543 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:57:43,983 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:57:43,991 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:57:43,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43 WrapperNode [2023-11-24 23:57:43,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:57:43,994 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:43,994 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:57:43,994 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:57:44,003 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,525 INFO L138 Inliner]: procedures = 410, calls = 4685, calls flagged for inlining = 227, calls inlined = 201, statements flattened = 9943 [2023-11-24 23:57:44,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:57:44,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:57:44,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:57:44,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:57:44,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:44,958 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:45,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:45,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:45,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:57:45,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:57:45,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:57:45,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:57:45,105 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (1/1) ... [2023-11-24 23:57:45,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:57:45,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:57:45,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:57:45,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4674bed1-94d6-479c-bef8-82f731abb410/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:57:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2023-11-24 23:57:45,191 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2023-11-24 23:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2023-11-24 23:57:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2023-11-24 23:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2023-11-24 23:57:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2023-11-24 23:57:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2023-11-24 23:57:45,193 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2023-11-24 23:57:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:57:45,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:57:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2023-11-24 23:57:45,194 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2023-11-24 23:57:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2023-11-24 23:57:45,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2023-11-24 23:57:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:57:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2023-11-24 23:57:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2023-11-24 23:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2023-11-24 23:57:45,198 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2023-11-24 23:57:45,198 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2023-11-24 23:57:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2023-11-24 23:57:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-24 23:57:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-24 23:57:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2023-11-24 23:57:45,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2023-11-24 23:57:45,199 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2023-11-24 23:57:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2023-11-24 23:57:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:57:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2023-11-24 23:57:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2023-11-24 23:57:45,200 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2023-11-24 23:57:45,200 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2023-11-24 23:57:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2023-11-24 23:57:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2023-11-24 23:57:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:57:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:57:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2023-11-24 23:57:45,201 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2023-11-24 23:57:45,201 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:57:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:57:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:57:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:57:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-24 23:57:45,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-24 23:57:45,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:57:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2023-11-24 23:57:45,203 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2023-11-24 23:57:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2023-11-24 23:57:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2023-11-24 23:57:45,204 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2023-11-24 23:57:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2023-11-24 23:57:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-24 23:57:45,205 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-24 23:57:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-24 23:57:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-24 23:57:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2023-11-24 23:57:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2023-11-24 23:57:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2023-11-24 23:57:45,206 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2023-11-24 23:57:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-24 23:57:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-24 23:57:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2023-11-24 23:57:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2023-11-24 23:57:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2023-11-24 23:57:45,208 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2023-11-24 23:57:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:57:45,208 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2023-11-24 23:57:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2023-11-24 23:57:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2023-11-24 23:57:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2023-11-24 23:57:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:57:45,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:57:45,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:57:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2023-11-24 23:57:45,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2023-11-24 23:57:45,210 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2023-11-24 23:57:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2023-11-24 23:57:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:57:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2023-11-24 23:57:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2023-11-24 23:57:45,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:57:45,211 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:57:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:57:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:57:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2023-11-24 23:57:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2023-11-24 23:57:45,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2023-11-24 23:57:45,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_command_lock_of_rndis_wlan_private [2023-11-24 23:57:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2023-11-24 23:57:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2023-11-24 23:57:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2023-11-24 23:57:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2023-11-24 23:57:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:57:45,213 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2023-11-24 23:57:45,213 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2023-11-24 23:57:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2023-11-24 23:57:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2023-11-24 23:57:45,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-24 23:57:45,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-24 23:57:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2023-11-24 23:57:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2023-11-24 23:57:45,215 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-24 23:57:45,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-24 23:57:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:57:45,216 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2023-11-24 23:57:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2023-11-24 23:57:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:57:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:57:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2023-11-24 23:57:45,217 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2023-11-24 23:57:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:57:45,217 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2023-11-24 23:57:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2023-11-24 23:57:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2023-11-24 23:57:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2023-11-24 23:57:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:57:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:57:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2023-11-24 23:57:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2023-11-24 23:57:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2023-11-24 23:57:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2023-11-24 23:57:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-24 23:57:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-24 23:57:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2023-11-24 23:57:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2023-11-24 23:57:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2023-11-24 23:57:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2023-11-24 23:57:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-24 23:57:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-24 23:57:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:57:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:57:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-24 23:57:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-24 23:57:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-24 23:57:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-24 23:57:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:57:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:57:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:57:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:57:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2023-11-24 23:57:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2023-11-24 23:57:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-11-24 23:57:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-11-24 23:57:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2023-11-24 23:57:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2023-11-24 23:57:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2023-11-24 23:57:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2023-11-24 23:57:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2023-11-24 23:57:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2023-11-24 23:57:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2023-11-24 23:57:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2023-11-24 23:57:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2023-11-24 23:57:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2023-11-24 23:57:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2023-11-24 23:57:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2023-11-24 23:57:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2023-11-24 23:57:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2023-11-24 23:57:45,312 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2023-11-24 23:57:45,312 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:57:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-24 23:57:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-24 23:57:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-24 23:57:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2023-11-24 23:57:45,313 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:57:45,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-24 23:57:45,314 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2023-11-24 23:57:45,314 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:57:45,315 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-24 23:57:45,315 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-24 23:57:45,316 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2023-11-24 23:57:45,316 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2023-11-24 23:57:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2023-11-24 23:57:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_command_lock_of_rndis_wlan_private [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2023-11-24 23:57:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-24 23:57:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-24 23:57:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2023-11-24 23:57:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2023-11-24 23:57:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:57:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:57:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-24 23:57:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-24 23:57:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2023-11-24 23:57:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2023-11-24 23:57:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2023-11-24 23:57:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2023-11-24 23:57:45,322 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2023-11-24 23:57:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2023-11-24 23:57:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2023-11-24 23:57:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2023-11-24 23:57:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2023-11-24 23:57:45,324 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2023-11-24 23:57:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2023-11-24 23:57:45,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:57:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-24 23:57:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-24 23:57:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2023-11-24 23:57:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2023-11-24 23:57:45,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:57:45,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:57:46,659 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:57:46,667 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:57:47,265 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:58:04,623 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:58:05,049 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:08,325 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:08,326 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:58:08,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:08 BoogieIcfgContainer [2023-11-24 23:58:08,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:08,338 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:08,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:08,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:08,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:57:39" (1/3) ... [2023-11-24 23:58:08,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bad9920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:08, skipping insertion in model container [2023-11-24 23:58:08,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:57:43" (2/3) ... [2023-11-24 23:58:08,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bad9920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:08, skipping insertion in model container [2023-11-24 23:58:08,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:08" (3/3) ... [2023-11-24 23:58:08,354 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-rndis_wlan.cil.i [2023-11-24 23:58:08,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:08,376 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-24 23:58:08,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:58:08,520 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@35ecf6c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:58:08,521 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-24 23:58:08,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 2355 states, 1454 states have (on average 1.314993122420908) internal successors, (1912), 1458 states have internal predecessors, (1912), 779 states have call successors, (779), 120 states have call predecessors, (779), 119 states have return successors, (771), 771 states have call predecessors, (771), 771 states have call successors, (771) [2023-11-24 23:58:08,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2023-11-24 23:58:08,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:08,600 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:58:08,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:58:08,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:08,610 INFO L85 PathProgramCache]: Analyzing trace with hash -169243146, now seen corresponding path program 1 times [2023-11-24 23:58:08,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:08,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148629722] [2023-11-24 23:58:08,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2023-11-24 23:58:10,493 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:10,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148629722] [2023-11-24 23:58:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148629722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:10,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:10,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:58:10,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507509509] [2023-11-24 23:58:10,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:10,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:58:10,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:58:10,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:58:10,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:10,553 INFO L87 Difference]: Start difference. First operand has 2355 states, 1454 states have (on average 1.314993122420908) internal successors, (1912), 1458 states have internal predecessors, (1912), 779 states have call successors, (779), 120 states have call predecessors, (779), 119 states have return successors, (771), 771 states have call predecessors, (771), 771 states have call successors, (771) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-11-24 23:58:14,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:58:17,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:58:19,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:58:20,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:58:20,130 INFO L93 Difference]: Finished difference Result 6835 states and 10334 transitions. [2023-11-24 23:58:20,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:58:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 384 [2023-11-24 23:58:20,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:58:20,213 INFO L225 Difference]: With dead ends: 6835 [2023-11-24 23:58:20,213 INFO L226 Difference]: Without dead ends: 4541 [2023-11-24 23:58:20,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:20,251 INFO L413 NwaCegarLoop]: 3066 mSDtfsCounter, 3258 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3258 SdHoareTripleChecker+Valid, 6082 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:58:20,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3258 Valid, 6082 Invalid, 830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 814 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2023-11-24 23:58:20,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4541 states. [2023-11-24 23:58:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4541 to 4537. [2023-11-24 23:58:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 2824 states have (on average 1.3119688385269122) internal successors, (3705), 2831 states have internal predecessors, (3705), 1476 states have call successors, (1476), 235 states have call predecessors, (1476), 234 states have return successors, (1472), 1472 states have call predecessors, (1472), 1472 states have call successors, (1472) [2023-11-24 23:58:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6653 transitions. [2023-11-24 23:58:20,732 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6653 transitions. Word has length 384 [2023-11-24 23:58:20,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:58:20,735 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 6653 transitions. [2023-11-24 23:58:20,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-11-24 23:58:20,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6653 transitions. [2023-11-24 23:58:20,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2023-11-24 23:58:20,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:58:20,752 INFO L195 NwaCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:58:20,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:58:20,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-24 23:58:20,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:58:20,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1211239485, now seen corresponding path program 1 times [2023-11-24 23:58:20,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:58:20,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216290647] [2023-11-24 23:58:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:58:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:58:21,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:58:21,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2023-11-24 23:58:21,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:58:21,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216290647] [2023-11-24 23:58:21,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216290647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:58:21,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:58:21,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:58:21,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146139484] [2023-11-24 23:58:21,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:58:21,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:58:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:58:21,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:58:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:58:21,906 INFO L87 Difference]: Start difference. First operand 4537 states and 6653 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42)