./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--ppp--ppp_async.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/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--ppp--ppp_async.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2 --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 f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:34:06,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:34:06,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:34:06,648 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:34:06,650 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:34:06,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:34:06,694 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:34:06,695 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:34:06,696 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:34:06,697 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:34:06,698 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:34:06,699 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:34:06,699 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:34:06,702 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:34:06,703 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:34:06,703 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:34:06,704 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:34:06,704 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:34:06,705 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:34:06,705 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:34:06,706 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:34:06,710 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:34:06,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:34:06,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:34:06,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:34:06,713 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:34:06,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:34:06,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:34:06,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:34:06,716 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:34:06,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:34:06,718 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:34:06,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:34:06,719 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:34:06,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:34:06,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:06,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:34:06,721 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:34:06,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:34:06,722 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:34:06,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:34:06,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:34:06,724 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:34:06,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:34:06,725 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_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f78e25bf76e2d1d395e5e41868c5ddb628a36f1efdf095bb509ea6a3a366617b [2024-11-02 12:34:07,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:34:07,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:34:07,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:34:07,088 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:34:07,089 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:34:07,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-02 12:34:09,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:34:10,304 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:34:10,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-02 12:34:10,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/data/9768ac1ce/5f96be154db34f3588d1a2a6cf61f40c/FLAG9ac0a6fbd [2024-11-02 12:34:10,757 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/data/9768ac1ce/5f96be154db34f3588d1a2a6cf61f40c [2024-11-02 12:34:10,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:34:10,762 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:34:10,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:10,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:34:10,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:34:10,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:10" (1/1) ... [2024-11-02 12:34:10,774 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5dfc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:10, skipping insertion in model container [2024-11-02 12:34:10,774 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:34:10" (1/1) ... [2024-11-02 12:34:10,931 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:34:12,217 WARN L251 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_35ce05f0-e755-463e-bdb9-35e372d4de95/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-02 12:34:12,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:12,704 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:34:12,831 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"); [5282] [2024-11-02 12:34:12,833 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)); [5289] [2024-11-02 12:34:12,833 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"); [5297-5298] [2024-11-02 12:34:12,834 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"); [5306-5307] [2024-11-02 12:34:12,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [5320] [2024-11-02 12:34:12,841 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; incl %0": "+m" (v->counter)); [5383] [2024-11-02 12:34:12,842 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; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5391-5392] [2024-11-02 12:34:12,861 WARN L251 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_35ce05f0-e755-463e-bdb9-35e372d4de95/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i[162928,162941] [2024-11-02 12:34:12,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5963] [2024-11-02 12:34:12,897 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5966] [2024-11-02 12:34:12,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5969] [2024-11-02 12:34:12,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5972] [2024-11-02 12:34:12,898 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5975] [2024-11-02 12:34:12,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5991-5992] [2024-11-02 12:34:12,899 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5995-5996] [2024-11-02 12:34:12,900 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5999-6000] [2024-11-02 12:34:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6003-6004] [2024-11-02 12:34:12,903 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6007-6008] [2024-11-02 12:34:12,904 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6031-6032] [2024-11-02 12:34:12,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6035-6036] [2024-11-02 12:34:12,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6039-6040] [2024-11-02 12:34:12,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6043-6044] [2024-11-02 12:34:12,905 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6047-6048] [2024-11-02 12:34:12,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6176] [2024-11-02 12:34:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6179] [2024-11-02 12:34:12,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6182] [2024-11-02 12:34:12,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6185] [2024-11-02 12:34:12,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [6188] [2024-11-02 12:34:12,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [6200-6201] [2024-11-02 12:34:12,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6218-6219] [2024-11-02 12:34:12,927 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6222-6223] [2024-11-02 12:34:12,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6226-6227] [2024-11-02 12:34:12,928 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6230-6231] [2024-11-02 12:34:12,929 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" ((u32 *)argp): "ebx"); [6234-6235] [2024-11-02 12:34:12,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" ((u32 *)argp), "i" (4UL)); [6247-6248] [2024-11-02 12:34:12,930 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6261-6262] [2024-11-02 12:34:12,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6265-6266] [2024-11-02 12:34:12,931 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6269-6270] [2024-11-02 12:34:12,932 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6273-6274] [2024-11-02 12:34:12,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" ((u32 *)argp): "ebx"); [6277-6278] [2024-11-02 12:34:12,933 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" ((u32 *)argp), "i" (4UL)); [6290-6291] [2024-11-02 12:34:12,936 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6328-6329] [2024-11-02 12:34:12,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6332-6333] [2024-11-02 12:34:12,938 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6336-6337] [2024-11-02 12:34:12,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6340-6341] [2024-11-02 12:34:12,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" (p): "ebx"); [6344-6345] [2024-11-02 12:34:12,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" (p), "i" (4UL)); [6357-6358] [2024-11-02 12:34:13,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:34:13,169 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:34:13,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13 WrapperNode [2024-11-02 12:34:13,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:34:13,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:13,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:34:13,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:34:13,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,431 INFO L138 Inliner]: procedures = 180, calls = 596, calls flagged for inlining = 99, calls inlined = 93, statements flattened = 2743 [2024-11-02 12:34:13,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:34:13,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:34:13,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:34:13,435 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:34:13,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,472 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,574 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,597 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:34:13,646 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:34:13,646 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:34:13,646 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:34:13,647 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (1/1) ... [2024-11-02 12:34:13,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:34:13,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:34:13,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:34:13,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35ce05f0-e755-463e-bdb9-35e372d4de95/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:34:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-02 12:34:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-02 12:34:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:34:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_async_push [2024-11-02 12:34:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_async_push [2024-11-02 12:34:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-02 12:34:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-02 12:34:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:34:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:34:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:34:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:34:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:34:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt_byte [2024-11-02 12:34:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt_byte [2024-11-02 12:34:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure ap_put [2024-11-02 12:34:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_put [2024-11-02 12:34:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-02 12:34:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-02 12:34:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-02 12:34:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-02 12:34:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-02 12:34:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-02 12:34:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:34:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:34:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_hangup [2024-11-02 12:34:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_hangup [2024-11-02 12:34:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-02 12:34:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-02 12:34:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-02 12:34:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-02 12:34:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2024-11-02 12:34:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2024-11-02 12:34:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-02 12:34:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-02 12:34:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:34:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:34:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:34:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:34:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:34:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:34:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:34:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-02 12:34:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-02 12:34:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:34:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:34:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_close [2024-11-02 12:34:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_close [2024-11-02 12:34:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:34:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_poll [2024-11-02 12:34:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_poll [2024-11-02 12:34:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-02 12:34:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-02 12:34:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-02 12:34:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-02 12:34:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:34:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-02 12:34:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure ap_get [2024-11-02 12:34:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ap_get [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-02 12:34:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:34:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-02 12:34:13,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-02 12:34:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-02 12:34:13,745 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-02 12:34:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:34:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:34:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-02 12:34:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-02 12:34:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 12:34:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 12:34:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-02 12:34:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-02 12:34:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure async_lcp_peek [2024-11-02 12:34:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure async_lcp_peek [2024-11-02 12:34:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:34:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-02 12:34:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-02 12:34:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:34:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-02 12:34:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-02 12:34:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-02 12:34:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-02 12:34:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:34:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:34:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_asynctty_ioctl [2024-11-02 12:34:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_asynctty_ioctl [2024-11-02 12:34:13,751 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2024-11-02 12:34:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2024-11-02 12:34:14,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:34:14,329 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:34:14,965 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:34:21,466 INFO L? ?]: Removed 1255 outVars from TransFormulas that were not future-live. [2024-11-02 12:34:21,466 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:34:23,057 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:34:23,057 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 12:34:23,058 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:23 BoogieIcfgContainer [2024-11-02 12:34:23,058 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:34:23,064 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:34:23,064 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:34:23,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:34:23,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:34:10" (1/3) ... [2024-11-02 12:34:23,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327b2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:23, skipping insertion in model container [2024-11-02 12:34:23,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:34:13" (2/3) ... [2024-11-02 12:34:23,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@327b2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:34:23, skipping insertion in model container [2024-11-02 12:34:23,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:34:23" (3/3) ... [2024-11-02 12:34:23,075 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_async.ko-entry_point.cil.out.i [2024-11-02 12:34:23,096 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:34:23,100 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:34:23,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:34:23,210 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6077a119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:34:23,211 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:34:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand has 487 states, 329 states have (on average 1.4346504559270516) internal successors, (472), 343 states have internal predecessors, (472), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) [2024-11-02 12:34:23,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-02 12:34:23,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:23,233 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:23,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:23,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:23,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1347155126, now seen corresponding path program 1 times [2024-11-02 12:34:23,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:23,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301241031] [2024-11-02 12:34:23,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:24,200 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-02 12:34:24,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:24,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301241031] [2024-11-02 12:34:24,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301241031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:24,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:24,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:34:24,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284385231] [2024-11-02 12:34:24,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:24,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:34:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:24,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:34:24,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:24,260 INFO L87 Difference]: Start difference. First operand has 487 states, 329 states have (on average 1.4346504559270516) internal successors, (472), 343 states have internal predecessors, (472), 119 states have call successors, (119), 38 states have call predecessors, (119), 37 states have return successors, (115), 115 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-02 12:34:26,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:28,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:32,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:34,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:36,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:34:36,432 INFO L93 Difference]: Finished difference Result 1397 states and 2058 transitions. [2024-11-02 12:34:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:34:36,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 73 [2024-11-02 12:34:36,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:34:36,473 INFO L225 Difference]: With dead ends: 1397 [2024-11-02 12:34:36,474 INFO L226 Difference]: Without dead ends: 919 [2024-11-02 12:34:36,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:34:36,491 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 642 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:34:36,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1167 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 230 Invalid, 5 Unknown, 0 Unchecked, 12.0s Time] [2024-11-02 12:34:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-02 12:34:36,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 919. [2024-11-02 12:34:36,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 631 states have (on average 1.4152139461172741) internal successors, (893), 647 states have internal predecessors, (893), 215 states have call successors, (215), 73 states have call predecessors, (215), 72 states have return successors, (214), 214 states have call predecessors, (214), 214 states have call successors, (214) [2024-11-02 12:34:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1322 transitions. [2024-11-02 12:34:36,683 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1322 transitions. Word has length 73 [2024-11-02 12:34:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:34:36,684 INFO L471 AbstractCegarLoop]: Abstraction has 919 states and 1322 transitions. [2024-11-02 12:34:36,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-02 12:34:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1322 transitions. [2024-11-02 12:34:36,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-02 12:34:36,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:34:36,695 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:34:36,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:34:36,695 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:34:36,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:34:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 857445129, now seen corresponding path program 1 times [2024-11-02 12:34:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:34:36,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873498145] [2024-11-02 12:34:36,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:34:36,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:34:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:34:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-02 12:34:37,309 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:34:37,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873498145] [2024-11-02 12:34:37,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873498145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:34:37,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:34:37,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-02 12:34:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241441615] [2024-11-02 12:34:37,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:34:37,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 12:34:37,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:34:37,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 12:34:37,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-02 12:34:37,314 INFO L87 Difference]: Start difference. First operand 919 states and 1322 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-02 12:34:39,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:34:41,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []