./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_synctty.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.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_synctty.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:51:11,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:51:11,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 23:51:11,571 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:51:11,571 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:51:11,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:51:11,611 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:51:11,612 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:51:11,612 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:51:11,613 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:51:11,613 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:51:11,613 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:51:11,614 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:51:11,614 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:51:11,615 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:51:11,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:51:11,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:51:11,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:51:11,616 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:51:11,617 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:51:11,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:51:11,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:51:11,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:51:11,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:51:11,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:51:11,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:51:11,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:51:11,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:51:11,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:51:11,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:51:11,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:51:11,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:51:11,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:51:11,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:51:11,620 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC 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 -> Automizer 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 -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-23 23:51:11,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:51:11,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:51:11,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:51:11,939 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:51:11,939 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:51:11,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-23 23:51:14,826 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/data/8565d9a00/a67a67df8c2d4a0988d84871b44eedaa/FLAGb6655d95a [2024-11-23 23:51:15,434 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:51:15,434 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-23 23:51:15,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/data/8565d9a00/a67a67df8c2d4a0988d84871b44eedaa/FLAGb6655d95a [2024-11-23 23:51:15,505 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/data/8565d9a00/a67a67df8c2d4a0988d84871b44eedaa [2024-11-23 23:51:15,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:51:15,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:51:15,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:51:15,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:51:15,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:51:15,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:51:15" (1/1) ... [2024-11-23 23:51:15,516 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69bf910f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:15, skipping insertion in model container [2024-11-23 23:51:15,516 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:51:15" (1/1) ... [2024-11-23 23:51:15,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:51:16,623 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-23 23:51:16,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:51:16,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:51:17,108 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"); [5277] [2024-11-23 23:51:17,110 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)); [5284] [2024-11-23 23:51:17,111 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"); [5292-5293] [2024-11-23 23:51:17,112 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"); [5301-5302] [2024-11-23 23:51:17,118 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)); [5349] [2024-11-23 23:51:17,119 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"); [5357-5358] [2024-11-23 23:51:17,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2024-11-23 23:51:17,210 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"); [5939] [2024-11-23 23:51:17,211 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"); [5942] [2024-11-23 23:51:17,213 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"); [5945] [2024-11-23 23:51:17,213 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"); [5948] [2024-11-23 23:51:17,214 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"); [5951] [2024-11-23 23:51:17,215 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"); [5967-5968] [2024-11-23 23:51:17,215 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"); [5971-5972] [2024-11-23 23:51:17,216 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"); [5975-5976] [2024-11-23 23:51:17,216 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"); [5979-5980] [2024-11-23 23:51:17,217 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"); [5983-5984] [2024-11-23 23:51:17,218 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"); [6007-6008] [2024-11-23 23:51:17,218 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"); [6011-6012] [2024-11-23 23:51:17,218 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"); [6015-6016] [2024-11-23 23:51:17,218 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"); [6019-6020] [2024-11-23 23:51:17,218 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"); [6023-6024] [2024-11-23 23:51:17,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6152] [2024-11-23 23:51:17,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6155] [2024-11-23 23:51:17,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6158] [2024-11-23 23:51:17,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6161] [2024-11-23 23:51:17,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6164] [2024-11-23 23:51:17,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)argp), "i" (4UL)); [6176-6177] [2024-11-23 23:51:17,238 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"); [6194-6195] [2024-11-23 23:51:17,239 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"); [6198-6199] [2024-11-23 23:51:17,239 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"); [6202-6203] [2024-11-23 23:51:17,239 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"); [6206-6207] [2024-11-23 23:51:17,239 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"); [6210-6211] [2024-11-23 23:51:17,240 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" (p), "i" (4UL)); [6223-6224] [2024-11-23 23:51:17,241 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"); [6237-6238] [2024-11-23 23:51:17,241 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"); [6241-6242] [2024-11-23 23:51:17,242 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"); [6245-6246] [2024-11-23 23:51:17,242 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"); [6249-6250] [2024-11-23 23:51:17,242 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"); [6253-6254] [2024-11-23 23:51:17,243 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" (p), "i" (4UL)); [6266-6267] [2024-11-23 23:51:17,246 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" ((int *)argp): "ebx"); [6304-6305] [2024-11-23 23:51:17,246 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" ((int *)argp): "ebx"); [6308-6309] [2024-11-23 23:51:17,247 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" ((int *)argp): "ebx"); [6312-6313] [2024-11-23 23:51:17,247 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" ((int *)argp): "ebx"); [6316-6317] [2024-11-23 23:51:17,247 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" ((int *)argp): "ebx"); [6320-6321] [2024-11-23 23:51:17,247 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" ((int *)argp), "i" (4UL)); [6333-6334] [2024-11-23 23:51:17,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:51:17,369 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:51:17,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17 WrapperNode [2024-11-23 23:51:17,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:51:17,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:51:17,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:51:17,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:51:17,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,512 INFO L138 Inliner]: procedures = 176, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1953 [2024-11-23 23:51:17,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:51:17,513 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:51:17,513 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:51:17,514 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:51:17,523 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,781 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [2, 7, 13, 1, 24, 20, 2, 120, 1]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 0, 1, 0, 15, 2, 10, 1]. The 86 writes are split as follows [0, 6, 13, 0, 24, 2, 0, 41, 0]. [2024-11-23 23:51:17,781 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,781 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,888 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,896 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,986 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:51:17,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:51:17,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:51:17,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:51:17,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (1/1) ... [2024-11-23 23:51:17,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:51:18,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:51:18,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:51:18,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:51:18,061 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-23 23:51:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-23 23:51:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-23 23:51:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-23 23:51:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-23 23:51:18,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-23 23:51:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 23:51:18,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-23 23:51:18,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-23 23:51:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 23:51:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-23 23:51:18,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 23:51:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-23 23:51:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-23 23:51:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-23 23:51:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-23 23:51:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-23 23:51:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-23 23:51:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-23 23:51:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-23 23:51:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-23 23:51:18,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-23 23:51:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-23 23:51:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-23 23:51:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-23 23:51:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-23 23:51:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-23 23:51:18,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 23:51:18,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-23 23:51:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-23 23:51:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-23 23:51:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-23 23:51:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-23 23:51:18,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-23 23:51:18,071 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-23 23:51:18,072 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 23:51:18,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 23:51:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 23:51:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 23:51:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-23 23:51:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-23 23:51:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-23 23:51:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-23 23:51:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-23 23:51:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-23 23:51:18,073 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-23 23:51:18,073 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-23 23:51:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:51:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-23 23:51:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-23 23:51:18,074 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 23:51:18,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 23:51:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 23:51:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 23:51:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 23:51:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 23:51:18,075 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-23 23:51:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-23 23:51:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 23:51:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-23 23:51:18,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-23 23:51:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-23 23:51:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-23 23:51:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-23 23:51:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-23 23:51:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-23 23:51:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 23:51:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-23 23:51:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-23 23:51:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-23 23:51:18,081 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 23:51:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-23 23:51:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-23 23:51:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-23 23:51:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:51:18,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:51:18,082 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-23 23:51:18,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-23 23:51:18,717 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:51:18,721 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:51:18,804 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-23 23:51:25,300 INFO L? ?]: Removed 1114 outVars from TransFormulas that were not future-live. [2024-11-23 23:51:25,301 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:51:25,324 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:51:25,324 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-23 23:51:25,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:51:25 BoogieIcfgContainer [2024-11-23 23:51:25,324 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:51:25,326 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:51:25,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:51:25,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:51:25,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:51:15" (1/3) ... [2024-11-23 23:51:25,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aef252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:51:25, skipping insertion in model container [2024-11-23 23:51:25,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:51:17" (2/3) ... [2024-11-23 23:51:25,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11aef252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:51:25, skipping insertion in model container [2024-11-23 23:51:25,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:51:25" (3/3) ... [2024-11-23 23:51:25,333 INFO L128 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2024-11-23 23:51:25,350 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:51:25,351 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i that has 50 procedures, 734 locations, 1 initial locations, 21 loop locations, and 1 error locations. [2024-11-23 23:51:25,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:51:25,458 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=PETRI_NET, 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;@26eb2e0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:51:25,459 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:51:25,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 693 states, 527 states have (on average 1.398481973434535) internal successors, (737), 543 states have internal predecessors, (737), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-23 23:51:25,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-23 23:51:25,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:25,477 INFO L218 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, 1, 1] [2024-11-23 23:51:25,477 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:25,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:25,482 INFO L85 PathProgramCache]: Analyzing trace with hash 529108579, now seen corresponding path program 1 times [2024-11-23 23:51:25,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:25,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420695885] [2024-11-23 23:51:25,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:51:26,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:26,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420695885] [2024-11-23 23:51:26,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420695885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:26,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:26,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:51:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580156161] [2024-11-23 23:51:26,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:26,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:51:26,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:26,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:51:26,555 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:51:26,559 INFO L87 Difference]: Start difference. First operand has 693 states, 527 states have (on average 1.398481973434535) internal successors, (737), 543 states have internal predecessors, (737), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-23 23:51:30,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:30,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:30,875 INFO L93 Difference]: Finished difference Result 2020 states and 2937 transitions. [2024-11-23 23:51:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:51:30,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 78 [2024-11-23 23:51:30,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:30,906 INFO L225 Difference]: With dead ends: 2020 [2024-11-23 23:51:30,906 INFO L226 Difference]: Without dead ends: 1316 [2024-11-23 23:51:30,920 INFO L434 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 [2024-11-23 23:51:30,925 INFO L435 NwaCegarLoop]: 977 mSDtfsCounter, 901 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:30,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1926 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:51:30,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2024-11-23 23:51:31,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1316. [2024-11-23 23:51:31,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1012 states have (on average 1.3794466403162056) internal successors, (1396), 1032 states have internal predecessors, (1396), 225 states have call successors, (225), 79 states have call predecessors, (225), 78 states have return successors, (224), 220 states have call predecessors, (224), 224 states have call successors, (224) [2024-11-23 23:51:31,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1845 transitions. [2024-11-23 23:51:31,165 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1845 transitions. Word has length 78 [2024-11-23 23:51:31,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:31,166 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 1845 transitions. [2024-11-23 23:51:31,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-23 23:51:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1845 transitions. [2024-11-23 23:51:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-23 23:51:31,173 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:31,173 INFO L218 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, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:31,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:51:31,174 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:31,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1312216485, now seen corresponding path program 1 times [2024-11-23 23:51:31,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:31,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578370761] [2024-11-23 23:51:31,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:51:31,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:31,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578370761] [2024-11-23 23:51:31,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578370761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:31,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:31,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:51:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559748010] [2024-11-23 23:51:31,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:31,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:51:31,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:31,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:51:31,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:51:31,996 INFO L87 Difference]: Start difference. First operand 1316 states and 1845 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-11-23 23:51:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:32,289 INFO L93 Difference]: Finished difference Result 3897 states and 5511 transitions. [2024-11-23 23:51:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:51:32,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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 82 [2024-11-23 23:51:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:32,314 INFO L225 Difference]: With dead ends: 3897 [2024-11-23 23:51:32,314 INFO L226 Difference]: Without dead ends: 2597 [2024-11-23 23:51:32,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:51:32,323 INFO L435 NwaCegarLoop]: 993 mSDtfsCounter, 933 mSDsluCounter, 2905 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3898 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:32,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 3898 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:51:32,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2024-11-23 23:51:32,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 2591. [2024-11-23 23:51:32,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2591 states, 1996 states have (on average 1.3807615230460921) internal successors, (2756), 2036 states have internal predecessors, (2756), 438 states have call successors, (438), 157 states have call predecessors, (438), 156 states have return successors, (475), 429 states have call predecessors, (475), 437 states have call successors, (475) [2024-11-23 23:51:32,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2591 states to 2591 states and 3669 transitions. [2024-11-23 23:51:32,550 INFO L78 Accepts]: Start accepts. Automaton has 2591 states and 3669 transitions. Word has length 82 [2024-11-23 23:51:32,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:32,552 INFO L471 AbstractCegarLoop]: Abstraction has 2591 states and 3669 transitions. [2024-11-23 23:51:32,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 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) [2024-11-23 23:51:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 2591 states and 3669 transitions. [2024-11-23 23:51:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-23 23:51:32,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:32,571 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2024-11-23 23:51:32,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:51:32,571 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:32,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash -781551677, now seen corresponding path program 1 times [2024-11-23 23:51:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:32,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339010982] [2024-11-23 23:51:32,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:32,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:32,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:51:33,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:33,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339010982] [2024-11-23 23:51:33,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339010982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:33,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:33,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:51:33,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326762113] [2024-11-23 23:51:33,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:33,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:51:33,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:33,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:51:33,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:51:33,019 INFO L87 Difference]: Start difference. First operand 2591 states and 3669 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-23 23:51:33,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:33,315 INFO L93 Difference]: Finished difference Result 6633 states and 9356 transitions. [2024-11-23 23:51:33,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:51:33,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) Word has length 126 [2024-11-23 23:51:33,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:33,345 INFO L225 Difference]: With dead ends: 6633 [2024-11-23 23:51:33,346 INFO L226 Difference]: Without dead ends: 4066 [2024-11-23 23:51:33,354 INFO L434 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 [2024-11-23 23:51:33,355 INFO L435 NwaCegarLoop]: 965 mSDtfsCounter, 558 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:33,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 1848 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:51:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4066 states. [2024-11-23 23:51:33,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4066 to 4054. [2024-11-23 23:51:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4054 states, 3146 states have (on average 1.3823903369357915) internal successors, (4349), 3193 states have internal predecessors, (4349), 651 states have call successors, (651), 257 states have call predecessors, (651), 256 states have return successors, (706), 639 states have call predecessors, (706), 650 states have call successors, (706) [2024-11-23 23:51:33,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4054 states to 4054 states and 5706 transitions. [2024-11-23 23:51:33,670 INFO L78 Accepts]: Start accepts. Automaton has 4054 states and 5706 transitions. Word has length 126 [2024-11-23 23:51:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:33,671 INFO L471 AbstractCegarLoop]: Abstraction has 4054 states and 5706 transitions. [2024-11-23 23:51:33,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-23 23:51:33,671 INFO L276 IsEmpty]: Start isEmpty. Operand 4054 states and 5706 transitions. [2024-11-23 23:51:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-23 23:51:33,694 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:33,694 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:33,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:51:33,694 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:33,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:33,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1537319813, now seen corresponding path program 1 times [2024-11-23 23:51:33,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:33,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775387079] [2024-11-23 23:51:33,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:33,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:34,147 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 23:51:34,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:34,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775387079] [2024-11-23 23:51:34,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775387079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:34,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:34,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:51:34,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278006567] [2024-11-23 23:51:34,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:34,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:51:34,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:34,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:51:34,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:51:34,152 INFO L87 Difference]: Start difference. First operand 4054 states and 5706 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:51:34,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:34,467 INFO L93 Difference]: Finished difference Result 9752 states and 13622 transitions. [2024-11-23 23:51:34,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:51:34,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2024-11-23 23:51:34,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:34,502 INFO L225 Difference]: With dead ends: 9752 [2024-11-23 23:51:34,503 INFO L226 Difference]: Without dead ends: 5722 [2024-11-23 23:51:34,514 INFO L434 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 [2024-11-23 23:51:34,516 INFO L435 NwaCegarLoop]: 1319 mSDtfsCounter, 567 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:34,517 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 2232 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:51:34,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5722 states. [2024-11-23 23:51:34,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5722 to 5714. [2024-11-23 23:51:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5714 states, 4410 states have (on average 1.3705215419501133) internal successors, (6044), 4495 states have internal predecessors, (6044), 906 states have call successors, (906), 398 states have call predecessors, (906), 397 states have return successors, (985), 884 states have call predecessors, (985), 905 states have call successors, (985) [2024-11-23 23:51:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5714 states to 5714 states and 7935 transitions. [2024-11-23 23:51:34,833 INFO L78 Accepts]: Start accepts. Automaton has 5714 states and 7935 transitions. Word has length 147 [2024-11-23 23:51:34,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:34,833 INFO L471 AbstractCegarLoop]: Abstraction has 5714 states and 7935 transitions. [2024-11-23 23:51:34,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:51:34,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5714 states and 7935 transitions. [2024-11-23 23:51:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-23 23:51:34,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:34,847 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:34,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:51:34,847 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:34,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:34,847 INFO L85 PathProgramCache]: Analyzing trace with hash 61977582, now seen corresponding path program 1 times [2024-11-23 23:51:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:34,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552376637] [2024-11-23 23:51:34,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:34,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-23 23:51:35,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:35,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552376637] [2024-11-23 23:51:35,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552376637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:35,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:35,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:51:35,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780746770] [2024-11-23 23:51:35,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:35,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:51:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:35,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:51:35,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:51:35,297 INFO L87 Difference]: Start difference. First operand 5714 states and 7935 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-23 23:51:39,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:39,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:39,755 INFO L93 Difference]: Finished difference Result 14146 states and 19650 transitions. [2024-11-23 23:51:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:51:39,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 149 [2024-11-23 23:51:39,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:39,805 INFO L225 Difference]: With dead ends: 14146 [2024-11-23 23:51:39,805 INFO L226 Difference]: Without dead ends: 8467 [2024-11-23 23:51:39,823 INFO L434 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 [2024-11-23 23:51:39,824 INFO L435 NwaCegarLoop]: 1010 mSDtfsCounter, 753 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:39,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1865 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:51:39,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8467 states. [2024-11-23 23:51:40,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8467 to 8449. [2024-11-23 23:51:40,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8449 states, 6600 states have (on average 1.3704545454545454) internal successors, (9045), 6708 states have internal predecessors, (9045), 1241 states have call successors, (1241), 608 states have call predecessors, (1241), 607 states have return successors, (1352), 1216 states have call predecessors, (1352), 1240 states have call successors, (1352) [2024-11-23 23:51:40,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8449 states to 8449 states and 11638 transitions. [2024-11-23 23:51:40,279 INFO L78 Accepts]: Start accepts. Automaton has 8449 states and 11638 transitions. Word has length 149 [2024-11-23 23:51:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:40,279 INFO L471 AbstractCegarLoop]: Abstraction has 8449 states and 11638 transitions. [2024-11-23 23:51:40,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-23 23:51:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 8449 states and 11638 transitions. [2024-11-23 23:51:40,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-23 23:51:40,293 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:40,293 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:40,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:51:40,293 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:40,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:40,294 INFO L85 PathProgramCache]: Analyzing trace with hash -289798824, now seen corresponding path program 1 times [2024-11-23 23:51:40,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:40,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991334796] [2024-11-23 23:51:40,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:40,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:40,637 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-23 23:51:40,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:40,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991334796] [2024-11-23 23:51:40,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991334796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:40,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:40,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:51:40,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397188439] [2024-11-23 23:51:40,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:40,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:51:40,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:40,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:51:40,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:51:40,640 INFO L87 Difference]: Start difference. First operand 8449 states and 11638 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:51:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:40,905 INFO L93 Difference]: Finished difference Result 12704 states and 17646 transitions. [2024-11-23 23:51:40,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:51:40,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2024-11-23 23:51:40,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:40,971 INFO L225 Difference]: With dead ends: 12704 [2024-11-23 23:51:40,971 INFO L226 Difference]: Without dead ends: 8469 [2024-11-23 23:51:40,987 INFO L434 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 [2024-11-23 23:51:40,988 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 3 mSDsluCounter, 948 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:40,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1903 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:51:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8469 states. [2024-11-23 23:51:41,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8469 to 8469. [2024-11-23 23:51:41,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8469 states, 6620 states have (on average 1.3693353474320242) internal successors, (9065), 6728 states have internal predecessors, (9065), 1241 states have call successors, (1241), 608 states have call predecessors, (1241), 607 states have return successors, (1352), 1216 states have call predecessors, (1352), 1240 states have call successors, (1352) [2024-11-23 23:51:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8469 states to 8469 states and 11658 transitions. [2024-11-23 23:51:41,543 INFO L78 Accepts]: Start accepts. Automaton has 8469 states and 11658 transitions. Word has length 154 [2024-11-23 23:51:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:41,544 INFO L471 AbstractCegarLoop]: Abstraction has 8469 states and 11658 transitions. [2024-11-23 23:51:41,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 23:51:41,544 INFO L276 IsEmpty]: Start isEmpty. Operand 8469 states and 11658 transitions. [2024-11-23 23:51:41,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-23 23:51:41,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:41,566 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:41,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:51:41,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:41,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:41,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1405412887, now seen corresponding path program 1 times [2024-11-23 23:51:41,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:41,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650584951] [2024-11-23 23:51:41,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:41,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-23 23:51:42,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:42,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650584951] [2024-11-23 23:51:42,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650584951] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:42,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:42,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:51:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849131962] [2024-11-23 23:51:42,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:42,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:51:42,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:42,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:51:42,581 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:51:42,581 INFO L87 Difference]: Start difference. First operand 8469 states and 11658 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 23:51:46,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:50,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:51:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:54,208 INFO L93 Difference]: Finished difference Result 18115 states and 24979 transitions. [2024-11-23 23:51:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:51:54,209 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 156 [2024-11-23 23:51:54,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:54,275 INFO L225 Difference]: With dead ends: 18115 [2024-11-23 23:51:54,275 INFO L226 Difference]: Without dead ends: 9681 [2024-11-23 23:51:54,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:51:54,304 INFO L435 NwaCegarLoop]: 876 mSDtfsCounter, 1883 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 485 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 485 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:54,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 3448 Invalid, 2057 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [485 Valid, 1570 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-23 23:51:54,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9681 states. [2024-11-23 23:51:54,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9681 to 9301. [2024-11-23 23:51:54,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9301 states, 7192 states have (on average 1.3569243604004448) internal successors, (9759), 7338 states have internal predecessors, (9759), 1387 states have call successors, (1387), 686 states have call predecessors, (1387), 721 states have return successors, (1560), 1368 states have call predecessors, (1560), 1386 states have call successors, (1560) [2024-11-23 23:51:54,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9301 states to 9301 states and 12706 transitions. [2024-11-23 23:51:54,786 INFO L78 Accepts]: Start accepts. Automaton has 9301 states and 12706 transitions. Word has length 156 [2024-11-23 23:51:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:54,787 INFO L471 AbstractCegarLoop]: Abstraction has 9301 states and 12706 transitions. [2024-11-23 23:51:54,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 7 states have internal predecessors, (85), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-23 23:51:54,788 INFO L276 IsEmpty]: Start isEmpty. Operand 9301 states and 12706 transitions. [2024-11-23 23:51:54,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-23 23:51:54,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:54,807 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:54,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:51:54,807 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:54,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:54,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2106423766, now seen corresponding path program 1 times [2024-11-23 23:51:54,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:54,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472266648] [2024-11-23 23:51:54,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:54,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:55,606 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-23 23:51:55,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:55,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472266648] [2024-11-23 23:51:55,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472266648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:51:55,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:51:55,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:51:55,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298068431] [2024-11-23 23:51:55,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:51:55,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:51:55,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:51:55,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:51:55,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:51:55,609 INFO L87 Difference]: Start difference. First operand 9301 states and 12706 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 23:51:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:51:55,906 INFO L93 Difference]: Finished difference Result 18633 states and 25554 transitions. [2024-11-23 23:51:55,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:51:55,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 194 [2024-11-23 23:51:55,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:51:55,952 INFO L225 Difference]: With dead ends: 18633 [2024-11-23 23:51:55,952 INFO L226 Difference]: Without dead ends: 9367 [2024-11-23 23:51:55,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:51:55,976 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 0 mSDsluCounter, 2857 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:51:55,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3811 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:51:55,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9367 states. [2024-11-23 23:51:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9367 to 9365. [2024-11-23 23:51:56,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9365 states, 7240 states have (on average 1.3545580110497237) internal successors, (9807), 7386 states have internal predecessors, (9807), 1387 states have call successors, (1387), 686 states have call predecessors, (1387), 737 states have return successors, (1584), 1384 states have call predecessors, (1584), 1386 states have call successors, (1584) [2024-11-23 23:51:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 12778 transitions. [2024-11-23 23:51:56,443 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 12778 transitions. Word has length 194 [2024-11-23 23:51:56,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:51:56,444 INFO L471 AbstractCegarLoop]: Abstraction has 9365 states and 12778 transitions. [2024-11-23 23:51:56,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-23 23:51:56,444 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 12778 transitions. [2024-11-23 23:51:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-23 23:51:56,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:51:56,464 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:51:56,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:51:56,465 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:51:56,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:51:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash -766188612, now seen corresponding path program 1 times [2024-11-23 23:51:56,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:51:56,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805283381] [2024-11-23 23:51:56,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:56,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:51:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-23 23:51:58,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:51:58,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805283381] [2024-11-23 23:51:58,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805283381] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:51:58,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435130629] [2024-11-23 23:51:58,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:51:58,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:51:58,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:51:58,037 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:51:58,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:51:59,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:51:59,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-23 23:51:59,174 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:51:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-23 23:51:59,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 23:52:00,704 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-23 23:52:00,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435130629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 23:52:00,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 23:52:00,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 19 [2024-11-23 23:52:00,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474121718] [2024-11-23 23:52:00,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 23:52:00,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-23 23:52:00,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:52:00,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-23 23:52:00,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:52:00,708 INFO L87 Difference]: Start difference. First operand 9365 states and 12778 transitions. Second operand has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 19 states have internal predecessors, (211), 10 states have call successors, (46), 8 states have call predecessors, (46), 12 states have return successors, (45), 15 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-23 23:52:04,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:08,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:12,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:16,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:20,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:24,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:28,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:32,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:36,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:40,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:44,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:48,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:52:58,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:52:58,385 INFO L93 Difference]: Finished difference Result 23850 states and 33416 transitions. [2024-11-23 23:52:58,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 23:52:58,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 19 states have internal predecessors, (211), 10 states have call successors, (46), 8 states have call predecessors, (46), 12 states have return successors, (45), 15 states have call predecessors, (45), 10 states have call successors, (45) Word has length 201 [2024-11-23 23:52:58,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:52:58,490 INFO L225 Difference]: With dead ends: 23850 [2024-11-23 23:52:58,490 INFO L226 Difference]: Without dead ends: 18711 [2024-11-23 23:52:58,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 400 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2024-11-23 23:52:58,516 INFO L435 NwaCegarLoop]: 1449 mSDtfsCounter, 10682 mSDsluCounter, 6664 mSDsCounter, 0 mSdLazyCounter, 4270 mSolverCounterSat, 4001 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10896 SdHoareTripleChecker+Valid, 8113 SdHoareTripleChecker+Invalid, 8283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4001 IncrementalHoareTripleChecker+Valid, 4270 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.5s IncrementalHoareTripleChecker+Time [2024-11-23 23:52:58,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10896 Valid, 8113 Invalid, 8283 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4001 Valid, 4270 Invalid, 12 Unknown, 0 Unchecked, 56.5s Time] [2024-11-23 23:52:58,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18711 states. [2024-11-23 23:52:59,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18711 to 18101. [2024-11-23 23:52:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18101 states, 14038 states have (on average 1.3616612052999002) internal successors, (19115), 14328 states have internal predecessors, (19115), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:52:59,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18101 states to 18101 states and 25004 transitions. [2024-11-23 23:52:59,458 INFO L78 Accepts]: Start accepts. Automaton has 18101 states and 25004 transitions. Word has length 201 [2024-11-23 23:52:59,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:52:59,460 INFO L471 AbstractCegarLoop]: Abstraction has 18101 states and 25004 transitions. [2024-11-23 23:52:59,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.105263157894736) internal successors, (211), 19 states have internal predecessors, (211), 10 states have call successors, (46), 8 states have call predecessors, (46), 12 states have return successors, (45), 15 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-23 23:52:59,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18101 states and 25004 transitions. [2024-11-23 23:52:59,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-23 23:52:59,481 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:52:59,481 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:52:59,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:52:59,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:52:59,687 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:52:59,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:52:59,687 INFO L85 PathProgramCache]: Analyzing trace with hash 172412731, now seen corresponding path program 1 times [2024-11-23 23:52:59,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:52:59,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673046714] [2024-11-23 23:52:59,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:52:59,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-23 23:53:00,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:00,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673046714] [2024-11-23 23:53:00,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673046714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:00,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581232524] [2024-11-23 23:53:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:00,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:00,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:00,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:00,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:00,448 INFO L87 Difference]: Start difference. First operand 18101 states and 25004 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:01,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:01,134 INFO L93 Difference]: Finished difference Result 32014 states and 44572 transitions. [2024-11-23 23:53:01,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:01,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 203 [2024-11-23 23:53:01,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:01,225 INFO L225 Difference]: With dead ends: 32014 [2024-11-23 23:53:01,225 INFO L226 Difference]: Without dead ends: 18131 [2024-11-23 23:53:01,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:01,260 INFO L435 NwaCegarLoop]: 950 mSDtfsCounter, 0 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:01,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2844 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18131 states. [2024-11-23 23:53:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18131 to 18131. [2024-11-23 23:53:02,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18131 states, 14068 states have (on average 1.361600796133068) internal successors, (19155), 14358 states have internal predecessors, (19155), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:53:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18131 states to 18131 states and 25044 transitions. [2024-11-23 23:53:02,192 INFO L78 Accepts]: Start accepts. Automaton has 18131 states and 25044 transitions. Word has length 203 [2024-11-23 23:53:02,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:02,193 INFO L471 AbstractCegarLoop]: Abstraction has 18131 states and 25044 transitions. [2024-11-23 23:53:02,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:02,193 INFO L276 IsEmpty]: Start isEmpty. Operand 18131 states and 25044 transitions. [2024-11-23 23:53:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-23 23:53:02,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:02,214 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:02,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 23:53:02,215 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:02,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash -195007938, now seen corresponding path program 1 times [2024-11-23 23:53:02,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:02,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843724427] [2024-11-23 23:53:02,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:02,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:03,214 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-23 23:53:03,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:03,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843724427] [2024-11-23 23:53:03,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843724427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:03,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:03,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:03,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812698821] [2024-11-23 23:53:03,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:03,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:03,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:03,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:03,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:03,218 INFO L87 Difference]: Start difference. First operand 18131 states and 25044 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:04,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:04,106 INFO L93 Difference]: Finished difference Result 36275 states and 50115 transitions. [2024-11-23 23:53:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:04,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 204 [2024-11-23 23:53:04,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:04,236 INFO L225 Difference]: With dead ends: 36275 [2024-11-23 23:53:04,236 INFO L226 Difference]: Without dead ends: 18179 [2024-11-23 23:53:04,296 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:04,297 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 0 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2858 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:04,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2858 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:04,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18179 states. [2024-11-23 23:53:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18179 to 18179. [2024-11-23 23:53:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18179 states, 14116 states have (on average 1.3603712099744971) internal successors, (19203), 14406 states have internal predecessors, (19203), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:53:05,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18179 states to 18179 states and 25092 transitions. [2024-11-23 23:53:05,346 INFO L78 Accepts]: Start accepts. Automaton has 18179 states and 25092 transitions. Word has length 204 [2024-11-23 23:53:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:05,348 INFO L471 AbstractCegarLoop]: Abstraction has 18179 states and 25092 transitions. [2024-11-23 23:53:05,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 18179 states and 25092 transitions. [2024-11-23 23:53:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-23 23:53:05,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:05,370 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:05,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 23:53:05,371 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:05,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:05,371 INFO L85 PathProgramCache]: Analyzing trace with hash 646346590, now seen corresponding path program 1 times [2024-11-23 23:53:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:05,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659689952] [2024-11-23 23:53:05,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:05,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:05,853 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-23 23:53:05,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:05,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659689952] [2024-11-23 23:53:05,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659689952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:05,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:05,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:05,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389588382] [2024-11-23 23:53:05,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:05,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:05,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:05,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:05,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:05,855 INFO L87 Difference]: Start difference. First operand 18179 states and 25092 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:09,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:53:10,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:10,590 INFO L93 Difference]: Finished difference Result 43064 states and 59267 transitions. [2024-11-23 23:53:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:53:10,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 220 [2024-11-23 23:53:10,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:10,719 INFO L225 Difference]: With dead ends: 43064 [2024-11-23 23:53:10,719 INFO L226 Difference]: Without dead ends: 24920 [2024-11-23 23:53:10,763 INFO L434 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 [2024-11-23 23:53:10,763 INFO L435 NwaCegarLoop]: 1721 mSDtfsCounter, 768 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 4386 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:10,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 4386 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-23 23:53:10,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24920 states. [2024-11-23 23:53:11,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24920 to 18211. [2024-11-23 23:53:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18211 states, 14148 states have (on average 1.3595561210065026) internal successors, (19235), 14438 states have internal predecessors, (19235), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:53:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18211 states to 18211 states and 25124 transitions. [2024-11-23 23:53:11,965 INFO L78 Accepts]: Start accepts. Automaton has 18211 states and 25124 transitions. Word has length 220 [2024-11-23 23:53:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:11,966 INFO L471 AbstractCegarLoop]: Abstraction has 18211 states and 25124 transitions. [2024-11-23 23:53:11,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-23 23:53:11,967 INFO L276 IsEmpty]: Start isEmpty. Operand 18211 states and 25124 transitions. [2024-11-23 23:53:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:53:11,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:11,990 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:11,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 23:53:11,990 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:11,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1534848324, now seen corresponding path program 1 times [2024-11-23 23:53:11,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:11,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030859401] [2024-11-23 23:53:11,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:11,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-23 23:53:13,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:13,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030859401] [2024-11-23 23:53:13,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030859401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:13,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:13,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-23 23:53:13,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581801858] [2024-11-23 23:53:13,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:13,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:53:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:13,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:53:13,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:53:13,808 INFO L87 Difference]: Start difference. First operand 18211 states and 25124 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:15,117 INFO L93 Difference]: Finished difference Result 36555 states and 50395 transitions. [2024-11-23 23:53:15,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:53:15,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 208 [2024-11-23 23:53:15,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:15,248 INFO L225 Difference]: With dead ends: 36555 [2024-11-23 23:53:15,248 INFO L226 Difference]: Without dead ends: 18379 [2024-11-23 23:53:15,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:53:15,305 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 1 mSDsluCounter, 5682 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6631 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:15,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6631 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:53:15,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18379 states. [2024-11-23 23:53:16,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18379 to 18355. [2024-11-23 23:53:16,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18355 states, 14292 states have (on average 1.3559333893087042) internal successors, (19379), 14582 states have internal predecessors, (19379), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:53:16,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18355 states to 18355 states and 25268 transitions. [2024-11-23 23:53:16,612 INFO L78 Accepts]: Start accepts. Automaton has 18355 states and 25268 transitions. Word has length 208 [2024-11-23 23:53:16,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:16,613 INFO L471 AbstractCegarLoop]: Abstraction has 18355 states and 25268 transitions. [2024-11-23 23:53:16,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 8 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:16,613 INFO L276 IsEmpty]: Start isEmpty. Operand 18355 states and 25268 transitions. [2024-11-23 23:53:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:53:16,628 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:16,628 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:16,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-23 23:53:16,628 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:16,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:16,629 INFO L85 PathProgramCache]: Analyzing trace with hash 801544186, now seen corresponding path program 1 times [2024-11-23 23:53:16,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:16,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118610912] [2024-11-23 23:53:16,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-23 23:53:17,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:17,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118610912] [2024-11-23 23:53:17,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118610912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:17,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:17,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:53:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664584361] [2024-11-23 23:53:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:17,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:53:17,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:17,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:53:17,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:17,152 INFO L87 Difference]: Start difference. First operand 18355 states and 25268 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:17,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:17,756 INFO L93 Difference]: Finished difference Result 36747 states and 50587 transitions. [2024-11-23 23:53:17,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:53:17,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 208 [2024-11-23 23:53:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:17,856 INFO L225 Difference]: With dead ends: 36747 [2024-11-23 23:53:17,857 INFO L226 Difference]: Without dead ends: 18427 [2024-11-23 23:53:17,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:53:17,901 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 1 mSDsluCounter, 1898 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2851 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:17,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2851 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:53:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18427 states. [2024-11-23 23:53:18,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18427 to 18403. [2024-11-23 23:53:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18403 states, 14340 states have (on average 1.354741980474198) internal successors, (19427), 14630 states have internal predecessors, (19427), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1359 states have return successors, (3186), 2672 states have call predecessors, (3186), 2702 states have call successors, (3186) [2024-11-23 23:53:18,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18403 states to 18403 states and 25316 transitions. [2024-11-23 23:53:18,779 INFO L78 Accepts]: Start accepts. Automaton has 18403 states and 25316 transitions. Word has length 208 [2024-11-23 23:53:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:18,780 INFO L471 AbstractCegarLoop]: Abstraction has 18403 states and 25316 transitions. [2024-11-23 23:53:18,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:18,780 INFO L276 IsEmpty]: Start isEmpty. Operand 18403 states and 25316 transitions. [2024-11-23 23:53:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-23 23:53:18,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:18,793 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:18,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-23 23:53:18,794 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:18,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1077586760, now seen corresponding path program 1 times [2024-11-23 23:53:18,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:18,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864335279] [2024-11-23 23:53:18,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:18,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-23 23:53:21,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:21,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864335279] [2024-11-23 23:53:21,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864335279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:21,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:21,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-23 23:53:21,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267532849] [2024-11-23 23:53:21,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:21,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 23:53:21,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:21,257 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 23:53:21,257 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:53:21,258 INFO L87 Difference]: Start difference. First operand 18403 states and 25316 transitions. Second operand has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:53:22,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:22,665 INFO L93 Difference]: Finished difference Result 37197 states and 51272 transitions. [2024-11-23 23:53:22,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:53:22,667 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 3 states have call successors, (23) Word has length 208 [2024-11-23 23:53:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:22,761 INFO L225 Difference]: With dead ends: 37197 [2024-11-23 23:53:22,761 INFO L226 Difference]: Without dead ends: 18829 [2024-11-23 23:53:22,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2024-11-23 23:53:22,801 INFO L435 NwaCegarLoop]: 981 mSDtfsCounter, 10 mSDsluCounter, 12705 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13686 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:22,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13686 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:53:22,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18829 states. [2024-11-23 23:53:23,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18829 to 18581. [2024-11-23 23:53:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18581 states, 14466 states have (on average 1.3494400663625052) internal successors, (19521), 14758 states have internal predecessors, (19521), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1411 states have return successors, (3256), 2722 states have call predecessors, (3256), 2702 states have call successors, (3256) [2024-11-23 23:53:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18581 states to 18581 states and 25480 transitions. [2024-11-23 23:53:23,766 INFO L78 Accepts]: Start accepts. Automaton has 18581 states and 25480 transitions. Word has length 208 [2024-11-23 23:53:23,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:23,766 INFO L471 AbstractCegarLoop]: Abstraction has 18581 states and 25480 transitions. [2024-11-23 23:53:23,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 8.285714285714286) internal successors, (116), 11 states have internal predecessors, (116), 3 states have call successors, (24), 2 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-23 23:53:23,767 INFO L276 IsEmpty]: Start isEmpty. Operand 18581 states and 25480 transitions. [2024-11-23 23:53:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-23 23:53:23,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:23,779 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:23,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-23 23:53:23,779 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:23,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:23,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1363951599, now seen corresponding path program 1 times [2024-11-23 23:53:23,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:23,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974354863] [2024-11-23 23:53:23,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:23,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-23 23:53:24,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:24,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974354863] [2024-11-23 23:53:24,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974354863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:53:24,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825190641] [2024-11-23 23:53:24,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:24,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:53:24,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:53:24,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:53:24,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 23:53:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:25,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 23:53:25,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:53:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-23 23:53:25,420 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:53:25,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825190641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:25,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:53:25,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-23 23:53:25,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744140004] [2024-11-23 23:53:25,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:25,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:53:25,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:25,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:53:25,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-23 23:53:25,423 INFO L87 Difference]: Start difference. First operand 18581 states and 25480 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:29,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-23 23:53:30,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:30,501 INFO L93 Difference]: Finished difference Result 44036 states and 60203 transitions. [2024-11-23 23:53:30,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:53:30,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 233 [2024-11-23 23:53:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:30,631 INFO L225 Difference]: With dead ends: 44036 [2024-11-23 23:53:30,631 INFO L226 Difference]: Without dead ends: 25490 [2024-11-23 23:53:30,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-23 23:53:30,681 INFO L435 NwaCegarLoop]: 1712 mSDtfsCounter, 777 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:30,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 6035 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-23 23:53:30,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25490 states. [2024-11-23 23:53:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25490 to 18597. [2024-11-23 23:53:31,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18597 states, 14482 states have (on average 1.3490539980665655) internal successors, (19537), 14758 states have internal predecessors, (19537), 2703 states have call successors, (2703), 1276 states have call predecessors, (2703), 1411 states have return successors, (3256), 2722 states have call predecessors, (3256), 2702 states have call successors, (3256) [2024-11-23 23:53:31,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18597 states to 18597 states and 25496 transitions. [2024-11-23 23:53:31,861 INFO L78 Accepts]: Start accepts. Automaton has 18597 states and 25496 transitions. Word has length 233 [2024-11-23 23:53:31,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:31,861 INFO L471 AbstractCegarLoop]: Abstraction has 18597 states and 25496 transitions. [2024-11-23 23:53:31,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-23 23:53:31,861 INFO L276 IsEmpty]: Start isEmpty. Operand 18597 states and 25496 transitions. [2024-11-23 23:53:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-23 23:53:31,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:31,873 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:31,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 23:53:32,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-23 23:53:32,074 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:32,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:32,075 INFO L85 PathProgramCache]: Analyzing trace with hash 2026716637, now seen corresponding path program 1 times [2024-11-23 23:53:32,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:32,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550168389] [2024-11-23 23:53:32,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:32,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:53:35,065 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-23 23:53:35,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:53:35,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550168389] [2024-11-23 23:53:35,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550168389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:53:35,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:53:35,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-23 23:53:35,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650289127] [2024-11-23 23:53:35,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:53:35,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-23 23:53:35,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:53:35,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-23 23:53:35,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:53:35,067 INFO L87 Difference]: Start difference. First operand 18597 states and 25496 transitions. Second operand has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-23 23:53:36,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:53:36,480 INFO L93 Difference]: Finished difference Result 37591 states and 51595 transitions. [2024-11-23 23:53:36,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-23 23:53:36,481 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) Word has length 237 [2024-11-23 23:53:36,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:53:36,588 INFO L225 Difference]: With dead ends: 37591 [2024-11-23 23:53:36,589 INFO L226 Difference]: Without dead ends: 19029 [2024-11-23 23:53:36,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:53:36,645 INFO L435 NwaCegarLoop]: 957 mSDtfsCounter, 19 mSDsluCounter, 13318 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 14275 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 23:53:36,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 14275 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 23:53:36,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19029 states. [2024-11-23 23:53:37,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19029 to 18789. [2024-11-23 23:53:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18789 states, 14626 states have (on average 1.3488992205661152) internal successors, (19729), 14902 states have internal predecessors, (19729), 2751 states have call successors, (2751), 1276 states have call predecessors, (2751), 1411 states have return successors, (3304), 2770 states have call predecessors, (3304), 2750 states have call successors, (3304) [2024-11-23 23:53:37,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18789 states to 18789 states and 25784 transitions. [2024-11-23 23:53:37,546 INFO L78 Accepts]: Start accepts. Automaton has 18789 states and 25784 transitions. Word has length 237 [2024-11-23 23:53:37,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:53:37,547 INFO L471 AbstractCegarLoop]: Abstraction has 18789 states and 25784 transitions. [2024-11-23 23:53:37,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.058823529411764) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (28), 2 states have call predecessors, (28), 4 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-23 23:53:37,547 INFO L276 IsEmpty]: Start isEmpty. Operand 18789 states and 25784 transitions. [2024-11-23 23:53:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-23 23:53:37,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:53:37,558 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:37,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-23 23:53:37,559 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:53:37,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:53:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1458768478, now seen corresponding path program 1 times [2024-11-23 23:53:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:53:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731650774] [2024-11-23 23:53:37,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:53:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:53:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:53:38,291 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:53:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:53:39,181 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:53:39,181 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:53:39,182 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:53:39,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-23 23:53:39,187 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:53:39,395 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:53:39,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:53:39 BoogieIcfgContainer [2024-11-23 23:53:39,398 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:53:39,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:53:39,403 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:53:39,403 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:53:39,404 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:51:25" (3/4) ... [2024-11-23 23:53:39,405 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-23 23:53:39,701 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 133. [2024-11-23 23:53:39,867 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:53:39,867 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:53:39,867 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:53:39,868 INFO L158 Benchmark]: Toolchain (without parser) took 144359.29ms. Allocated memory was 117.4MB in the beginning and 6.9GB in the end (delta: 6.8GB). Free memory was 76.2MB in the beginning and 6.1GB in the end (delta: -6.1GB). Peak memory consumption was 713.3MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,868 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:53:39,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1860.08ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 40.1MB in the end (delta: 36.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.22ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 40.1MB in the beginning and 232.0MB in the end (delta: -191.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,869 INFO L158 Benchmark]: Boogie Preprocessor took 472.65ms. Allocated memory is still 293.6MB. Free memory was 232.0MB in the beginning and 182.3MB in the end (delta: 49.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,869 INFO L158 Benchmark]: RCFGBuilder took 7337.78ms. Allocated memory is still 293.6MB. Free memory was 182.3MB in the beginning and 115.5MB in the end (delta: 66.8MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,870 INFO L158 Benchmark]: TraceAbstraction took 134071.71ms. Allocated memory was 293.6MB in the beginning and 6.9GB in the end (delta: 6.6GB). Free memory was 115.5MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. [2024-11-23 23:53:39,870 INFO L158 Benchmark]: Witness Printer took 468.29ms. Allocated memory is still 6.9GB. Free memory was 6.2GB in the beginning and 6.1GB in the end (delta: 46.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 23:53:39,872 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1860.08ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 40.1MB in the end (delta: 36.1MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.22ms. Allocated memory was 117.4MB in the beginning and 293.6MB in the end (delta: 176.2MB). Free memory was 40.1MB in the beginning and 232.0MB in the end (delta: -191.9MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 472.65ms. Allocated memory is still 293.6MB. Free memory was 232.0MB in the beginning and 182.3MB in the end (delta: 49.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * RCFGBuilder took 7337.78ms. Allocated memory is still 293.6MB. Free memory was 182.3MB in the beginning and 115.5MB in the end (delta: 66.8MB). Peak memory consumption was 98.9MB. Max. memory is 16.1GB. * TraceAbstraction took 134071.71ms. Allocated memory was 293.6MB in the beginning and 6.9GB in the end (delta: 6.6GB). Free memory was 115.5MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB. * Witness Printer took 468.29ms. Allocated memory is still 6.9GB. Free memory was 6.2GB in the beginning and 6.1GB in the end (delta: 46.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 5277]: 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"); [5277] - GenericResultAtLocation [Line: 5284]: 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)); [5284] - GenericResultAtLocation [Line: 5292]: 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"); [5292-5293] - GenericResultAtLocation [Line: 5301]: 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"); [5301-5302] - GenericResultAtLocation [Line: 5349]: 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)); [5349] - GenericResultAtLocation [Line: 5357]: 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"); [5357-5358] - GenericResultAtLocation [Line: 5939]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5939] - GenericResultAtLocation [Line: 5942]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5942] - GenericResultAtLocation [Line: 5945]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5945] - GenericResultAtLocation [Line: 5948]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5948] - GenericResultAtLocation [Line: 5951]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5951] - GenericResultAtLocation [Line: 5967]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5967-5968] - GenericResultAtLocation [Line: 5971]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5971-5972] - GenericResultAtLocation [Line: 5975]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5975-5976] - GenericResultAtLocation [Line: 5979]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5979-5980] - GenericResultAtLocation [Line: 5983]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5983-5984] - GenericResultAtLocation [Line: 6007]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6007-6008] - GenericResultAtLocation [Line: 6011]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6011-6012] - GenericResultAtLocation [Line: 6015]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6015-6016] - GenericResultAtLocation [Line: 6019]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6019-6020] - GenericResultAtLocation [Line: 6023]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6023-6024] - GenericResultAtLocation [Line: 6152]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6152] - GenericResultAtLocation [Line: 6155]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6155] - GenericResultAtLocation [Line: 6158]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6158] - GenericResultAtLocation [Line: 6161]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6161] - GenericResultAtLocation [Line: 6164]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6164] - GenericResultAtLocation [Line: 6176]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)argp), "i" (4UL)); [6176-6177] - GenericResultAtLocation [Line: 6194]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6194-6195] - GenericResultAtLocation [Line: 6198]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6198-6199] - GenericResultAtLocation [Line: 6202]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6202-6203] - GenericResultAtLocation [Line: 6206]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6206-6207] - GenericResultAtLocation [Line: 6210]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6210-6211] - GenericResultAtLocation [Line: 6223]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (p), "i" (4UL)); [6223-6224] - GenericResultAtLocation [Line: 6237]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6237-6238] - GenericResultAtLocation [Line: 6241]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6241-6242] - GenericResultAtLocation [Line: 6245]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6245-6246] - GenericResultAtLocation [Line: 6249]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6249-6250] - GenericResultAtLocation [Line: 6253]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6253-6254] - GenericResultAtLocation [Line: 6266]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (p), "i" (4UL)); [6266-6267] - GenericResultAtLocation [Line: 6304]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6304-6305] - GenericResultAtLocation [Line: 6308]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6308-6309] - GenericResultAtLocation [Line: 6312]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6312-6313] - GenericResultAtLocation [Line: 6316]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6316-6317] - GenericResultAtLocation [Line: 6320]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6320-6321] - GenericResultAtLocation [Line: 6333]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" ((int *)argp), "i" (4UL)); [6333-6334] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 5666]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5689] int LDV_IN_INTERRUPT = 1; [L5690] int ldv_state_variable_2 ; [L5691] struct ppp_channel *sync_ops_group0 ; [L5692] int ref_cnt ; [L5693] int ldv_state_variable_1 ; [L5694] int ldv_state_variable_0 ; [L5695] struct tty_struct *ppp_sync_ldisc_group1 ; [L5751] static struct ppp_channel_ops const sync_ops = {& ppp_sync_send, & ppp_sync_ioctl}; [L5751] static struct ppp_channel_ops const sync_ops = {& ppp_sync_send, & ppp_sync_ioctl}; [L5751] static struct ppp_channel_ops const sync_ops = {& ppp_sync_send, & ppp_sync_ioctl}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L5775-L5776] static rwlock_t disc_data_lock = {{{0}, {{0U}}}, 3736018669U, 4294967295U, (void *)-1, {0, {0, 0}, "disc_data_lock", 0, 0UL}}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6096-L6099] static struct tty_ldisc_ops ppp_sync_ldisc = {21507, (char *)"pppsync", 0, 0, & ppp_sync_open, & ppp_sync_close, 0, 0, & ppp_sync_read, & ppp_sync_write, & ppp_synctty_ioctl, 0, 0, & ppp_sync_poll, & ppp_sync_hangup, & ppp_sync_receive, & ppp_sync_wakeup, 0, 0, 0, & __this_module, 0}; [L6637] int ldv_retval_0 ; [L6638] int ldv_retval_1 ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7012] Element set_impl[15] ; [L7013] int last_index = 0; [L7147] Set LDV_SKBS ; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6661] size_t ldvarg11 ; [L6662] size_t tmp ; [L6663] struct file *ldvarg7 ; [L6664] void *tmp___0 ; [L6665] int ldvarg3 ; [L6666] int tmp___1 ; [L6667] unsigned long ldvarg0 ; [L6668] unsigned long tmp___2 ; [L6669] unsigned char *ldvarg12 ; [L6670] void *tmp___3 ; [L6671] unsigned char *ldvarg5 ; [L6672] void *tmp___4 ; [L6673] struct poll_table_struct *ldvarg6 ; [L6674] void *tmp___5 ; [L6675] size_t ldvarg8 ; [L6676] size_t tmp___6 ; [L6677] unsigned int ldvarg1 ; [L6678] unsigned int tmp___7 ; [L6679] char *ldvarg4 ; [L6680] void *tmp___8 ; [L6681] struct file *ldvarg13 ; [L6682] void *tmp___9 ; [L6683] struct file *ldvarg10 ; [L6684] void *tmp___10 ; [L6685] unsigned char *ldvarg9 ; [L6686] void *tmp___11 ; [L6687] struct file *ldvarg2 ; [L6688] void *tmp___12 ; [L6689] unsigned long ldvarg14 ; [L6690] unsigned long tmp___13 ; [L6691] struct sk_buff *ldvarg16 ; [L6692] void *tmp___14 ; [L6693] unsigned int ldvarg15 ; [L6694] unsigned int tmp___15 ; [L6695] int tmp___16 ; [L6696] int tmp___17 ; [L6697] int tmp___18 ; [L6698] int tmp___19 ; [L6700] tmp = __VERIFIER_nondet_size_t() [L6701] ldvarg11 = tmp VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg11=8589934610, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6702] CALL, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=512, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=512, sync_ops={21:0}, sync_ops_group0={0:0}] [L6702] RET, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg11=8589934610, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6702] tmp___0 = ldv_zalloc(512UL) [L6703] ldvarg7 = (struct file *)tmp___0 [L6704] tmp___1 = __VERIFIER_nondet_int() [L6705] ldvarg3 = tmp___1 [L6706] tmp___2 = __VERIFIER_nondet_ulong() [L6707] ldvarg0 = tmp___2 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg3=0, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6708] CALL, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1, sync_ops={21:0}, sync_ops_group0={0:0}] [L6708] RET, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg3=0, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6708] tmp___3 = ldv_zalloc(1UL) [L6709] ldvarg12 = (unsigned char *)tmp___3 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg3=0, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6710] CALL, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1, sync_ops={21:0}, sync_ops_group0={0:0}] [L6710] RET, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg3=0, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6710] tmp___4 = ldv_zalloc(1UL) [L6711] ldvarg5 = (unsigned char *)tmp___4 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg3=0, ldvarg5={0:0}, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6712] CALL, EXPR ldv_zalloc(16UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=16, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=16, sync_ops={21:0}, sync_ops_group0={0:0}] [L6712] RET, EXPR ldv_zalloc(16UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg3=0, ldvarg5={0:0}, ldvarg7={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6712] tmp___5 = ldv_zalloc(16UL) [L6713] ldvarg6 = (struct poll_table_struct *)tmp___5 [L6714] tmp___6 = __VERIFIER_nondet_size_t() [L6715] ldvarg8 = tmp___6 [L6716] tmp___7 = __VERIFIER_nondet_uint() [L6717] ldvarg1 = tmp___7 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6718] CALL, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1, sync_ops={21:0}, sync_ops_group0={0:0}] [L6718] RET, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6718] tmp___8 = ldv_zalloc(1UL) [L6719] ldvarg4 = (char *)tmp___8 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6720] CALL, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=512, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=512, sync_ops={21:0}, sync_ops_group0={0:0}] [L6720] RET, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6720] tmp___9 = ldv_zalloc(512UL) [L6721] ldvarg13 = (struct file *)tmp___9 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6722] CALL, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=512, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=512, sync_ops={21:0}, sync_ops_group0={0:0}] [L6722] RET, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6722] tmp___10 = ldv_zalloc(512UL) [L6723] ldvarg10 = (struct file *)tmp___10 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6724] CALL, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1, sync_ops={21:0}, sync_ops_group0={0:0}] [L6724] RET, EXPR ldv_zalloc(1UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6724] tmp___11 = ldv_zalloc(1UL) [L6725] ldvarg9 = (unsigned char *)tmp___11 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6726] CALL, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=512, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=512, sync_ops={21:0}, sync_ops_group0={0:0}] [L6726] RET, EXPR ldv_zalloc(512UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934632, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6726] tmp___12 = ldv_zalloc(512UL) [L6727] ldvarg2 = (struct file *)tmp___12 [L6728] tmp___13 = __VERIFIER_nondet_ulong() [L6729] ldvarg14 = tmp___13 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6730] CALL, EXPR ldv_zalloc(232UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=232, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=232, sync_ops={21:0}, sync_ops_group0={0:0}] [L6730] RET, EXPR ldv_zalloc(232UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6730] tmp___14 = ldv_zalloc(232UL) [L6731] ldvarg16 = (struct sk_buff *)tmp___14 [L6732] tmp___15 = __VERIFIER_nondet_uint() [L6733] ldvarg15 = tmp___15 [L6734] CALL ldv_initialize() [L7166] CALL ldv_set_init(LDV_SKBS) [L7018] set = set_impl [L7019] last_index = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7166] RET ldv_set_init(LDV_SKBS) [L6734] RET ldv_initialize() [L6735] ldv_state_variable_1 = 0 [L6736] ref_cnt = 0 [L6737] ldv_state_variable_0 = 1 [L6738] ldv_state_variable_2 = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6740] tmp___16 = __VERIFIER_nondet_int() [L6742] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1] [L6742] case 0: [L6838] case 1: [L6840] tmp___18 = __VERIFIER_nondet_int() [L6842] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1, tmp___18=1] [L6838] case 1: [L6850] case 1: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1] [L6838] case 1: [L6852] CALL, EXPR ppp_sync_init() [L6102] int err ; [L6104] CALL, EXPR tty_register_ldisc(14, & ppp_sync_ldisc) [L7358] return __VERIFIER_nondet_int(); [L6104] RET, EXPR tty_register_ldisc(14, & ppp_sync_ldisc) [L6104] err = tty_register_ldisc(14, & ppp_sync_ldisc) [L6105] COND FALSE !(err != 0) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, err=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6109] return (err); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6852] RET, EXPR ppp_sync_init() [L6852] ldv_retval_1 = ppp_sync_init() [L6838] case 1: [L6854] ldv_state_variable_0 = 3 [L6855] ldv_state_variable_2 = 1 [L6856] CALL ldv_initialize_ppp_channel_ops_2() [L6643] void *tmp ; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6645] CALL, EXPR ldv_zalloc(40UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=40, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=40, sync_ops={21:0}, sync_ops_group0={0:0}] [L6645] RET, EXPR ldv_zalloc(40UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6645] tmp = ldv_zalloc(40UL) [L6646] sync_ops_group0 = (struct ppp_channel *)tmp VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=0, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6856] RET ldv_initialize_ppp_channel_ops_2() [L6857] ldv_state_variable_1 = 1 [L6858] CALL ldv_target_type_1() [L6652] void *tmp ; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6654] CALL, EXPR ldv_zalloc(1752UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND TRUE tmp___0 != 0 [L5637] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1752, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1752, sync_ops={21:0}, sync_ops_group0={0:0}] [L6654] RET, EXPR ldv_zalloc(1752UL) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6654] tmp = ldv_zalloc(1752UL) [L6655] ppp_sync_ldisc_group1 = (struct tty_struct *)tmp VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6858] RET ldv_target_type_1() [L6838] case 1: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1] [L6740] tmp___16 = __VERIFIER_nondet_int() [L6742] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=2] [L6742] case 0: [L6838] case 1: [L6876] case 2: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6876] case 2: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6876] case 2: [L6878] tmp___19 = __VERIFIER_nondet_int() [L6880] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___19=0] [L6876] case 2: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6876] case 2: [L6882] CALL ppp_sync_send(sync_ops_group0, ldvarg16) [L6439] struct syncppp *ap ; [L6440] int tmp ; [L6442] EXPR chan->private [L6442] ap = (struct syncppp *)chan->private [L6443] CALL ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6461] int sent ; [L6462] int done ; [L6463] struct tty_struct *tty ; [L6464] int tty_stuffed ; [L6465] int tmp ; [L6466] int tmp___0 ; [L6467] int tmp___1 ; [L6468] int tmp___2 ; [L6470] done = 0 [L6471] EXPR ap->tty [L6471] tty = ap->tty [L6472] tty_stuffed = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=0, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934611:8589934643}, tty_stuffed=0] [L6473] CALL, EXPR spin_trylock_bh(& ap->xmit_lock) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5417] int tmp ; [L5419] CALL, EXPR _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L7268] return __VERIFIER_nondet_int(); [L5419] RET, EXPR _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L5419] tmp = _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L5420] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(lock)={8589934596:58}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6473] RET, EXPR spin_trylock_bh(& ap->xmit_lock) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=0, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934611:8589934643}, tty_stuffed=0] [L6473] tmp = spin_trylock_bh(& ap->xmit_lock) [L6474] COND TRUE tmp == 0 [L6475] return (0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=0, \result=0, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934611:8589934643}, tty_stuffed=0] [L6443] RET ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6444] CALL, EXPR test_and_set_bit(1L, (unsigned long volatile *)(& ap->xmit_flags)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(addr)={8589934596:194}, \old(nr)=1, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5290] char c ; [L5294] return ((int )((signed char )c) != 0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(addr)={8589934596:194}, \old(nr)=1, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6444] RET, EXPR test_and_set_bit(1L, (unsigned long volatile *)(& ap->xmit_flags)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6444] tmp = test_and_set_bit(1L, (unsigned long volatile *)(& ap->xmit_flags)) [L6445] COND FALSE !(tmp != 0) [L6449] CALL, EXPR ppp_sync_txmunge(ap, skb) [L6390] int proto ; [L6391] unsigned char *data ; [L6392] int islcp ; [L6393] u16 tmp ; [L6394] struct sk_buff *npkt ; [L6395] struct sk_buff *tmp___0 ; [L6396] unsigned char *tmp___1 ; [L6397] unsigned int tmp___2 ; [L6399] EXPR skb->data [L6399] data = skb->data [L6400] CALL, EXPR get_unaligned_be16((void const *)data) [L5737] __u16 tmp ; [L5739] CALL, EXPR __be16_to_cpup((__be16 const *)p) [L5328] __u16 tmp ; [L5330] CALL, EXPR __swab16p(p) [L5320] __u16 tmp ; [L5322] EXPR \read(*p) [L5322] CALL, EXPR __fswab16((int )*p) [L5315] EXPR (int )((short )((int )val << 8)) | (int )((short )((int )val >> 8)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5315] return ((__u16 )((int )((short )((int )val << 8)) | (int )((short )((int )val >> 8)))); [L5322] RET, EXPR __fswab16((int )*p) [L5322] tmp = __fswab16((int )*p) [L5323] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5330] RET, EXPR __swab16p(p) [L5330] tmp = __swab16p(p) [L5331] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5739] RET, EXPR __be16_to_cpup((__be16 const *)p) [L5739] tmp = __be16_to_cpup((__be16 const *)p) [L5740] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6400] RET, EXPR get_unaligned_be16((void const *)data) [L6400] tmp = get_unaligned_be16((void const *)data) [L6401] proto = (int )tmp [L6402] EXPR proto == 49185 && (unsigned int )*(data + 2UL) != 0U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, data={29:26}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6402] EXPR proto == 49185 && (unsigned int )*(data + 2UL) != 0U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6402] EXPR (proto == 49185 && (unsigned int )*(data + 2UL) != 0U) && (unsigned int )*(data + 2UL) <= 7U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, data={29:26}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6402] EXPR (proto == 49185 && (unsigned int )*(data + 2UL) != 0U) && (unsigned int )*(data + 2UL) <= 7U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6402] islcp = (proto == 49185 && (unsigned int )*(data + 2UL) != 0U) && (unsigned int )*(data + 2UL) <= 7U [L6403] EXPR \read(*data) [L6403] EXPR (unsigned int )*data == 0U && (int )ap->flags & 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, islcp=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6403] EXPR (unsigned int )*data == 0U && (int )ap->flags & 1 [L6403] EXPR ap->flags [L6403] EXPR (unsigned int )*data == 0U && (int )ap->flags & 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, islcp=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6403] COND FALSE !(((unsigned int )*data == 0U && (int )ap->flags & 1) && islcp == 0) [L6407] EXPR ap->flags VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6407] EXPR ap->flags & 2U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, islcp=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6407] COND TRUE (ap->flags & 2U) == 0U || islcp != 0 [L6408] CALL, EXPR skb_headroom((struct sk_buff const *)skb) [L5565] EXPR skb->data [L5565] EXPR skb->head [L5565] return ((unsigned int )((long )skb->data) - (unsigned int )((long )skb->head)); [L6408] RET, EXPR skb_headroom((struct sk_buff const *)skb) [L6408] tmp___2 = skb_headroom((struct sk_buff const *)skb) [L6409] COND TRUE tmp___2 <= 1U [L6410] EXPR skb->len VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6410] CALL, EXPR ldv_dev_alloc_skb_15(skb->len + 2U) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(length)=4294967298, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6970] struct sk_buff *tmp ; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(length)=4294967298, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6972] CALL, EXPR ldv_skb_alloc() VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7150] void *skb ; [L7151] void *tmp___7 ; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7153] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5631] void *p ; [L5632] void *tmp ; [L5633] int tmp___0 ; [L5635] tmp___0 = __VERIFIER_nondet_int() [L5636] COND FALSE !(tmp___0 != 0) [L5639] EXPR, FCALL calloc(1UL, size) [L5639] tmp = calloc(1UL, size) [L5640] p = tmp VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(size)=248, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, p={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5641] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(cond)=1, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5610] COND FALSE !(!cond) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(cond)=1, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5641] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(size)=248, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, p={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5642] return (p); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(size)=248, \result={-(((__int128) 0 << 64) | 18446744073709551615U):0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7153] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7153] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L7154] skb = (struct sk_buff___0 *)tmp___7 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7155] COND FALSE !(! skb) [L7158] CALL ldv_set_add(LDV_SKBS, skb) [L7026] int i ; [L7028] i = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, e={-(((__int128) 0 << 64) | 18446744073709551615U):0}, i=0, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7030] COND FALSE !(i < last_index) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, e={-(((__int128) 0 << 64) | 18446744073709551615U):0}, last_index=0, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7040] COND TRUE last_index < 15 [L7041] set_impl[last_index] = e [L7042] last_index = last_index + 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7158] RET ldv_set_add(LDV_SKBS, skb) [L7159] return (skb); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \result={-(((__int128) 0 << 64) | 18446744073709551615U):0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6972] RET, EXPR ldv_skb_alloc() VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(length)=4294967298, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6972] tmp = ldv_skb_alloc() [L6973] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, \old(length)=4294967298, \result={-(((__int128) 0 << 64) | 18446744073709551615U):0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6410] RET, EXPR ldv_dev_alloc_skb_15(skb->len + 2U) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6410] tmp___0 = ldv_dev_alloc_skb_15(skb->len + 2U) [L6411] npkt = tmp___0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, npkt={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6412] COND FALSE !((unsigned long )npkt == (unsigned long )((struct sk_buff *)0)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, npkt={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6417] CALL skb_reserve(npkt, 2) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(len)=2, \old(skb)={-(((__int128) 0 << 64) | 18446744073709551615U):0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5579] EXPR skb->data [L5579] skb->data = skb->data + (unsigned long )len [L5580] EXPR skb->tail [L5580] skb->tail = skb->tail + (sk_buff_data_t )len [L6417] RET skb_reserve(npkt, 2) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, npkt={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6418] EXPR skb->len VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6418] CALL, EXPR skb_put(npkt, skb->len) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(arg0)={-(((__int128) 0 << 64) | 18446744073709551615U):0}, \old(arg1)=4294967296, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7333] EXPR arg0->data [L7333] EXPR arg0->tail [L7333] unsigned char *ret_val = arg0->data + arg0->tail; [L7334] EXPR arg0->tail [L7334] arg0->tail += arg1 [L7335] return ret_val; VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(arg0)={-(((__int128) 0 << 64) | 18446744073709551615U):0}, \old(arg1)=4294967296, \result={8589934596:39}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6418] RET, EXPR skb_put(npkt, skb->len) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, npkt={-(((__int128) 0 << 64) | 18446744073709551615U):0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6418] tmp___1 = skb_put(npkt, skb->len) [L6419] EXPR skb->len [L6419] CALL skb_copy_from_linear_data((struct sk_buff const *)skb, (void *)tmp___1, skb->len) [L5592] size_t __len ; [L5593] void *__ret ; [L5595] __len = (size_t )len [L5596] EXPR skb->data VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5596] EXPR, FCALL memcpy(to, (void const *)skb->data, __len) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5596] __ret = memcpy(to, (void const *)skb->data, __len) [L6419] RET skb_copy_from_linear_data((struct sk_buff const *)skb, (void *)tmp___1, skb->len) [L6420] CALL ldv_consume_skb_17(skb) [L6986] CALL ldv_skb_free(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=1, \old(skb)={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7173] CALL ldv_set_remove(LDV_SKBS, skb) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7051] int i ; [L7052] int deleted_index ; [L7054] deleted_index = -1 [L7055] i = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, deleted_index=-1, disc_data_lock={22:0}, e={0:0}, i=0, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7057] COND TRUE i < last_index VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, deleted_index=-1, disc_data_lock={22:0}, e={0:0}, i=0, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7061] EXPR set_impl[i] VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, deleted_index=-1, disc_data_lock={22:0}, e={0:0}, i=0, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7061] COND FALSE !((unsigned long )set_impl[i] == (unsigned long )e) [L7066] i = i + 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, deleted_index=-1, disc_data_lock={22:0}, e={0:0}, i=1, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7057] COND FALSE !(i < last_index) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, deleted_index=-1, disc_data_lock={22:0}, e={0:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7068] COND FALSE !(deleted_index != -1) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, e={0:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7173] RET ldv_set_remove(LDV_SKBS, skb) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=1, \old(skb)={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={0:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6986] RET ldv_skb_free(ldv_func_arg1) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_func_arg1={0:0}, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6420] RET ldv_consume_skb_17(skb) [L6421] skb = npkt VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6424] CALL skb_push(skb, 2U) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(arg0)={-(((__int128) 0 << 64) | 18446744073709551615U):0}, \old(arg1)=2, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7330] CALL, EXPR ldv_malloc(sizeof(unsigned char)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5614] void *p ; [L5615] void *tmp ; [L5616] int tmp___0 ; [L5618] tmp___0 = __VERIFIER_nondet_int() [L5619] COND TRUE tmp___0 != 0 [L5620] return ((void *)0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(size)=1, \result={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, size=1, sync_ops={21:0}, sync_ops_group0={0:0}] [L7330] RET, EXPR ldv_malloc(sizeof(unsigned char)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(arg0)={-(((__int128) 0 << 64) | 18446744073709551615U):0}, \old(arg1)=2, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7330] return ldv_malloc(sizeof(unsigned char)); [L6424] RET skb_push(skb, 2U) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6425] EXPR skb->data [L6425] *(skb->data) = 255U [L6426] EXPR skb->data [L6426] *(skb->data + 1UL) = 3U [L6429] ap->last_xmit = jiffies [L6430] (unsigned long )skb != (unsigned long )((struct sk_buff *)0) && (ap->flags & 262144U) != 0U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6430] (unsigned long )skb != (unsigned long )((struct sk_buff *)0) && (ap->flags & 262144U) != 0U [L6430] EXPR ap->flags VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6430] EXPR ap->flags & 262144U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6430] (unsigned long )skb != (unsigned long )((struct sk_buff *)0) && (ap->flags & 262144U) != 0U VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, skb={-(((__int128) 0 << 64) | 18446744073709551615U):0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6430] COND FALSE !((unsigned long )skb != (unsigned long )((struct sk_buff *)0) && (ap->flags & 262144U) != 0U) [L6434] return (skb); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result={-(((__int128) 0 << 64) | 18446744073709551615U):0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6449] RET, EXPR ppp_sync_txmunge(ap, skb) [L6449] skb = ppp_sync_txmunge(ap, skb) [L6450] COND TRUE (unsigned long )skb != (unsigned long )((struct sk_buff *)0) [L6451] ap->tpkt = skb VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6455] CALL ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=1, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6461] int sent ; [L6462] int done ; [L6463] struct tty_struct *tty ; [L6464] int tty_stuffed ; [L6465] int tmp ; [L6466] int tmp___0 ; [L6467] int tmp___1 ; [L6468] int tmp___2 ; [L6470] done = 0 [L6471] EXPR ap->tty [L6471] tty = ap->tty [L6472] tty_stuffed = 0 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=1, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934594:8589934644}, tty_stuffed=0] [L6473] CALL, EXPR spin_trylock_bh(& ap->xmit_lock) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=1, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5417] int tmp ; [L5419] CALL, EXPR _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L7268] return __VERIFIER_nondet_int(); [L5419] RET, EXPR _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L5419] tmp = _raw_spin_trylock_bh(& lock->ldv_6338.rlock) [L5420] return (tmp); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=1, \old(lock)={8589934596:58}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6473] RET, EXPR spin_trylock_bh(& ap->xmit_lock) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=1, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934594:8589934644}, tty_stuffed=0] [L6473] tmp = spin_trylock_bh(& ap->xmit_lock) [L6474] COND TRUE tmp == 0 [L6475] return (0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(ap)={8589934596:38}, \old(last_index)=1, \result=0, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, done=0, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tty={8589934594:8589934644}, tty_stuffed=0] [L6455] RET ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6456] return (1); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=1, __this_module={8589934658:8589934625}, ap={8589934596:38}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6882] RET ppp_sync_send(sync_ops_group0, ldvarg16) [L6883] ldv_state_variable_2 = 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___19=0] [L6740] tmp___16 = __VERIFIER_nondet_int() [L6742] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1, tmp___19=0] [L6742] case 0: [L6838] case 1: [L6840] tmp___18 = __VERIFIER_nondet_int() [L6842] case 0: VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1, tmp___18=0, tmp___19=0] [L6838] case 1: [L6844] CALL ppp_sync_cleanup() [L6627] int tmp ; [L6629] CALL, EXPR tty_unregister_ldisc(14) [L7366] return __VERIFIER_nondet_int(); [L6629] RET, EXPR tty_unregister_ldisc(14) [L6629] tmp = tty_unregister_ldisc(14) [L6630] COND FALSE !(tmp != 0) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L6844] RET ppp_sync_cleanup() [L6845] ldv_state_variable_0 = 2 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldvarg0=8589934600, ldvarg10={0:0}, ldvarg11=8589934610, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934633, ldvarg15=8589934602, ldvarg16={0:0}, ldvarg1=8589934632, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934595, ldvarg9={0:0}, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}, tmp___16=1, tmp___18=0, tmp___19=0] [L6907] CALL ldv_check_final_state() [L7217] int tmp___7 ; [L7219] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L7108] return (last_index == 0); VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \result=0, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7219] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L7219] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L7220] COND FALSE !(\read(tmp___7)) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L7222] CALL ldv_error() VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] [L5666] reach_error() VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934658:8589934625}, disc_data_lock={22:0}, jiffies=8589934620, last_index=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ppp_sync_ldisc={23:0}, ppp_sync_ldisc_group1={0:0}, ref_cnt=0, set_impl={24:0}, sync_ops={21:0}, sync_ops_group0={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 50 procedures, 734 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 133.8s, OverallIterations: 18, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 97.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 18206 SdHoareTripleChecker+Valid, 85.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17856 mSDsluCounter, 82610 SdHoareTripleChecker+Invalid, 83.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 63933 mSDsCounter, 4529 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6665 IncrementalHoareTripleChecker+Invalid, 11212 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4529 mSolverCounterUnsat, 18677 mSDtfsCounter, 6665 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 772 GetRequests, 669 SyntacticMatches, 3 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18789occurred in iteration=17, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 15174 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 14.1s InterpolantComputationTime, 3681 NumberOfCodeBlocks, 3681 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3623 ConstructedInterpolants, 0 QuantifiedInterpolants, 5205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3383 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 6032/6070 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-23 23:53:39,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e0bf429-dd75-4f3a-b131-a1fad43ef38f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE