./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5 --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 f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:44:04,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:44:04,860 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:44:04,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:44:04,865 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:44:04,905 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:44:04,906 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:44:04,906 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:44:04,907 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:44:04,908 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:44:04,908 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:44:04,909 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:44:04,910 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:44:04,910 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:44:04,911 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:44:04,911 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:44:04,912 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:44:04,913 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:44:04,913 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:44:04,914 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:44:04,914 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:44:04,918 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:44:04,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:44:04,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:44:04,920 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:44:04,921 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:44:04,921 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:44:04,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:44:04,922 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:44:04,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:44:04,923 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:44:04,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:44:04,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:44:04,925 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:44:04,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:44:04,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:44:04,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:44:04,927 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:44:04,927 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:44:04,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:44:04,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:44:04,929 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:44:04,929 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:44:04,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:44:04,930 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_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2023-11-21 19:44:05,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:44:05,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:44:05,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:44:05,218 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:44:05,218 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:44:05,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-11-21 19:44:08,407 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:44:09,101 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:44:09,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-11-21 19:44:09,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/data/71a33c8b8/2c37331496b3410b9feb8d7c9e3b7c69/FLAG9ded6428a [2023-11-21 19:44:09,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/data/71a33c8b8/2c37331496b3410b9feb8d7c9e3b7c69 [2023-11-21 19:44:09,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:44:09,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:44:09,195 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:44:09,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:44:09,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:44:09,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:44:09" (1/1) ... [2023-11-21 19:44:09,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38392906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:09, skipping insertion in model container [2023-11-21 19:44:09,203 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:44:09" (1/1) ... [2023-11-21 19:44:09,385 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:44:10,684 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_fd8e699e-4eb1-4ea3-9009-40f94a47996b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2023-11-21 19:44:12,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:44:12,363 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:44:12,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [6923] [2023-11-21 19:44:12,596 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_fd8e699e-4eb1-4ea3-9009-40f94a47996b/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2023-11-21 19:44:12,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:44:13,022 WARN L675 CHandler]: The function __VERIFIER_nondet_u16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:44:13,023 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:44:13,023 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:44:13,030 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:44:13,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13 WrapperNode [2023-11-21 19:44:13,032 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:44:13,033 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:44:13,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:44:13,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:44:13,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,517 INFO L138 Inliner]: procedures = 307, calls = 3914, calls flagged for inlining = 137, calls inlined = 133, statements flattened = 7122 [2023-11-21 19:44:13,518 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:44:13,518 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:44:13,519 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:44:13,519 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:44:13,529 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,916 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,944 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:13,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:14,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:44:14,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:44:14,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:44:14,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:44:14,030 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (1/1) ... [2023-11-21 19:44:14,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:44:14,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:44:14,061 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:44:14,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8e699e-4eb1-4ea3-9009-40f94a47996b/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:44:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-11-21 19:44:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-11-21 19:44:14,109 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2023-11-21 19:44:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2023-11-21 19:44:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-21 19:44:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-21 19:44:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 19:44:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 19:44:14,111 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2023-11-21 19:44:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2023-11-21 19:44:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-11-21 19:44:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-11-21 19:44:14,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:44:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:44:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:44:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:44:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-11-21 19:44:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-11-21 19:44:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-11-21 19:44:14,114 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-11-21 19:44:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-21 19:44:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-21 19:44:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-21 19:44:14,115 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-21 19:44:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-11-21 19:44:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-11-21 19:44:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2023-11-21 19:44:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2023-11-21 19:44:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2023-11-21 19:44:14,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2023-11-21 19:44:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:44:14,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:44:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2023-11-21 19:44:14,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2023-11-21 19:44:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-11-21 19:44:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-11-21 19:44:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-11-21 19:44:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-11-21 19:44:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-21 19:44:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-21 19:44:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2023-11-21 19:44:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2023-11-21 19:44:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2023-11-21 19:44:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2023-11-21 19:44:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 19:44:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 19:44:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-21 19:44:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-21 19:44:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:44:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:44:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 19:44:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 19:44:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:44:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:44:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-11-21 19:44:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-11-21 19:44:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2023-11-21 19:44:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2023-11-21 19:44:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:44:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:44:14,123 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-11-21 19:44:14,123 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-11-21 19:44:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:44:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2023-11-21 19:44:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2023-11-21 19:44:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2023-11-21 19:44:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2023-11-21 19:44:14,124 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-21 19:44:14,124 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-21 19:44:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2023-11-21 19:44:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2023-11-21 19:44:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-11-21 19:44:14,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-11-21 19:44:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:44:14,125 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2023-11-21 19:44:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2023-11-21 19:44:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-21 19:44:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-21 19:44:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-11-21 19:44:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:44:14,126 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:44:14,126 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2023-11-21 19:44:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2023-11-21 19:44:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-21 19:44:14,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-21 19:44:14,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:44:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:44:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-11-21 19:44:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-11-21 19:44:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:44:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:44:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2023-11-21 19:44:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2023-11-21 19:44:14,128 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 19:44:14,128 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 19:44:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-11-21 19:44:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-11-21 19:44:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-21 19:44:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-21 19:44:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 19:44:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 19:44:14,129 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 19:44:14,129 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 19:44:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2023-11-21 19:44:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2023-11-21 19:44:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2023-11-21 19:44:14,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2023-11-21 19:44:14,130 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 19:44:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 19:44:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2023-11-21 19:44:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2023-11-21 19:44:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2023-11-21 19:44:14,131 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2023-11-21 19:44:14,131 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-21 19:44:14,132 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-21 19:44:14,132 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 19:44:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 19:44:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-21 19:44:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-21 19:44:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 19:44:14,133 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 19:44:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:44:14,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:44:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:44:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-11-21 19:44:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-11-21 19:44:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-11-21 19:44:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-11-21 19:44:14,134 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 19:44:14,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 19:44:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:44:14,135 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-11-21 19:44:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-11-21 19:44:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:44:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2023-11-21 19:44:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2023-11-21 19:44:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2023-11-21 19:44:14,136 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2023-11-21 19:44:14,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:44:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:44:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-21 19:44:14,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-21 19:44:14,137 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-11-21 19:44:14,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-11-21 19:44:14,141 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 19:44:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 19:44:14,141 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2023-11-21 19:44:14,141 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2023-11-21 19:44:14,142 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-21 19:44:14,144 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-21 19:44:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:44:14,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:44:14,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:44:14,150 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-11-21 19:44:14,150 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-11-21 19:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-11-21 19:44:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-11-21 19:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-11-21 19:44:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-11-21 19:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:44:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2023-11-21 19:44:14,151 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2023-11-21 19:44:14,151 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2023-11-21 19:44:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2023-11-21 19:44:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2023-11-21 19:44:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:44:14,152 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-21 19:44:14,152 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-21 19:44:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-11-21 19:44:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-11-21 19:44:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-11-21 19:44:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-11-21 19:44:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 19:44:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 19:44:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:44:14,153 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2023-11-21 19:44:14,153 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2023-11-21 19:44:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:44:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:44:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 19:44:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 19:44:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-11-21 19:44:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-11-21 19:44:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 19:44:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 19:44:14,154 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-11-21 19:44:14,154 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-11-21 19:44:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2023-11-21 19:44:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2023-11-21 19:44:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-11-21 19:44:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-11-21 19:44:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-21 19:44:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-21 19:44:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-21 19:44:14,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-21 19:44:14,155 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2023-11-21 19:44:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2023-11-21 19:44:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-11-21 19:44:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-11-21 19:44:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-11-21 19:44:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-11-21 19:44:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2023-11-21 19:44:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2023-11-21 19:44:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2023-11-21 19:44:14,156 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2023-11-21 19:44:14,156 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-11-21 19:44:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-11-21 19:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2023-11-21 19:44:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2023-11-21 19:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 19:44:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 19:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-21 19:44:14,157 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-21 19:44:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-11-21 19:44:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-11-21 19:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-21 19:44:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-21 19:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-21 19:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:44:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:44:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-11-21 19:44:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-11-21 19:44:15,132 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:44:15,136 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:44:15,441 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:44:26,746 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:44:31,176 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:44:31,176 INFO L308 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-21 19:44:31,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:44:31 BoogieIcfgContainer [2023-11-21 19:44:31,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:44:31,182 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:44:31,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:44:31,185 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:44:31,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:44:09" (1/3) ... [2023-11-21 19:44:31,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28481678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:44:31, skipping insertion in model container [2023-11-21 19:44:31,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:44:13" (2/3) ... [2023-11-21 19:44:31,188 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28481678 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:44:31, skipping insertion in model container [2023-11-21 19:44:31,188 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:44:31" (3/3) ... [2023-11-21 19:44:31,189 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-11-21 19:44:31,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:44:31,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:44:31,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:44:31,336 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;@30fefd9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:44:31,336 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:44:31,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 2127 states, 1067 states have (on average 1.2558575445173383) internal successors, (1340), 1112 states have internal predecessors, (1340), 954 states have call successors, (954), 105 states have call predecessors, (954), 104 states have return successors, (947), 932 states have call predecessors, (947), 947 states have call successors, (947) [2023-11-21 19:44:31,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-21 19:44:31,374 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:44:31,375 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:44:31,376 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:44:31,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:44:31,384 INFO L85 PathProgramCache]: Analyzing trace with hash 774349000, now seen corresponding path program 1 times [2023-11-21 19:44:31,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:44:31,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142890272] [2023-11-21 19:44:31,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:44:31,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:44:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:44:33,007 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-21 19:44:33,007 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:44:33,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142890272] [2023-11-21 19:44:33,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142890272] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:44:33,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:44:33,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:44:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310699527] [2023-11-21 19:44:33,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:44:33,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:44:33,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:44:33,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:44:33,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:44:33,071 INFO L87 Difference]: Start difference. First operand has 2127 states, 1067 states have (on average 1.2558575445173383) internal successors, (1340), 1112 states have internal predecessors, (1340), 954 states have call successors, (954), 105 states have call predecessors, (954), 104 states have return successors, (947), 932 states have call predecessors, (947), 947 states have call successors, (947) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 19:44:37,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:44:37,590 INFO L93 Difference]: Finished difference Result 6325 states and 9681 transitions. [2023-11-21 19:44:37,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:44:37,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 59 [2023-11-21 19:44:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:44:37,667 INFO L225 Difference]: With dead ends: 6325 [2023-11-21 19:44:37,667 INFO L226 Difference]: Without dead ends: 4197 [2023-11-21 19:44:37,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:44:37,705 INFO L413 NwaCegarLoop]: 2972 mSDtfsCounter, 3179 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 5928 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:44:37,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 5928 Invalid, 558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-21 19:44:37,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4197 states. [2023-11-21 19:44:38,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4197 to 4197. [2023-11-21 19:44:38,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4197 states, 2111 states have (on average 1.245381335859782) internal successors, (2629), 2183 states have internal predecessors, (2629), 1879 states have call successors, (1879), 207 states have call predecessors, (1879), 206 states have return successors, (1878), 1848 states have call predecessors, (1878), 1878 states have call successors, (1878) [2023-11-21 19:44:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4197 states to 4197 states and 6386 transitions. [2023-11-21 19:44:38,463 INFO L78 Accepts]: Start accepts. Automaton has 4197 states and 6386 transitions. Word has length 59 [2023-11-21 19:44:38,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:44:38,465 INFO L495 AbstractCegarLoop]: Abstraction has 4197 states and 6386 transitions. [2023-11-21 19:44:38,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 19:44:38,465 INFO L276 IsEmpty]: Start isEmpty. Operand 4197 states and 6386 transitions. [2023-11-21 19:44:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-21 19:44:38,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:44:38,482 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:44:38,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:44:38,483 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:44:38,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:44:38,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1077547142, now seen corresponding path program 1 times [2023-11-21 19:44:38,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:44:38,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521348790] [2023-11-21 19:44:38,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:44:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:44:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:44:39,427 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-21 19:44:39,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:44:39,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521348790] [2023-11-21 19:44:39,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521348790] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:44:39,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:44:39,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 19:44:39,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995710175] [2023-11-21 19:44:39,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:44:39,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:44:39,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:44:39,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:44:39,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:44:39,435 INFO L87 Difference]: Start difference. First operand 4197 states and 6386 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 19:44:42,662 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 [] [2023-11-21 19:44:45,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:44:45,918 INFO L93 Difference]: Finished difference Result 8377 states and 12783 transitions. [2023-11-21 19:44:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:44:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-11-21 19:44:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:44:46,056 INFO L225 Difference]: With dead ends: 8377 [2023-11-21 19:44:46,057 INFO L226 Difference]: Without dead ends: 8372 [2023-11-21 19:44:46,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 19:44:46,072 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 3198 mSDsluCounter, 5896 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3198 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:44:46,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3198 Valid, 8864 Invalid, 819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 817 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2023-11-21 19:44:46,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8372 states. [2023-11-21 19:44:47,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8372 to 8364. [2023-11-21 19:44:47,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8364 states, 4202 states have (on average 1.2453593526891957) internal successors, (5233), 4346 states have internal predecessors, (5233), 3749 states have call successors, (3749), 413 states have call predecessors, (3749), 412 states have return successors, (3784), 3688 states have call predecessors, (3784), 3748 states have call successors, (3784) [2023-11-21 19:44:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8364 states to 8364 states and 12766 transitions. [2023-11-21 19:44:47,344 INFO L78 Accepts]: Start accepts. Automaton has 8364 states and 12766 transitions. Word has length 68 [2023-11-21 19:44:47,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:44:47,344 INFO L495 AbstractCegarLoop]: Abstraction has 8364 states and 12766 transitions. [2023-11-21 19:44:47,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 19:44:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 8364 states and 12766 transitions. [2023-11-21 19:44:47,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-21 19:44:47,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:44:47,361 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 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] [2023-11-21 19:44:47,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:44:47,361 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:44:47,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:44:47,373 INFO L85 PathProgramCache]: Analyzing trace with hash -304540574, now seen corresponding path program 1 times [2023-11-21 19:44:47,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:44:47,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590209194] [2023-11-21 19:44:47,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:44:47,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:44:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:44:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-21 19:44:48,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:44:48,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590209194] [2023-11-21 19:44:48,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590209194] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:44:48,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:44:48,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:44:48,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618814336] [2023-11-21 19:44:48,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:44:48,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:44:48,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:44:48,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:44:48,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:44:48,073 INFO L87 Difference]: Start difference. First operand 8364 states and 12766 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15)