./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 18:48:57,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:48:57,387 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-08 18:48:57,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:48:57,396 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:48:57,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:48:57,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:48:57,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:48:57,434 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:48:57,437 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:48:57,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:48:57,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:48:57,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:48:57,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:48:57,439 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:48:57,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:48:57,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:48:57,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:48:57,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:48:57,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:48:57,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:48:57,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:48:57,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:48:57,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:48:57,447 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:48:57,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:48:57,447 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:48:57,448 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:48:57,448 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:48:57,448 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:48:57,449 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:48:57,449 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:48:57,449 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:48:57,450 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:48:57,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:48:57,450 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:48:57,450 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:48:57,451 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:48:57,451 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:48:57,451 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-08 18:48:57,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:48:57,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:48:57,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:48:57,802 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:48:57,803 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:48:57,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/../../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 Unable to find full path for "g++" [2024-11-08 18:48:59,745 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:49:00,248 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:49:00,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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 [2024-11-08 18:49:00,293 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/47b5a9b40/3cb6d8fd278c4b19a7cbd2f17d26efa5/FLAGc159eac67 [2024-11-08 18:49:00,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/47b5a9b40/3cb6d8fd278c4b19a7cbd2f17d26efa5 [2024-11-08 18:49:00,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:49:00,321 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:49:00,323 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:00,323 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:49:00,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:49:00,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:00" (1/1) ... [2024-11-08 18:49:00,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@374cbdeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:00, skipping insertion in model container [2024-11-08 18:49:00,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:00" (1/1) ... [2024-11-08 18:49:00,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:49:01,539 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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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] [2024-11-08 18:49:01,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:01,894 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:49:02,007 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] [2024-11-08 18:49:02,009 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] [2024-11-08 18:49:02,010 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] [2024-11-08 18:49:02,010 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] [2024-11-08 18:49:02,013 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] [2024-11-08 18:49:02,014 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] [2024-11-08 18:49:02,030 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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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] [2024-11-08 18:49:02,044 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] [2024-11-08 18:49:02,045 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] [2024-11-08 18:49:02,045 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] [2024-11-08 18:49:02,045 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] [2024-11-08 18:49:02,046 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] [2024-11-08 18:49:02,047 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] [2024-11-08 18:49:02,047 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] [2024-11-08 18:49:02,047 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] [2024-11-08 18:49:02,048 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] [2024-11-08 18:49:02,048 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] [2024-11-08 18:49:02,049 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] [2024-11-08 18:49:02,050 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] [2024-11-08 18:49:02,050 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] [2024-11-08 18:49:02,050 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] [2024-11-08 18:49:02,051 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] [2024-11-08 18:49:02,056 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] [2024-11-08 18:49:02,057 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] [2024-11-08 18:49:02,057 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] [2024-11-08 18:49:02,058 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] [2024-11-08 18:49:02,058 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] [2024-11-08 18:49:02,058 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] [2024-11-08 18:49:02,060 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] [2024-11-08 18:49:02,060 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] [2024-11-08 18:49:02,061 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] [2024-11-08 18:49:02,061 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] [2024-11-08 18:49:02,061 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] [2024-11-08 18:49:02,062 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] [2024-11-08 18:49:02,063 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] [2024-11-08 18:49:02,063 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] [2024-11-08 18:49:02,064 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] [2024-11-08 18:49:02,064 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] [2024-11-08 18:49:02,064 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] [2024-11-08 18:49:02,065 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] [2024-11-08 18:49:02,068 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] [2024-11-08 18:49:02,068 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] [2024-11-08 18:49:02,068 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] [2024-11-08 18:49:02,069 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] [2024-11-08 18:49:02,069 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] [2024-11-08 18:49:02,070 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] [2024-11-08 18:49:02,246 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:02,334 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:49:02,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02 WrapperNode [2024-11-08 18:49:02,335 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:02,336 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:02,336 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:49:02,337 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:49:02,345 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,505 INFO L138 Inliner]: procedures = 176, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1979 [2024-11-08 18:49:02,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:02,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:49:02,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:49:02,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:49:02,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,835 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [2, 7, 120, 1, 13, 24, 2, 1, 20]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 10, 1, 0, 0, 2, 1, 15]. The 86 writes are split as follows [0, 6, 41, 0, 13, 24, 0, 0, 2]. [2024-11-08 18:49:02,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,946 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:49:02,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:49:02,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:49:02,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:49:02,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (1/1) ... [2024-11-08 18:49:02,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:02,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:03,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:49:03,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:49:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-08 18:49:03,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-08 18:49:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-08 18:49:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-08 18:49:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-08 18:49:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-08 18:49:03,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-08 18:49:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-08 18:49:03,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-08 18:49:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-08 18:49:03,055 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-08 18:49:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-08 18:49:03,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-08 18:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-08 18:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-08 18:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-08 18:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-08 18:49:03,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-08 18:49:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-08 18:49:03,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 18:49:03,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 18:49:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-08 18:49:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-08 18:49:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-08 18:49:03,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-08 18:49:03,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:49:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:49:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 18:49:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 18:49:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 18:49:03,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-08 18:49:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-08 18:49:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-08 18:49:03,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-08 18:49:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-08 18:49:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-08 18:49:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-08 18:49:03,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-08 18:49:03,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:49:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:49:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:49:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:49:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:49:03,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:49:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:49:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-08 18:49:03,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-08 18:49:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:49:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:49:03,064 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-08 18:49:03,065 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-08 18:49:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-08 18:49:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-08 18:49:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-08 18:49:03,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-08 18:49:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-08 18:49:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-08 18:49:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-08 18:49:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-08 18:49:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-08 18:49:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-08 18:49:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-08 18:49:03,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-08 18:49:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-08 18:49:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-08 18:49:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-08 18:49:03,069 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-08 18:49:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:49:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:49:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 18:49:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 18:49:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 18:49:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-08 18:49:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-08 18:49:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-08 18:49:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-08 18:49:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-08 18:49:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-08 18:49:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-08 18:49:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-08 18:49:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-08 18:49:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-08 18:49:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-08 18:49:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-08 18:49:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-08 18:49:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-08 18:49:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-08 18:49:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-08 18:49:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:49:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:49:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:49:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-08 18:49:03,074 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-08 18:49:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 18:49:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 18:49:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 18:49:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:49:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-08 18:49:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-08 18:49:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-08 18:49:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-08 18:49:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:49:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:49:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:49:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:49:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 18:49:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 18:49:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 18:49:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 18:49:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 18:49:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-08 18:49:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-08 18:49:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-08 18:49:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-08 18:49:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-08 18:49:03,082 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 18:49:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 18:49:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 18:49:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 18:49:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 18:49:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 18:49:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-08 18:49:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-08 18:49:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-08 18:49:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-08 18:49:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-08 18:49:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-08 18:49:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-08 18:49:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-08 18:49:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-08 18:49:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:49:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-08 18:49:03,086 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-08 18:49:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-08 18:49:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-08 18:49:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-08 18:49:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-08 18:49:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-08 18:49:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-08 18:49:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:49:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:49:03,090 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-08 18:49:03,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-08 18:49:03,639 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:49:03,642 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:49:03,734 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-08 18:49:10,007 INFO L? ?]: Removed 1116 outVars from TransFormulas that were not future-live. [2024-11-08 18:49:10,007 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:49:10,036 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:49:10,036 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 18:49:10,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:10 BoogieIcfgContainer [2024-11-08 18:49:10,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:49:10,043 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:49:10,043 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:49:10,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:49:10,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:49:00" (1/3) ... [2024-11-08 18:49:10,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdc53f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:10, skipping insertion in model container [2024-11-08 18:49:10,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:02" (2/3) ... [2024-11-08 18:49:10,050 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdc53f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:10, skipping insertion in model container [2024-11-08 18:49:10,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:10" (3/3) ... [2024-11-08 18:49:10,052 INFO L112 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 [2024-11-08 18:49:10,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:49:10,072 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:49:10,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:49:10,198 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;@10b506a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:49:10,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:49:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 698 states, 532 states have (on average 1.394736842105263) internal successors, (742), 547 states have internal predecessors, (742), 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) [2024-11-08 18:49:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 18:49:10,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:10,223 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:49:10,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:10,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:10,232 INFO L85 PathProgramCache]: Analyzing trace with hash 2094244539, now seen corresponding path program 1 times [2024-11-08 18:49:10,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:10,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331357339] [2024-11-08 18:49:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:49:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:49:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:49:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:49:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:49:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:49:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:49:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:49:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:49:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:49:11,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:11,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331357339] [2024-11-08 18:49:11,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331357339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:11,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:11,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:11,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58666114] [2024-11-08 18:49:11,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:11,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:49:11,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:11,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:49:11,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:49:11,433 INFO L87 Difference]: Start difference. First operand has 698 states, 532 states have (on average 1.394736842105263) internal successors, (742), 547 states have internal predecessors, (742), 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 4 states, 4 states have (on average 7.5) 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) [2024-11-08 18:49:15,466 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 [] [2024-11-08 18:49:19,473 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 [] [2024-11-08 18:49:22,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:22,187 INFO L93 Difference]: Finished difference Result 2173 states and 3186 transitions. [2024-11-08 18:49:22,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:49:22,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) 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 [2024-11-08 18:49:22,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:22,218 INFO L225 Difference]: With dead ends: 2173 [2024-11-08 18:49:22,218 INFO L226 Difference]: Without dead ends: 1464 [2024-11-08 18:49:22,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:22,230 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1335 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 316 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1432 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 1183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:22,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1432 Valid, 1778 Invalid, 1183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-08 18:49:22,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2024-11-08 18:49:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1326. [2024-11-08 18:49:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 1022 states have (on average 1.37573385518591) internal successors, (1406), 1040 states have internal predecessors, (1406), 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) [2024-11-08 18:49:22,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1855 transitions. [2024-11-08 18:49:22,419 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1855 transitions. Word has length 78 [2024-11-08 18:49:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:22,420 INFO L471 AbstractCegarLoop]: Abstraction has 1326 states and 1855 transitions. [2024-11-08 18:49:22,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) 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) [2024-11-08 18:49:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1855 transitions. [2024-11-08 18:49:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 18:49:22,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:22,425 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:49:22,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:49:22,426 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:22,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:22,426 INFO L85 PathProgramCache]: Analyzing trace with hash 357309821, now seen corresponding path program 1 times [2024-11-08 18:49:22,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:22,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973277705] [2024-11-08 18:49:22,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:22,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:22,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:49:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:49:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:49:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:49:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:49:23,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:49:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:49:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:49:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:49:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:49:23,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:23,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973277705] [2024-11-08 18:49:23,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973277705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:23,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:23,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:49:23,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240122858] [2024-11-08 18:49:23,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:23,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:49:23,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:49:23,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:49:23,135 INFO L87 Difference]: Start difference. First operand 1326 states and 1855 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) 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) [2024-11-08 18:49:27,149 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 [] [2024-11-08 18:49:30,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:30,409 INFO L93 Difference]: Finished difference Result 4203 states and 5995 transitions. [2024-11-08 18:49:30,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:49:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) 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 [2024-11-08 18:49:30,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:30,434 INFO L225 Difference]: With dead ends: 4203 [2024-11-08 18:49:30,434 INFO L226 Difference]: Without dead ends: 2893 [2024-11-08 18:49:30,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:49:30,442 INFO L432 NwaCegarLoop]: 729 mSDtfsCounter, 1366 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 312 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 3067 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:30,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1466 Valid, 3067 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 1622 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-08 18:49:30,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2024-11-08 18:49:30,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2685. [2024-11-08 18:49:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2070 states have (on average 1.3777777777777778) internal successors, (2852), 2112 states have internal predecessors, (2852), 454 states have call successors, (454), 157 states have call predecessors, (454), 160 states have return successors, (499), 445 states have call predecessors, (499), 453 states have call successors, (499) [2024-11-08 18:49:30,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3805 transitions. [2024-11-08 18:49:30,614 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3805 transitions. Word has length 82 [2024-11-08 18:49:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:30,617 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3805 transitions. [2024-11-08 18:49:30,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) 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) [2024-11-08 18:49:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3805 transitions. [2024-11-08 18:49:30,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-08 18:49:30,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:30,635 INFO L215 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, 1, 1] [2024-11-08 18:49:30,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:49:30,636 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:30,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:30,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1470599675, now seen corresponding path program 1 times [2024-11-08 18:49:30,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:30,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600832250] [2024-11-08 18:49:30,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:30,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:49:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:49:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:49:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:49:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:49:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:49:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:49:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:49:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:49:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-08 18:49:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:49:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:49:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:49:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:49:31,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:31,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600832250] [2024-11-08 18:49:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600832250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:31,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:49:31,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960554677] [2024-11-08 18:49:31,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:31,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:49:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:49:31,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:49:31,210 INFO L87 Difference]: Start difference. First operand 2685 states and 3805 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:49:35,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:49:39,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:49:43,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:49:47,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:49:50,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:50,854 INFO L93 Difference]: Finished difference Result 7559 states and 10766 transitions. [2024-11-08 18:49:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:49:50,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 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 128 [2024-11-08 18:49:50,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:50,883 INFO L225 Difference]: With dead ends: 7559 [2024-11-08 18:49:50,883 INFO L226 Difference]: Without dead ends: 4898 [2024-11-08 18:49:50,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:49:50,893 INFO L432 NwaCegarLoop]: 670 mSDtfsCounter, 1989 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 820 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 2132 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 820 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:50,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2074 Valid, 2132 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [820 Valid, 1319 Invalid, 4 Unknown, 0 Unchecked, 19.1s Time] [2024-11-08 18:49:50,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4898 states. [2024-11-08 18:49:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4898 to 4306. [2024-11-08 18:49:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 3326 states have (on average 1.3743235117257968) internal successors, (4571), 3383 states have internal predecessors, (4571), 697 states have call successors, (697), 257 states have call predecessors, (697), 282 states have return successors, (816), 699 states have call predecessors, (816), 696 states have call successors, (816) [2024-11-08 18:49:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6084 transitions. [2024-11-08 18:49:51,242 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 6084 transitions. Word has length 128 [2024-11-08 18:49:51,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:51,244 INFO L471 AbstractCegarLoop]: Abstraction has 4306 states and 6084 transitions. [2024-11-08 18:49:51,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-08 18:49:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 6084 transitions. [2024-11-08 18:49:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 18:49:51,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:51,258 INFO L215 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, 1, 1] [2024-11-08 18:49:51,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:49:51,259 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:51,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:51,259 INFO L85 PathProgramCache]: Analyzing trace with hash -879380225, now seen corresponding path program 1 times [2024-11-08 18:49:51,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:51,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573450214] [2024-11-08 18:49:51,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:51,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:49:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:49:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:49:51,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:49:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:49:51,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:49:51,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:49:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:49:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:49:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:49:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:49:51,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:49:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:49:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:49:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:49:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 18:49:51,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 18:49:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:51,809 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:49:51,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:51,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573450214] [2024-11-08 18:49:51,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573450214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:51,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:51,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:49:51,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459388887] [2024-11-08 18:49:51,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:51,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:49:51,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:49:51,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:49:51,814 INFO L87 Difference]: Start difference. First operand 4306 states and 6084 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:49:55,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:49:59,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:03,836 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 [] [2024-11-08 18:50:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:08,033 INFO L93 Difference]: Finished difference Result 11064 states and 15579 transitions. [2024-11-08 18:50:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:50:08,034 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 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 149 [2024-11-08 18:50:08,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:08,072 INFO L225 Difference]: With dead ends: 11064 [2024-11-08 18:50:08,072 INFO L226 Difference]: Without dead ends: 6782 [2024-11-08 18:50:08,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:50:08,086 INFO L432 NwaCegarLoop]: 874 mSDtfsCounter, 1243 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 430 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1334 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:08,086 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1334 Valid, 3234 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 1722 Invalid, 3 Unknown, 0 Unchecked, 15.6s Time] [2024-11-08 18:50:08,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6782 states. [2024-11-08 18:50:08,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6782 to 6044. [2024-11-08 18:50:08,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6044 states, 4644 states have (on average 1.3613264427217915) internal successors, (6322), 4741 states have internal predecessors, (6322), 962 states have call successors, (962), 398 states have call predecessors, (962), 437 states have return successors, (1129), 964 states have call predecessors, (1129), 961 states have call successors, (1129) [2024-11-08 18:50:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6044 states to 6044 states and 8413 transitions. [2024-11-08 18:50:08,542 INFO L78 Accepts]: Start accepts. Automaton has 6044 states and 8413 transitions. Word has length 149 [2024-11-08 18:50:08,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:08,543 INFO L471 AbstractCegarLoop]: Abstraction has 6044 states and 8413 transitions. [2024-11-08 18:50:08,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:50:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 6044 states and 8413 transitions. [2024-11-08 18:50:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:50:08,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:08,554 INFO L215 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] [2024-11-08 18:50:08,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:50:08,555 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:08,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1885169206, now seen corresponding path program 1 times [2024-11-08 18:50:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737052751] [2024-11-08 18:50:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:08,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:50:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:08,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:09,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:09,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:50:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:50:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-08 18:50:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:50:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:50:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:50:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:09,148 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-08 18:50:09,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:09,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737052751] [2024-11-08 18:50:09,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737052751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:09,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:09,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:50:09,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568580945] [2024-11-08 18:50:09,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:09,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:50:09,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:09,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:50:09,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:09,153 INFO L87 Difference]: Start difference. First operand 6044 states and 8413 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 18:50:13,164 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 [] [2024-11-08 18:50:17,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:21,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:25,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:29,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:33,751 INFO L93 Difference]: Finished difference Result 16168 states and 22563 transitions. [2024-11-08 18:50:33,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:50:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 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 151 [2024-11-08 18:50:33,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:33,809 INFO L225 Difference]: With dead ends: 16168 [2024-11-08 18:50:33,809 INFO L226 Difference]: Without dead ends: 10159 [2024-11-08 18:50:33,826 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:50:33,827 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 1970 mSDsluCounter, 2297 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 699 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 2607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 699 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:33,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 2977 Invalid, 2607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [699 Valid, 1903 Invalid, 5 Unknown, 0 Unchecked, 23.9s Time] [2024-11-08 18:50:33,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10159 states. [2024-11-08 18:50:34,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10159 to 8975. [2024-11-08 18:50:34,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8975 states, 6966 states have (on average 1.3607522250933104) internal successors, (9479), 7098 states have internal predecessors, (9479), 1335 states have call successors, (1335), 608 states have call predecessors, (1335), 673 states have return successors, (1570), 1352 states have call predecessors, (1570), 1334 states have call successors, (1570) [2024-11-08 18:50:34,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8975 states to 8975 states and 12384 transitions. [2024-11-08 18:50:34,484 INFO L78 Accepts]: Start accepts. Automaton has 8975 states and 12384 transitions. Word has length 151 [2024-11-08 18:50:34,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:34,486 INFO L471 AbstractCegarLoop]: Abstraction has 8975 states and 12384 transitions. [2024-11-08 18:50:34,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 18:50:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8975 states and 12384 transitions. [2024-11-08 18:50:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 18:50:34,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:34,498 INFO L215 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] [2024-11-08 18:50:34,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:50:34,498 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:34,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:34,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1893787116, now seen corresponding path program 1 times [2024-11-08 18:50:34,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:34,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041519263] [2024-11-08 18:50:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:34,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:50:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:34,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:34,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:34,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:50:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:50:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:50:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:34,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:50:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:35,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:50:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:35,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:35,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:50:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:35,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:50:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-08 18:50:35,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:35,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041519263] [2024-11-08 18:50:35,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041519263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:35,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:35,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:50:35,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058186362] [2024-11-08 18:50:35,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:35,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:50:35,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:35,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:50:35,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:35,084 INFO L87 Difference]: Start difference. First operand 8975 states and 12384 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:50:39,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:43,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:47,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:51,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:50:53,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:53,791 INFO L93 Difference]: Finished difference Result 14896 states and 20837 transitions. [2024-11-08 18:50:53,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:50:53,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 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 156 [2024-11-08 18:50:53,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:53,878 INFO L225 Difference]: With dead ends: 14896 [2024-11-08 18:50:53,878 INFO L226 Difference]: Without dead ends: 10161 [2024-11-08 18:50:53,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:50:53,894 INFO L432 NwaCegarLoop]: 656 mSDtfsCounter, 915 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 464 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:53,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [934 Valid, 2157 Invalid, 1747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 1279 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2024-11-08 18:50:53,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10161 states. [2024-11-08 18:50:54,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10161 to 8995. [2024-11-08 18:50:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8995 states, 6986 states have (on average 1.3597194388777556) internal successors, (9499), 7118 states have internal predecessors, (9499), 1335 states have call successors, (1335), 608 states have call predecessors, (1335), 673 states have return successors, (1570), 1352 states have call predecessors, (1570), 1334 states have call successors, (1570) [2024-11-08 18:50:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8995 states to 8995 states and 12404 transitions. [2024-11-08 18:50:54,531 INFO L78 Accepts]: Start accepts. Automaton has 8995 states and 12404 transitions. Word has length 156 [2024-11-08 18:50:54,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:54,532 INFO L471 AbstractCegarLoop]: Abstraction has 8995 states and 12404 transitions. [2024-11-08 18:50:54,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-08 18:50:54,533 INFO L276 IsEmpty]: Start isEmpty. Operand 8995 states and 12404 transitions. [2024-11-08 18:50:54,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 18:50:54,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:54,548 INFO L215 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, 1, 1] [2024-11-08 18:50:54,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:50:54,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:54,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:54,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1267436725, now seen corresponding path program 1 times [2024-11-08 18:50:54,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:54,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581653929] [2024-11-08 18:50:54,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:54,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:50:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:50:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:50:55,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:50:55,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:50:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:50:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:50:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:50:55,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:50:55,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:50:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:50:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-08 18:50:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:50:55,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 18:50:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:50:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:50:55,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 18:50:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:55,885 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-08 18:50:55,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:55,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581653929] [2024-11-08 18:50:55,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581653929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:55,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:55,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:50:55,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205429160] [2024-11-08 18:50:55,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:55,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:50:55,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:55,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:50:55,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:50:55,888 INFO L87 Difference]: Start difference. First operand 8995 states and 12404 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:50:59,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:03,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:07,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:11,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:15,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:19,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:26,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:26,468 INFO L93 Difference]: Finished difference Result 19939 states and 27576 transitions. [2024-11-08 18:51:26,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-08 18:51:26,469 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2024-11-08 18:51:26,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:26,513 INFO L225 Difference]: With dead ends: 19939 [2024-11-08 18:51:26,513 INFO L226 Difference]: Without dead ends: 10979 [2024-11-08 18:51:26,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:51:26,536 INFO L432 NwaCegarLoop]: 667 mSDtfsCounter, 2429 mSDsluCounter, 4604 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 938 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 5271 SdHoareTripleChecker+Invalid, 5062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 938 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:26,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 5271 Invalid, 5062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [938 Valid, 4118 Invalid, 6 Unknown, 0 Unchecked, 29.5s Time] [2024-11-08 18:51:26,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10979 states. [2024-11-08 18:51:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10979 to 9373. [2024-11-08 18:51:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9373 states, 7264 states have (on average 1.353386563876652) internal successors, (9831), 7402 states have internal predecessors, (9831), 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) [2024-11-08 18:51:27,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9373 states to 9373 states and 12778 transitions. [2024-11-08 18:51:27,228 INFO L78 Accepts]: Start accepts. Automaton has 9373 states and 12778 transitions. Word has length 158 [2024-11-08 18:51:27,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:27,229 INFO L471 AbstractCegarLoop]: Abstraction has 9373 states and 12778 transitions. [2024-11-08 18:51:27,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:51:27,230 INFO L276 IsEmpty]: Start isEmpty. Operand 9373 states and 12778 transitions. [2024-11-08 18:51:27,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 18:51:27,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:27,314 INFO L215 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, 1, 1] [2024-11-08 18:51:27,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:51:27,314 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:27,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:27,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1889377544, now seen corresponding path program 1 times [2024-11-08 18:51:27,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:27,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359337425] [2024-11-08 18:51:27,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:27,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:27,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:51:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:51:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:51:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:51:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:51:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:51:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:51:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:51:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:51:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:51:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:51:28,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:51:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:51:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:51:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:51:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:51:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-11-08 18:51:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-11-08 18:51:28,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:51:28,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359337425] [2024-11-08 18:51:28,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359337425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:51:28,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:51:28,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:51:28,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114278389] [2024-11-08 18:51:28,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:51:28,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:51:28,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:51:28,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:51:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:51:28,802 INFO L87 Difference]: Start difference. First operand 9373 states and 12778 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 18:51:32,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:36,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:40,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:44,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:51:48,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:51:48,439 INFO L93 Difference]: Finished difference Result 19889 states and 27298 transitions. [2024-11-08 18:51:48,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:51:48,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 6 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 196 [2024-11-08 18:51:48,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:51:48,482 INFO L225 Difference]: With dead ends: 19889 [2024-11-08 18:51:48,483 INFO L226 Difference]: Without dead ends: 10551 [2024-11-08 18:51:48,505 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:51:48,505 INFO L432 NwaCegarLoop]: 659 mSDtfsCounter, 552 mSDsluCounter, 3094 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 320 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 3753 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:51:48,506 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 3753 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2078 Invalid, 4 Unknown, 0 Unchecked, 18.8s Time] [2024-11-08 18:51:48,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10551 states. [2024-11-08 18:51:49,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10551 to 9437. [2024-11-08 18:51:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9437 states, 7312 states have (on average 1.3510667396061269) internal successors, (9879), 7450 states have internal predecessors, (9879), 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) [2024-11-08 18:51:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9437 states to 9437 states and 12850 transitions. [2024-11-08 18:51:49,139 INFO L78 Accepts]: Start accepts. Automaton has 9437 states and 12850 transitions. Word has length 196 [2024-11-08 18:51:49,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:51:49,140 INFO L471 AbstractCegarLoop]: Abstraction has 9437 states and 12850 transitions. [2024-11-08 18:51:49,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 6 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-08 18:51:49,140 INFO L276 IsEmpty]: Start isEmpty. Operand 9437 states and 12850 transitions. [2024-11-08 18:51:49,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-08 18:51:49,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:51:49,158 INFO L215 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] [2024-11-08 18:51:49,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:51:49,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:51:49,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:51:49,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1606596386, now seen corresponding path program 1 times [2024-11-08 18:51:49,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:51:49,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42062275] [2024-11-08 18:51:49,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:49,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:51:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:51:50,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:51:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:51:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:51:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:51:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:51:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:51:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:51:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:51:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:51:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:51:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:51:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:51:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:51:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:51:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:51:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:51:50,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-08 18:51:50,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:51:50,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2024-11-08 18:51:50,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:51:50,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42062275] [2024-11-08 18:51:50,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42062275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:51:50,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955970303] [2024-11-08 18:51:50,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:51:50,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:51:50,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:51:50,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:51:50,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:51:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:51:51,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:51:51,682 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:51:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-08 18:51:52,066 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:51:52,973 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-08 18:51:52,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955970303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:51:52,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:51:52,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 21 [2024-11-08 18:51:52,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413184856] [2024-11-08 18:51:52,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:51:52,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 18:51:52,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:51:52,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 18:51:52,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:51:52,977 INFO L87 Difference]: Start difference. First operand 9437 states and 12850 transitions. Second operand has 21 states, 21 states have (on average 10.19047619047619) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 10 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-08 18:51:56,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:00,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:04,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:09,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:13,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:17,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:21,015 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:25,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:29,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:33,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:37,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:41,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:45,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:52:49,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:53:02,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:02,054 INFO L93 Difference]: Finished difference Result 33617 states and 46257 transitions. [2024-11-08 18:53:02,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-08 18:53:02,055 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.19047619047619) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 10 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) Word has length 203 [2024-11-08 18:53:02,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:02,170 INFO L225 Difference]: With dead ends: 33617 [2024-11-08 18:53:02,170 INFO L226 Difference]: Without dead ends: 28432 [2024-11-08 18:53:02,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 445 SyntacticMatches, 5 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 934 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=682, Invalid=2510, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 18:53:02,190 INFO L432 NwaCegarLoop]: 1178 mSDtfsCounter, 8977 mSDsluCounter, 9541 mSDsCounter, 0 mSdLazyCounter, 7433 mSolverCounterSat, 3094 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9261 SdHoareTripleChecker+Valid, 10719 SdHoareTripleChecker+Invalid, 10541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3094 IncrementalHoareTripleChecker+Valid, 7433 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:02,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9261 Valid, 10719 Invalid, 10541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3094 Valid, 7433 Invalid, 14 Unknown, 0 Unchecked, 66.2s Time] [2024-11-08 18:53:02,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28432 states. [2024-11-08 18:53:04,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28432 to 26436. [2024-11-08 18:53:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26436 states, 20293 states have (on average 1.3460306509633864) internal successors, (27315), 20789 states have internal predecessors, (27315), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:53:04,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26436 states to 26436 states and 36398 transitions. [2024-11-08 18:53:04,152 INFO L78 Accepts]: Start accepts. Automaton has 26436 states and 36398 transitions. Word has length 203 [2024-11-08 18:53:04,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:04,153 INFO L471 AbstractCegarLoop]: Abstraction has 26436 states and 36398 transitions. [2024-11-08 18:53:04,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.19047619047619) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 10 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2024-11-08 18:53:04,153 INFO L276 IsEmpty]: Start isEmpty. Operand 26436 states and 36398 transitions. [2024-11-08 18:53:04,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-08 18:53:04,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:04,171 INFO L215 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] [2024-11-08 18:53:04,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:53:04,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:53:04,377 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:04,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:04,377 INFO L85 PathProgramCache]: Analyzing trace with hash 18998958, now seen corresponding path program 1 times [2024-11-08 18:53:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:04,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597033834] [2024-11-08 18:53:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:53:04,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:53:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:53:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:04,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:53:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:53:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:53:05,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:53:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:53:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:53:05,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:53:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:53:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:53:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 18:53:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-08 18:53:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-08 18:53:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:53:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 18:53:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:53:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-08 18:53:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:05,186 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-08 18:53:05,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:05,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597033834] [2024-11-08 18:53:05,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597033834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:05,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:05,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:53:05,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947106389] [2024-11-08 18:53:05,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:05,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:53:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:53:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:53:05,189 INFO L87 Difference]: Start difference. First operand 26436 states and 36398 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:53:09,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:53:13,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:53:17,216 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 [] [2024-11-08 18:53:22,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:22,642 INFO L93 Difference]: Finished difference Result 64469 states and 88479 transitions. [2024-11-08 18:53:22,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:53:22,643 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 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 221 [2024-11-08 18:53:22,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:22,834 INFO L225 Difference]: With dead ends: 64469 [2024-11-08 18:53:22,834 INFO L226 Difference]: Without dead ends: 38068 [2024-11-08 18:53:23,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:53:23,003 INFO L432 NwaCegarLoop]: 1213 mSDtfsCounter, 993 mSDsluCounter, 3159 mSDsCounter, 0 mSdLazyCounter, 2484 mSolverCounterSat, 188 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 2484 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:23,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 4372 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 2484 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2024-11-08 18:53:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38068 states. [2024-11-08 18:53:24,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38068 to 26476. [2024-11-08 18:53:24,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26476 states, 20333 states have (on average 1.3453499237692421) internal successors, (27355), 20829 states have internal predecessors, (27355), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:53:24,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26476 states to 26476 states and 36438 transitions. [2024-11-08 18:53:24,865 INFO L78 Accepts]: Start accepts. Automaton has 26476 states and 36438 transitions. Word has length 221 [2024-11-08 18:53:24,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:24,865 INFO L471 AbstractCegarLoop]: Abstraction has 26476 states and 36438 transitions. [2024-11-08 18:53:24,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:53:24,866 INFO L276 IsEmpty]: Start isEmpty. Operand 26476 states and 36438 transitions. [2024-11-08 18:53:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-08 18:53:24,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:24,884 INFO L215 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] [2024-11-08 18:53:24,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:53:24,885 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:24,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:24,885 INFO L85 PathProgramCache]: Analyzing trace with hash 2139630241, now seen corresponding path program 1 times [2024-11-08 18:53:24,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:24,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180123035] [2024-11-08 18:53:24,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:24,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:25,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:53:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:53:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:53:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:53:25,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:53:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:53:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:53:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:53:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:53:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:53:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:53:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:53:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:53:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:53:25,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:53:25,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:25,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:53:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:53:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-08 18:53:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-08 18:53:25,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:25,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180123035] [2024-11-08 18:53:25,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180123035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:25,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:25,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:53:25,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131638156] [2024-11-08 18:53:25,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:25,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:53:25,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:25,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:53:25,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:53:25,682 INFO L87 Difference]: Start difference. First operand 26476 states and 36438 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:53:29,693 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 [] [2024-11-08 18:53:33,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:53:37,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:53:41,710 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 [] [2024-11-08 18:53:45,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:53:45,997 INFO L93 Difference]: Finished difference Result 50078 states and 69643 transitions. [2024-11-08 18:53:45,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:53:45,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 6 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 205 [2024-11-08 18:53:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:53:46,116 INFO L225 Difference]: With dead ends: 50078 [2024-11-08 18:53:46,116 INFO L226 Difference]: Without dead ends: 27854 [2024-11-08 18:53:46,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:53:46,176 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 770 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 1647 mSolverCounterSat, 476 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 1647 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:53:46,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 3184 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 1647 Invalid, 4 Unknown, 0 Unchecked, 18.6s Time] [2024-11-08 18:53:46,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27854 states. [2024-11-08 18:53:48,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27854 to 26460. [2024-11-08 18:53:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26460 states, 20317 states have (on average 1.343357779199685) internal successors, (27293), 20813 states have internal predecessors, (27293), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:53:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26460 states to 26460 states and 36376 transitions. [2024-11-08 18:53:48,417 INFO L78 Accepts]: Start accepts. Automaton has 26460 states and 36376 transitions. Word has length 205 [2024-11-08 18:53:48,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:53:48,418 INFO L471 AbstractCegarLoop]: Abstraction has 26460 states and 36376 transitions. [2024-11-08 18:53:48,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 6 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:53:48,418 INFO L276 IsEmpty]: Start isEmpty. Operand 26460 states and 36376 transitions. [2024-11-08 18:53:48,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-08 18:53:48,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:53:48,564 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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] [2024-11-08 18:53:48,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:53:48,565 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:53:48,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:53:48,565 INFO L85 PathProgramCache]: Analyzing trace with hash 2050378362, now seen corresponding path program 1 times [2024-11-08 18:53:48,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:53:48,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949853841] [2024-11-08 18:53:48,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:53:48,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:53:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:53:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:53:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:53:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:53:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:53:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:53:49,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:53:49,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:53:49,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:53:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:53:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:53:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:53:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:53:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:53:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:53:49,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:49,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:53:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:53:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 18:53:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:53:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:53:49,516 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-08 18:53:49,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:53:49,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949853841] [2024-11-08 18:53:49,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949853841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:53:49,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:53:49,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:53:49,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290746541] [2024-11-08 18:53:49,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:53:49,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:53:49,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:53:49,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:53:49,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:53:49,520 INFO L87 Difference]: Start difference. First operand 26460 states and 36376 transitions. Second operand has 8 states, 8 states have (on average 14.375) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:53:53,532 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 [] [2024-11-08 18:53:57,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:01,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:05,546 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 [] [2024-11-08 18:54:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:09,575 INFO L93 Difference]: Finished difference Result 54323 states and 74682 transitions. [2024-11-08 18:54:09,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:54:09,576 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 6 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 207 [2024-11-08 18:54:09,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:09,709 INFO L225 Difference]: With dead ends: 54323 [2024-11-08 18:54:09,709 INFO L226 Difference]: Without dead ends: 27898 [2024-11-08 18:54:09,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:54:09,769 INFO L432 NwaCegarLoop]: 661 mSDtfsCounter, 570 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 325 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 1975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:09,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 2788 Invalid, 1975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1646 Invalid, 4 Unknown, 0 Unchecked, 18.3s Time] [2024-11-08 18:54:09,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27898 states. [2024-11-08 18:54:11,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27898 to 26520. [2024-11-08 18:54:11,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 20377 states have (on average 1.3423467635078765) internal successors, (27353), 20873 states have internal predecessors, (27353), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:54:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 36436 transitions. [2024-11-08 18:54:11,568 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 36436 transitions. Word has length 207 [2024-11-08 18:54:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:11,569 INFO L471 AbstractCegarLoop]: Abstraction has 26520 states and 36436 transitions. [2024-11-08 18:54:11,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.375) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:54:11,570 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 36436 transitions. [2024-11-08 18:54:11,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-08 18:54:11,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:11,588 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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] [2024-11-08 18:54:11,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:54:11,589 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:11,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:11,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1077365192, now seen corresponding path program 1 times [2024-11-08 18:54:11,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:11,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715180012] [2024-11-08 18:54:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:12,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:54:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:54:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:54:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:54:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:54:13,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:13,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:54:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:54:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:54:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:54:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:54:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:54:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:54:13,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 18:54:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 18:54:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-08 18:54:13,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:13,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715180012] [2024-11-08 18:54:13,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715180012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:13,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:13,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:54:13,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626200060] [2024-11-08 18:54:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:13,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:54:13,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:13,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:54:13,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:54:13,287 INFO L87 Difference]: Start difference. First operand 26520 states and 36436 transitions. Second operand has 12 states, 12 states have (on average 9.75) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 18:54:17,300 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 [] [2024-11-08 18:54:21,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:25,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:29,312 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 [] [2024-11-08 18:54:34,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:34,857 INFO L93 Difference]: Finished difference Result 54593 states and 74952 transitions. [2024-11-08 18:54:34,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 18:54:34,858 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 6 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 211 [2024-11-08 18:54:34,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:35,110 INFO L225 Difference]: With dead ends: 54593 [2024-11-08 18:54:35,110 INFO L226 Difference]: Without dead ends: 28108 [2024-11-08 18:54:35,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:54:35,170 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 553 mSDsluCounter, 4772 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 323 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 5426 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:35,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 5426 Invalid, 3629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [323 Valid, 3302 Invalid, 4 Unknown, 0 Unchecked, 19.9s Time] [2024-11-08 18:54:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28108 states. [2024-11-08 18:54:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28108 to 26700. [2024-11-08 18:54:36,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26700 states, 20557 states have (on average 1.3393491268181155) internal successors, (27533), 21053 states have internal predecessors, (27533), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:54:36,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26700 states to 26700 states and 36616 transitions. [2024-11-08 18:54:36,952 INFO L78 Accepts]: Start accepts. Automaton has 26700 states and 36616 transitions. Word has length 211 [2024-11-08 18:54:36,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:54:36,953 INFO L471 AbstractCegarLoop]: Abstraction has 26700 states and 36616 transitions. [2024-11-08 18:54:36,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.75) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 18:54:36,953 INFO L276 IsEmpty]: Start isEmpty. Operand 26700 states and 36616 transitions. [2024-11-08 18:54:36,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-08 18:54:36,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:54:36,967 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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] [2024-11-08 18:54:36,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:54:36,967 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:54:36,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:54:36,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1848098758, now seen corresponding path program 1 times [2024-11-08 18:54:36,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:54:36,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393533248] [2024-11-08 18:54:36,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:54:36,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:54:37,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:54:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:54:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:54:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:54:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:54:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:54:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:54:37,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:54:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:54:37,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:54:37,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:54:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:54:37,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:54:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:54:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:54:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:54:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:54:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:37,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 18:54:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 18:54:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:54:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:54:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2024-11-08 18:54:37,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:54:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393533248] [2024-11-08 18:54:37,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393533248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:54:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:54:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:54:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154506682] [2024-11-08 18:54:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:54:37,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:54:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:54:37,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:54:37,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:54:37,618 INFO L87 Difference]: Start difference. First operand 26700 states and 36616 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 18:54:41,632 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 [] [2024-11-08 18:54:45,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:49,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:54:53,645 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 [] [2024-11-08 18:54:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:54:57,991 INFO L93 Difference]: Finished difference Result 54833 states and 75192 transitions. [2024-11-08 18:54:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:54:57,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 6 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 211 [2024-11-08 18:54:57,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:54:58,134 INFO L225 Difference]: With dead ends: 54833 [2024-11-08 18:54:58,134 INFO L226 Difference]: Without dead ends: 28168 [2024-11-08 18:54:58,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:54:58,190 INFO L432 NwaCegarLoop]: 658 mSDtfsCounter, 338 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 162 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 3559 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:54:58,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 3559 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1961 Invalid, 4 Unknown, 0 Unchecked, 18.5s Time] [2024-11-08 18:54:58,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28168 states. [2024-11-08 18:55:00,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28168 to 26760. [2024-11-08 18:55:00,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26760 states, 20617 states have (on average 1.3383615462967453) internal successors, (27593), 21113 states have internal predecessors, (27593), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2151 states have return successors, (5092), 4000 states have call predecessors, (5092), 3990 states have call successors, (5092) [2024-11-08 18:55:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26760 states to 26760 states and 36676 transitions. [2024-11-08 18:55:00,301 INFO L78 Accepts]: Start accepts. Automaton has 26760 states and 36676 transitions. Word has length 211 [2024-11-08 18:55:00,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:00,301 INFO L471 AbstractCegarLoop]: Abstraction has 26760 states and 36676 transitions. [2024-11-08 18:55:00,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-08 18:55:00,302 INFO L276 IsEmpty]: Start isEmpty. Operand 26760 states and 36676 transitions. [2024-11-08 18:55:00,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-08 18:55:00,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:00,314 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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] [2024-11-08 18:55:00,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:55:00,314 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:00,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:00,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1860592316, now seen corresponding path program 1 times [2024-11-08 18:55:00,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:00,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564533905] [2024-11-08 18:55:00,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:00,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:55:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:55:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:55:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:55:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:55:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:55:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:55:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:55:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:55:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:55:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:55:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:55:03,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:55:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:55:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 18:55:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2024-11-08 18:55:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-08 18:55:03,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:03,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564533905] [2024-11-08 18:55:03,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564533905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:03,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:03,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-08 18:55:03,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804513665] [2024-11-08 18:55:03,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:03,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 18:55:03,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 18:55:03,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:55:03,988 INFO L87 Difference]: Start difference. First operand 26760 states and 36676 transitions. Second operand has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 11 states have internal predecessors, (118), 3 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-08 18:55:07,999 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 [] [2024-11-08 18:55:12,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:55:16,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:55:20,010 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 [] [2024-11-08 18:55:28,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:28,450 INFO L93 Difference]: Finished difference Result 55193 states and 75854 transitions. [2024-11-08 18:55:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:55:28,450 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 11 states have internal predecessors, (118), 3 states have call successors, (24), 6 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 211 [2024-11-08 18:55:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:28,575 INFO L225 Difference]: With dead ends: 55193 [2024-11-08 18:55:28,575 INFO L226 Difference]: Without dead ends: 28468 [2024-11-08 18:55:28,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:55:28,630 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 561 mSDsluCounter, 8490 mSDsCounter, 0 mSdLazyCounter, 5953 mSolverCounterSat, 322 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 6279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 5953 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:28,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 9182 Invalid, 6279 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [322 Valid, 5953 Invalid, 4 Unknown, 0 Unchecked, 22.2s Time] [2024-11-08 18:55:28,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28468 states. [2024-11-08 18:55:30,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28468 to 26940. [2024-11-08 18:55:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26940 states, 20749 states have (on average 1.334281170176876) internal successors, (27685), 21239 states have internal predecessors, (27685), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2199 states have return successors, (5156), 4054 states have call predecessors, (5156), 3990 states have call successors, (5156) [2024-11-08 18:55:30,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26940 states to 26940 states and 36832 transitions. [2024-11-08 18:55:30,338 INFO L78 Accepts]: Start accepts. Automaton has 26940 states and 36832 transitions. Word has length 211 [2024-11-08 18:55:30,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:30,338 INFO L471 AbstractCegarLoop]: Abstraction has 26940 states and 36832 transitions. [2024-11-08 18:55:30,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 11 states have internal predecessors, (118), 3 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-08 18:55:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 26940 states and 36832 transitions. [2024-11-08 18:55:30,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-08 18:55:30,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:30,350 INFO L215 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, 1] [2024-11-08 18:55:30,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:55:30,350 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:30,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:30,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1781748122, now seen corresponding path program 1 times [2024-11-08 18:55:30,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:30,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272902027] [2024-11-08 18:55:30,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:30,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:55:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:55:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:55:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:55:30,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:55:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:55:30,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:55:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:55:30,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:55:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-08 18:55:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-08 18:55:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:30,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:55:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 18:55:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 18:55:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-08 18:55:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:55:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-11-08 18:55:31,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:31,133 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-11-08 18:55:31,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:31,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272902027] [2024-11-08 18:55:31,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272902027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:55:31,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426871628] [2024-11-08 18:55:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:31,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:55:31,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:55:31,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:55:31,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:55:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:32,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 1761 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:55:32,271 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:55:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-08 18:55:32,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:55:32,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426871628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:32,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:55:32,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-11-08 18:55:32,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475184085] [2024-11-08 18:55:32,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:32,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:55:32,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:32,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:55:32,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:55:32,345 INFO L87 Difference]: Start difference. First operand 26940 states and 36832 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-08 18:55:36,358 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 [] [2024-11-08 18:55:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:55:38,436 INFO L93 Difference]: Finished difference Result 63925 states and 87116 transitions. [2024-11-08 18:55:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:55:38,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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 234 [2024-11-08 18:55:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:55:38,592 INFO L225 Difference]: With dead ends: 63925 [2024-11-08 18:55:38,592 INFO L226 Difference]: Without dead ends: 37020 [2024-11-08 18:55:38,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:55:38,643 INFO L432 NwaCegarLoop]: 1721 mSDtfsCounter, 782 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 6065 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:55:38,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 6065 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 18:55:38,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37020 states. [2024-11-08 18:55:40,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37020 to 26960. [2024-11-08 18:55:40,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26960 states, 20769 states have (on average 1.3339592662140691) internal successors, (27705), 21239 states have internal predecessors, (27705), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2199 states have return successors, (5156), 4054 states have call predecessors, (5156), 3990 states have call successors, (5156) [2024-11-08 18:55:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26960 states to 26960 states and 36852 transitions. [2024-11-08 18:55:40,399 INFO L78 Accepts]: Start accepts. Automaton has 26960 states and 36852 transitions. Word has length 234 [2024-11-08 18:55:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:55:40,399 INFO L471 AbstractCegarLoop]: Abstraction has 26960 states and 36852 transitions. [2024-11-08 18:55:40,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 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) [2024-11-08 18:55:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 26960 states and 36852 transitions. [2024-11-08 18:55:40,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-08 18:55:40,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:55:40,407 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:55:40,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:55:40,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 18:55:40,608 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:55:40,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:55:40,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1419915749, now seen corresponding path program 1 times [2024-11-08 18:55:40,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:55:40,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164038536] [2024-11-08 18:55:40,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:55:40,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:55:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:55:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:55:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:55:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 18:55:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:55:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:55:43,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:55:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 18:55:43,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-08 18:55:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 18:55:43,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:55:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 18:55:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-08 18:55:43,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-08 18:55:43,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 18:55:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:43,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 18:55:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:55:43,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-08 18:55:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-08 18:55:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-11-08 18:55:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:43,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-08 18:55:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:44,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:44,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-11-08 18:55:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:44,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:55:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:55:44,025 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-08 18:55:44,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:55:44,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164038536] [2024-11-08 18:55:44,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164038536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:55:44,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:55:44,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-08 18:55:44,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341238021] [2024-11-08 18:55:44,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:55:44,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 18:55:44,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:55:44,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 18:55:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:55:44,029 INFO L87 Difference]: Start difference. First operand 26960 states and 36852 transitions. Second operand has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-08 18:55:48,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:55:52,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:55:56,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:56:00,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:56:04,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:56:08,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:56:15,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:15,855 INFO L93 Difference]: Finished difference Result 55703 states and 76198 transitions. [2024-11-08 18:56:15,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 18:56:15,856 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (28), 8 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 240 [2024-11-08 18:56:15,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:16,145 INFO L225 Difference]: With dead ends: 55703 [2024-11-08 18:56:16,145 INFO L226 Difference]: Without dead ends: 28778 [2024-11-08 18:56:16,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=167, Invalid=1239, Unknown=0, NotChecked=0, Total=1406 [2024-11-08 18:56:16,193 INFO L432 NwaCegarLoop]: 640 mSDtfsCounter, 1372 mSDsluCounter, 8317 mSDsCounter, 0 mSdLazyCounter, 6419 mSolverCounterSat, 839 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 8957 SdHoareTripleChecker+Invalid, 7264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 839 IncrementalHoareTripleChecker+Valid, 6419 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:16,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 8957 Invalid, 7264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [839 Valid, 6419 Invalid, 6 Unknown, 0 Unchecked, 29.5s Time] [2024-11-08 18:56:16,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28778 states. [2024-11-08 18:56:17,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28778 to 27120. [2024-11-08 18:56:18,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27120 states, 20883 states have (on average 1.3321361873294066) internal successors, (27819), 21353 states have internal predecessors, (27819), 4021 states have call successors, (4021), 1900 states have call predecessors, (4021), 2215 states have return successors, (5206), 4092 states have call predecessors, (5206), 4020 states have call successors, (5206) [2024-11-08 18:56:18,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27120 states to 27120 states and 37046 transitions. [2024-11-08 18:56:18,098 INFO L78 Accepts]: Start accepts. Automaton has 27120 states and 37046 transitions. Word has length 240 [2024-11-08 18:56:18,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:18,099 INFO L471 AbstractCegarLoop]: Abstraction has 27120 states and 37046 transitions. [2024-11-08 18:56:18,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.619047619047619) internal successors, (139), 12 states have internal predecessors, (139), 5 states have call successors, (28), 8 states have call predecessors, (28), 4 states have return successors, (27), 8 states have call predecessors, (27), 5 states have call successors, (27) [2024-11-08 18:56:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 27120 states and 37046 transitions. [2024-11-08 18:56:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2024-11-08 18:56:18,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:18,107 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:18,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:56:18,107 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:18,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:18,107 INFO L85 PathProgramCache]: Analyzing trace with hash -473483488, now seen corresponding path program 1 times [2024-11-08 18:56:18,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:56:18,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043736395] [2024-11-08 18:56:18,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:18,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:56:18,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:56:18,813 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:56:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:56:19,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:56:19,904 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:56:19,905 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:56:19,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:56:19,912 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:20,177 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:56:20,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:56:20 BoogieIcfgContainer [2024-11-08 18:56:20,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:56:20,182 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:56:20,182 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:56:20,182 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:56:20,183 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:10" (3/4) ... [2024-11-08 18:56:20,185 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:56:20,186 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:56:20,187 INFO L158 Benchmark]: Toolchain (without parser) took 439865.75ms. Allocated memory was 157.3MB in the beginning and 3.0GB in the end (delta: 2.9GB). Free memory was 119.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB. [2024-11-08 18:56:20,187 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 92.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:56:20,188 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2012.53ms. Allocated memory was 157.3MB in the beginning and 218.1MB in the end (delta: 60.8MB). Free memory was 119.8MB in the beginning and 143.4MB in the end (delta: -23.5MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. [2024-11-08 18:56:20,189 INFO L158 Benchmark]: Boogie Procedure Inliner took 169.40ms. Allocated memory is still 218.1MB. Free memory was 143.4MB in the beginning and 131.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-08 18:56:20,189 INFO L158 Benchmark]: Boogie Preprocessor took 470.61ms. Allocated memory is still 218.1MB. Free memory was 130.9MB in the beginning and 135.4MB in the end (delta: -4.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-08 18:56:20,189 INFO L158 Benchmark]: RCFGBuilder took 7059.17ms. Allocated memory is still 218.1MB. Free memory was 135.4MB in the beginning and 77.8MB in the end (delta: 57.6MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. [2024-11-08 18:56:20,189 INFO L158 Benchmark]: TraceAbstraction took 430138.23ms. Allocated memory was 218.1MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 76.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2024-11-08 18:56:20,190 INFO L158 Benchmark]: Witness Printer took 4.96ms. Allocated memory is still 3.0GB. Free memory is still 1.6GB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:56:20,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory was 92.4MB in the beginning and 92.3MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2012.53ms. Allocated memory was 157.3MB in the beginning and 218.1MB in the end (delta: 60.8MB). Free memory was 119.8MB in the beginning and 143.4MB in the end (delta: -23.5MB). Peak memory consumption was 81.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 169.40ms. Allocated memory is still 218.1MB. Free memory was 143.4MB in the beginning and 131.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 470.61ms. Allocated memory is still 218.1MB. Free memory was 130.9MB in the beginning and 135.4MB in the end (delta: -4.5MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * RCFGBuilder took 7059.17ms. Allocated memory is still 218.1MB. Free memory was 135.4MB in the beginning and 77.8MB in the end (delta: 57.6MB). Peak memory consumption was 81.7MB. Max. memory is 16.1GB. * TraceAbstraction took 430138.23ms. Allocated memory was 218.1MB in the beginning and 3.0GB in the end (delta: 2.8GB). Free memory was 76.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 4.96ms. Allocated memory is still 3.0GB. Free memory is still 1.6GB. There was no memory consumed. 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 - UnprovableResult [Line: 5666]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of large string literal at line 5775. Possible 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934608, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934608, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg1=8589934625, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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)={8589934597:27}, \old(last_index)=0, __this_module={8589934640:8589934621}, ap={8589934597:27}, 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={8589934647:8589934646}, 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={8589934640:8589934621}, 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)={8589934597:47}, \result=0, __this_module={8589934640:8589934621}, 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)={8589934597:27}, \old(last_index)=0, __this_module={8589934640:8589934621}, ap={8589934597:27}, 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={8589934647:8589934646}, 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)={8589934597:27}, \old(last_index)=0, \result=0, __this_module={8589934640:8589934621}, ap={8589934597:27}, 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={8589934647:8589934646}, tty_stuffed=0] [L6443] RET ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934640:8589934621}, ap={8589934597:27}, 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)={8589934597:183}, \old(nr)=1, __this_module={8589934640:8589934621}, 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)={8589934597:183}, \old(nr)=1, \result=0, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, data={29:31}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, data={29:31}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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={8589934640:8589934621}, ap={8589934597:27}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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) 1 << 64) | 1):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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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) 1 << 64) | 1):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) 1 << 64) | 1):0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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) 1 << 64) | 1):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={8589934640:8589934621}, disc_data_lock={22:0}, e={-(((__int128) 1 << 64) | 1):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}] [L7029] COND TRUE 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(last_index)=0, __this_module={8589934640:8589934621}, disc_data_lock={22:0}, e={-(((__int128) 1 << 64) | 1):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={8589934640:8589934621}, disc_data_lock={22:0}, e={-(((__int128) 1 << 64) | 1):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={8589934640:8589934621}, 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) 1 << 64) | 1):0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, 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) 1 << 64) | 1):0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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) 1 << 64) | 1):0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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={8589934640:8589934621}, 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) 1 << 64) | 1):0}, \old(arg1)=4294967296, __this_module={8589934640:8589934621}, 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) 1 << 64) | 1):0}, \old(arg1)=4294967296, \result={-(((__int128) 1 << 64) | 1):234}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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}] [L7056] COND TRUE 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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}] [L7056] COND TRUE 1 VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, \old(e)={0:0}, \old(last_index)=1, \old(set)={0:0}, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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) 1 << 64) | 1):0}, \old(arg1)=2, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, 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={8589934640:8589934621}, 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) 1 << 64) | 1):0}, \old(arg1)=2, __this_module={8589934640:8589934621}, 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={8589934640:8589934621}, ap={8589934597:27}, 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) 1 << 64) | 1):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={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, jiffies=8589934632, 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) 1 << 64) | 1):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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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) 1 << 64) | 1):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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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) 1 << 64) | 1):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) 1 << 64) | 1):0}, __this_module={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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)={8589934597:27}, \old(last_index)=1, __this_module={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, done=0, jiffies=8589934632, 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={8589934647:8589934633}, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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)={8589934597:47}, \result=0, __this_module={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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)={8589934597:27}, \old(last_index)=1, __this_module={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, done=0, jiffies=8589934632, 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={8589934647:8589934633}, 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)={8589934597:27}, \old(last_index)=1, \result=0, __this_module={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, done=0, jiffies=8589934632, 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={8589934647:8589934633}, tty_stuffed=0] [L6455] RET ppp_sync_push(ap) VAL [LDV_IN_INTERRUPT=1, LDV_SKBS={0:0}, __this_module={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, ap={8589934597:27}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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=8589934602, ldvarg10={0:0}, ldvarg11=8589934608, ldvarg12={0:0}, ldvarg13={0:0}, ldvarg14=8589934630, ldvarg15=8589934605, ldvarg16={0:0}, ldvarg1=8589934625, ldvarg2={0:0}, ldvarg3=0, ldvarg4={0:0}, ldvarg5={0:0}, ldvarg6={0:0}, ldvarg7={0:0}, ldvarg8=8589934596, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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={8589934640:8589934621}, disc_data_lock={22:0}, jiffies=8589934632, 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, 739 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 429.8s, OverallIterations: 18, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 381.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 73 mSolverCounterUnknown, 27883 SdHoareTripleChecker+Valid, 355.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26715 mSDsluCounter, 78621 SdHoareTripleChecker+Invalid, 347.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64892 mSDsCounter, 10035 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45795 IncrementalHoareTripleChecker+Invalid, 55903 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10035 mSolverCounterUnsat, 13729 mSDtfsCounter, 45795 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1591 GetRequests, 1334 SyntacticMatches, 5 SemanticMatches, 252 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1435 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27120occurred in iteration=17, InterpolantAutomatonStates: 241, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 39168 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 3720 NumberOfCodeBlocks, 3720 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 3661 ConstructedInterpolants, 0 QuantifiedInterpolants, 8660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3390 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 6038/6075 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 18:56:20,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563 [2024-11-08 18:56:23,022 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:56:23,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-08 18:56:23,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:56:23,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:56:23,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:56:23,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:56:23,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:56:23,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:56:23,200 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:56:23,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:56:23,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:56:23,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:56:23,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:56:23,204 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:56:23,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:56:23,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:56:23,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:56:23,206 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:56:23,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:56:23,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:56:23,207 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:56:23,211 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:56:23,211 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:56:23,212 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:56:23,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:56:23,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:56:23,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:56:23,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:56:23,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:56:23,214 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:56:23,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:23,214 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:56:23,215 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:56:23,215 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:56:23,215 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:56:23,216 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:56:23,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:56:23,227 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:56:23,227 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:56:23,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:56:23,228 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2024-11-08 18:56:23,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:56:23,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:56:23,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:56:23,750 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:56:23,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:56:23,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/../../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 Unable to find full path for "g++" [2024-11-08 18:56:25,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:56:26,608 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:56:26,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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 [2024-11-08 18:56:26,673 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/bb4a2a0a5/2d79e21ce10e4253af809cb08c95ee22/FLAG785be2d06 [2024-11-08 18:56:26,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/data/bb4a2a0a5/2d79e21ce10e4253af809cb08c95ee22 [2024-11-08 18:56:26,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:56:26,710 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:56:26,712 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:26,712 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:56:26,722 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:56:26,723 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:26" (1/1) ... [2024-11-08 18:56:26,724 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@319e46da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:26, skipping insertion in model container [2024-11-08 18:56:26,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:56:26" (1/1) ... [2024-11-08 18:56:26,935 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:56:28,119 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,166 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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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] [2024-11-08 18:56:28,253 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,292 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,298 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,311 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,322 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,328 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,420 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,420 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,429 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,430 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,431 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,435 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,436 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,437 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,438 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,451 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,458 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,463 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,496 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,496 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,518 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,519 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,526 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,527 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,528 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,529 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,530 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,533 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,534 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,535 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,536 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,645 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,687 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:56:28,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:28,734 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:56:28,948 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] [2024-11-08 18:56:28,951 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] [2024-11-08 18:56:28,952 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] [2024-11-08 18:56:28,953 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] [2024-11-08 18:56:28,961 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] [2024-11-08 18:56:28,961 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] [2024-11-08 18:56:28,998 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_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/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] [2024-11-08 18:56:29,042 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] [2024-11-08 18:56:29,042 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] [2024-11-08 18:56:29,044 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] [2024-11-08 18:56:29,045 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] [2024-11-08 18:56:29,045 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] [2024-11-08 18:56:29,046 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] [2024-11-08 18:56:29,047 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] [2024-11-08 18:56:29,048 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] [2024-11-08 18:56:29,048 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] [2024-11-08 18:56:29,049 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] [2024-11-08 18:56:29,050 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] [2024-11-08 18:56:29,053 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] [2024-11-08 18:56:29,053 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] [2024-11-08 18:56:29,054 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] [2024-11-08 18:56:29,054 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] [2024-11-08 18:56:29,063 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] [2024-11-08 18:56:29,064 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] [2024-11-08 18:56:29,064 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] [2024-11-08 18:56:29,065 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] [2024-11-08 18:56:29,065 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] [2024-11-08 18:56:29,066 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] [2024-11-08 18:56:29,068 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] [2024-11-08 18:56:29,069 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] [2024-11-08 18:56:29,069 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] [2024-11-08 18:56:29,070 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] [2024-11-08 18:56:29,070 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] [2024-11-08 18:56:29,071 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] [2024-11-08 18:56:29,072 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] [2024-11-08 18:56:29,073 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] [2024-11-08 18:56:29,074 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] [2024-11-08 18:56:29,074 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] [2024-11-08 18:56:29,075 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] [2024-11-08 18:56:29,075 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] [2024-11-08 18:56:29,081 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] [2024-11-08 18:56:29,083 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] [2024-11-08 18:56:29,084 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] [2024-11-08 18:56:29,085 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] [2024-11-08 18:56:29,085 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] [2024-11-08 18:56:29,086 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] [2024-11-08 18:56:29,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:56:29,355 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:56:29,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29 WrapperNode [2024-11-08 18:56:29,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:56:29,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:29,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:56:29,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:56:29,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:29,467 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:29,644 INFO L138 Inliner]: procedures = 188, calls = 475, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1835 [2024-11-08 18:56:29,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:56:29,646 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:56:29,646 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:56:29,646 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:56:29,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:29,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:29,688 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,003 INFO L175 MemorySlicer]: Split 190 memory accesses to 9 slices as follows [2, 7, 20, 1, 13, 24, 120, 2, 1]. 63 percent of accesses are in the largest equivalence class. The 31 initializations are split as follows [2, 0, 15, 1, 0, 0, 10, 2, 1]. The 86 writes are split as follows [0, 6, 2, 0, 13, 24, 41, 0, 0]. [2024-11-08 18:56:30,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:56:30,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:56:30,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:56:30,141 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:56:30,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (1/1) ... [2024-11-08 18:56:30,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:56:30,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:30,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:56:30,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:56:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-08 18:56:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-08 18:56:30,220 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2024-11-08 18:56:30,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2024-11-08 18:56:30,221 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2024-11-08 18:56:30,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2024-11-08 18:56:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-08 18:56:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-08 18:56:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-08 18:56:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2024-11-08 18:56:30,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#5 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#6 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#7 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#8 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#0 [2024-11-08 18:56:30,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#1 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#2 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#3 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#4 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#5 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#6 [2024-11-08 18:56:30,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#7 [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8#8 [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-08 18:56:30,226 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:56:30,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:56:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:56:30,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 18:56:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 18:56:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 18:56:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 18:56:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-08 18:56:30,228 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-08 18:56:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-08 18:56:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-08 18:56:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-08 18:56:30,229 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-08 18:56:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-08 18:56:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-08 18:56:30,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#2 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#3 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#4 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#5 [2024-11-08 18:56:30,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#6 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#7 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#8 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-08 18:56:30,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-08 18:56:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-08 18:56:30,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-08 18:56:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-08 18:56:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-08 18:56:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-08 18:56:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-08 18:56:30,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-08 18:56:30,234 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2024-11-08 18:56:30,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2024-11-08 18:56:30,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:56:30,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:56:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-08 18:56:30,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-08 18:56:30,237 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-08 18:56:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-08 18:56:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-08 18:56:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-08 18:56:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2024-11-08 18:56:30,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2024-11-08 18:56:30,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-08 18:56:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-08 18:56:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2024-11-08 18:56:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2024-11-08 18:56:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-08 18:56:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-08 18:56:30,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-11-08 18:56:30,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-11-08 18:56:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-08 18:56:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-08 18:56:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2024-11-08 18:56:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2024-11-08 18:56:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-08 18:56:30,241 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-08 18:56:30,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-08 18:56:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-08 18:56:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-08 18:56:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-08 18:56:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2024-11-08 18:56:30,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2024-11-08 18:56:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-08 18:56:30,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#2 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#3 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#4 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#5 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#6 [2024-11-08 18:56:30,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#7 [2024-11-08 18:56:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#8 [2024-11-08 18:56:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-08 18:56:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-08 18:56:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#2 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#3 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#4 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#5 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#6 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#7 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#8 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2024-11-08 18:56:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#3 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#4 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#5 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#6 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#7 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#8 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#0 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#1 [2024-11-08 18:56:30,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#2 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#3 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#4 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#5 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#6 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#7 [2024-11-08 18:56:30,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8#8 [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-08 18:56:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-08 18:56:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2024-11-08 18:56:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 18:56:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:56:30,251 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-08 18:56:30,251 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-08 18:56:30,252 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-08 18:56:30,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#0 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#1 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#2 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#3 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#4 [2024-11-08 18:56:30,253 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#5 [2024-11-08 18:56:30,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#6 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#7 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8#8 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#0 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#1 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#2 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#3 [2024-11-08 18:56:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#4 [2024-11-08 18:56:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#5 [2024-11-08 18:56:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#6 [2024-11-08 18:56:30,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#7 [2024-11-08 18:56:30,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2#8 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#0 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#1 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#2 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#3 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#4 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#5 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#6 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#7 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4#8 [2024-11-08 18:56:30,263 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-08 18:56:30,263 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-08 18:56:30,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 18:56:30,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2024-11-08 18:56:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2024-11-08 18:56:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2024-11-08 18:56:30,265 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#0 [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#1 [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#2 [2024-11-08 18:56:30,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#3 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#4 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#5 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#6 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#7 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8#8 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#2 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#3 [2024-11-08 18:56:30,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#4 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#5 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#6 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#7 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#8 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 18:56:30,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 18:56:30,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 18:56:30,273 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2024-11-08 18:56:30,273 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2024-11-08 18:56:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-08 18:56:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-08 18:56:30,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:56:30,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 18:56:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-08 18:56:30,275 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2024-11-08 18:56:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-08 18:56:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#0 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#1 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#2 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#3 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#4 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#5 [2024-11-08 18:56:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#6 [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#7 [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1#8 [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2024-11-08 18:56:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-08 18:56:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-08 18:56:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:56:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:56:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2024-11-08 18:56:30,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2024-11-08 18:56:30,954 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:56:30,958 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:56:31,026 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-08 18:56:43,469 INFO L? ?]: Removed 1096 outVars from TransFormulas that were not future-live. [2024-11-08 18:56:43,470 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:56:43,513 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:56:43,514 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 18:56:43,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:43 BoogieIcfgContainer [2024-11-08 18:56:43,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:56:43,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:56:43,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:56:43,522 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:56:43,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:56:26" (1/3) ... [2024-11-08 18:56:43,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419c6904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:43, skipping insertion in model container [2024-11-08 18:56:43,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:56:29" (2/3) ... [2024-11-08 18:56:43,524 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419c6904 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:56:43, skipping insertion in model container [2024-11-08 18:56:43,524 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:56:43" (3/3) ... [2024-11-08 18:56:43,526 INFO L112 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 [2024-11-08 18:56:43,548 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:56:43,548 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:56:43,669 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:56:43,677 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;@2b900237, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:56:43,677 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:56:43,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 657 states, 491 states have (on average 1.384928716904277) internal successors, (680), 506 states have internal predecessors, (680), 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) [2024-11-08 18:56:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-08 18:56:43,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:43,702 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:43,703 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:43,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:43,710 INFO L85 PathProgramCache]: Analyzing trace with hash -586661050, now seen corresponding path program 1 times [2024-11-08 18:56:43,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:43,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [763729263] [2024-11-08 18:56:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:43,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:43,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:43,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:43,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:56:44,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:44,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:56:44,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:44,922 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:56:44,922 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:44,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:44,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763729263] [2024-11-08 18:56:44,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763729263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:44,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:44,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:56:44,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33754215] [2024-11-08 18:56:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:44,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:56:44,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:44,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:56:44,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:44,972 INFO L87 Difference]: Start difference. First operand has 657 states, 491 states have (on average 1.384928716904277) internal successors, (680), 506 states have internal predecessors, (680), 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) [2024-11-08 18:56:49,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:56:49,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:49,344 INFO L93 Difference]: Finished difference Result 1912 states and 2766 transitions. [2024-11-08 18:56:49,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:56:49,352 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 [2024-11-08 18:56:49,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:49,390 INFO L225 Difference]: With dead ends: 1912 [2024-11-08 18:56:49,392 INFO L226 Difference]: Without dead ends: 1244 [2024-11-08 18:56:49,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:49,410 INFO L432 NwaCegarLoop]: 928 mSDtfsCounter, 846 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:49,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1822 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 18:56:49,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2024-11-08 18:56:49,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1244. [2024-11-08 18:56:49,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1244 states, 940 states have (on average 1.3680851063829786) internal successors, (1286), 958 states have internal predecessors, (1286), 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) [2024-11-08 18:56:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1244 states to 1244 states and 1735 transitions. [2024-11-08 18:56:49,631 INFO L78 Accepts]: Start accepts. Automaton has 1244 states and 1735 transitions. Word has length 78 [2024-11-08 18:56:49,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:49,632 INFO L471 AbstractCegarLoop]: Abstraction has 1244 states and 1735 transitions. [2024-11-08 18:56:49,632 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) [2024-11-08 18:56:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1244 states and 1735 transitions. [2024-11-08 18:56:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-08 18:56:49,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:49,638 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:49,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:56:49,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:49,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:49,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:49,844 INFO L85 PathProgramCache]: Analyzing trace with hash -58648312, now seen corresponding path program 1 times [2024-11-08 18:56:49,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:49,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278835031] [2024-11-08 18:56:49,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:49,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:49,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:49,849 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:49,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:56:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:50,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:56:50,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:56:51,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:51,078 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:51,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278835031] [2024-11-08 18:56:51,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278835031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:51,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:51,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:51,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937577860] [2024-11-08 18:56:51,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:51,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:56:51,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:51,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:56:51,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:56:51,083 INFO L87 Difference]: Start difference. First operand 1244 states and 1735 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) [2024-11-08 18:56:51,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:51,626 INFO L93 Difference]: Finished difference Result 2473 states and 3445 transitions. [2024-11-08 18:56:51,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:56:51,627 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 [2024-11-08 18:56:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:51,642 INFO L225 Difference]: With dead ends: 2473 [2024-11-08 18:56:51,642 INFO L226 Difference]: Without dead ends: 1253 [2024-11-08 18:56:51,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:56:51,647 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 897 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:51,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 2709 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:56:51,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-08 18:56:51,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1247. [2024-11-08 18:56:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 943 states have (on average 1.3658536585365855) internal successors, (1288), 961 states have internal predecessors, (1288), 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) [2024-11-08 18:56:51,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1737 transitions. [2024-11-08 18:56:51,792 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1737 transitions. Word has length 82 [2024-11-08 18:56:51,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:51,795 INFO L471 AbstractCegarLoop]: Abstraction has 1247 states and 1737 transitions. [2024-11-08 18:56:51,795 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) [2024-11-08 18:56:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1737 transitions. [2024-11-08 18:56:51,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:56:51,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:51,799 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:51,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:56:52,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:52,001 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:52,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:52,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2075924900, now seen corresponding path program 1 times [2024-11-08 18:56:52,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:52,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579069473] [2024-11-08 18:56:52,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:52,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:52,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:52,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:52,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:56:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:52,950 INFO L255 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:56:52,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:56:53,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:53,523 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:53,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579069473] [2024-11-08 18:56:53,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579069473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:53,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:53,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:56:53,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501644889] [2024-11-08 18:56:53,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:53,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:56:53,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:53,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:56:53,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:56:53,527 INFO L87 Difference]: Start difference. First operand 1247 states and 1737 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:56:54,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:54,318 INFO L93 Difference]: Finished difference Result 3690 states and 5187 transitions. [2024-11-08 18:56:54,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:56:54,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2024-11-08 18:56:54,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:54,341 INFO L225 Difference]: With dead ends: 3690 [2024-11-08 18:56:54,341 INFO L226 Difference]: Without dead ends: 2459 [2024-11-08 18:56:54,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:56:54,351 INFO L432 NwaCegarLoop]: 941 mSDtfsCounter, 873 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 873 SdHoareTripleChecker+Valid, 3686 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:54,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [873 Valid, 3686 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:56:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2024-11-08 18:56:54,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2451. [2024-11-08 18:56:54,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2451 states, 1856 states have (on average 1.3679956896551724) internal successors, (2539), 1892 states have internal predecessors, (2539), 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) [2024-11-08 18:56:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2451 states to 2451 states and 3452 transitions. [2024-11-08 18:56:54,612 INFO L78 Accepts]: Start accepts. Automaton has 2451 states and 3452 transitions. Word has length 87 [2024-11-08 18:56:54,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:54,615 INFO L471 AbstractCegarLoop]: Abstraction has 2451 states and 3452 transitions. [2024-11-08 18:56:54,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:56:54,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2451 states and 3452 transitions. [2024-11-08 18:56:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-08 18:56:54,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:54,633 INFO L215 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:56:54,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:56:54,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:54,834 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:54,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:54,835 INFO L85 PathProgramCache]: Analyzing trace with hash -720885946, now seen corresponding path program 1 times [2024-11-08 18:56:54,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:54,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137277441] [2024-11-08 18:56:54,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:54,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:54,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:54,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:54,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:56:55,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:55,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:56:55,843 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:55,956 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:56:55,956 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:55,956 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:55,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137277441] [2024-11-08 18:56:55,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137277441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:55,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:55,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:56:55,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006067581] [2024-11-08 18:56:55,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:55,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:56:55,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:55,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:56:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:55,962 INFO L87 Difference]: Start difference. First operand 2451 states and 3452 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 18:56:56,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:56,713 INFO L93 Difference]: Finished difference Result 6233 states and 8738 transitions. [2024-11-08 18:56:56,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:56:56,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2024-11-08 18:56:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:56,744 INFO L225 Difference]: With dead ends: 6233 [2024-11-08 18:56:56,744 INFO L226 Difference]: Without dead ends: 3806 [2024-11-08 18:56:56,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:56,758 INFO L432 NwaCegarLoop]: 910 mSDtfsCounter, 511 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:56:56,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 1738 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:56:56,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2024-11-08 18:56:57,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3794. [2024-11-08 18:56:57,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3794 states, 2886 states have (on average 1.367983367983368) internal successors, (3948), 2929 states have internal predecessors, (3948), 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) [2024-11-08 18:56:57,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3794 states to 3794 states and 5305 transitions. [2024-11-08 18:56:57,095 INFO L78 Accepts]: Start accepts. Automaton has 3794 states and 5305 transitions. Word has length 133 [2024-11-08 18:56:57,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:57,096 INFO L471 AbstractCegarLoop]: Abstraction has 3794 states and 5305 transitions. [2024-11-08 18:56:57,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-08 18:56:57,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3794 states and 5305 transitions. [2024-11-08 18:56:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-08 18:56:57,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:57,107 INFO L215 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] [2024-11-08 18:56:57,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:56:57,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:57,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:57,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -512786284, now seen corresponding path program 1 times [2024-11-08 18:56:57,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:57,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683965462] [2024-11-08 18:56:57,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:57,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:57,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:57,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:57,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:56:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:56:58,336 INFO L255 TraceCheckSpWp]: Trace formula consists of 741 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:56:58,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:56:58,445 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-08 18:56:58,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:56:58,446 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:56:58,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683965462] [2024-11-08 18:56:58,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683965462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:56:58,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:56:58,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:56:58,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181498100] [2024-11-08 18:56:58,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:56:58,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:56:58,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:56:58,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:56:58,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:58,449 INFO L87 Difference]: Start difference. First operand 3794 states and 5305 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:56:58,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:56:58,800 INFO L93 Difference]: Finished difference Result 5702 states and 8039 transitions. [2024-11-08 18:56:58,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:56:58,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 151 [2024-11-08 18:56:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:56:58,833 INFO L225 Difference]: With dead ends: 5702 [2024-11-08 18:56:58,833 INFO L226 Difference]: Without dead ends: 3802 [2024-11-08 18:56:58,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:56:58,844 INFO L432 NwaCegarLoop]: 900 mSDtfsCounter, 3 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1792 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 [2024-11-08 18:56:58,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1792 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:56:58,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2024-11-08 18:56:59,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 3802. [2024-11-08 18:56:59,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3802 states, 2894 states have (on average 1.3669661368348307) internal successors, (3956), 2937 states have internal predecessors, (3956), 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) [2024-11-08 18:56:59,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3802 states to 3802 states and 5313 transitions. [2024-11-08 18:56:59,162 INFO L78 Accepts]: Start accepts. Automaton has 3802 states and 5313 transitions. Word has length 151 [2024-11-08 18:56:59,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:56:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 3802 states and 5313 transitions. [2024-11-08 18:56:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 18:56:59,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3802 states and 5313 transitions. [2024-11-08 18:56:59,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 18:56:59,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:56:59,181 INFO L215 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] [2024-11-08 18:56:59,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:56:59,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:59,382 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:56:59,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:56:59,383 INFO L85 PathProgramCache]: Analyzing trace with hash 2018922485, now seen corresponding path program 1 times [2024-11-08 18:56:59,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:56:59,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214882140] [2024-11-08 18:56:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:56:59,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:56:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:56:59,385 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:56:59,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:57:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:00,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:57:00,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-08 18:57:00,584 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:00,584 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:00,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214882140] [2024-11-08 18:57:00,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214882140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:00,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:00,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:00,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955638450] [2024-11-08 18:57:00,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:00,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:00,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:00,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:00,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:00,587 INFO L87 Difference]: Start difference. First operand 3802 states and 5313 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 18:57:04,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:05,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:05,387 INFO L93 Difference]: Finished difference Result 9471 states and 13226 transitions. [2024-11-08 18:57:05,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:05,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 153 [2024-11-08 18:57:05,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:05,426 INFO L225 Difference]: With dead ends: 9471 [2024-11-08 18:57:05,427 INFO L226 Difference]: Without dead ends: 5693 [2024-11-08 18:57:05,439 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:05,441 INFO L432 NwaCegarLoop]: 1360 mSDtfsCounter, 698 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:05,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 2164 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 44 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 18:57:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5693 states. [2024-11-08 18:57:05,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5693 to 5681. [2024-11-08 18:57:05,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5681 states, 4364 states have (on average 1.366865261228231) internal successors, (5965), 4422 states have internal predecessors, (5965), 920 states have call successors, (920), 397 states have call predecessors, (920), 396 states have return successors, (999), 905 states have call predecessors, (999), 919 states have call successors, (999) [2024-11-08 18:57:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5681 states to 5681 states and 7884 transitions. [2024-11-08 18:57:05,955 INFO L78 Accepts]: Start accepts. Automaton has 5681 states and 7884 transitions. Word has length 153 [2024-11-08 18:57:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:05,956 INFO L471 AbstractCegarLoop]: Abstraction has 5681 states and 7884 transitions. [2024-11-08 18:57:05,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-08 18:57:05,956 INFO L276 IsEmpty]: Start isEmpty. Operand 5681 states and 7884 transitions. [2024-11-08 18:57:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-08 18:57:05,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:05,969 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:05,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:06,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:06,169 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:06,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash 734592400, now seen corresponding path program 1 times [2024-11-08 18:57:06,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:06,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949895815] [2024-11-08 18:57:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:06,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:06,172 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:06,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:57:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:07,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:57:07,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-08 18:57:07,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:07,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:07,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949895815] [2024-11-08 18:57:07,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949895815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:07,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:07,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:57:07,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867876784] [2024-11-08 18:57:07,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:07,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:57:07,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:07,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:57:07,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:07,174 INFO L87 Difference]: Start difference. First operand 5681 states and 7884 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 18:57:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:07,714 INFO L93 Difference]: Finished difference Result 13774 states and 18951 transitions. [2024-11-08 18:57:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:57:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 156 [2024-11-08 18:57:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:07,766 INFO L225 Difference]: With dead ends: 13774 [2024-11-08 18:57:07,767 INFO L226 Difference]: Without dead ends: 8117 [2024-11-08 18:57:07,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:57:07,787 INFO L432 NwaCegarLoop]: 1261 mSDtfsCounter, 562 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:07,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 2119 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:57:07,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8117 states. [2024-11-08 18:57:08,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8117 to 8085. [2024-11-08 18:57:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8085 states, 6236 states have (on average 1.357280307889673) internal successors, (8464), 6336 states have internal predecessors, (8464), 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) [2024-11-08 18:57:08,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8085 states to 8085 states and 11057 transitions. [2024-11-08 18:57:08,400 INFO L78 Accepts]: Start accepts. Automaton has 8085 states and 11057 transitions. Word has length 156 [2024-11-08 18:57:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:08,401 INFO L471 AbstractCegarLoop]: Abstraction has 8085 states and 11057 transitions. [2024-11-08 18:57:08,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-08 18:57:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 8085 states and 11057 transitions. [2024-11-08 18:57:08,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-08 18:57:08,420 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:08,420 INFO L215 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, 1, 1] [2024-11-08 18:57:08,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:57:08,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:08,621 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:08,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1049904136, now seen corresponding path program 1 times [2024-11-08 18:57:08,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:08,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [758287261] [2024-11-08 18:57:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:08,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:08,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:08,624 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:08,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:57:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:09,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:57:09,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-08 18:57:10,744 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:10,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758287261] [2024-11-08 18:57:10,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758287261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:10,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:10,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 18:57:10,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420407952] [2024-11-08 18:57:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:57:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:10,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:57:10,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:57:10,747 INFO L87 Difference]: Start difference. First operand 8085 states and 11057 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:57:14,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:18,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:57:33,096 INFO L93 Difference]: Finished difference Result 17371 states and 23841 transitions. [2024-11-08 18:57:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:57:33,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2024-11-08 18:57:33,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:57:33,158 INFO L225 Difference]: With dead ends: 17371 [2024-11-08 18:57:33,158 INFO L226 Difference]: Without dead ends: 9321 [2024-11-08 18:57:33,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:57:33,184 INFO L432 NwaCegarLoop]: 818 mSDtfsCounter, 1322 mSDsluCounter, 2401 mSDsCounter, 0 mSdLazyCounter, 1633 mSolverCounterSat, 381 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 3219 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 381 IncrementalHoareTripleChecker+Valid, 1633 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:57:33,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 3219 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [381 Valid, 1633 Invalid, 2 Unknown, 0 Unchecked, 21.5s Time] [2024-11-08 18:57:33,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9321 states. [2024-11-08 18:57:33,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9321 to 8921. [2024-11-08 18:57:34,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8921 states, 6812 states have (on average 1.344098649442161) internal successors, (9156), 6950 states have internal predecessors, (9156), 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) [2024-11-08 18:57:34,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8921 states to 8921 states and 12103 transitions. [2024-11-08 18:57:34,061 INFO L78 Accepts]: Start accepts. Automaton has 8921 states and 12103 transitions. Word has length 158 [2024-11-08 18:57:34,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:57:34,062 INFO L471 AbstractCegarLoop]: Abstraction has 8921 states and 12103 transitions. [2024-11-08 18:57:34,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-08 18:57:34,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8921 states and 12103 transitions. [2024-11-08 18:57:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-08 18:57:34,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:34,089 INFO L215 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] [2024-11-08 18:57:34,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 18:57:34,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:34,290 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:57:34,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:34,291 INFO L85 PathProgramCache]: Analyzing trace with hash 983485696, now seen corresponding path program 1 times [2024-11-08 18:57:34,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:34,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386427675] [2024-11-08 18:57:34,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:34,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:34,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:34,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:34,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:57:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:57:35,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 18:57:35,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:57:36,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2024-11-08 18:57:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-08 18:57:36,440 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:57:36,440 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:57:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386427675] [2024-11-08 18:57:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386427675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:57:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:57:36,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:57:36,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732274356] [2024-11-08 18:57:36,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:57:36,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:57:36,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:57:36,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:57:36,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:57:36,444 INFO L87 Difference]: Start difference. First operand 8921 states and 12103 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-08 18:57:40,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:44,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:48,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:52,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:57:56,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:00,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:08,966 INFO L93 Difference]: Finished difference Result 17867 states and 24257 transitions. [2024-11-08 18:58:08,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:58:08,969 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 193 [2024-11-08 18:58:08,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:09,039 INFO L225 Difference]: With dead ends: 17867 [2024-11-08 18:58:09,039 INFO L226 Difference]: Without dead ends: 8981 [2024-11-08 18:58:09,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:58:09,070 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 3 mSDsluCounter, 5895 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6786 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:09,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6786 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 415 Invalid, 6 Unknown, 0 Unchecked, 31.9s Time] [2024-11-08 18:58:09,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8981 states. [2024-11-08 18:58:09,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8981 to 8981. [2024-11-08 18:58:09,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8981 states, 6872 states have (on average 1.3428405122235156) internal successors, (9228), 7010 states have internal predecessors, (9228), 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) [2024-11-08 18:58:09,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8981 states to 8981 states and 12175 transitions. [2024-11-08 18:58:09,888 INFO L78 Accepts]: Start accepts. Automaton has 8981 states and 12175 transitions. Word has length 193 [2024-11-08 18:58:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:09,889 INFO L471 AbstractCegarLoop]: Abstraction has 8981 states and 12175 transitions. [2024-11-08 18:58:09,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2024-11-08 18:58:09,890 INFO L276 IsEmpty]: Start isEmpty. Operand 8981 states and 12175 transitions. [2024-11-08 18:58:09,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-08 18:58:09,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:09,916 INFO L215 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] [2024-11-08 18:58:09,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:58:10,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:10,118 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:10,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:10,119 INFO L85 PathProgramCache]: Analyzing trace with hash 490859522, now seen corresponding path program 1 times [2024-11-08 18:58:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:10,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568941398] [2024-11-08 18:58:10,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:10,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:10,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:10,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:10,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:58:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:11,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:58:11,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:11,844 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-08 18:58:11,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:11,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:11,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568941398] [2024-11-08 18:58:11,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568941398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:11,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:11,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:58:11,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898831224] [2024-11-08 18:58:11,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:11,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:58:11,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:11,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:58:11,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:11,848 INFO L87 Difference]: Start difference. First operand 8981 states and 12175 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:58:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:12,515 INFO L93 Difference]: Finished difference Result 17993 states and 24492 transitions. [2024-11-08 18:58:12,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:58:12,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) Word has length 193 [2024-11-08 18:58:12,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:12,576 INFO L225 Difference]: With dead ends: 17993 [2024-11-08 18:58:12,576 INFO L226 Difference]: Without dead ends: 9047 [2024-11-08 18:58:12,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:12,607 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 0 mSDsluCounter, 2692 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:12,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3591 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:12,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9047 states. [2024-11-08 18:58:13,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9047 to 9045. [2024-11-08 18:58:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9045 states, 6920 states have (on average 1.3404624277456647) internal successors, (9276), 7058 states have internal predecessors, (9276), 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) [2024-11-08 18:58:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9045 states to 9045 states and 12247 transitions. [2024-11-08 18:58:13,374 INFO L78 Accepts]: Start accepts. Automaton has 9045 states and 12247 transitions. Word has length 193 [2024-11-08 18:58:13,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:13,375 INFO L471 AbstractCegarLoop]: Abstraction has 9045 states and 12247 transitions. [2024-11-08 18:58:13,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 3 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-08 18:58:13,375 INFO L276 IsEmpty]: Start isEmpty. Operand 9045 states and 12247 transitions. [2024-11-08 18:58:13,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-11-08 18:58:13,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:13,397 INFO L215 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] [2024-11-08 18:58:13,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 18:58:13,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:13,602 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:13,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:13,603 INFO L85 PathProgramCache]: Analyzing trace with hash 772301118, now seen corresponding path program 1 times [2024-11-08 18:58:13,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:13,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1585876909] [2024-11-08 18:58:13,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:13,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:13,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:13,607 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:13,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:58:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:14,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:14,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:15,126 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-08 18:58:15,127 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:15,127 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:15,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585876909] [2024-11-08 18:58:15,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585876909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:15,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:15,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:58:15,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639348874] [2024-11-08 18:58:15,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:15,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:15,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:15,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:15,131 INFO L87 Difference]: Start difference. First operand 9045 states and 12247 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2024-11-08 18:58:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:15,728 INFO L93 Difference]: Finished difference Result 18079 states and 24485 transitions. [2024-11-08 18:58:15,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:15,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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 200 [2024-11-08 18:58:15,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:15,778 INFO L225 Difference]: With dead ends: 18079 [2024-11-08 18:58:15,778 INFO L226 Difference]: Without dead ends: 9069 [2024-11-08 18:58:15,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:15,800 INFO L432 NwaCegarLoop]: 901 mSDtfsCounter, 0 mSDsluCounter, 1792 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:15,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2693 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9069 states. [2024-11-08 18:58:16,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9069 to 9069. [2024-11-08 18:58:16,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9069 states, 6944 states have (on average 1.3392857142857142) internal successors, (9300), 7082 states have internal predecessors, (9300), 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) [2024-11-08 18:58:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9069 states to 9069 states and 12271 transitions. [2024-11-08 18:58:16,613 INFO L78 Accepts]: Start accepts. Automaton has 9069 states and 12271 transitions. Word has length 200 [2024-11-08 18:58:16,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:16,615 INFO L471 AbstractCegarLoop]: Abstraction has 9069 states and 12271 transitions. [2024-11-08 18:58:16,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 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) [2024-11-08 18:58:16,616 INFO L276 IsEmpty]: Start isEmpty. Operand 9069 states and 12271 transitions. [2024-11-08 18:58:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-08 18:58:16,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:16,640 INFO L215 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] [2024-11-08 18:58:16,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 18:58:16,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:16,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:58:16,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:16,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1739748868, now seen corresponding path program 1 times [2024-11-08 18:58:16,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:58:16,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1323075754] [2024-11-08 18:58:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:16,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:16,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:16,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:16,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 18:58:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:18,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:58:18,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-08 18:58:20,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2024-11-08 18:58:24,503 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:58:24,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323075754] [2024-11-08 18:58:24,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323075754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:24,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:58:24,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-08 18:58:24,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050519017] [2024-11-08 18:58:24,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:24,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 18:58:24,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:58:24,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 18:58:24,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-08 18:58:24,507 INFO L87 Difference]: Start difference. First operand 9069 states and 12271 transitions. Second operand has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 9 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (37), 12 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-08 18:58:28,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:32,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:36,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:40,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:44,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:48,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:52,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:58:56,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:59:00,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:59:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:59:44,445 INFO L93 Difference]: Finished difference Result 27519 states and 38035 transitions. [2024-11-08 18:59:44,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 18:59:44,446 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 9 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (37), 12 states have call predecessors, (37), 9 states have call successors, (37) Word has length 204 [2024-11-08 18:59:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:59:44,556 INFO L225 Difference]: With dead ends: 27519 [2024-11-08 18:59:44,557 INFO L226 Difference]: Without dead ends: 22521 [2024-11-08 18:59:44,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=204, Invalid=552, Unknown=0, NotChecked=0, Total=756 [2024-11-08 18:59:44,584 INFO L432 NwaCegarLoop]: 1313 mSDtfsCounter, 8084 mSDsluCounter, 7578 mSDsCounter, 0 mSdLazyCounter, 4562 mSolverCounterSat, 2659 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8301 SdHoareTripleChecker+Valid, 8891 SdHoareTripleChecker+Invalid, 7230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2659 IncrementalHoareTripleChecker+Valid, 4562 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 77.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:59:44,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8301 Valid, 8891 Invalid, 7230 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2659 Valid, 4562 Invalid, 9 Unknown, 0 Unchecked, 77.0s Time] [2024-11-08 18:59:44,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22521 states. [2024-11-08 18:59:46,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22521 to 22309. [2024-11-08 18:59:46,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22309 states, 17094 states have (on average 1.3435123435123435) internal successors, (22966), 17468 states have internal predecessors, (22966), 3421 states have call successors, (3421), 1642 states have call predecessors, (3421), 1793 states have return successors, (4072), 3412 states have call predecessors, (4072), 3420 states have call successors, (4072) [2024-11-08 18:59:46,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22309 states to 22309 states and 30459 transitions. [2024-11-08 18:59:46,328 INFO L78 Accepts]: Start accepts. Automaton has 22309 states and 30459 transitions. Word has length 204 [2024-11-08 18:59:46,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:59:46,330 INFO L471 AbstractCegarLoop]: Abstraction has 22309 states and 30459 transitions. [2024-11-08 18:59:46,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 13.0) internal successors, (195), 15 states have internal predecessors, (195), 9 states have call successors, (38), 6 states have call predecessors, (38), 9 states have return successors, (37), 12 states have call predecessors, (37), 9 states have call successors, (37) [2024-11-08 18:59:46,331 INFO L276 IsEmpty]: Start isEmpty. Operand 22309 states and 30459 transitions. [2024-11-08 18:59:46,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-08 18:59:46,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:59:46,352 INFO L215 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] [2024-11-08 18:59:46,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 18:59:46,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:46,553 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:59:46,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:59:46,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1084823380, now seen corresponding path program 1 times [2024-11-08 18:59:46,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:59:46,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368443636] [2024-11-08 18:59:46,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:59:46,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:46,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:59:46,558 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:59:46,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:59:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:47,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:59:47,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:59:47,844 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-08 18:59:47,844 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:59:47,845 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:59:47,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368443636] [2024-11-08 18:59:47,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368443636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:59:47,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:59:47,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:59:47,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302573269] [2024-11-08 18:59:47,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:59:47,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:59:47,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:59:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:59:47,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:59:47,848 INFO L87 Difference]: Start difference. First operand 22309 states and 30459 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-08 18:59:51,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:59:54,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:59:54,026 INFO L93 Difference]: Finished difference Result 52896 states and 72003 transitions. [2024-11-08 18:59:54,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:59:54,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 220 [2024-11-08 18:59:54,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:59:54,181 INFO L225 Difference]: With dead ends: 52896 [2024-11-08 18:59:54,181 INFO L226 Difference]: Without dead ends: 30622 [2024-11-08 18:59:54,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:59:54,239 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 717 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 4119 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:59:54,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 4119 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 18:59:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30622 states. [2024-11-08 18:59:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30622 to 22349. [2024-11-08 18:59:56,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22349 states, 17134 states have (on average 1.3427104003735264) internal successors, (23006), 17508 states have internal predecessors, (23006), 3421 states have call successors, (3421), 1642 states have call predecessors, (3421), 1793 states have return successors, (4072), 3412 states have call predecessors, (4072), 3420 states have call successors, (4072) [2024-11-08 18:59:56,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22349 states to 22349 states and 30499 transitions. [2024-11-08 18:59:56,279 INFO L78 Accepts]: Start accepts. Automaton has 22349 states and 30499 transitions. Word has length 220 [2024-11-08 18:59:56,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:59:56,280 INFO L471 AbstractCegarLoop]: Abstraction has 22349 states and 30499 transitions. [2024-11-08 18:59:56,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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) [2024-11-08 18:59:56,280 INFO L276 IsEmpty]: Start isEmpty. Operand 22349 states and 30499 transitions. [2024-11-08 18:59:56,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-08 18:59:56,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:59:56,298 INFO L215 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] [2024-11-08 18:59:56,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-08 18:59:56,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:56,500 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:59:56,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:59:56,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2147126395, now seen corresponding path program 1 times [2024-11-08 18:59:56,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:59:56,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [150351221] [2024-11-08 18:59:56,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:59:56,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:59:56,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:59:56,505 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:59:56,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-08 18:59:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:59:57,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:59:57,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:59:57,853 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-11-08 18:59:57,854 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:59:57,854 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:59:57,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150351221] [2024-11-08 18:59:57,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150351221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:59:57,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:59:57,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:59:57,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095436733] [2024-11-08 18:59:57,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:59:57,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:59:57,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:59:57,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:59:57,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:59:57,858 INFO L87 Difference]: Start difference. First operand 22349 states and 30499 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-08 18:59:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:59:59,676 INFO L93 Difference]: Finished difference Result 40687 states and 55963 transitions. [2024-11-08 18:59:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:59:59,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 206 [2024-11-08 18:59:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:59:59,764 INFO L225 Difference]: With dead ends: 40687 [2024-11-08 18:59:59,765 INFO L226 Difference]: Without dead ends: 22409 [2024-11-08 18:59:59,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:59:59,811 INFO L432 NwaCegarLoop]: 895 mSDtfsCounter, 0 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:59:59,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2679 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:59:59,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22409 states. [2024-11-08 19:00:01,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22409 to 22409. [2024-11-08 19:00:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22409 states, 17194 states have (on average 1.3426776782598582) internal successors, (23086), 17568 states have internal predecessors, (23086), 3421 states have call successors, (3421), 1642 states have call predecessors, (3421), 1793 states have return successors, (4072), 3412 states have call predecessors, (4072), 3420 states have call successors, (4072) [2024-11-08 19:00:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22409 states to 22409 states and 30579 transitions. [2024-11-08 19:00:01,811 INFO L78 Accepts]: Start accepts. Automaton has 22409 states and 30579 transitions. Word has length 206 [2024-11-08 19:00:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:00:01,812 INFO L471 AbstractCegarLoop]: Abstraction has 22409 states and 30579 transitions. [2024-11-08 19:00:01,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-11-08 19:00:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 22409 states and 30579 transitions. [2024-11-08 19:00:01,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2024-11-08 19:00:01,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:00:01,838 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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] [2024-11-08 19:00:01,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-08 19:00:02,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:02,039 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:00:02,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:00:02,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1039212972, now seen corresponding path program 1 times [2024-11-08 19:00:02,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:00:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873188100] [2024-11-08 19:00:02,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:00:02,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:02,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:00:02,044 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:00:02,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-08 19:00:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:00:03,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-08 19:00:03,484 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:00:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-08 19:00:05,230 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:00:05,231 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:00:05,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873188100] [2024-11-08 19:00:05,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873188100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:00:05,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:00:05,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 19:00:05,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060069311] [2024-11-08 19:00:05,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:00:05,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 19:00:05,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:00:05,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 19:00:05,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:00:05,234 INFO L87 Difference]: Start difference. First operand 22409 states and 30579 transitions. Second operand has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 9 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-08 19:00:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:00:07,814 INFO L93 Difference]: Finished difference Result 45315 states and 61968 transitions. [2024-11-08 19:00:07,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 19:00:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 9 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24) Word has length 208 [2024-11-08 19:00:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:00:07,920 INFO L225 Difference]: With dead ends: 45315 [2024-11-08 19:00:07,920 INFO L226 Difference]: Without dead ends: 22941 [2024-11-08 19:00:07,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-08 19:00:07,982 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 10 mSDsluCounter, 9248 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10177 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 19:00:07,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10177 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 19:00:08,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22941 states. [2024-11-08 19:00:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22941 to 22629. [2024-11-08 19:00:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22629 states, 17350 states have (on average 1.3372910662824207) internal successors, (23202), 17726 states have internal predecessors, (23202), 3421 states have call successors, (3421), 1642 states have call predecessors, (3421), 1857 states have return successors, (4158), 3474 states have call predecessors, (4158), 3420 states have call successors, (4158) [2024-11-08 19:00:10,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22629 states to 22629 states and 30781 transitions. [2024-11-08 19:00:10,899 INFO L78 Accepts]: Start accepts. Automaton has 22629 states and 30781 transitions. Word has length 208 [2024-11-08 19:00:10,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:00:10,900 INFO L471 AbstractCegarLoop]: Abstraction has 22629 states and 30781 transitions. [2024-11-08 19:00:10,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.166666666666666) internal successors, (122), 9 states have internal predecessors, (122), 3 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 3 states have call successors, (24) [2024-11-08 19:00:10,901 INFO L276 IsEmpty]: Start isEmpty. Operand 22629 states and 30781 transitions. [2024-11-08 19:00:10,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-08 19:00:10,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:00:10,925 INFO L215 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] [2024-11-08 19:00:10,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-08 19:00:11,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:11,126 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:00:11,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:00:11,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1668262147, now seen corresponding path program 1 times [2024-11-08 19:00:11,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:00:11,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333751750] [2024-11-08 19:00:11,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:00:11,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:11,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:00:11,131 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:00:11,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-08 19:00:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:00:12,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 19:00:12,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 19:00:12,672 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 283 trivial. 0 not checked. [2024-11-08 19:00:12,672 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 19:00:12,672 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 19:00:12,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333751750] [2024-11-08 19:00:12,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333751750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 19:00:12,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 19:00:12,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 19:00:12,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653275671] [2024-11-08 19:00:12,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 19:00:12,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 19:00:12,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 19:00:12,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 19:00:12,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 19:00:12,675 INFO L87 Difference]: Start difference. First operand 22629 states and 30781 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-11-08 19:00:16,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 19:00:19,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 19:00:19,387 INFO L93 Difference]: Finished difference Result 53690 states and 72799 transitions. [2024-11-08 19:00:19,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 19:00:19,388 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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 231 [2024-11-08 19:00:19,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 19:00:19,523 INFO L225 Difference]: With dead ends: 53690 [2024-11-08 19:00:19,523 INFO L226 Difference]: Without dead ends: 31096 [2024-11-08 19:00:19,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 19:00:19,579 INFO L432 NwaCegarLoop]: 1568 mSDtfsCounter, 727 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 5542 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 19:00:19,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 5542 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 19:00:19,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31096 states. [2024-11-08 19:00:21,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31096 to 22649. [2024-11-08 19:00:21,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22649 states, 17370 states have (on average 1.336902705814623) internal successors, (23222), 17726 states have internal predecessors, (23222), 3421 states have call successors, (3421), 1642 states have call predecessors, (3421), 1857 states have return successors, (4158), 3474 states have call predecessors, (4158), 3420 states have call successors, (4158) [2024-11-08 19:00:22,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22649 states to 22649 states and 30801 transitions. [2024-11-08 19:00:22,088 INFO L78 Accepts]: Start accepts. Automaton has 22649 states and 30801 transitions. Word has length 231 [2024-11-08 19:00:22,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 19:00:22,088 INFO L471 AbstractCegarLoop]: Abstraction has 22649 states and 30801 transitions. [2024-11-08 19:00:22,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 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) [2024-11-08 19:00:22,089 INFO L276 IsEmpty]: Start isEmpty. Operand 22649 states and 30801 transitions. [2024-11-08 19:00:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-08 19:00:22,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:00:22,100 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:00:22,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-08 19:00:22,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:22,301 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 19:00:22,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:00:22,302 INFO L85 PathProgramCache]: Analyzing trace with hash 952271614, now seen corresponding path program 1 times [2024-11-08 19:00:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:00:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854884311] [2024-11-08 19:00:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:00:22,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:00:22,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:00:22,305 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:00:22,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c08b43a7-1583-45ce-9e0a-fc4237cb53d5/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process