./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje --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 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:03:02,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:03:02,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:03:02,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:03:02,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:03:02,251 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:03:02,252 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:03:02,252 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:03:02,253 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:03:02,254 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:03:02,254 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:03:02,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:03:02,255 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:03:02,255 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:03:02,256 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:03:02,256 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:03:02,257 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:03:02,257 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:03:02,258 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:03:02,258 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:03:02,259 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:03:02,259 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:03:02,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:03:02,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:03:02,261 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:03:02,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:03:02,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:03:02,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:03:02,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:03:02,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:03:02,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:03:02,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:03:02,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:03:02,264 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:03:02,265 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:03:02,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:02,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:03:02,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:03:02,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:03:02,267 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:03:02,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:03:02,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:03:02,269 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:03:02,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:03:02,269 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_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6a79b35c65887feb0e3310d99b98c096a3638844b86132f83b5aa5c0d07bcad8 [2024-11-09 07:03:02,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:03:02,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:03:02,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:03:02,615 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:03:02,615 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:03:02,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i Unable to find full path for "g++" [2024-11-09 07:03:04,857 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:03:05,698 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:03:05,699 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2024-11-09 07:03:05,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/data/ced55f6ec/442b81bba20f4b528db19a1994d81f0c/FLAGc0d577dcf [2024-11-09 07:03:05,802 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/data/ced55f6ec/442b81bba20f4b528db19a1994d81f0c [2024-11-09 07:03:05,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:03:05,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:03:05,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:05,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:03:05,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:03:05,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:05" (1/1) ... [2024-11-09 07:03:05,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667c65c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:05, skipping insertion in model container [2024-11-09 07:03:05,819 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:05" (1/1) ... [2024-11-09 07:03:06,016 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:03:10,181 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2024-11-09 07:03:10,186 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2024-11-09 07:03:10,188 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2024-11-09 07:03:10,188 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2024-11-09 07:03:10,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:10,281 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:03:10,472 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"); [6701] [2024-11-09 07:03:10,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [6708] [2024-11-09 07:03:10,483 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)); [6946-6947] [2024-11-09 07:03:10,881 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490366,490379] [2024-11-09 07:03:10,882 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490535,490548] [2024-11-09 07:03:10,882 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490702,490715] [2024-11-09 07:03:10,883 WARN L250 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_1531aa53-4221-4304-a200-176ec8631c80/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i[490870,490883] [2024-11-09 07:03:10,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:11,145 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:03:11,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11 WrapperNode [2024-11-09 07:03:11,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:11,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:11,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:03:11,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:03:11,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,594 INFO L138 Inliner]: procedures = 473, calls = 4782, calls flagged for inlining = 229, calls inlined = 199, statements flattened = 10009 [2024-11-09 07:03:11,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:11,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:03:11,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:03:11,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:03:11,606 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,675 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,852 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:11,977 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:12,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:12,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:12,128 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:03:12,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:03:12,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:03:12,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:03:12,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (1/1) ... [2024-11-09 07:03:12,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:12,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:12,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:03:12,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1531aa53-4221-4304-a200-176ec8631c80/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:03:12,203 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_reset [2024-11-09 07:03:12,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_reset [2024-11-09 07:03:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2024-11-09 07:03:12,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2024-11-09 07:03:12,204 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_stop [2024-11-09 07:03:12,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_stop [2024-11-09 07:03:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_config_parameter_str [2024-11-09 07:03:12,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_config_parameter_str [2024-11-09 07:03:12,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 07:03:12,206 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 07:03:12,206 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_inform_bss [2024-11-09 07:03:12,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_inform_bss [2024-11-09 07:03:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_pause_rx [2024-11-09 07:03:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_pause_rx [2024-11-09 07:03:12,207 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:03:12,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:03:12,208 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_tx_fixup [2024-11-09 07:03:12,209 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_tx_fixup [2024-11-09 07:03:12,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 07:03:12,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-09 07:03:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_bind [2024-11-09 07:03:12,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_bind [2024-11-09 07:03:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_set_multicast_list [2024-11-09 07:03:12,211 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_set_multicast_list [2024-11-09 07:03:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 07:03:12,211 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 07:03:12,211 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_purge_paused_rxq [2024-11-09 07:03:12,211 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_purge_paused_rxq [2024-11-09 07:03:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-09 07:03:12,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-09 07:03:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_unbind [2024-11-09 07:03:12,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_unbind [2024-11-09 07:03:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure set_encr_mode [2024-11-09 07:03:12,212 INFO L138 BoogieDeclarations]: Found implementation of procedure set_encr_mode [2024-11-09 07:03:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure get_rndis_wlan_priv [2024-11-09 07:03:12,212 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rndis_wlan_priv [2024-11-09 07:03:12,212 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 07:03:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 07:03:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2024-11-09 07:03:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2024-11-09 07:03:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 07:03:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 07:03:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 07:03:12,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 07:03:12,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:03:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure set_infra_mode [2024-11-09 07:03:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure set_infra_mode [2024-11-09 07:03:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_command [2024-11-09 07:03:12,216 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_command [2024-11-09 07:03:12,216 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_scan_done [2024-11-09 07:03:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_scan_done [2024-11-09 07:03:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2024-11-09 07:03:12,217 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2024-11-09 07:03:12,217 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 07:03:12,218 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 07:03:12,218 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_fill_station_info [2024-11-09 07:03:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_fill_station_info [2024-11-09 07:03:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure unknown_early_init [2024-11-09 07:03:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure unknown_early_init [2024-11-09 07:03:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 07:03:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 07:03:12,219 INFO L130 BoogieDeclarations]: Found specification of procedure disassociate [2024-11-09 07:03:12,219 INFO L138 BoogieDeclarations]: Found implementation of procedure disassociate [2024-11-09 07:03:12,220 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_relative [2024-11-09 07:03:12,220 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_relative [2024-11-09 07:03:12,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 07:03:12,220 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_query_oid [2024-11-09 07:03:12,220 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_query_oid [2024-11-09 07:03:12,220 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2024-11-09 07:03:12,221 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2024-11-09 07:03:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:03:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 07:03:12,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 07:03:12,222 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2024-11-09 07:03:12,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2024-11-09 07:03:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_free [2024-11-09 07:03:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_free [2024-11-09 07:03:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:03:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure is_wpa_key [2024-11-09 07:03:12,224 INFO L138 BoogieDeclarations]: Found implementation of procedure is_wpa_key [2024-11-09 07:03:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 07:03:12,224 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 07:03:12,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 07:03:12,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 07:03:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_priv [2024-11-09 07:03:12,225 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_priv [2024-11-09 07:03:12,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 07:03:12,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-09 07:03:12,226 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_check_bssid_list [2024-11-09 07:03:12,226 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_check_bssid_list [2024-11-09 07:03:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure __toupper [2024-11-09 07:03:12,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __toupper [2024-11-09 07:03:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:03:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320b_early_init [2024-11-09 07:03:12,227 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320b_early_init [2024-11-09 07:03:12,227 INFO L130 BoogieDeclarations]: Found specification of procedure set_channel [2024-11-09 07:03:12,227 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channel [2024-11-09 07:03:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 07:03:12,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 07:03:12,228 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_status [2024-11-09 07:03:12,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_status [2024-11-09 07:03:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-09 07:03:12,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-09 07:03:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:03:12,229 INFO L130 BoogieDeclarations]: Found specification of procedure level_to_qual [2024-11-09 07:03:12,230 INFO L138 BoogieDeclarations]: Found implementation of procedure level_to_qual [2024-11-09 07:03:12,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:03:12,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:03:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure set_essid [2024-11-09 07:03:12,231 INFO L138 BoogieDeclarations]: Found implementation of procedure set_essid [2024-11-09 07:03:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:03:12,231 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_put_bss [2024-11-09 07:03:12,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_put_bss [2024-11-09 07:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_start_bssid_list_scan [2024-11-09 07:03:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_start_bssid_list_scan [2024-11-09 07:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:03:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2024-11-09 07:03:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2024-11-09 07:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_copy_module_params [2024-11-09 07:03:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_copy_module_params [2024-11-09 07:03:12,232 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2024-11-09 07:03:12,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2024-11-09 07:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_auth_mode [2024-11-09 07:03:12,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_auth_mode [2024-11-09 07:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2024-11-09 07:03:12,233 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2024-11-09 07:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 07:03:12,233 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 07:03:12,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:03:12,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:03:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:03:12,234 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:03:12,234 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-09 07:03:12,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-09 07:03:12,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 07:03:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:03:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:03:12,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:03:12,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2024-11-09 07:03:12,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rndis_wlan_driver_exit_11_2 [2024-11-09 07:03:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2024-11-09 07:03:12,237 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2024-11-09 07:03:12,237 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_cipher_to_alg [2024-11-09 07:03:12,238 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_cipher_to_alg [2024-11-09 07:03:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 07:03:12,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-09 07:03:12,238 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 07:03:12,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 07:03:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_channel [2024-11-09 07:03:12,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_channel [2024-11-09 07:03:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2024-11-09 07:03:12,239 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2024-11-09 07:03:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure add_wep_key [2024-11-09 07:03:12,239 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wep_key [2024-11-09 07:03:12,239 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2024-11-09 07:03:12,240 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2024-11-09 07:03:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure is_broadcast_ether_addr [2024-11-09 07:03:12,240 INFO L138 BoogieDeclarations]: Found implementation of procedure is_broadcast_ether_addr [2024-11-09 07:03:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 07:03:12,240 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 07:03:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure set_bssid [2024-11-09 07:03:12,240 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bssid [2024-11-09 07:03:12,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 07:03:12,241 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 07:03:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2024-11-09 07:03:12,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2024-11-09 07:03:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2024-11-09 07:03:12,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2024-11-09 07:03:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:03:12,241 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 07:03:12,241 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 07:03:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bssid [2024-11-09 07:03:12,242 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bssid [2024-11-09 07:03:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:03:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure set_device_pmkids [2024-11-09 07:03:12,242 INFO L138 BoogieDeclarations]: Found implementation of procedure set_device_pmkids [2024-11-09 07:03:12,242 INFO L130 BoogieDeclarations]: Found specification of procedure get_device_pmkids [2024-11-09 07:03:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure get_device_pmkids [2024-11-09 07:03:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure netif_addr_unlock_bh [2024-11-09 07:03:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_addr_unlock_bh [2024-11-09 07:03:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2024-11-09 07:03:12,243 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2024-11-09 07:03:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:03:12,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 07:03:12,244 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 07:03:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure next_bssid_list_item [2024-11-09 07:03:12,244 INFO L138 BoogieDeclarations]: Found implementation of procedure next_bssid_list_item [2024-11-09 07:03:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 07:03:12,244 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 07:03:12,244 INFO L130 BoogieDeclarations]: Found specification of procedure set_priv_filter [2024-11-09 07:03:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure set_priv_filter [2024-11-09 07:03:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 07:03:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 07:03:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 07:03:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 07:03:12,245 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_wiphy_params [2024-11-09 07:03:12,245 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_wiphy_params [2024-11-09 07:03:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 07:03:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 07:03:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2024-11-09 07:03:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2024-11-09 07:03:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_7_4 [2024-11-09 07:03:12,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_7_4 [2024-11-09 07:03:12,246 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2024-11-09 07:03:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2024-11-09 07:03:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 07:03:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 07:03:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure oid_to_string [2024-11-09 07:03:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure oid_to_string [2024-11-09 07:03:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-09 07:03:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-09 07:03:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure deauthenticate [2024-11-09 07:03:12,247 INFO L138 BoogieDeclarations]: Found implementation of procedure deauthenticate [2024-11-09 07:03:12,247 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:03:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:03:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure bcm4320a_early_init [2024-11-09 07:03:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm4320a_early_init [2024-11-09 07:03:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure cfg80211_michael_mic_failure [2024-11-09 07:03:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure cfg80211_michael_mic_failure [2024-11-09 07:03:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure set_default_iw_params [2024-11-09 07:03:12,248 INFO L138 BoogieDeclarations]: Found implementation of procedure set_default_iw_params [2024-11-09 07:03:12,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:03:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_error_status [2024-11-09 07:03:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_error_status [2024-11-09 07:03:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:03:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:03:12,249 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume_rx [2024-11-09 07:03:12,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume_rx [2024-11-09 07:03:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2024-11-09 07:03:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2024-11-09 07:03:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-11-09 07:03:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-11-09 07:03:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure get_bcm4320_power_dbm [2024-11-09 07:03:12,250 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bcm4320_power_dbm [2024-11-09 07:03:12,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 07:03:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 07:03:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2024-11-09 07:03:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2024-11-09 07:03:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_rx_fixup [2024-11-09 07:03:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_rx_fixup [2024-11-09 07:03:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_set_oid [2024-11-09 07:03:12,251 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_set_oid [2024-11-09 07:03:12,251 INFO L130 BoogieDeclarations]: Found specification of procedure rndis_wlan_indication [2024-11-09 07:03:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rndis_wlan_indication [2024-11-09 07:03:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure get_bssid [2024-11-09 07:03:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure get_bssid [2024-11-09 07:03:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure is_associated [2024-11-09 07:03:12,252 INFO L138 BoogieDeclarations]: Found implementation of procedure is_associated [2024-11-09 07:03:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2024-11-09 07:03:12,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:03:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2024-11-09 07:03:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2024-11-09 07:03:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure debug_print_pmkids [2024-11-09 07:03:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_print_pmkids [2024-11-09 07:03:12,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 07:03:12,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 07:03:13,854 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:03:13,859 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:03:14,357 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:03:43,207 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 07:03:46,562 INFO L? ?]: Removed 3252 outVars from TransFormulas that were not future-live. [2024-11-09 07:03:46,562 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:03:49,556 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:03:49,556 INFO L316 CfgBuilder]: Removed 5 assume(true) statements. [2024-11-09 07:03:49,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:49 BoogieIcfgContainer [2024-11-09 07:03:49,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:03:49,559 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:03:49,559 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:03:49,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:03:49,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:03:05" (1/3) ... [2024-11-09 07:03:49,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e89ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:49, skipping insertion in model container [2024-11-09 07:03:49,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:11" (2/3) ... [2024-11-09 07:03:49,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e89ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:03:49, skipping insertion in model container [2024-11-09 07:03:49,564 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:03:49" (3/3) ... [2024-11-09 07:03:49,566 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2024-11-09 07:03:49,587 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:03:49,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-09 07:03:49,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:03:49,723 INFO L333 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, 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;@5868839a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:03:49,723 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-09 07:03:49,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 2364 states, 1454 states have (on average 1.3177441540577717) internal successors, (1916), 1458 states have internal predecessors, (1916), 788 states have call successors, (788), 120 states have call predecessors, (788), 119 states have return successors, (780), 780 states have call predecessors, (780), 780 states have call successors, (780) [2024-11-09 07:03:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-09 07:03:49,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:03:49,777 INFO L215 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] [2024-11-09 07:03:49,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:03:49,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:03:49,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2132368677, now seen corresponding path program 1 times [2024-11-09 07:03:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:03:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342316297] [2024-11-09 07:03:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:03:49,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:26,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5115 trivial. 0 not checked. [2024-11-09 07:05:28,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:28,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342316297] [2024-11-09 07:05:28,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342316297] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:28,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:28,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:05:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992372497] [2024-11-09 07:05:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:28,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:05:28,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:28,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:05:28,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:28,527 INFO L87 Difference]: Start difference. First operand has 2364 states, 1454 states have (on average 1.3177441540577717) internal successors, (1916), 1458 states have internal predecessors, (1916), 788 states have call successors, (788), 120 states have call predecessors, (788), 119 states have return successors, (780), 780 states have call predecessors, (780), 780 states have call successors, (780) 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) [2024-11-09 07:05:30,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:33,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:38,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:44,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:46,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:49,049 INFO L93 Difference]: Finished difference Result 6855 states and 10161 transitions. [2024-11-09 07:05:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:05:49,052 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 [2024-11-09 07:05:49,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:49,115 INFO L225 Difference]: With dead ends: 6855 [2024-11-09 07:05:49,115 INFO L226 Difference]: Without dead ends: 4552 [2024-11-09 07:05:49,135 INFO L431 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 [2024-11-09 07:05:49,141 INFO L432 NwaCegarLoop]: 3088 mSDtfsCounter, 3266 mSDsluCounter, 3038 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 6126 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:49,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 6126 Invalid, 830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 812 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2024-11-09 07:05:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4552 states. [2024-11-09 07:05:49,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4552 to 4548. [2024-11-09 07:05:49,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4548 states, 2824 states have (on average 1.3148016997167138) internal successors, (3713), 2831 states have internal predecessors, (3713), 1487 states have call successors, (1487), 235 states have call predecessors, (1487), 234 states have return successors, (1483), 1483 states have call predecessors, (1483), 1483 states have call successors, (1483) [2024-11-09 07:05:49,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4548 states to 4548 states and 6683 transitions. [2024-11-09 07:05:49,576 INFO L78 Accepts]: Start accepts. Automaton has 4548 states and 6683 transitions. Word has length 384 [2024-11-09 07:05:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:49,578 INFO L471 AbstractCegarLoop]: Abstraction has 4548 states and 6683 transitions. [2024-11-09 07:05:49,578 INFO L472 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) [2024-11-09 07:05:49,579 INFO L276 IsEmpty]: Start isEmpty. Operand 4548 states and 6683 transitions. [2024-11-09 07:05:49,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-09 07:05:49,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:49,604 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:49,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:05:49,605 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:05:49,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:49,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1658004534, now seen corresponding path program 1 times [2024-11-09 07:05:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:49,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834070445] [2024-11-09 07:05:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:49,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2024-11-09 07:07:37,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:37,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834070445] [2024-11-09 07:07:37,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834070445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:37,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:37,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:37,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109415370] [2024-11-09 07:07:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:37,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:37,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:37,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:37,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:37,997 INFO L87 Difference]: Start difference. First operand 4548 states and 6683 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:07:40,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:42,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:49,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:55,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:57,663 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 [] [2024-11-09 07:07:59,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:59,208 INFO L93 Difference]: Finished difference Result 11198 states and 16437 transitions. [2024-11-09 07:07:59,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:59,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 426 [2024-11-09 07:07:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:59,260 INFO L225 Difference]: With dead ends: 11198 [2024-11-09 07:07:59,260 INFO L226 Difference]: Without dead ends: 6723 [2024-11-09 07:07:59,285 INFO L431 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 [2024-11-09 07:07:59,286 INFO L432 NwaCegarLoop]: 3066 mSDtfsCounter, 3231 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3231 SdHoareTripleChecker+Valid, 6097 SdHoareTripleChecker+Invalid, 836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:59,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3231 Valid, 6097 Invalid, 836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 818 Invalid, 5 Unknown, 0 Unchecked, 20.8s Time] [2024-11-09 07:07:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6723 states. [2024-11-09 07:07:59,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6723 to 6697. [2024-11-09 07:07:59,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 4174 states have (on average 1.3133684714901772) internal successors, (5482), 4187 states have internal predecessors, (5482), 2166 states have call successors, (2166), 355 states have call predecessors, (2166), 354 states have return successors, (2162), 2157 states have call predecessors, (2162), 2162 states have call successors, (2162) [2024-11-09 07:07:59,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9810 transitions. [2024-11-09 07:07:59,701 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9810 transitions. Word has length 426 [2024-11-09 07:07:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:07:59,702 INFO L471 AbstractCegarLoop]: Abstraction has 6697 states and 9810 transitions. [2024-11-09 07:07:59,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:07:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9810 transitions. [2024-11-09 07:07:59,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-09 07:07:59,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:07:59,719 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:07:59,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:07:59,719 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:07:59,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:07:59,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1214911731, now seen corresponding path program 1 times [2024-11-09 07:07:59,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:07:59,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180525941] [2024-11-09 07:07:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:07:59,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:10:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2024-11-09 07:10:01,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:10:01,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180525941] [2024-11-09 07:10:01,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180525941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:10:01,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:10:01,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:10:01,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612490054] [2024-11-09 07:10:01,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:10:01,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:10:01,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:10:01,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:10:01,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:10:01,661 INFO L87 Difference]: Start difference. First operand 6697 states and 9810 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:10:03,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:06,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:14,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:16,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:18,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:10:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:10:21,541 INFO L93 Difference]: Finished difference Result 19679 states and 28820 transitions. [2024-11-09 07:10:21,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:10:21,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 434 [2024-11-09 07:10:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:10:21,673 INFO L225 Difference]: With dead ends: 19679 [2024-11-09 07:10:21,674 INFO L226 Difference]: Without dead ends: 13055 [2024-11-09 07:10:21,725 INFO L431 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 [2024-11-09 07:10:21,726 INFO L432 NwaCegarLoop]: 3073 mSDtfsCounter, 3186 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3186 SdHoareTripleChecker+Valid, 6108 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:10:21,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3186 Valid, 6108 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 814 Invalid, 5 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 07:10:21,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13055 states. [2024-11-09 07:10:22,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13055 to 13025. [2024-11-09 07:10:22,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13025 states, 8145 states have (on average 1.3118477593615716) internal successors, (10685), 8175 states have internal predecessors, (10685), 4184 states have call successors, (4184), 694 states have call predecessors, (4184), 693 states have return successors, (4180), 4161 states have call predecessors, (4180), 4180 states have call successors, (4180) [2024-11-09 07:10:22,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13025 states to 13025 states and 19049 transitions. [2024-11-09 07:10:22,646 INFO L78 Accepts]: Start accepts. Automaton has 13025 states and 19049 transitions. Word has length 434 [2024-11-09 07:10:22,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:10:22,649 INFO L471 AbstractCegarLoop]: Abstraction has 13025 states and 19049 transitions. [2024-11-09 07:10:22,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:10:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 13025 states and 19049 transitions. [2024-11-09 07:10:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-09 07:10:22,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:10:22,684 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:10:22,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:10:22,685 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:10:22,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:10:22,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1086386897, now seen corresponding path program 1 times [2024-11-09 07:10:22,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:10:22,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928170172] [2024-11-09 07:10:22,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:10:22,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:28,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2024-11-09 07:12:28,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:28,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928170172] [2024-11-09 07:12:28,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928170172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:28,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:28,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:28,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295763319] [2024-11-09 07:12:28,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:28,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:28,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:28,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:28,345 INFO L87 Difference]: Start difference. First operand 13025 states and 19049 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:12:30,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:32,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:38,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:44,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:12:46,792 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 [] [2024-11-09 07:12:48,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:48,486 INFO L93 Difference]: Finished difference Result 34250 states and 50042 transitions. [2024-11-09 07:12:48,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:48,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 427 [2024-11-09 07:12:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:48,664 INFO L225 Difference]: With dead ends: 34250 [2024-11-09 07:12:48,664 INFO L226 Difference]: Without dead ends: 21298 [2024-11-09 07:12:48,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:48,754 INFO L432 NwaCegarLoop]: 3142 mSDtfsCounter, 3230 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 837 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 6173 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 837 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:48,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 6173 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 837 Invalid, 5 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 07:12:48,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21298 states. [2024-11-09 07:12:50,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21298 to 21270. [2024-11-09 07:12:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21270 states, 13328 states have (on average 1.3091986794717887) internal successors, (17449), 13386 states have internal predecessors, (17449), 6781 states have call successors, (6781), 1159 states have call predecessors, (6781), 1158 states have return successors, (6777), 6734 states have call predecessors, (6777), 6777 states have call successors, (6777) [2024-11-09 07:12:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21270 states to 21270 states and 31007 transitions. [2024-11-09 07:12:50,529 INFO L78 Accepts]: Start accepts. Automaton has 21270 states and 31007 transitions. Word has length 427 [2024-11-09 07:12:50,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:50,532 INFO L471 AbstractCegarLoop]: Abstraction has 21270 states and 31007 transitions. [2024-11-09 07:12:50,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:12:50,532 INFO L276 IsEmpty]: Start isEmpty. Operand 21270 states and 31007 transitions. [2024-11-09 07:12:50,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2024-11-09 07:12:50,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:50,548 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:50,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:12:50,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:12:50,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:50,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1192428746, now seen corresponding path program 1 times [2024-11-09 07:12:50,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:50,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424051074] [2024-11-09 07:12:50,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:50,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:14:35,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:14:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 5118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5118 trivial. 0 not checked. [2024-11-09 07:14:36,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:14:36,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424051074] [2024-11-09 07:14:36,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424051074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:14:36,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:14:36,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:14:36,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088920281] [2024-11-09 07:14:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:14:36,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:14:36,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:14:36,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:14:36,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:14:36,326 INFO L87 Difference]: Start difference. First operand 21270 states and 31007 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:14:38,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:40,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:45,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:53,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:55,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:14:57,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:14:57,360 INFO L93 Difference]: Finished difference Result 57905 states and 84458 transitions. [2024-11-09 07:14:57,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:14:57,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 428 [2024-11-09 07:14:57,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:14:57,654 INFO L225 Difference]: With dead ends: 57905 [2024-11-09 07:14:57,655 INFO L226 Difference]: Without dead ends: 36708 [2024-11-09 07:14:57,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:14:57,792 INFO L432 NwaCegarLoop]: 3486 mSDtfsCounter, 3229 mSDsluCounter, 3031 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3229 SdHoareTripleChecker+Valid, 6517 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2024-11-09 07:14:57,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3229 Valid, 6517 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 900 Invalid, 5 Unknown, 0 Unchecked, 19.9s Time] [2024-11-09 07:14:57,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36708 states. [2024-11-09 07:14:59,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36708 to 36680. [2024-11-09 07:14:59,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36680 states, 23052 states have (on average 1.3092573312510845) internal successors, (30181), 23166 states have internal predecessors, (30181), 11624 states have call successors, (11624), 2002 states have call predecessors, (11624), 2001 states have return successors, (11620), 11529 states have call predecessors, (11620), 11620 states have call successors, (11620) [2024-11-09 07:15:00,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36680 states to 36680 states and 53425 transitions. [2024-11-09 07:15:00,172 INFO L78 Accepts]: Start accepts. Automaton has 36680 states and 53425 transitions. Word has length 428 [2024-11-09 07:15:00,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:00,173 INFO L471 AbstractCegarLoop]: Abstraction has 36680 states and 53425 transitions. [2024-11-09 07:15:00,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-09 07:15:00,174 INFO L276 IsEmpty]: Start isEmpty. Operand 36680 states and 53425 transitions. [2024-11-09 07:15:00,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-09 07:15:00,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:00,185 INFO L215 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:00,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:15:00,186 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:15:00,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:00,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1825794334, now seen corresponding path program 1 times [2024-11-09 07:15:00,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:00,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302315481] [2024-11-09 07:15:00,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:00,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:37,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:39,961 INFO L134 CoverageAnalysis]: Checked inductivity of 5374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5374 trivial. 0 not checked. [2024-11-09 07:16:39,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:39,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302315481] [2024-11-09 07:16:39,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302315481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:39,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:39,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:16:39,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989680335] [2024-11-09 07:16:39,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:39,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:16:39,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:39,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:16:39,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:39,966 INFO L87 Difference]: Start difference. First operand 36680 states and 53425 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-09 07:16:42,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:44,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:46,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:54,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:56,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:16:58,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:17:04,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:04,963 INFO L93 Difference]: Finished difference Result 36686 states and 53430 transitions. [2024-11-09 07:17:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:17:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 432 [2024-11-09 07:17:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:05,201 INFO L225 Difference]: With dead ends: 36686 [2024-11-09 07:17:05,202 INFO L226 Difference]: Without dead ends: 36684 [2024-11-09 07:17:05,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:17:05,238 INFO L432 NwaCegarLoop]: 3059 mSDtfsCounter, 3351 mSDsluCounter, 6106 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3352 SdHoareTripleChecker+Valid, 9165 SdHoareTripleChecker+Invalid, 1190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:05,240 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3352 Valid, 9165 Invalid, 1190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1184 Invalid, 6 Unknown, 0 Unchecked, 23.8s Time] [2024-11-09 07:17:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36684 states. [2024-11-09 07:17:06,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36684 to 36684. [2024-11-09 07:17:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36684 states, 23055 states have (on average 1.3092170895684234) internal successors, (30184), 23169 states have internal predecessors, (30184), 11624 states have call successors, (11624), 2003 states have call predecessors, (11624), 2002 states have return successors, (11620), 11529 states have call predecessors, (11620), 11620 states have call successors, (11620) [2024-11-09 07:17:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36684 states to 36684 states and 53428 transitions. [2024-11-09 07:17:07,251 INFO L78 Accepts]: Start accepts. Automaton has 36684 states and 53428 transitions. Word has length 432 [2024-11-09 07:17:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:07,253 INFO L471 AbstractCegarLoop]: Abstraction has 36684 states and 53428 transitions. [2024-11-09 07:17:07,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-09 07:17:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 36684 states and 53428 transitions. [2024-11-09 07:17:07,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-09 07:17:07,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:07,267 INFO L215 NwaCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:07,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:17:07,267 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-09 07:17:07,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:07,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1585610114, now seen corresponding path program 1 times [2024-11-09 07:17:07,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:07,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443143160] [2024-11-09 07:17:07,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:07,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms