./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire --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 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:54,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:54,523 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:54,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:54,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:54,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:54,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:54,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:54,584 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:54,589 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:54,590 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:54,591 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:54,592 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:54,593 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:54,594 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:54,594 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:54,595 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:54,595 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:54,595 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:54,596 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:54,596 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:54,597 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:54,597 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:54,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:54,598 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:54,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:54,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:54,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:54,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:54,600 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:54,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:54,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:54,602 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:54,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:54,602 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:54,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:54,603 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:54,603 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:54,603 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:54,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:54,604 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:54,604 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:54,604 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:54,604 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:54,605 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_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f8b1c7c83cbc8f75e845878e12835fe6569e3675eb400909d1669023ab04c0d [2023-11-23 21:18:54,925 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:54,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:54,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:54,965 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:54,966 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:54,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2023-11-23 21:18:58,194 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:58,971 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:58,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2023-11-23 21:18:59,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/data/8ff2d4772/8bd717f035114de4a1dacbfa62eea9fd/FLAG812db018e [2023-11-23 21:18:59,082 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/data/8ff2d4772/8bd717f035114de4a1dacbfa62eea9fd [2023-11-23 21:18:59,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:59,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:59,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:59,094 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:59,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:59,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:59" (1/1) ... [2023-11-23 21:18:59,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@112d455f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:59, skipping insertion in model container [2023-11-23 21:18:59,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:59" (1/1) ... [2023-11-23 21:18:59,293 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:04,209 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2023-11-23 21:19:04,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:04,343 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:04,548 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"); [6500] [2023-11-23 21:19:04,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6507] [2023-11-23 21:19:04,551 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6515-6516] [2023-11-23 21:19:04,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6524-6525] [2023-11-23 21:19:05,190 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i[448815,448828] [2023-11-23 21:19:05,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:05,603 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:19:05,612 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:05,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05 WrapperNode [2023-11-23 21:19:05,614 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:05,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:05,615 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:05,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:05,624 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:05,815 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,178 INFO L138 Inliner]: procedures = 490, calls = 4997, calls flagged for inlining = 140, calls inlined = 118, statements flattened = 7659 [2023-11-23 21:19:06,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:06,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:06,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:06,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:06,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,268 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,549 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:06,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:06,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:06,630 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:06,631 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (1/1) ... [2023-11-23 21:19:06,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:06,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:06,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:06,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9140f595-a14d-4b0b-976a-b0eaca4cc30c/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:06,727 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-11-23 21:19:06,727 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-11-23 21:19:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_prepare_pkt [2023-11-23 21:19:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_prepare_pkt [2023-11-23 21:19:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:19:06,728 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:19:06,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-23 21:19:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-23 21:19:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_setup [2023-11-23 21:19:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_setup [2023-11-23 21:19:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-23 21:19:06,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-23 21:19:06,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:19:06,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:19:06,730 INFO L130 BoogieDeclarations]: Found specification of procedure ll_dequeue [2023-11-23 21:19:06,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_dequeue [2023-11-23 21:19:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_close [2023-11-23 21:19:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_close [2023-11-23 21:19:06,732 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_3 [2023-11-23 21:19:06,732 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_3 [2023-11-23 21:19:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:19:06,733 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:19:06,733 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:19:06,734 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:19:06,734 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_flush [2023-11-23 21:19:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_flush [2023-11-23 21:19:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure ath_dequeue [2023-11-23 21:19:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_dequeue [2023-11-23 21:19:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2023-11-23 21:19:06,735 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2023-11-23 21:19:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-23 21:19:06,735 INFO L130 BoogieDeclarations]: Found specification of procedure h5_link_control [2023-11-23 21:19:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_link_control [2023-11-23 21:19:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:19:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:19:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:19:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:19:06,736 INFO L130 BoogieDeclarations]: Found specification of procedure bt_skb_alloc___1 [2023-11-23 21:19:06,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_skb_alloc___1 [2023-11-23 21:19:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2023-11-23 21:19:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2023-11-23 21:19:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure h4_enqueue [2023-11-23 21:19:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_enqueue [2023-11-23 21:19:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-11-23 21:19:06,737 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-11-23 21:19:06,737 INFO L130 BoogieDeclarations]: Found specification of procedure ath_hci_uart_work [2023-11-23 21:19:06,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_hci_uart_work [2023-11-23 21:19:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure btbcm_set_bdaddr [2023-11-23 21:19:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_setup [2023-11-23 21:19:06,738 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_setup [2023-11-23 21:19:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:19:06,738 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:19:06,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:19:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:19:06,739 INFO L130 BoogieDeclarations]: Found specification of procedure __ll_do_awake [2023-11-23 21:19:06,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __ll_do_awake [2023-11-23 21:19:06,740 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2023-11-23 21:19:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2023-11-23 21:19:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure h5_peer_reset [2023-11-23 21:19:06,741 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_peer_reset [2023-11-23 21:19:06,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure h5_enqueue [2023-11-23 21:19:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_enqueue [2023-11-23 21:19:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_complete_rx_pkt [2023-11-23 21:19:06,742 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_complete_rx_pkt [2023-11-23 21:19:06,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:19:06,743 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:19:06,743 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_unregister_proto [2023-11-23 21:19:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_unregister_proto [2023-11-23 21:19:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 21:19:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 21:19:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure hci_get_drvdata [2023-11-23 21:19:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_get_drvdata [2023-11-23 21:19:06,744 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_close [2023-11-23 21:19:06,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_close [2023-11-23 21:19:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure btintel_set_bdaddr [2023-11-23 21:19:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-11-23 21:19:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-11-23 21:19:06,745 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_recv [2023-11-23 21:19:06,745 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_recv [2023-11-23 21:19:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_register_proto [2023-11-23 21:19:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_register_proto [2023-11-23 21:19:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_recv [2023-11-23 21:19:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_recv [2023-11-23 21:19:06,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:19:06,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:19:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_flush [2023-11-23 21:19:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_flush [2023-11-23 21:19:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2023-11-23 21:19:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2023-11-23 21:19:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2023-11-23 21:19:06,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2023-11-23 21:19:06,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure bscp_get_crc [2023-11-23 21:19:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure bscp_get_crc [2023-11-23 21:19:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:19:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:19:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:06,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:06,748 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2023-11-23 21:19:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2023-11-23 21:19:06,749 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_init_work [2023-11-23 21:19:06,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_init_work [2023-11-23 21:19:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure ll_close [2023-11-23 21:19:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_close [2023-11-23 21:19:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:19:06,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:19:06,750 INFO L130 BoogieDeclarations]: Found specification of procedure hci_register_dev [2023-11-23 21:19:06,751 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_register_dev [2023-11-23 21:19:06,751 INFO L130 BoogieDeclarations]: Found specification of procedure send_hcill_cmd [2023-11-23 21:19:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure send_hcill_cmd [2023-11-23 21:19:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:19:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:19:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure ath_flush [2023-11-23 21:19:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_flush [2023-11-23 21:19:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_msgdelim [2023-11-23 21:19:06,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_msgdelim [2023-11-23 21:19:06,752 INFO L130 BoogieDeclarations]: Found specification of procedure h4_dequeue [2023-11-23 21:19:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_dequeue [2023-11-23 21:19:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure ath_wakeup_ar3k [2023-11-23 21:19:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_wakeup_ar3k [2023-11-23 21:19:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure h5_prepare_pkt [2023-11-23 21:19:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_prepare_pkt [2023-11-23 21:19:06,753 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-23 21:19:06,753 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-23 21:19:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:19:06,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:19:06,754 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_open [2023-11-23 21:19:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_open [2023-11-23 21:19:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-23 21:19:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-23 21:19:06,755 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_close [2023-11-23 21:19:06,755 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_close [2023-11-23 21:19:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:19:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:19:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure h5_cfg_field [2023-11-23 21:19:06,756 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_cfg_field [2023-11-23 21:19:06,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:19:06,760 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:19:06,761 INFO L130 BoogieDeclarations]: Found specification of procedure h5_flush [2023-11-23 21:19:06,761 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_flush [2023-11-23 21:19:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:19:06,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:19:06,763 INFO L130 BoogieDeclarations]: Found specification of procedure ll_check_data_len [2023-11-23 21:19:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_check_data_len [2023-11-23 21:19:06,764 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2023-11-23 21:19:06,764 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2023-11-23 21:19:06,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:19:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:19:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:19:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:19:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_one_byte [2023-11-23 21:19:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_one_byte [2023-11-23 21:19:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-23 21:19:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-23 21:19:06,770 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-23 21:19:06,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-23 21:19:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_set_baudrate [2023-11-23 21:19:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_set_baudrate [2023-11-23 21:19:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure bt_err [2023-11-23 21:19:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_err [2023-11-23 21:19:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_8 [2023-11-23 21:19:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_8 [2023-11-23 21:19:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_6 [2023-11-23 21:19:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_6 [2023-11-23 21:19:06,771 INFO L130 BoogieDeclarations]: Found specification of procedure ath_open [2023-11-23 21:19:06,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_open [2023-11-23 21:19:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ath_setup [2023-11-23 21:19:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_setup [2023-11-23 21:19:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:19:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:19:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_dequeue [2023-11-23 21:19:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_dequeue [2023-11-23 21:19:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 21:19:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 21:19:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure hci_free_dev [2023-11-23 21:19:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_free_dev [2023-11-23 21:19:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2023-11-23 21:19:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2023-11-23 21:19:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:19:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:19:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure h4_open [2023-11-23 21:19:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_open [2023-11-23 21:19:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-23 21:19:06,773 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-23 21:19:06,773 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-23 21:19:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-23 21:19:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_send_frame [2023-11-23 21:19:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_send_frame [2023-11-23 21:19:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure __hci_cmd_sync [2023-11-23 21:19:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __hci_cmd_sync [2023-11-23 21:19:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure ath_close [2023-11-23 21:19:06,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_close [2023-11-23 21:19:06,774 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_crc_update [2023-11-23 21:19:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_crc_update [2023-11-23 21:19:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:19:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:19:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:19:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:19:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2023-11-23 21:19:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2023-11-23 21:19:06,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-23 21:19:06,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-23 21:19:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure hci_recv_frame [2023-11-23 21:19:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_recv_frame [2023-11-23 21:19:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:19:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure h4_close [2023-11-23 21:19:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_close [2023-11-23 21:19:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_3 [2023-11-23 21:19:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_3 [2023-11-23 21:19:06,776 INFO L130 BoogieDeclarations]: Found specification of procedure h5_reset_rx [2023-11-23 21:19:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_reset_rx [2023-11-23 21:19:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-11-23 21:19:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-11-23 21:19:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_termios [2023-11-23 21:19:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_termios [2023-11-23 21:19:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv [2023-11-23 21:19:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv [2023-11-23 21:19:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:19:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:19:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:19:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:19:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-23 21:19:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-23 21:19:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure ath_recv [2023-11-23 21:19:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_recv [2023-11-23 21:19:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_flush [2023-11-23 21:19:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_flush [2023-11-23 21:19:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure h5_close [2023-11-23 21:19:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_close [2023-11-23 21:19:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_dequeue [2023-11-23 21:19:06,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_dequeue [2023-11-23 21:19:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:19:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:19:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_slip_one_byte [2023-11-23 21:19:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_slip_one_byte [2023-11-23 21:19:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_open [2023-11-23 21:19:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_open [2023-11-23 21:19:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure h5_dequeue [2023-11-23 21:19:06,779 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_dequeue [2023-11-23 21:19:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure h5_slip_delim [2023-11-23 21:19:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_slip_delim [2023-11-23 21:19:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_close [2023-11-23 21:19:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_close [2023-11-23 21:19:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-23 21:19:06,780 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-23 21:19:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure ath_enqueue [2023-11-23 21:19:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ath_enqueue [2023-11-23 21:19:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure h5_open [2023-11-23 21:19:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_open [2023-11-23 21:19:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-23 21:19:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-23 21:19:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ll_enqueue [2023-11-23 21:19:06,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_enqueue [2023-11-23 21:19:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:19:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:19:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure h4_recv_buf [2023-11-23 21:19:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_recv_buf [2023-11-23 21:19:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:19:06,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:19:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2023-11-23 21:19:06,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2023-11-23 21:19:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-23 21:19:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-23 21:19:06,787 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:19:06,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:19:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:19:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:19:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2023-11-23 21:19:06,788 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2023-11-23 21:19:06,788 INFO L130 BoogieDeclarations]: Found specification of procedure h5_recv [2023-11-23 21:19:06,789 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_recv [2023-11-23 21:19:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure ll_open [2023-11-23 21:19:06,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_open [2023-11-23 21:19:06,790 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tx_wakeup [2023-11-23 21:19:06,790 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tx_wakeup [2023-11-23 21:19:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-23 21:19:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-23 21:19:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:19:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:19:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_set_baudrate [2023-11-23 21:19:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_set_baudrate [2023-11-23 21:19:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure ll_flush [2023-11-23 21:19:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_flush [2023-11-23 21:19:06,791 INFO L130 BoogieDeclarations]: Found specification of procedure bcm_enqueue [2023-11-23 21:19:06,791 INFO L138 BoogieDeclarations]: Found implementation of procedure bcm_enqueue [2023-11-23 21:19:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure h5_complete_rx_pkt [2023-11-23 21:19:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure h5_complete_rx_pkt [2023-11-23 21:19:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure ll_recv [2023-11-23 21:19:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ll_recv [2023-11-23 21:19:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_write_work [2023-11-23 21:19:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_write_work [2023-11-23 21:19:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:19:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:19:06,792 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-23 21:19:06,792 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-23 21:19:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-11-23 21:19:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-11-23 21:19:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure hci_uart_tty_open [2023-11-23 21:19:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure hci_uart_tty_open [2023-11-23 21:19:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure bcsp_enqueue [2023-11-23 21:19:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure bcsp_enqueue [2023-11-23 21:19:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-23 21:19:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-23 21:19:06,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:19:06,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:19:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-11-23 21:19:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-11-23 21:19:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure bt_info [2023-11-23 21:19:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure bt_info [2023-11-23 21:19:06,794 INFO L130 BoogieDeclarations]: Found specification of procedure h4_flush [2023-11-23 21:19:06,794 INFO L138 BoogieDeclarations]: Found implementation of procedure h4_flush [2023-11-23 21:19:07,962 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:07,968 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:08,842 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:19:21,781 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:19:24,082 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:19:24,082 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:19:24,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:24 BoogieIcfgContainer [2023-11-23 21:19:24,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:19:24,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:19:24,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:19:24,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:19:24,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:59" (1/3) ... [2023-11-23 21:19:24,095 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ff3135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:24, skipping insertion in model container [2023-11-23 21:19:24,095 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:05" (2/3) ... [2023-11-23 21:19:24,096 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25ff3135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:19:24, skipping insertion in model container [2023-11-23 21:19:24,096 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:19:24" (3/3) ... [2023-11-23 21:19:24,099 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--bluetooth--hci_uart.ko-entry_point.cil.out.i [2023-11-23 21:19:24,119 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:19:24,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:19:24,229 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:19:24,236 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24d9f26c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:19:24,236 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:19:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 2537 states, 1547 states have (on average 1.3703943115707822) internal successors, (2120), 1663 states have internal predecessors, (2120), 838 states have call successors, (838), 151 states have call predecessors, (838), 150 states have return successors, (828), 813 states have call predecessors, (828), 828 states have call successors, (828) [2023-11-23 21:19:24,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:19:24,277 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:24,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:24,278 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:24,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash -804099830, now seen corresponding path program 1 times [2023-11-23 21:19:24,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:24,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660178711] [2023-11-23 21:19:24,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:24,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:26,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:19:26,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:26,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660178711] [2023-11-23 21:19:26,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660178711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:26,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:26,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:19:26,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294136439] [2023-11-23 21:19:26,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:26,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:19:26,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:19:26,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:19:26,419 INFO L87 Difference]: Start difference. First operand has 2537 states, 1547 states have (on average 1.3703943115707822) internal successors, (2120), 1663 states have internal predecessors, (2120), 838 states have call successors, (838), 151 states have call predecessors, (838), 150 states have return successors, (828), 813 states have call predecessors, (828), 828 states have call successors, (828) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:19:29,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:31,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:34,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:35,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:37,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:40,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:41,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:19:42,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:19:42,097 INFO L93 Difference]: Finished difference Result 5271 states and 7934 transitions. [2023-11-23 21:19:42,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:19:42,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2023-11-23 21:19:42,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:19:42,146 INFO L225 Difference]: With dead ends: 5271 [2023-11-23 21:19:42,146 INFO L226 Difference]: Without dead ends: 2705 [2023-11-23 21:19:42,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:19:42,171 INFO L413 NwaCegarLoop]: 3636 mSDtfsCounter, 3479 mSDsluCounter, 4089 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3479 SdHoareTripleChecker+Valid, 7725 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:19:42,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3479 Valid, 7725 Invalid, 594 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 589 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2023-11-23 21:19:42,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2023-11-23 21:19:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2698. [2023-11-23 21:19:42,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2698 states, 1649 states have (on average 1.3547604608853852) internal successors, (2234), 1754 states have internal predecessors, (2234), 866 states have call successors, (866), 183 states have call predecessors, (866), 182 states have return successors, (866), 848 states have call predecessors, (866), 865 states have call successors, (866) [2023-11-23 21:19:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2698 states to 2698 states and 3966 transitions. [2023-11-23 21:19:42,444 INFO L78 Accepts]: Start accepts. Automaton has 2698 states and 3966 transitions. Word has length 45 [2023-11-23 21:19:42,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:19:42,445 INFO L495 AbstractCegarLoop]: Abstraction has 2698 states and 3966 transitions. [2023-11-23 21:19:42,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:19:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2698 states and 3966 transitions. [2023-11-23 21:19:42,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 21:19:42,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:19:42,461 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:19:42,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:19:42,462 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:19:42,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:19:42,463 INFO L85 PathProgramCache]: Analyzing trace with hash -237573164, now seen corresponding path program 1 times [2023-11-23 21:19:42,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:19:42,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672674992] [2023-11-23 21:19:42,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:19:42,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:19:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:19:44,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:19:44,211 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:19:44,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672674992] [2023-11-23 21:19:44,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672674992] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:19:44,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:19:44,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 21:19:44,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579311839] [2023-11-23 21:19:44,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:19:44,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:19:44,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:19:44,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:19:44,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:19:44,218 INFO L87 Difference]: Start difference. First operand 2698 states and 3966 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (6), 3 states have call predecessors, (6), 1 states have call successors, (6)